Materials Today Communications
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2025
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IF 4.5
Dong Kong,Lu Mei,Guoyun Tang,Bingsheng Xu,Zhuo Chen,Zhangfu Yuan
Super-hydrophobic nickel-cobalt (Ni-Co) alloy coating was fabricated on Q235 steel by single-step electrodeposition, without any post-treatment with low-surface-energy agents. The influence of NH 4 Cl concentration on surface morphology, chemical composition, thickness, crystal structure, wettability, and corrosion performance was systematically investigated. Characterization techniques included scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and a contact-angle goniometer, while corrosion behavior was evaluated by Tafel polarization and electrochemical impedance spectroscopy (EIS). The results showed that the addition of crystal modifier NH 4 Cl did not affect the thickness and phase structure of Ni-Co coating but affected the composition and micro-morphology of the coating. With the increase of NH 4 Cl concentration, the cobalt content of the coatings gradually decreased, the nickel content gradually increased, and the micromorphology of the coatings changed from a prismatic cone-like structure to a sea urchin-like micro-nano structure. The contact angle of the Ni-Co coating prepared by 150 g/L NH 4 Cl was 152.56°, showing stable super-hydrophobicity, the self-corrosion current density ( I corr ) of the coating was the smallest, and the polarization resistance ( R p ) was the largest, which had the best corrosion resistance. After 12 h immersion in 3.5 wt% NaCl the coating retained its morphology and a contact angle above 150°, with only minor localized corrosion products, confirming durable super-hydrophobicity and superior anticorrosion performance.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Qinghai Long,Yutao Bai,Anteng Dai,Huajie Qiu,Xuanang Fu,Xiaoyun Chen,Chao Liu,Waseem Hayat,Bihong Lv,Guohua Jing,Zuoming Zhou
In this study, 2-dibutylaminoethanol imidazole ([DBAE][Im]) was developed as a novel ionic liquid for energy-efficient CO₂ capture to address key challenges, such as high energy consumption and elevated regeneration temperatures, associated with conventional amine-based absorbents. The self-extractable behavior of [DBAE][Im] facilitated reversible liquid–liquid phase separation during CO₂ absorption and desorption. The CO 2 absorption loading of the [DBAE][Im] solution (0.5 mol·L −1 ) reached 0.82 mol·mol −1 at 313.15 K, and the regeneration efficiency remained high at 87 % even after five consecutive regeneration cycles at 371.15 K. The reaction and self-extraction mechanisms were determined using carbon nuclear magnetic resonance spectroscopy and quantum chemical calculations. These analyses revealed that the significant polarity difference and weak hydrogen bonding between [DBAE][Im] and water (H₂O) induced a phase transition before CO 2 absorption. During absorption, CO 2 reacted with [DBAE][Im] to form carbamate/bicarbonate (HCO₃ − /CO₃ 2− ) species, which resulted in a homogeneous solution due to the decreased polarity of CO₂ products and the strong hydrogen bonds formed between the products and H₂O. Following thermal desorption, [DBAE][Im] separated into the upper phase, restoring its high polarity and reducing intermolecular hydrogen bonding with H₂O. Owing to its self-extraction capability, the regeneration rate of [DBAE][Im] improved significantly at 371.15 K, while the regeneration heat duty was reduced by 47 % compared to monoethanolamine. The results demonstrate that the novel aqueous [DBAE][Im] absorbent offers substantial energy savings for CO₂ capture, presenting a promising approach for advancing carbon capture technologies.
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FOOD CHEMISTRY
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2025
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IF 9.8
Rongmi Zhou,Fangfang Ni,Shiyi Wu,Xinyu Wang,Jing Ming,Lantong Zhang,Lijuan Dong,Zhijun Song,Gerui Ren,Min Huang,Shuangbin Xu,Qiong Zhang,Khaled F. El-Massry,Hujun Xie
Lactobacillus plantarum (LP) and curcumin (CUR) were co-encapsulated in sodium alginate– Lactobacillus plantarum– curcumin–gelatin (ALG–LP–CUR–GE) hydrogel beads to evaluate the synergistic function of probiotics and prebiotics. The encapsulation efficiency of LP and CUR peaked at 84.6 % and 94.7 %, respectively. Results of scanning electron microscope, Fourier transform infrared spectrometry, and X-ray diffraction confirmed the encapsulation of LP and CUR in the hydrogel beads. In vitro digestion suggested that both CUR and LP can achieve successful release in the simulated intestinal fluid. The release kinetics of CUR showed that it exhibited predominantly Fickian release and non-Fickian release in gastric fluid and intestinal fluid, respectively. The application of co-encapsulated hydrogel beads in mimic milk tea illustrated that the viable count of LP remained above the minimum recommended threshold of 10 7 CFU/mL, offering a promising avenue for the delivery of synergistic probiotic and prebiotic functionalities.
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PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Jingru Chen,Nian Liu,Hongzhou Zheng,Linshan Jia,Xiaohong Hou,Jianhua Qu,Xiaoli Huang,Qi Hu
With the increasing demand for sustainable energy, enzyme-catalyzed biodiesel preparation has garnered significant interest owing to its green and efficient characteristics. However, conventional immobilized lipase (LIP) is susceptible to desorption and inactivation and fails to balance the catalytic efficiency and stability, limitations that seriously restrict the industrial application. To address this, we constructed a carrier through hydrophobically modifying University of Oslo-66-NH 2 (UiO-66-NH 2 ), an amino-functionalized metal-organic framework (MOF), with octadecylphosphonic acid (OPA). Subsequently, OPA/UiO-66-NH 2 was employed to immobilize LIP. Under optimal conditions, the immobilization capacity of OPA/UiO-66-NH 2 @LIP reached 48.59 mg/g. Compared to free LIP, OPA/UiO-66-NH 2 @LIP exhibited superior thermostability, pH adaptability, and storage stability, retaining 85.0 % activity after 30 days. Using sunflower oil as the substrate, a biodiesel conversion of 84.8 % was achieved under optimized parameters. After adding 2 % fatty acid methyl ester ethoxylate (FMEE), interfacial activation enhanced the catalytic efficiency, increasing the conversion to 99.2 %, moreover, this value remained at 84.1 % after ten cycles. This study combines carrier engineering with interfacial activation to develop a novel nano-immobilized biocatalyst with promising potential for biodiesel synthesis.
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PubMed
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Nano Materials Science
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2025
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IF 17.9
Yang He,Qingling Ruan,Han Kang,Ling Ye,Ya-Xiong Wang,Tiefeng Liu,Hairong Cheng,Xingxing Gu
Li-S batteries (LSBs), with their exceptional theoretical energy density, are widely recognized as a leading option for future energy storage solutions. Nevertheless, on the way to commercialization, the poor conductivity of the positive electrode, the easy dissolution loss of the active substance, and the serious dendrite growth of the negative electrode are stumbling blocks. Therefore, this work designs a novel tungsten and nitrogen-co-doped nanoporous carbon (W,N-C) with multifunction: chemically adsorbs the polysulfides to inhibit shuttling behavior, accelerates Li + transfer, and catalyzes polysulfides redox to address the aforementioned issues of LSBs. As expected at the beginning of the design, the prepared W,N-C-5/S composites cathodes demonstrate excellent performances, i.e., delivering an initial capacity of 944.9 mAh g −1 and a reversible capacity of 771.7 mAh g −1 after 500 cycles at 1 C, significantly outperforming the N-C/S contrast sample. The proposed method offers a feasible solution for boosting the electrochemical performance of LSBs.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
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IF 8.3
Liwu Qiang,Xuemin Yang,He Xiao,Peipei Zhao,Qinyun Yan,Wei Wen,Chunmei Liu,Qilin Guo,Yanxia Zhang,Man Zhao,Jianfeng Jia
Electrolytic water splitting for hydrogen production is considered as one of the promising directions due to its environmental friendliness and high generated hydrogen purity. To address the high overpotential caused by the sluggish kinetics of the oxygen evolution reaction (OER), a modified four-electrode system has been designed to synthesize bifunctional PtCo/graphene (PtCo/G) composites, which feature dual active sites. This method allows for the electrolysis of Pt at a high voltage (30 V) and Co at a lower voltage (10 V), while graphene is prepared through the exfoliation of graphite sheets at the cathode. This process concurrently resolves the issues of differential dissolution voltages between Pt and Co and the poor conductivity of the material, achieving the efficient synthesis of metal/graphene composites. The PtCo/G-2h composite exhibits excellent electrocatalytic activity. In the 0.5 M H 2 SO 4 , the overpotential for hydrogen evolution reaction (HER) at 10 mA cm −2 is 18 mV lower than that of commercial Pt/C catalyst. In 1 M KOH, PtCo/G-2h demonstrates superior electrocatalytic OER activity, with an overpotential at 10 mA cm −2 that is only 2 mV higher than that of the commercial RuO 2 catalyst. As a bifunctional catalyst for water electrolysis, the PtCo/G composites can effectively facilitate the adsorption of OH − ions, and assist in altering the rate-determining step, thus significantly reducing the activation energy (E a ) of the reaction. This work introduces a novel approach for the synthesis of graphene-based materials using a self-designed electrochemical method.
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Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Qiansheng Li,Yi Dai,Hong Lu,Xiaoman Li,Fanghao Cheng,Jiti Zhou
Microbial-driven Fenton reactions are essential sources of reactive oxygen species in the aqueous environment and important pathways for pollutant degradation. However, their rates are usually limited by microbial respiration. Herein, N and Fe co-doped CDs (N, Fe-CDs) were used to construct a biological Fenton system with marine community YEP-1 for ketoprofen (KTP) removal. The addition of N, Fe-CDs significantly increased the aerobic degradation rate of KTP by 60.8 % at 48 h. Further analysis showed that N, Fe-CDs enhanced the microbial electron transfer system activity of YEP-1 to produce more H 2 O 2 . Moreover, the regeneration of Fe(II) in extracellular N, Fe-CDs was achieved under aerobic conditions, which was beneficial to activate the extracellular H 2 O 2 for more ·OH generation. Based on the metagenome analysis, N, Fe-CDs significantly increased the populations of genera Exiguobacterium , Leucobacter and Microbacterium . The enriched genes related to electron transfer and Fe(III) reduction were found to be closely associated with Microbacterium . Furthermore, the relative abundances of genes related to the chemotaxis and degradation of aromatic compounds were also increased. These results indicated that biological enzyme-catalyzed processes and N, Fe-CD-mediated Fenton reaction were jointly involved in KTP degradation. This work further advances our understanding of N, Fe-CDs-mediated microbial Fenton reactions.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
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IF 3.9
Shan Li,Huixia Li,Taotao Huang,Xuebo Chen
The development of efficient Cu–Ce catalysts for selective CO oxidation in hydrogen streams (CO-PROX) remains a critical challenge for hydrogen purification technologies. Herein, we report an acid-modified Cu–Ce/γ-Al2O3 catalyst synthesized through HCl-assisted wet impregnation and thermal aging, demonstrating exceptional low-temperature CO-PROX performance. The optimized CuCe0.8(Cl)0.2/γ-Al2O3 catalyst achieves superior CO conversion below 160 °C and maintains stable activity for 50 h at 160 °C. Mechanistic studies reveal that HCl modification induces dual enhancement effects: (1) increased Cu+ species density enhances CO adsorption capacity; (2) elevated Ce3+ concentration promotes oxygen vacancy formation for efficient O2 activation. Complementary characterization demonstrates that the acid treatment optimizes the active species dispersion and creates hierarchical pore structures in the γ-Al2O3 support, which facilitates reactant accessibility and stabilizes catalytic intermediates. The reaction mechanism involves synergistic cooperation between Cu+-mediated CO adsorption, oxygen vacancy-assisted O2 activation, and hydroxyl-assisted bicarbonate intermediate formation on the alumina support. This work establishes an effective acid-modification strategy for designing durable CO-PROX catalysts, advancing the development of a practical hydrogen purification system.
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ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Jian Zhang,Jia-Fang Xie,Jie-Jie Chen,Wen-Wei Li,Jia-Cheng E. Yang,Yu-Ming Zheng,Han-Qing Yu
Heterogeneous peroxymonosulfate (PMS) activation is of great potential for sustainably degrading antibiotics included emerging contaminants from water. However, developing synthetic metal catalysts with incompatible mass transfer and optimized metal sites to effectively enable low-levels PMS activation and antibiotics removal is challenging. Herein, a protein-like Co catalyst of spatially hierarchical hydrophilicity is synthesized by constructing flower-like Mg/Al layered double hydroxide (LDH) on super-active carbon (AC) to disperse thin-layer Co(OH) 2 along the edge of LDH. The resulting AC-LDH@Co(OH) 2 catalyst demonstrates an impressive antibiotic removal of ≈80% within 15 s and turnover frequency of 45.72 min −1 based on catalyst mass by activating 0.075 mM PMS, surpassing single-atom catalysts included reports. In a fixed-bed reactor with secondary wastewater effluent, AC-LDH@Co(OH) 2 realizes complete removal of norfloxacin for 66 h with neutral effluent pH and negligible metal leaching. Experiments combined with theoretical computations reveal that the protein-like complex not only accelerates transfer of low-levels hydrophilic PMS and hydrophobic antibiotics, but also stably confines Co sites with regulated electronic structure for multiply reactive oxygen species generation.
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ADVANCED FUNCTIONAL MATERIALS
·
2025
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IF 19
Wenjun Li,Jianyou Feng,Haoyu Zhang,Chengqiang Tang,Jinyan Li,Ziwei Liu,Yiqing Yang,Jiajia Wang,Kun Zhang,Songlin Zhang,Huisheng Peng,Xuemei Sun
Fiber electrochemical sensors hold great promise for wearable and implantable biomedical monitoring due to their miniature size and excellent compatibility with biological tissues. However, their application in stable and long-term monitoring, particularly in vivo, has been hindered by structural instability and inconsistent performance stemming from conventional fabrication approaches based on surface functionalization. Here, a novel co-extrusion strategy is presented to enable continuous fabrication of highly stable and performance-consistent fiber electrochemical sensors, through co-extruding sensing active materials with poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) suspension. Utilizing this strategy, a series of co-extruded fiber sensors (EFSs) tailored for versatile biochemical sensing, including hydrogen peroxide (H 2 O 2 ), ascorbic acid (AA), and glucose are developed. Benefiting from the uniform embedding of active materials within interpenetrating conductive polymer networks, the EFSs exhibited robust structural integrity and functional stability under complex dynamic conditions (e.g., cyclic bending and friction) and prolonged liquid immersion, along with highly consistent performance with deviations < 5%. Furthermore, after implantation in mice, the EFSs demonstrated stable subcutaneous monitoring of H 2 O 2 under dynamic biological environments and continuous intracerebral monitoring of AA over 14 days. This co-extrusion strategy offers a promising pathway for the scalable fabrication of high-performance fiber electrochemical sensors and other bioelectronic devices with exceptional stability and consistency.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Yuxuan Dai,Shenghan Gao,Zhi Zhang,Wan-Jie Du,Xinyu Bao,Yun Xu
Alzheimer's disease (AD) has displayed complex pathological features, in which oxidative stress and ferroptosis play important roles. The development of collaborative treatment methods aimed at multiple pathological factors is particularly important for effective alleviation of AD. In our research, a multifunctional delivery system (CART-CeO 2 )@HA was developed for the co-delivery of neuroprotective Cocaine- and amphetamine-regulated transcript (CART) peptides and antioxidant CeO 2 nanozymes encapsulated within an ROS-responsive nanogel. Under the stimulation of Aβ, (CART-CeO 2 )@HA exhibited effective relief for cell apoptosis, mitochondrial dysfunction and synaptic loss on account of ROS removal and ferrous ions chelation. With sufficient accumulation and sustained drug release in the brain of APP/PS1 mice, (CART-CeO 2 )@HA significantly reduced the levels of oxidative stress and ferroptosis, which facilitate the reduction of Aβ deposition and the repair of neuronal damage, jointly rescuing the cognitive impairment in APP/PS1 mice. These results verified the clinical potential of the multi-target delivery system in AD synergistic therapy.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
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IF 13.2
Wanlong Li,Yuqing Ren,Quan Feng,Xianhong Zheng,Xiangyun Zhou,Jianghui Zhao,Zhi Liu
Flexibility is critical to the dimensional stability of photothermal materials during sustainable solar water evaporation. Herein, a flexible Cu 2 O-Cu co-doped carbon (Cu 2 O-Cu@C) nanofibrous membrane was fabricated by carbonization of polyacrylonitrile (PAN)/Cu(CH 3 COO) 2 nanofiber membrane at 400 °C. This process transformed Cu(CH 3 COO) 2 into a mixture of Cu 2 O and Cu. The Cu 2 O-Cu@C membrane achieved a significantly enhanced stress at break of 3.95 MPa—a 14.6-fold enhancement over pure carbon membranes (0.27 MPa). Moreover, the membrane exhibited excellent flexibility, as it recovered its original shape within 40 ms after folding and maintained its dimensional integrity throughout 1000 bending cycles. Raman spectroscopy and molecular dynamics simulations demonstrated that Cu 2 O-Cu co-doping dramatically improves mechanical properties by (1) increasing density, which enhances structural densification, (2) introducing new interatomic energy contributions that strengthen interfacial interactions, and (3) improving stress transfer and crack inhibition to promote external force dissipation. Under one sun illumination, the Cu 2 O-Cu@C nanofibrous membrane achieved evaporation rates of 1.57 kg·m −2 ·h −1 for 3.5 % saline water and 1.61 kg·m −2 ·h −1 for actual dye wastewater. In addition, following hydrophilic hydrogel modification, the Cu 2 O-Cu@C membrane maintained a stable evaporation rate exceeding 1.76 kg·m −2 ·h −1 during 10-h indoor tests. It also showed no salt crystallization in outdoor testing, confirming its salt resistance and long-term stability for practical applications. These findings will encourage research aimed at enhancing the mechanical properties of PAN-based carbon nanofibers, which are intended for applications in flexible photothermal evaporators, wearable electronics, and related devices.
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