COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Yuanyuan Lu,Guangli Chen,Yuxuan Zhang,Wenjun Lv,Kangwei Zhang,Zaosheng Lv,Yanfen Huang
Superhydrophobic surfaces are important in research and technology because of their extraordinary qualities, such as water repellency, self-cleaning ability, and anti-biofouling performance. However, their production frequently relies on complicated and dangerous chemicals, which are incompatible with sustainable development objectives. We expected that integrating bio-derived chitosan (CS) with Zinc Oxide (ZnO) and altering it with low-surface-energy polymers-ODA/PDMS-OH (Octadecylamine/Hydroxy-Terminated Polydimethylsiloxane) would result in an environmentally friendly, resilient, and multifunctional superhydrophobic coating. This technique attempted to integrate micro/nano-structuring with chemical alteration of cotton fabric. The results show that the modified fabric has exceptional superhydrophobicity, with a water contact angle (WCA) of 159.8° and a sliding angle (SA) of 6.9°. The superhydrophobic surface has exceptional mechanical resilience, retaining hydrophobicity after tape peeling, sandpaper abrasion, and washing cycles. Furthermore, the coating exhibits considerable rebound recovery following plasma etching. Although air permeability was slightly reduced, the treated fabric met the comfort requirements for wearable applications while demonstrating superior ultraviolet (UV) resistance, antibacterial activity, self-cleaning performance, and oil-water separation capability, indicating promising practical utility. As a result, this study presents a long-lasting, fluorine-free, and scalable technique for producing multifunctional fabrics that bridges the gap between high performance and environmental sustainability.
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高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2025
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IF 7.8
Zhuowen Yang,Ke Feng
The Fe 0 /H 2 O 2 system, which is capable of removing organic matter from wastewater, suffers from limited efficiency because of slow Fe 2+ release and restricted Fe 2+ /Fe 3+ cycling. This study investigated the performance and mechanism of a UV-enhanced Fe 0 /H 2 O 2 system for the removal of organics in semiaerobic aged refuse biofilter (SAARB) effluent from landfill leachate, with HO • identified as the primary reactive oxygen species. UV not only initiates a homogeneous Fenton reaction through direct photolysis of H 2 O 2 and promotes Fe 2+ release from Fe 0 but also accelerates surface corrosion of Fe 0 to form more iron oxides, which react with H 2 O 2 in a heterogeneous Fenton reaction, thereby generating HO • at a faster rate. HO • preferentially reacts with organics containing chromophores or auxochromes, attacks humus with abundant conjugated structures, converts them into smaller organic molecules, and even achieves mineralization. Increasing the Fenton reagent ratio and dosage enhances the removal performance of the UV/Fe 0 /H 2 O 2 system, with optimal organic removal observed under acidic conditions. Ultimately, optimal conditions of the UV power (10 W), Fe 0 (2 mM) and H 2 O 2 (12 mM) dosages at pH 3.0 achieved 84.48% CN, 90.06% UV 254 , and 62.84% TOC removal. This study provides a feasible solution for achieving discharge standards for landfill leachate.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Xiaochen Qi,Fuli Li,Chih-Huang Weng,Kai Liu,Renchuan Fu,Na Liu,Longzhen Ding
2-(2-Hydroxy-5-methylphenyl) benzotriazole (UV-P), a high-production and structurally complex benzotriazole derivative, has an uncertain degradation pathway and transformation dynamics in aquatic environments, raising concerns about its potential toxicological risks to human health and the ecological systems. This study investigated the oxidative degradation of UV-P by ferrate(VI) in aqueous solution under controlled experimental conditions. The results demonstrated that ferrate(VI) efficiently degraded UV-P under alkaline conditions, achieving a maximum removal efficiency of 91.76 % at pH 8.0. Furthermore, the influence of various environmental factors, including pH, oxidant dosages, inorganic ions (HCO 3 − , Cl − , Br − , NO 3 − , Ca 2+ , K + , Mg 2+ , and NH 4 + ), and humic acid, on the ferrate(VI)-mediated oxidative degradation of UV-P were systematically examined. The results indicated that although inorganic ions and humic acid partially inhibited the degradation process, a satisfactory degradation efficiency was still attained. The intermediate identification results indicated that the ferrate(VI)-mediated oxidative degradation of UV-P primarily proceeded via bond cleavage, oxygen atom transfer, and radical coupling reactions, resulting in the formation of cleavage products, hydroxylated derivatives, and polymeric compounds. The oxidative degradation pathway of UV-P and key reactive sites targeted in the ferrate(VI) degradation system were examined through quantum chemical methods, including analyses of atomic charge distribution and frontier electron density. The toxicity assessment highlighted the need to focus on the chronic toxicity of specific aminated degradation products. This study is essential for elucidating the degradation mechanism of the benzotriazole compound UV-P in aquatic environments and comprehensively assessing its potential biotoxicity.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Eslam Ibrahim El-Aswar,Yu Lei,Zhimin Qiang,Yanyan Huang,Gholamreza Moussavi,Mengkai Li
The vacuum-ultraviolet/ultraviolet/air micro-nano bubble (i.e., VUV/UV/MNB) process is a promising solution for wastewater treatment with high-efficiency and chemical-free advantages. However, the influence of surfactants, a common component wide-spread in wastewater on VUV/UV/MNB efficiency remains unknown. This study investigated the overlooked role of surfactants in enhancing the degradation of emerging contaminants in the VUV/UV/MNB process, using carbamazepine (CBZ) as a model contaminant. The addition of surfactants increased the CBZ degradation rate by at least 62 %, compared to 50 % without them. The anionic surfactant, sodium dodecylbenzene sulfate (SDBS), exhibited the highest promoting effect, while the cationic surfactant, dodecyl trimethyl ammonium bromide, exhibited the least. Notably, the enhancement plateaued at an optimal [SDBS] 0 , beyond which competition between HO • and SDBS hindered further degradation. The 75.8 % degradation enhancement with SDBS, compared to 50.8 % for a non-surfactant, was attributed to its amphiphilicity and adsorption capability, which increased CBZ interfacial concentration. Furthermore, SDBS showed enhanced MNBs stabilization, evidenced by a smaller reduction in CBZ degradation (8.6 %) compared to non-surfactant (23.9 %) in the intermittent bubbling mode. Key surfactant properties, including the surface activity, diffusion coefficient, and saturated equilibrium surface excess, were found to govern these reaction mechanisms. Besides, the addition of SDBS increased the relative contribution of interfacial reactions from an average of 55.9 % to 70.1 %, representing a 14.2 % enhancement in interfacial reaction dominance compared with the SDBS-free system. This study demonstrates the potential of VUV/UV/MNB process for effectively treating wastewaters enriched with surfactants.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Bingjie Zhang,Xiaoye Bi,Zexiong Li,Dong Xue,Tianyang Li,Baoping Wang,Chencheng lv,Yunpeng Wang,Tao Zhao
In this study, an innovative multifunctional coating for cotton fabrics via a straightforward UV-initiated polymerization method has been developed using a non-aqueous solvent. Synthesized from N-bromobutane, 1-vinylimidazole, potassium hexafluorophosphate (KPF₆), and sodium tetrafluoroborate (NaBF₄), the poly（ionic liquid） (PIL) imparts exceptional flame retardancy and hydrophobic properties to cotton fabrics. This PIL coating uniformly adheres to the cotton surface, significantly enhancing flame retardancy and durability. Notably, the PIL-PF₆-treated cotton achieved a high limiting oxygen index (LOI) of 39.5% and displayed a damaged length of approximately 94 mm in vertical flammability tests (VFT). Even after 20 washing cycles, the PIL-PF₆-treated fabric maintained a damaged length below 100 mm, highlighting its long-lasting effectiveness. This work offers a practical and effective strategy to enhance the safety and longevity of cotton fabrics, presenting promising applications in the field of flame-retardant textiles.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Shengwei Cheng,Jinhui Lin,Jundong Si,Jie Yin,Longgui Zhang,Xiangchen Fang,Yan Zhang
Branched poly(butylene succinate- co -terephthalate) (PBST)-based composites, a kind of bioplastic incorporated with lignin and other auxiliary agents with excellent mechanical properties, were obtained through melting processing in this work. Wherein, the epoxy group in multifunctional styrene-acrylic-epoxy-based random oligomer chain extender Joncryl ADR-4468 (ADR) could react in situ with hydroxyl in lignin and branched PBST. Additionally, Zn 2+ from zinc stearate (ZnSt) could form metal coordination bonds with the oxygen-containing functional groups of lignin and branched PBST. The in situ reaction and metal coordination bonds could improve the compatibility of the two. The tensile strength and the elongation at break could reach 18.6 MPa and 1224.7%, respectively, because of the increased compatibility. Moreover, the composites also exhibited hydrophobicity, excellent UV resistance, and visible light barrier properties. It is expected to have broad application prospects in the fields of agricultural mulch film and packaging.
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高影响因子
APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Jinlong Cui,Chengui Zhang,Yalong Li,Yang Liu,Weijun Jiang,Yuhui Wen,Zhenxi Wang,Zhonghua Yu,Xiangrong Ren,Zhifu Zhang
The selective hydrogenation of cinnamaldehyde (CAL) is a key reaction for producing valuable intermediates in pharmaceuticals, fragrances, and fine chemicals. However, achieving high selectivity toward the C=O bond reduction of CAL under mild conditions remains challenging. In this study, an efficient and sustainable photocatalytic strategy for the selective transfer hydrogenation of cinnamaldehyde to cinnamyl alcohol under mild conditions was reported. The low-loading 0.5 wt% Au/TiO 2 -CeO 2 and 0.5 wt% Pt/TiO 2 -CeO 2 catalysts were prepared by sol–gel and ultraviolet deposition method. Experimental results show that heterojunction is formed by doping CeO 2 with TiO 2 . The light absorption of materials is redshifted, and the separation of photogenerated electron-hole pairs is enhanced, thereby reducing the load usage of precious metal. The 0.5 wt% Au/TiO 2 -CeO 2 catalyst exhibits optimal performance under visible light irradiation, while the 0.5 wt% Pt/TiO 2 -CeO 2 catalyst exhibits excellent activity under ultraviolet light irradiation. The conversion efficiency in 0.5 wt% Au/TiO 2 -CeO 2 catalytic system under visible light is 97.23 %, and the selectivity can reach 96.91 %. Recycling tests verified the structural stability and reusability of the prepared catalysts. The formation of heterojunction structures can effectively reduce the load of precious metal while maintaining high conversion and selectivity. These findings provide a new pathway for achieving highly selective CAL hydrogenation under mild conditions.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Shijie Yao,Yaru Hu,Jianfeng Ye,Jianhao Xie,Xuetao Zhao,Lingli Liu,Shuguang Lyu,Kuangfei Lin,Changzheng Cui
The super-resistant bacteria that produce the New Delhi metallo-β-lactamase 1 (NDM-1) enzyme are becoming a conceivably major worldwide clinical issue with serious consequences. Studying the disinfection and mechanism of super-resistant bacteria and their antibiotic resistance genes (ARGs) is crucial for controlling their spread in the water environment. In this study, the disinfection of the super-resistant bacterium Acinetobacter sp. CS-2 and its transferable ARGs (plasmid-encoded bla NDM-1 and bla OXA-58 ) by ultraviolet radiation (UV), peroxymonosulfate (PMS), and ultraviolet/peroxymonosulfate (UV/PMS) exposure were investigated. UV/PMS could completely inactivate CS-2 and control the photoreactivation risk, while bacteria that underwent UV and PMS treatment had survival ratios of 0.22% and 0.28%, respectively. The removal efficiencies of bla NDM-1 and bla OXA-58 ranged from 3.64 to 4.05 log, and the advantage of UV/PMS treatment on ARGs damage was further identified by gel electrophoresis analysis. The removal efficiency of bla NDM-1 was lower than that of bla OXA-58 , which was attributed to the low number of adjacent 5′-TT-3′ harbored by bla NDM-1 . The removal rate constants of the ARGs by UV treatment were significantly correlated with the number of adjacent base pairs (e.g., 5′-TT-3′, 5′-CT-3′, 5′-TC-3′ and 5′-CC-3′) and length, with R -values ranging from 0.9044 to 0.9512. Singlet oxygen ( 1 O 2 ) played a vital role in the reduction of bla NDM-1 and bla OXA-58 in the UV/PMS treatment. UV/PMS showed high removal efficiency under natural pH conditions and in the presence of various aqueous ions (e.g., Cl − , SO 4 2− and HCO 3 − ). Overall, this study provides new understandings and theoretical support for the risk control of super-resistant bacteria and plasmid-encoded ARGs.
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Materials Research Express
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2020
·Vol. 6
·期 12
·125355
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IF 1.929
Xiangxin Xu,Huiping Liu,Songmei Duan,Xuhui Liu,Kai Zhang,Jianqiu Tu
The pumpkin seeds protein (PSP) films have good gas barrier properties and elongation at break, but their inferior tensile strength and high moisture adsorption needed to be overcome. There are few reports about modification of PSP films so far. This study was to investigate the effects of different ratios (0:5, 1:4, 1.5:3.5, 2:3, 2.5:2.5 and 5:0) of pea starch (PS)/ pumpkin seeds protein (PSP) on the morphology, mechanical properties, water vapor permeability (WVP), optical properties, hydrophobicity, and oil resistance of blend films. According to the results, the scanning electron micrographs of surface and cross-sections indicated the good biocompatibility between PS and PSP. The tensile strength was enhanced from 5.02 MPa to 16.41 MPa with the incorporation of PS at 40% level, but the elongation at break was decreased meanwhile. The addition of PS enhanced the hydrophobicity and reduced the swelling degree of films. And then, the composite films incorporated with PS were more transparent at visible region. The oil soaking had little effect on the mechanical properties of composite films with low starch content. The addition of starch led to the closer interaction between water molecules and macromolecules in film-forming matrix. In addition, the PS/PSP composite films showed inferior barrier properties of water vapor and ultraviolet light compared with pure PSP films. Based on the above various factors, the composite film composed of PS and PSP in a suitable proportion has the potential to package oily foods.
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高影响因子
Canadian Journal of Chemistry
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2020
·Vol. 98
·期 5
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IF 1.171
Keke Ning,Guoqiang Xiang,Cuicui Wang,Jingxing Wang,Xiaohong Qiao,Ruofei Zhang,Xiuming Jiang,Lijun He,Wenjie Zhao
In this work, poly(sodium 4-styrenesulfonate) (PSS) modified molybdenum disulfide quantum dots (MoS2-PSS QDs) were synthesized via a simple hydrothermal method using l-cysteine and anhydrous sodium molybdate as precursors and PSS as a modification reagent, and a selective and sensitive fluorescent sensing method for the determination of p-nitrophenol (p-NP) based on their UV emission was developed. The obtained MoS2-PSS QDs have an obvious UV emission peak (390 nm) with quantum yield of 5.13%. The strong absorption peak of p-NP at 400 nm has large spectral overlap with the UV emission peak (390 nm) of MoS2-PSS QDs. Because of this p-NP absorption, the fluorescence of MoS2-PSS QDs at 390 nm is quenched with the introduction of p-NP via the inner filter effect (IFE) and the decreased fluorescence intensity was linearly proportional to the p-NP concentration in the range of 1–20 μmol/L, leading to a detection limit of 0.13 μmol/L for p-NP. The MoS2 QDs-based fluorescent probe for p-NP is sensitive and selective and was successfully applied in the determination of p-NP in the pond water samples with satisfactory results.
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高影响因子
CRYSTAL GROWTH & DESIGN
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2024
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IF 3.2
Pengju Xia,Wanyuan Li,Kaiting Wu,Yifeng Lei,Wubin Dai
In the process of studying newfangled phosphor-converted white-light-emitting diodes (pc-wLEDs), some basic and important objectives of phosphor, i.e., high chemical/thermal stability, color rendering index (CRI), and low correlated color temperature (CCT), should pass muster simultaneously. Herein, for the first time, a series of photoluminescence (PL) color-tunable single-phase Ca3Y(GaO)3(BO3)4: Dy3+/Sm3+/La3+ (CYGB: Dy/Sm/La) phosphors with good dispersivity, crystallinity, and size uniformity have been designed and synthesized via a facile solid-state reaction method. Structurally, based on XRD and Rietveld refinements, the tendentious occupations of Dy/Sm/La on the Y3+ site with a 9-coordinated number (CN) over other cationic sites are in line with the facts that the ionic radius and charge difference of Dy/Sm/La are much closer to Y3+ in 9-CN than Y3+ in 7-CN and Ca2+ in both 9- and 7-CN. Spectrally, thanks to the “cool” white PL from 4f–4f transitions of Dy and red-emitting from Sm, polychromatic PL including “warm” white light with high efficiency could be realized in CYGB: Dy/Sm via the regulation of doping content and energy transfer (ET). Intriguingly, the “abnormal” phenomena of zero-thermal-quenching in the range from room temperature (RT) to 573 K were observed, probably owing to the synergistic effects of electron–phonon coupling, ET, and structural defects. Moreover, by tridoping La3+ to legitimately adjust the site environments, the PL of both Dy/Sm could be further tuned because they all include hypersensitive transitions that are closely related to the crystal field environment. Finally, as a proof-of-concept fabrication, the pc-wLED assembled by a combination of the composition-optimized CYGB: Dy/Sm/La and an n-UV LED chip via remote “capping” packaging shows attractive performances, indicating its potential as an efficient phosphor for n-UV wLEDs.
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高影响因子
WATER RESEARCH
·
2019
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IF 7.913
Liangchen Long,Yinan Bu,Baiyang Chen,Rehan Sadiq
To discover an applicable technology for urea abatement from swimming pool water (SPW), this study compared the performances of seven ultraviolet (UV)-based technologies on urea removal, including UV alone, UV coupled with hydrogen peroxide (UV/H 2 O 2 ), sulfite (UV/Na 2 SO 3 ), potassium persulfate (UV/K 2 S 2 O 8 ), a combination of UV and vacuum UV (UV/VUV), and UV/VUV in tandem with either H 2 O 2 (VUV/H 2 O 2 ) or potassium persulfate (VUV/K 2 S 2 O 8 ). Among them, UV and UV/Na 2 SO 3 showed little removal ability, and UV/H 2 O 2 removed only 12.8% of urea within 3-h experiments, while UV/VUV degraded 71.7% of urea without introducing substantial total dissolved solids (TDS). Therefore, UV/VUV was considered as a promising technology for further exploration. In comparison, although UV/K 2 S 2 O 8 exhibited higher urea removal than UV/VUV, it caused dramatic increases of TDS, which made the regulatory threshold for the TDS increment difficult to maintain. Within UV/VUV studies, some common components in SPW (e.g., cyanuric acid , humic acid , nitrate, and bicarbonate) inhibited the removal process, whereas chloride and sulfate facilitated it, while free chlorine at doses ≤ 3 mg-Cl 2 /L and pH levels from 6.8 to 8.0 imposed little impact on urea degradation. Overall, UV/VUV degraded 40.0% and 22.2% of urea from tap water and SPW, respectively; both were lower than the efficiency observed in ultrapure water. As for reaction byproducts, urea phototransformation via UV/VUV yielded nitrate and ammonia as the key products with the mass balance of nitrogen element being met. However, the contents of organic carbon decreased at a rate slightly lower than urea degradation, suggesting that urea was mostly mineralized and slightly converted to unknown organic compounds. The results hence demonstrate that UV/VUV is an effective alternative for urea removal from SPW.
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高影响因子
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