PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Shuqun Zhang,Yiyuan He,Peng Xiang,Jun Li,Yunfei Zhi,Yunfei He,Shaoyun Shan
Water-based inks offer a sustainable alternative to solvent-based systems, yet their performance remains limited by particle sedimentation, poor dispersion, and insufficient film adhesion. In this study, multifunctional hybrid microspheres (SiO 2 -g-R-P) were synthesized by sequentially grafting rosin-derived acrylates and polyethylene glycol (PEG) onto silica particles. The rosin shell enhances compatibility with polyurethane–acrylic binders, while PEG chains provide steric stabilization and hydrophilicity. When incorporated at 1.5 wt% into water-based inks, the modified microspheres markedly improved dispersion stability (ζ potential = −51.6 mV), suppressed sedimentation for over 60 days, and enhanced low-shear viscosity by forming a weak reversible 3D particle network, with the formation of this network demonstrated via oscillatory rheometry (average G″ = 0.35 Pa, average G′ = 7.82 Pa). The resulting inks achieved high-resolution image transfer and strong substrate adhesion (ASTM D3359 rating 2B to 5B) on both paper and steel substrates, outperforming the unmodified formulation. These improvements stem from the synergistic effects of hydrogen bonding, steric hindrance, and particle–matrix interactions at the ink–film interface. This surface-engineering strategy provides a scalable and environmentally friendly approach for developing high-performance inks with enhanced print fidelity, mechanical durability, and colloidal stability across various substrate types.
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DOI
高影响因子
FUEL
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2025
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IF 7.5
Li Zhu,Jing Ma,Yuyu Wang,Song Qiao,Min Xu,Bolong Zhao,Lei Wang,Tianmiao Zhang,Yonggang Sun,Yulong Ma
As a common solid waste in the coal chemical industry, coal gasification fine slag (CGFS) requires resource utilization, which is an inevitable requirement for the clean development of coal chemical enterprises. In this work, composite materials (M x CGFS-800-H) were fabricated from CGFS as the raw material via a desilication-reconstruction-pore expansion strategy using different activators. Characterization results showed that adsorption sites and abundant pore structures (with a specific surface area of 221.73 m 2 /g) were provided for the catalyst by residual carbon; nepheline formation was promoted by NaOH, iron species were stabilized, and aluminum elements were removed during acid washing, ensuring that iron species were transformed into active sites. Specifically, M N1 CGFS-800-H activated by NaOH exhibited excellent performance in activating peroxymonosulfate (PMS) for the degradation of bisphenol A (BPA). The carbon-ash synergy enabled M N1 CGFS-800-H to remove 99.60 % of BPA within 60 min, with a mineralization degree reaching 52.85 %. Functional groups (C=O) and iron species were responsible for the generation of reactive oxygen species (ROS), thereby facilitating the degradation of pollutants. The M N1 CGFS-800-H/PMS system showed strong resistance to saline ions interference and was highly reusable. This study provided a new method for the synergistic utilization of carbon and ash in CGFS.
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高影响因子
PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Peng Xu,Xinwei Wang,Tianguan Wang,Xinyu Zhao,Jingsha Tan,Wenfeng Ge,Bo Zhang,Guozhe Meng
To overcome the limited protective performance of waterborne epoxy (WEP) coatings, a novel scalable cerium-polyphenol-amine ternary system (Ce-TA-PEI, CTP) was synthesized via a simple dynamic supramolecular self-assembly strategy. The material effectively anchored corrosion-inhibiting cerium ions within its network through cerium-phenolic coordination, achieving an exceptionally high cerium loading capacity of 20.3 wt%. The polyphenol–amine crosslinked network of the CTP nanocontainer can form chemical bonds with the epoxy matrix, ensuring good interfacial compatibility and significantly reducing the intrinsic defects of the coating. Consequently, the dry and wet adhesion strengths of the coating increased to 3.13 MPa and 2.99 MPa, respectively. After 60 days of immersion in 3.5 wt% NaCl solution, the | Z | 0.01Hz value of CTP2/WEP remained as high as 1.21 × 10 9 Ω·cm 2 , more than an order of magnitude greater than that of pure WEP (1.05 × 10 8 Ω·cm 2 ). In addition, UV–Vis analysis confirmed that CTP is pH-responsive and can sustain continuous cerium release for up to 144 h. This behavior arises from changes in coordination strength between cerium ions and phenolic hydroxyl groups, together with variations in electrostatic interactions within the CTP framework under different pH conditions, which promote rapid cerium release in acidic environments. When incorporated into WEP coatings, this “smart” nanocontainer responded dynamically to localized acidic corrosion at coating defects. It not only enhanced the physical barrier properties of the coating but also imparted active self-healing functionality. This work therefore provides a new strategy for advancing environmentally friendly WEP coatings toward broad engineering applications.
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高影响因子
PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Jiaqi Zhang,Jianing Xu,Jingshu Zhang,Min Huang,Ze Sun,Shuchen Liu,Chao Zhou
In this study, a novel long-chain hydrophobic chain extender (DOD) was synthesized via a thiol-olefin click reaction. The molecular structure of DOD integrated the rigid benzene ring derived from bisphenol and the flexible alkyl chain from octadecyl thiol. Waterborne polyurethane (DWPU) emulsions were synthesized as a series via stepwise polymerization, with isophorone diisocyanate (IPDI) and polytetrahydrofuran ether diol (PTMG) serving as the essential monomers. System characterization demonstrated that the material's optimal comprehensive performance was obtained at a DOD content of 3 wt%. At this content, the tensile strength reached 28.00 MPa, the elongation at break increases to 1161.36 %, and thermal stability was improved, with T max2 rising to 423.1 °C. Concurrently, hydrophobicity was enhanced, as evidenced by a water contact angle of 88.3° and a reduced water absorption rate of 7.01 %. This enhancement stems from the incorporation of alkyl long-chain structures and benzene rings. When applied to leather finishing, the DWPU-3 coating exhibited enhanced glossiness (69.7 GU), an increased water contact angle of 86.6°, and improved wear resistance, with a gloss loss rate of 38.12 %, which was significantly superior to that of the unmodified system. This research established a new paradigm for creating high-efficiency, ecologically compatible leather finishing systems.
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高影响因子
FUEL
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2025
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IF 7.5
Zhaohui Zhou,Qun Zhang,Xianglong Cui,Lu Han,Bo Zhang,Xinyuan Zou,Fan Zhang,Yuanning Yue,Jian Fan,Haoran Wang,Yibin Liu,Hao Yan,Xiang Feng,Xiaobo Chen,Chaohe Yang
The alkylation of unsaturated organic and aromatic hydrocarbons represents a pivotal class of synthetic reactions with significant implications in both industrial and academic research. Furthermore, cyclohexylbenzene, synthesized via the alkylation of benzene with cyclohexene, represents a high-value-added fuel additive owing to its exceptionally high cetane number. However, it still remains challenging due to the insufficient activation of double bond-containing organic substrate over traditional phosphotungstate catalysts. In this study, we develop a single Pt atom doped phosphotungstate, as Pt 1 -NH 4 -PW catalyst, through a coprecipitation method, for the alkylation of cyclohexene with benzene. Compared to pristine NH 4 -PW, Pt 1 -NH 4 -PW catalyst consists of the electronic reconstructed Pt 1 -O pair coordinated with [PW 12 O 40 ] 3− . Such structure shows a typical synergistic interaction characteristic, where the Pt atom of the Pt 1 -O structure serves as a Lewis acid site to accept the electron from the C=C bond, and the nearby O functions as hydrogen acceptors to promote C–H bond activation of benzene. Consequently, the Pt 1 -NH 4 -PW catalyst demonstrates a threefold enhancement in catalytic activity compared to NH 4 -PW for the alkylation of cyclohexene with benzene. The catalytic system further demonstrated exceptional performance in diverse transformations, including alkylation of benzene with either 1-hexene or 1-dodecene, and conversion of biomass-derived methyl oleate into high-value chemicals through alkylation.
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高影响因子
PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Ketian Gao,Xuemei Bai,Xueyan Gong,Bo Yu,Xiaowei Pei,Xiaoduo Zhao,Zhengfeng Ma,Wufang Yang,Feng Zhou
Solvent-based antifouling coatings, widely used in marine environments, not only posed health risks to construction workers but also threatened the sustainability of marine ecosystems. To develop antifouling coatings with low volatile organic compound (VOC) content was urgent needed consequently. In this study, waterborne zinc acrylate self-polishing emulsions (WZSEs) were synthesized via free-radical polymerization, and corresponding waterborne antifouling coatings were developed. Infrared spectroscopy, thermogravimetric analysis, gel permeation chromatography, rheometer, dynamic light scattering, scanning electron microscopy, and three-dimensional profilometry were employed to character the physicochemical properties of the coatings. The wetting behavior, mechanical properties, and antifouling component release kinetics were evaluated through contact angle measurements, adhesion testing, and atomic absorption spectroscopy. Importantly, the relationship between the content of self-polishing component and the antifouling performance of coatings in both laboratory and marine field was investigated. Experimental results revealed that the coatings achieved more than 98 % antifouling efficiency against typical fouling organisms, such as diatom Diplophora and green algae Chlorella . When the self-polishing component content exceeded 20 wt%, the coatings exhibited quasi-static antifouling effect for up to 180 days and dynamic antifouling effect for up to 8 cycles (320 days) under real marine conditions. Meanwhile, the coatings demonstrated a substrate adhesion strength of 4.8 MPa, a release rate of antifoulants below 1.0 μg/cm 2 ·day −1 , and an abrasion rate of approximately 11.25 μm/month. Finally, the practical antifouling performance was validated through a 12 months field test on a ship in marine conditions, confirming their considerable potential to replace conventional solvent-based antifouling technologies. This study therefore offers an alternative prototype for the development of waterborne, environmentally friendly marine antifouling coatings.
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高影响因子
PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Yeyun Meng,Shengyuan Liang,Zixia Zhang
In recent years, the growing awareness of environmental protection has led to significant attention being directed toward fluorine-free water-repellent agents in the textile industry. In this study, we developed an environmentally friendly approach to synthesize a bio-based fluorine-free branched polyurethane water-repellent agent specifically designed for cotton fabrics (CFs). The synthesis process involved three sequential steps: First, epoxy soybean oil polyol (DESO) was prepared through the reaction of soybean oil with dimeric acid. Subsequently, reactive waterborne polyurethane (RDPU) was synthesized by combining DESO with isophorone diisocyanate (IPDI), dimethylolpropionic acid (DMPA), and 2-hydroxyethyl acrylate (2-HEA). Finally, the bio-based fluorine-free branched polyurethane water repellent (HPU) was fabricated by utilizing RDPU as the primary component, with PET4A serving as the crosslinking agent and SA as the co-monomer. The results demonstrate that CFs treated with the HPU water-repellent agent performed outstandingly, achieving an exceptional water-repellency rating of 95 and a high water contact angle (WCA) of 145°, as well as remarkable surface stability. Furthermore, the softness of the finished CFs was objectively evaluated using an instrument. The results showed that the finished CFs possessed high softness, which was mainly attributed to the introduction of long alkyl chains.
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DOI
高影响因子
FUEL
·
2025
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IF 7.5
Guoyang Zhao,Yafei Guo,Pu Huang,Zhouzhou Zhang,Chuanwen Zhao
Developing highly efficient and robust catalysts for low-temperature CO oxidation is essential for CO abatement in sintering flue gas. CuO-Co 3 O 4 catalysts incorporated with transition metal oxides (TMOs) of CeO 2 , ZrO 2 , NiO or Fe 2 O 3 were synthesized using the sol–gel method. The crystalline structure, morphology, electronic structure, surface active sites and redox properties of the composite catalysts were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), CO temperature-programmed desorption (CO-TPD), H 2 temperature-programmed reduction (H 2 -TPR), and O 2 temperature-programmed oxidation (O 2 -TPO). The influence of incorporating TMO on CO oxidation performance of the composite catalysts was thoroughly investigated. Results indicated that incorporating CeO 2 and ZrO 2 enhanced the CO oxidation activity of CuO-Co 3 O 4 significantly, achieving notably low T 100 temperatures of 134 °C and 150°C. The desired CuO-Co 3 O 4 -CeO 2 and CuO-Co 3 O 4 -ZrO 2 composite catalysts also showed outstanding CO oxidation kinetics performance with low activation energies of 25.36 and 26.41 kJ/mol, and remarkable time-on-stream stability, sustaining a near 100 % CO conversion rate for up to 25 h. The superior CO oxidation performance was associated with the smaller crystallite sizes, uniformly dispersed active sites, abundant oxygen vacancies, and enhanced redox properties, all of which stemmed from the strengthened interfacial interactions among the metal oxides upon CeO 2 and ZrO 2 incorporation. These findings offer valuable insights into the structure–property-activity relationships of the CuO-Co 3 O 4 -TMO composite catalysts, positioning the CuO-Co 3 O 4 -CeO 2 and CuO-Co 3 O 4 -ZrO 2 samples as promising candidates for low-temperature CO oxidation in sintering flue gas treatment.
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高影响因子
MINERALS ENGINEERING
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2025
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IF 5
Qifang Zheng,Peilun Shen,Yuqiang Mao,Liuyang Dong,Dianwen Liu
Arsenopyrite is commonly found in pyrite concentrates. High-temperature pyrometallurgy produces highly toxic arsenic vapor, while hydrometallurgy generates arsenic-containing wastewater. Flotation is an effective pretreatment method for arsenic removal. This study investigated the selective depression behavior and mechanism of D-penicillamine (DP) on arsenopyrite flotation. Single-mineral and artificial mixed-mineral tests revealed that at a DP concentration of 7 × 10 –4 mol/L, the mixed concentrate had As grade and recovery of 7.34 % and 17.40 %, respectively. This indicates the selective depressive effect of DP on arsenopyrite, enabling effective flotation separation from pyrite. DP adsorption significantly reduced the hydrophobicity of the arsenopyrite surface, with minimal impact on pyrite. Columnar adsorption peaks were observed on the arsenopyrite surface. This suggests coordination between the N and S atoms of DP molecules and the As sites on the arsenopyrite surface, forming N–As and S–As complexes. A hydrophilic film approximately 11.03 Å thick formed on the arsenopyrite (001) surface, which hindered further collector adsorption. This study provides a green and pollution-free approach for the flotation separation of S–As.
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高影响因子
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
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2025
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IF 16.3
Xiaolong Wang,Wenhao Li,Mingzhu Xie,Xiaowei Wang,Yong Shuai,Zhaolong Wang
As the demand for sustainable energy continues to rise, the development of high-efficient hydrogen (H 2 ) production via water electrolysis based on precise bubble manipulation is garnering significant attention. This study presents a novel three-dimensional (3D) micro-cone engineered electrode to enhance the ion exchange rate and catalytic active site regeneration during the electrochemical water splitting process, thereby improving H 2 production rates. The unique micro-cones enables precise manipulation of H 2 bubble behavior, which achieves directional transport from nucleation to detachment at the top within a mere 224 ms. Simultaneously, the bubble manipulation performance of micro-cones with varying geometric configurations and dimensional parameters is investigated. The optimal bubble manipulation performance is achieved when the micro-cones have a circular base with a diameter of 100 μm, a height of 300 μm, and an array center distance of 100 μm. The performance of the 3D micro-cone engineered electrode outperforms conventional commercial electrodes, with its capacitance ( C dl ) value reaching 35.1 mF cm −2 , which is significantly higher than those of Ni foam and Ni-CP. Additionally, under a 1.7 V vs. RHE condition, the electrode achieves a current density of 80 mA cm −2 , with a H 2 collection rate 32.3 % higher than that of a Ni foam under identical conditions. Large-scale outdoor experiments driven by solar energy further confirm the scalability and stability of the micro-cone engineered electrodes, which is capable of producing substantial H 2 quantities over extended periods without bubbles blockage. The large-area micro-cone electrodes, when operated continuously under high outdoor current density, still exhibit excellent H 2 production and bubble directional manipulation stability. This research highlights the transformative impacts of advanced electrode design on water electrolysis efficiency and H 2 bubbles manipulation, offering new insights for ultra-high efficient sustainable H 2 production.
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高影响因子
GENE
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2025
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IF 2.4
Jiadi Wang,Zhirui Zhang,Yue Liu,Beiting Zong,Yixuan Lu,Yuhang Li,Jing Yao
Background Dry Eye Disease (DED) is an ocular surface disease characterized by reduced tear secretion, abnormal fluid dynamics, and decreased tear quality, leading to instability of the tear film. It is accompanied by eye discomfort, visual impairment, and ocular surface tissue damage. DED is not only associated with the death of corneal epithelial cells but also involves damage to multiple ocular surface tissues, including the meibomian glands, lacrimal glands, conjunctival cells, and goblet cells. Ferroptosis plays a role in corneal epithelial cell death and keratopathy, but its underlying mechanisms remain unclear and require further investigation. Methods This study utilized the GSE208297 dataset (from the Gene Expression Omnibus, GEO) to analyze the gene expression profiles of Mus musculus with DED. Five untreated DED samples and five normal control samples were selected for differential gene expression analysis to identify ferroptosis-related differentially expressed genes (FRDEGs). Based on these FRDEGs, comparative gene expression analysis, functional enrichment analysis, and small-molecule interaction network analysis were conducted. Additionally, gene set enrichment analysis (GSEA) and gene set variation analysis (GSVA) were performed, and immune infiltration analysis was conducted. A rat model of DED was induced using benzalkonium chloride (Benzalkonium chloride, 0.2 % solution, 5 µl, twice daily for 15 days). The tear secretion was assessed by the Schirmer I test, and structural changes in corneal tissue were observed by hematoxylin and eosin (HE) staining. Mitochondrial changes were examined by transmission electron microscopy (TEM), and ferroptosis was confirmed using malondialdehyde (MDA) and glutathione (GSH) kits. RT-PCR was used for the validation of gene expression analysis, confirming the mRNA expression changes of 8 key genes in the corneal tissue of DED rats. Results Differential gene expression analysis identified 136 genes with abnormal expression. After intersecting these genes with 833 known ferroptosis-related genes, 13 FRDEGs were identified. These genes were primarily enriched in functions related to muscle tissue development, regulation of white blood cell differentiation, positive regulation of apoptosis signaling pathways, and inflammatory response regulation, as well as KEGG pathways such as MAPK, TNF, and IL-17 signaling. Immune cell infiltration analysis revealed significant differences in immune cell infiltration between DED and control groups, with CD8 T cells, macrophages, and NK cells showing correlations with the expression of FRDEGs. In the small-molecule interaction network analysis, eight key genes (ARNTL, ATF3, CCL5, JUN, KRT14, MYC, NR4A1, and TNF) exhibited strong interaction relationships with other small molecules. RT-PCR verification confirmed significant mRNA expression changes of these eight key genes in the corneal tissue of DED rats. MDA and GSH experiments further confirmed the ferroptosis phenotype in the corneas of DED rats, and TEM and HE staining showed corneal epithelial damage and mitochondrial cristae reduction. Conclusions Ferroptosis plays a key role in corneal cell death and keratopathy, amplifying inflammatory responses and contributing to the pathogenesis of DED. This study provides new molecular targets for therapeutic interventions in DED and reveals the potential mechanisms of ferroptosis in immune responses.
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DOI
PubMed
高影响因子
APPLIED CLAY SCIENCE
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2025
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IF 5.8
Ze-Wei Ke,Yu-Xin Liu,Sheng-Jie Wei,Peng Shen,Kun Yang,Yun-Min Chen,Yu-Chao Li
Per - and polyfluoroalkyl substances (PFAS) pose significant environmental and human health concerns due to their extreme persistence and bioaccumulation potential, and widespread contamination. Conventional clay-based barriers, such as geosynthetic clay liners, exhibit limited PFAS containment capabilities owing to their inherently low adsorption capacity. To overcome this challenge, this paper synthesized hexadecyltrimethylammonium-modified bentonite (HDTMA-NaB) as a high-performance adsorbent for engineered containment applications. Comprehensive batch adsorption experiments demonstrated that HDTMA-NaB achieves substantially greater PFAS adsorption capacity compared to pristine bentonite, with adsorption kinetics following a pseudo-second-order model and isotherms were well-described by both Langmuir and Freundlich models. Molecular dynamics simulations unveiled a distinctive “head-attracted, tail-parallel” adsorption configuration, where PFAS molecules align with HDTMA surfactants within montmorillonite interlayers. Chain-length-dependent adsorption patterns were observed, with short-chain PFAS preferentially adsorbing at clay particle edges while long-chain PFAS penetrated deeper into interlayer spaces. Potential of mean force analysis quantitatively verified stronger adsorption affinity for long-chain PFAS, consistent with adsorption experiment observations, through deeper and more numerous energy minima. Thermodynamic analysis indicated that PFAS adsorption was driven by both enthalpic and entropic contributions, with entropy playing the dominant role. The entropic contribution primarily arose from hydrophobic interactions between PFAS fluorinated carbon chains and HDTMA alkyl chains, providing a mechanistic explanation for the observed chain-length-dependent adsorption behavior in adsorption experiments. Meanwhile, the enthalpic contribution arose from electrostatic attraction between PFAS anionic headgroups and HDTMA cationic trimethylammonium groups. These molecular-scale insights provide a fundamental basis for designing high-performance clay-based containment systems for PFAS mitigation.
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高影响因子
危险品化学品经营许可证（带存储）