EUROPEAN POLYMER JOURNAL
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2026
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IF 6.8
Xueying Wang,Sheng Huang,Shuanjin Wang,Lehui Hu,Liang Wang,Dongmei Han,Min Xiao,Yuezhong Meng
A series of CO 2 -based polycarbonate methacrylates (PPC(P)MAs) were synthesized in one step from CO 2 -based polycarbonate macrodiols (PPC(P)DLs) and methacrylic anhydride. These PPC(P)MAs were formulated with hydroxy urethane methacrylate (HUMA) prepolymer, reactive diluent and photoinitiator to produce a series of CO 2 -based non-isocyanate polyurethane (NIPU) UV-curable coatings. The resulting coatings exhibited excellent curing performance, with gel contents exceeding 94%, and 5% mass loss thermal decomposition temperature up to 286℃. When applied to polycarbonate (PC) substrates, all coatings displayed outstanding luminous transmittance (∼90%), adhesion (5B) and flexibility (1 mm). Notably, the coating prepared from PPCPMA achieved a pencil hardness of 4H. Furthermore, formulations incorporating TMPTA showed remarkable long-term water resistance, maintaining their appearance and adhesion unchanged after immersion in 60℃ water for ten days. This work provides not only a high-performance protective solution for PC-based components but also a viable green synthesis route for sustainable coatings.
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Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 2
·121475
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IF 7.2
Ruipu Yao,Min Xiao,Xiaolong Yu,Xu Jin,Yicheng Dai,Mi Feng,Jiaxing Huang,Jianteng Sun
Atrazine, one of the widely used triazine herbicides, has been proven to endanger both aquatic ecosystems and human health. Herein, the degradation mechanisms of atrazine via ultraviolet-driven persulfate (UV/PDS) and toxicity evolution of its intermediates were specially concentrated. The UV/PDS system demonstrated the exceptional degradation efficacy of atrazine, and the kinetics reaction followed a pseudo first-order kinetic model ( k obs =0.1356 min −1 ). Radical quenching tests and EPR analysis validated that •OH, SO 4 •− , O 2 •- mediated the decomposition of atrazine. The presence of HPO 4 2− and natural organic matter exerted a conspicuous suppression on atrazine removal, whereas Cl − displayed a limited adverse effect. The density functional theory (DFT) and Orbitrap-HRMS manifested that atrazine was destructed through dealkylation, dechloro-hydroxylation and alkyl chain oxidation. Toxicity prediction of these intermediates unmasked that most of them exhibited lower acute toxicity and bioaccumulation effects compared to the pristine atrazine. Effective detoxification of atrazine was confirmed by the observed decline in MDA levels and the recovery of Na +/ K + -ATPase activity and membrane potential in E. coli following UV/PDS treatment. The high-efficient removal of UV/PDS for broad-spectrum antibiotics proved the feasibility for pharmaceutical wastewater. This work afforded novel perspectives on the ecological risks of atrazine intermediates, generating crucial recommendations for the elimination of emerging contaminants through UV-AOPs.
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DIAMOND AND RELATED MATERIALS
·
2026
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IF 5.1
Shifeng Ji,Zhuo Li,Yunqing Xing,Nan Yao,Yingjie Zhang,Changbing Ye,Guohua Wang,Maogang Hu,Chunmei Gao
Heterojunction-structured graphitic carbon nitride@bismuth oxyiodide (g-C 3 N 4 @BiOI) nanocomposites were successfully synthesized via a facile solvothermal method. The as-prepared composites were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and UV–visible diffuse reflectance spectroscopy (UV–vis DRS) to elucidate their microstructure, chemical composition, and optical properties. Subsequently, a highly efficient UV/g-C₃N₄@BiOI/H₂O₂ photocatalytic system was developed for the rapid degradation of diethylenetriamine (DETA). Under optimal conditions (initial pH 10.3, 0.4 mL/L H₂O₂, and 0.06 g/L 50 wt% g-C₃N₄@BiOI), the system achieved 95% DETA removal within 30 min under UV irradiation. Notably, cyclic degradation tests coupled with post-characterization revealed the exceptional stability and reusability of the g-C₃N₄@BiOI nanocomposite. Mechanistic studies through radical quenching experiments and electron paramagnetic resonance (EPR) spectroscopy confirmed •OH as the primary reactive species. Furthermore, the degradation pathways were elucidated by combining Gaussian 09 W theoretical calculations with gas chromatography–mass spectrometry (GC–MS) analysis. Finally, the toxicity evaluation model was established by toxicity evaluation software, and the experiments of mung bean germination and zebra fish egg incubation verified the effective detoxification of DETA solution after photocatalytic treatment.
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INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
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2026
·Vol. 27
·期 2
·705
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IF 4.9
Di Chen,Aoyun Meng,Zhen Li,Jinfeng Zhang
Designing and constructing heterojunctions has emerged as a pivotal strategy for improving the photocatalytic efficiency of semiconductors. In this study, we report the controlled synthesis of an Au/Zn3In2S6Schottky junction through a combination of hydrothermal and in situ photodeposition methods. The structural, morphological, and photoelectrochemical properties of the catalyst were meticulously characterized using a suite of techniques including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), diffuse reflectance spectroscopy (DRS), X-ray photoelectron spectroscopy (XPS), photoelectrochemical (PEC) measurements, and electron spin resonance (ESR) spectroscopy. The optimized 3% Au/Zn3In2S6composite exhibited a remarkable enhancement in both photocatalytic activity and stability, achieving a 90.4% removal of bisphenol A (BPA) under UV–visible light irradiation within 100 min. The corresponding first-order reaction rate constant was approximately 1.366 h−1, nearly 4.37 times greater than that of the pristine Zn3In2S6. This substantial improvement can be attributed to several key factors, including increased BPA adsorption, enhanced light absorption, and the efficient charge separation facilitated by the Au/Zn3In2S6heterojunction. Photogenerated holes, superoxide radicals, and hydroxyl radicals were identified as the primary reactive species responsible for the BPA degradation. This work highlights the potential of metal-modified semiconductors for advanced photocatalytic applications, offering insights into the design of highly efficient materials for environmental remediation.
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CHINESE CHEMICAL LETTERS
·
2023
·Vol. 35
·期 9
·109235
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IF 9.1
Pu Zhang,Xiang Mao,Xuehua Dong,Ling Huang,Liling Cao,Daojiang Gao,Guohong Zou
Finding suitable strategies to effectively enhance the optical properties of materials are the goal being pursued by researchers. Herein, cation-anion synergetic interactions strategy was proposed to develop two novel organic-inorganic hybrid antimony-based optical materials , (C 3 H 5 N 2 )SbF 2 SO 4 ( I ) and (C 5 H 6 N)SbF 2 SO 4 ( II ), which were obtained by introducing Sb 3+ cation containing stereochemically active lone-pair (SCALP) and organic π -conjugated cations into sulphate system. The synergistic interactions of the organic π -conjugated cations, the inorganic [SbO 2 F 2 ] 3− seesaw anions and the [SO 4 ] 2− distorted tetrahedra anions make their ultraviolet (UV) absorption edges approach 297 and 283 nm, respectively, and raise their birefringence up to 0.193@546 nm and 0.179@546 nm, respectively. Interestingly, although the two compounds have the same stoichiometric ratio and similar one-dimensional (1D) chain structure, they show opposite macroscopic symmetry, where the NCS compound ( II ) exhibits a large second-harmonic generation (SHG) response (1.6 times that of KH 2 PO 4 ). The two reported compounds are found to be promising UV optical materials in the experimental tests.
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CRYSTAL GROWTH & DESIGN
·
2024
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IF 3.2
Juhe Liu,Yuwei Chen,Mengran Sun,Wenhao Liu,Xianghe Meng,Jiyong Yao
Na3LuB8O15, the first sodium lutetium borate in the Na–Lu–B–O system, was prepared by the spontaneous crystallization method. Na3LuB8O15 is crystallized in the centrosymmetric triclinic space group P1¯ with the following cell parameters: a = 6.4047(12)Å, b = 7.3342(13)Å, c = 13.081(2)Å, α = 88.999(7)°, β = 78.631(8)°, γ = 66.622(7)°, and Z = 2. The general configuration of Na3LuB8O15 can be characterized as a network structure created by infrequent multiboron anion chain skeletons [B8O17] and [LuO7] polyhedra shared by oxygen atoms, where Na ions are filled in the pores to balance charges. According to a UV–vis-NIR spectrum investigation, the chemical has a short ultraviolet cutoff edge (185 nm). Thermal analysis reveals incongruent melting compound properties. In addition, a first-principles calculation was conducted to delve deeper into the correlation between the performance and the structure.
研究领域:
材料科学
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无机化学
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晶体学
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光学材料
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固态化学
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FOOD RESEARCH INTERNATIONAL
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2026
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IF 8
Xuejing Liu,Zhaojun Zheng,Yuanfa Liu
A novel method for determining α, β-unsaturated aldehydes (α, β-UAs) in edible oils was proposed, utilizing 2,4-dimethylpyrrole (2,4-DMP) derivatization followed by UV–vis analysis. The optimal detection wavelengths were identified as 580 nm for α, β-monounsaturated aldehydes (α, β-MUAs) and 680 nm for α, β-diunsaturated aldehydes (α, β-DUAs). The reaction mechanism was confirmed by Fukui function and hydrogen nuclear magnetic resonance ( 1 H NMR) analysis, demonstrating formation of enamine as the final product. Derivatization conditions were optimized for rapid and reproducible results. The proposed method demonstrated excellent sensitivity, with limits of detection (LOD) and quantification (LOQ) for α, β-MUAs at 0.0038 μmol/mL and 0.0117 μmol/mL, and for α, β-DUAs at 0.0043 μmol/mL and 0.0129 μmol/mL, respectively. Compared to the p-anisidine value ( p-AV ) and high-performance liquid chromatography (HPLC) based methods, the proposed method showed several advantages in shorter derivatization time, simplified operation, high throughput potential and lower toxicity. This method provides an efficient tool for α, β-UAs detection, which is crucial for ensuring oil quality and safety.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 1
·121114
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IF 7.2
Qing Wang,Lin Deng,Changbo Zhang,Rajendra Prasad Singh,Gongde Wu
Para-nitrophenol (PNP), a highly toxic compound widely detected in water bodies, was investigated as the target contaminant during the UV/chlor(am)ine/Fe(III) processes to evaluate its degradation kinetics model, and disinfection byproducts (DBPs) formation and pathways. The incorporation of Fe(III) introduced a oxidation-reduction cycle of Fe(II) and Fe(III), which can generate additional hydroxyl radicals, reactive chlorine species, and reactive nitrogen species, thereby accelerating PNP degradation by 21.85 % in the UV/chlorine system and 31.08 % in the UV/chloramine system. PNP degradation followed pseudo-first-order kinetics, with observed rate constants ( k obs ) calculated as 0.0938 and 0.0604 min −1 , in the UV/chlorine/Fe(III) and UV/chloramine/Fe(III) systems, respectively. Radical quenching experiments confirmed the dominant reactive species in each system, supporting the mechanistic interpretation. In the UV/chlorine/Fe(III) system, DBP yields ranked as follows: Halonitromethanes (HNMs) > trihalomethanes (THMs) > haloacetamides (HAcAms) > haloacetonitriles (HANs), while the order was HNMs > THMs > HANs > HAcAms, in the UV/chloramine/Fe(III) system. Factors influencing DBP formation, including Fe(III) dosage, initial pH, and chlor(am)ine dosage, were systematically investigated. The cytotoxicity index (CTI) contributions of each DBP in the UV/chlor(am)ine/Fe(III) systems were ranked as follows: HNMs > HANs > THMs > HAcAms. Based on detected transformation products (TPs) and radical contribution analysis, plausible pathways for PNP transformation and DBPs formation were proposed. These findings provide valuable insights into PNP degradation behavior and the mechanisms of DBPs formation in the UV/chlor(am)ine/Fe(III) systems, supporting their future practical applications.
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Surfaces and Interfaces
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2026
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IF 6
Yuanyuan Xiang,Qinyu Gu,Shuqi Zhao,Jia Luo,Xu Liu,Haiyang Zhang,Qingqiang Meng,Bowen Cong
A smart material with antibacterial adhesion and controlled drug release. • The smart material can avoid secondary pollution. • The smart material can prevent premature release. Smart drug delivery systems have attracted broad attention in biomedicine and related fields. However, existing drug delivery systems face critical issues including premature drug release and easy bacterial adhesion on the surface leading to secondary contamination. In this study, we designed a smart composite material (SSTP) that integrates resistance to bacterial adhesion with controlled drug release. Porous polylactic acid (PPLA) was used as the drug carrier, and superhydrophobic TiO₂ (S-TiO₂) was spray-deposited onto the PPLA surface to fabricate SSTP, which exhibited a UV-triggered transition from a superhydrophobic state to a superhydrophilic state. Initially, SSTP is in a “closed” anti-contamination state characterized by superhydrophobicity and low adhesion, exhibiting a contact angle (CA) of approximately 152 ± 2° and a roll-off angle (RA) of approximately 9 ± 2° This state effectively prevents bacterial contamination and premature drug release. Upon UV irradiation, SSTP transitions from the superhydrophobic “closed” state to a superhydrophilic “open” state, thereby facilitating drug release. Furthermore, SSTP exhibits good biocompatibility, indicating its potential for biomedical applications. The SSTP designed and fabricated in this study offers new insights into the design of novel smart antibacterial materials. Download: Download high-res image (231KB) Download: Download full-size image A smart material capable of resisting bacterial contamination and enabling controlled drug release was prepared. The material initially exists in a superhydrophobic and low-adhesion state, effectively preventing bacterial contamination. Upon ultraviolet irradiation, it undergoes a transition from a superhydrophobic to a superhydrophilic state, enabling controllable drug release. The fabrication of this material mitigates secondary bacterial contamination and premature release of the drug.
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JOURNAL OF THE INDIAN CHEMICAL SOCIETY
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2026
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IF 3.4
Yun Cao,Xiaoyu Zhang,Xiaofeng Wang,Hongling Diao,Weijian Chen,Mingjing Guan,Yefang Gao,Gang Tang,Shun Zhou
1. A functional core-shell microcapsule system was constructed via ultraviolet (UV)-curable microfluidic technology. 2. The microcapsule preparation process was optimized with a specific focus on three key factors to achieve size-controllable solid microcapsules. 3. The TGA test of microcapsulated essential oils confirming high loading efficiency of 72.3% for microfluidic technology. 4. Py-GC-MS test confirmed lower toxicity of ETPTA, whicht can be used as an ideal shell material for the fabrication of core-shell structured microcapsules in tobacco industry. In this work, a functional core-shell microcapsule system was constructed via ultraviolet (UV)-curable microfluidic technology. To achieve size-controllable solid microcapsules, the microcapsule preparation process was optimized with a specific focus on three key factors that regulate microcapsule size (D capsule ): shell material flow rate (Q shell ), core material flow rate (Q core ), and driving fluid flow rate (Q drive ). Through the optimization process, the optimal preparation conditions were determined as follows: Q shell of 70 mL/h, Q core of 30 mL/h and Q drive of 1320 mL/h. Under these optimized parameters, core-shell structured microcapsules with uniform size (approximately 600 μm) and intact morphology were successfully fabricated. On this basis, the thermal stability of the shell material ETPTA and the microcapsulated essential oils were investigated by TGA test. ETPTA exhibited the residual rate of only 3%, indicating that most of ETPTA was converted into gaseous pyrolysis products. The TGA test of microcapsulated essential oils confirming high loading efficiency of 72.3% for microfluidic technology. Pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) test of the ETPTA showed lower toxicity of ETPTA, indicating it can be used as an ideal shell material for the fabrication of core-shell structured microcapsules in tobacco industry. Download: Download high-res image (171KB) Download: Download full-size image
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CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Wei Tan,Jieyun Zhao,Lei Tan,Yin Tian,Guixiang Song,Ying Chang,Lu Bai,Ping Li,Yuanlin Ren,Xiaohui Liu
The inherent flammability and insufficient ultraviolet (UV) protection of regenerated cellulose fibers limit their functional applications. Inspired by the natural polyphenol–polysaccharide synergy in plants, a lignin-derived boron-containing phenolic network (Lig-BPF) was incorporated into a cellulose spinning system and then coordinated with Zn 2+ to fabricate Cellulose/Lig-BPF@Zn fibers. Compared with pristine cellulose fibers, Cellulose/Lig-BPF@Zn increased the char residue at 800 °C from 13.72% to 30.35% under N 2 atmosphere, and reduced the peak heat release rate by 43.03%. The limiting oxygen index increased from 17.2% to 31.5%, and still remained 29.1% after 20 laundering cycles. TG-FTIR analysis showed an 88.56% reduction in total volatile release intensity, while Raman analysis confirmed an increased degree of graphitization, as evidenced by a decreased I D /I G value from 3.59 to 2.55. Furthermore, the UV protection factor increased from 11.42 to 128.82, and remained 109.74 after durability testing. Mechanistic analyses demonstrate that lignin-derived aromatic domains, boron-containing structures and Zn-coordinated species regulate cellulose pyrolysis and promote the char formation. This work develops a sustainable strategy for converting natural lignin into a bio-based flame retardant that simultaneously improves the flame retardancy and UV protection performance of regenerated cellulose fibers, providing a phosphorus-free and eco-friendly approach for preparing multifunctional carbohydrate-based fibers.
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PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.9
Jiaying Liu,Guoqing Xiao,Mingtan Wang,Chunyan Chen,Chunlin Chen,Shuyu Fu
Waterborne epoxy (EP) coatings are widely used for fire protection of steel structures due to their environmental friendliness and cost-effectiveness. Although significant progress has been made in the development of fire-retardant coatings, a key challenge remains regarding their long-term stability under harsh environments with strong ultraviolet (UV) radiation. To address this challenge, this study employed layered α-ZrP nanosheets as a substrate, polyethylenimine (PEI) as a bridging agent and tannic acid (TA) as a functional modifier, to prepare TA/PEI@ZrP hybrids via a Schiff base reaction. These hybrids were then incorporated into an EP intumescent fire-retardant coating to fabricate a TA/PEI@ZrP/EP composite coating. Accelerated aging tests demonstrated that the incorporation of TA/PEI@ZrP improved gloss retention and reduced the degradation of EP structures. Fire performance tests demonstrated that the composite coating exhibits excellent fire resistance. The Bronsted acid sites (BAS) of ZrP catalyzed the formation of a dense and high-strength intumescent char layer, which reduced the backside temperature of the steel substrate from 236.8 °C to 184.7 °C. The char expansion height and expansion ratio increased from 5.73 mm and 5.18 to 23.1 mm and 17.63, respectively. These results indicate that the composite coating exhibits both enhanced fire resistance and improved UV durability, leading to an overall improvement in protective performance. This work provides new insights into the design of multifunctional composite coatings with long-term stability and high-efficiency UV resistance.
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危险品化学品经营许可证（带存储）