Surfaces and Interfaces
·
2025
·
IF 6.3
Guolin Zheng,Wentao He,Haonan Cheng,Xinjun Bao,Anlin Zhang,Kun Wang,Bin He,Hengshu Zhou
To our knowledge, the protective coating on textiles has attracted tremendous interest since the outbreak of COVID-19, prompting significant advancements in protective textiles. Herein, the laccase-platinum nanozyme (Lac-Pt) was selected for the first time to catalyze the self-polymerization of epicatechin, in which the epicatechin polymer (PEC) was coated on cotton fabric by in-situ deposition, labeled as CF@PEC. The PEC coating on cotton fabric was confirmed through scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and energy-dispersive X-ray spectroscopy (EDX). Moreover, the self-polymerization mechanism of EC was demonstrated by UV-visible spectra, hydrogen proton nuclear magnetic resonance ( 1 H NMR), X-ray photoelectron spectroscopy (XPS), and FTIR. The laccase and platinum nanozyme exhibited the synergies during catalyzing the oxidation of EC. CF@PEC exhibits good photothermal effect (photothermal temperature of 60.3°C), UV protection ability (UPF of 95.6), and antioxidant properties (94.4 ± 0.3%). In addition, CF@PEC can maintain UV protection ability after undergoing 20 washing cycles. Notably, the Lac-Pt used to create the multifunctional coating not only preserves the strength of the cotton fabric, but also reduces wastewater production. Briefly, this work renders a promising strategy to prepare the protective coating, which may open a sustainable and efficient avenue to room-temperature thermal therapy and can provide heat to the body in cold environments.
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SCIENCE OF THE TOTAL ENVIRONMENT
·
2021
·
IF 7.963
Siyao Cheng,Xihao Pan,Cheng Zhang,Xiangpeng Lin,Qiu Zhuang,Yingzhi Jiao,Wei Dong,Xiaoliang Qi
Fenton-like catalysts represent a family of promising materials to degrade micropollutants from contaminated water . However, the practical applications of Fenton-like catalysts are mainly limited by low catalytic degradation efficiency and stability. Herein, for the first time, rapid fabrication of Ag-decorated Fe 3 O 4 /polydopamine ( FPA ) microspheres was achieved via the help of UV irradiation, and the designed FPA microspheres were employed as Fenton-like catalysts to degrade micropollutants. Results showed that UV irradiation could activate the generation of the polydopamine shell and accelerate the Ag deposition, which played a crucial role in the rapid synthesis of highly active and stable FPA catalysts. Relative to reported catalysts, these FPA microspheres exhibited outstanding catalytic degradation performance, achieving 94.38% removal of tetracycline within 60 min. This work will provide a convenient strategy in the sustainable and efficient purification of wastewater to improve the quality of human life.
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PubMed
高影响因子
WATER RESEARCH
·
2019
·
IF 7.913
Yuan Yuan,Wei Zhao,Zicheng Liu,Chen Ling,Changqing Zhu,Fuqiang Liu,Aimin Li
The efficient recovery of heavy metals from complexed wastewater is an essential but challenging task. In this study, a novel low-Fe(III) driven UV/Air process (LFUA) was developed to break the strong complexation between ethylenediamine tetracetic acid (EDTA) and heavy metal ions (HMIs) and enable the enhanced recovery of HMIs via chelating resin adsorption (CRA). The inside mechanism of the LFUA process includes: 1) displacement of HMIs from HMI-EDTA complexes by Fe(III); 2) direct photolysis of Fe(III)-EDTA through a ligand-to-metal charge transition reaction (LMCT) and indirect photolysis of EDTA by HO 2 ·/O 2 · - . The iron dosage was orders of magnitude lower than that previously reported, due to the Fe(II)/Fe(III) redox cycle in the LFUA process. Fe(II) formed during the LMCT reaction of Fe(III)-EDTA was oxidized back to Fe(III) by O 2 and HO 2 ·, and the reformed Fe(III) was then recombined with EDTA to sustains the LMCT reaction. EDTA was completely removed in 20 min at a molar ratio of Fe(III)/EDTA = 0.05. In addition, following the LFUA process, the adsorption amounts of various HMIs onto D463 resin were at least two orders of magnitude higher than those reported using the direct adsorption process. Employing the integrated technique of LFUA + CRA enabled the efficient removal of up to 64.5 mg/L of Cu(II) from inlet wastewater, and residual Cu(II) was below 0.5 mg/L. The results of desorption experiments showed that over 90% of Cu(II) was recovered, and the desorption solution had a Cu concentration of 2.1 g/L and purity of 99%. Furthermore, the economic and practical feasibility of using the combined process of LFUA + CRA was analyzed to substantiate that the technique is highly efficient and clean (produces no harmful sludge). Therefore, it is an appropriate and practical process in removing HMIs-EDTA complexes and recovering HMIs from wastewater.
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PubMed
高影响因子
Frontiers of Materials Science
·
2021
·Vol. 15
·期 3
·406-415
·
IF 2.765
He Xia,Liu Qingchun,Zhou Ying,Chen Zhan,Zhu Chenlu,Jin Wanhui
Wearable gas sensors can improve early warning provision for workers in special worksites and can also be used as flexible electronic platforms. Here, the flexible multifunctional gas sensor was prepared by grafting graphene oxide (GO)-Ag onto cotton fabric after swelling. The maximum bacterial inhibition rate of GO-150/cotton fabric was 95.6% for E. coli and 87.6% for S. aureus , while retaining the original high moisture permeability of cotton fabric. So GO/cotton fabric can resist the multiplication of bacteria. At the same time, GO can greatly improve the UV protection performance of cotton fabric used in garments. With increase of the GO concentration, the UV protection ability of composite fabric is enhanced. Finally, GO-Ag/cotton fabric sensors had stable NH 3 gas-sensitive properties and good washing stability. In conclusion, these cotton fabric sensors with antibacterial properties, UV resistance and highly sensitive gas-sensitive properties have potential applications in wearable early warning devices and textile products.
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Future Medicinal Chemistry
·
2017
·Vol. 9
·期 16
·
IF 3.556
Kan Yang,Biao Gao,Xianjun Ming,Zhipeng Huang,Minghui Wang,Jibin Dong,Jinxin Wang
Aim: ASM, which hydrolyzes sphingomyelin into ceramide, is recognized as a therapeutic target for UV-induced skin damage. Direct inhibitors for this enzyme are rare. Here we synthesized several series of 1,3,6,7-tetrahydroxy-xanthone derivatives as novel ASM inhibitors. Results: Several compounds were more potent than the lead compound, among which 5b was found competitively inhibiting the enzyme and dose-dependently reducing ceramide generation. Furthermore, 5b and 5c showed excellent protective effect to skin keratinocytes against UV. Quantitative structure–activity relationship investigation revealed detail relationships between molecular structure and biological activity. Insight into the binding mode was precisely illuminated by molecule docking. Conclusion: This work would provide fresh ideas and strong supports for further development of ASM inhibitors and drug candidates for skin damage.
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PubMed
高影响因子
MATERIALS LETTERS
·
2025
·
IF 2.7
Ronghua Qiu,Hongsheng Luo,Yiheng Liu,Qingqing Yuan,Shentgzung Chiang,Jentsung Lin,Xiangjun Fu,Yunsong Zhang,Fei Liang
Through a silane-hydride addition reaction, the ultraviolet (UV) absorber 2-[2-hydroxy-5-[2-(methacryloyloxy)ethyl]phenyl]-2H-benzotriazole (BHEM) was introduced into the hydrogenated polysiloxane (PMHS) side chains, resulting in the preparation of a UV-absorber-functionalized siloxane (PM/BH). The effect of the molar ratio of vinyl to Si H in the grafting reaction on the molecular characteristics and rheological behavior of PM/BH was analyzed. PM/BH was then used in the fabrication of polydimethylsiloxane (PDMS) films, successfully producing a PDMS composite film (PD-PM/BH) with both high transparency and excellent UV shielding performance. Further investigation was conducted on how different grafting reaction molar ratios of PM/BH affected the mechanical properties, transparency, and UV shielding performance of the composite films. The results indicated that all composite film samples maintained high transparency and outstanding UV shielding capabilities, with visible light transmittance exceeding 85 %. The PM/BH prepared by grafting at a vinyl-to-Si-H molar ratio of 0.1 imparted the composite film with the best mechanical properties.
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ACS Applied Polymer Materials
·
2025
·
IF 4.7
Hanqi Dong,Xinxin Ping,Yuzhen Zhou,Hui Wang,Xin Zhou,Lupeng Shao,Xiao Xiao,Weixing Li,Chao Wang,Zhe Ling
The development of photothermally functional materials derived from renewable biomass has garnered significant interest in recent years, while the integration of the properties is still challenging. In this study, we present a layer-by-layer assembly strategy for fabricating composite lignin nanoparticle (LNP)/cellulose nanocrystal (CNC) Janus films combined with 3-aminopropyl triethoxysilane (APTES) amidated carboxymethyl cellulose (CMC) as the outer layers. The presence of carbonyl and aromatic rings in lignin contributes to its exceptional UV-light absorption capability, achieving a shielding efficiency exceeding 90% in the UVB region. Moreover, the layered assembly structure enhances the film’s mechanical strength by 81.4% and increases its water contact angle to ∼100°, which was a 35° increase compared to the pristine material, indicating superior hydrophobicity. Notably, satisfactory photothermal conversion capability was achieved for the composite films, which were heated to 32 ± 2 °C under the irradiation of simulated sunlight (100 mW/cm2), while maintaining good thermal stability. Besides, the all-biobased films exhibit excellent biodegradability, making them a promising candidate for applications in fields of food packaging, medical materials, outdoor protection, etc.
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JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Jingyi Wu,Ziting Zhu,Mengqi Bie,Jialei Hou,Siwei Wang,Jing Huang,Fusheng Pan,Zhongyi Jiang
Covalent organic frameworks (COF) with tunable functionality provide opportunities to engineer transport pathways and interfacial interactions in hybrid membranes. Here, we integrate three kinds of charged COF nanosheets with poly(vinyl alcohol) (PVA)-styrene pyridinium salt (SBQ) matrices via spray coating followed by ultraviolet (UV) crosslinking to construct pervaporation membranes for hypersaline desalination. Spray coating enabled homogeneous nanosheet dispersion and enhanced interfacial compatibility, as confirmed by reduced PVA crystallinity (XRD) and optimized free-volume characteristics (PALS). Three charged COF nanosheets, including neutral TpPa, positively charged TpPa-Py, and negatively charged TpPa-SO 3 H, introduced hydrogen-bonding and charge–dipole interactions at the interface, stabilizing the hybrid network and facilitating selective water transport. Among them, the PVA-SBQ-TpPa-SO 3 H membrane exhibited the highest performance, achieving 357.38 kg m −2 h −1 flux with 99.9 % rejection at 50 °C in 3.5 wt% NaCl. Stable operation was maintained in the presence of organic and inorganic foulants. Automated spray–UV processing further enabled A4-sized membranes with 307.12 kg m −2 h −1 flux and 99.9 % rejection, demonstrating practical scalability. This work highlights the interfacial chemistry and membrane processing method in advancing COF-based hybrid membranes.
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MICROCHIMICA ACTA
·
2015
·Vol. 182
·期 15
·2593-2600
·
IF 3.741
Diao Chun-peng,Yang Xiao,Sun Ai-ling,Liu Ren-min
Vortex-assisted liquid-liquid microextraction (VALLME) for the rapid extraction of trace bisphenol S (BPS) in environmental water is presented. In order to simplify the procedure, an in-house fabricated glass dropper with different internal diameters of the two ends is exploited. The solidification-melt step was cut in VALLME by means of the in-house fabricated glass dropper. After extraction with 2-ethylhexanol, BPS was detected by high performance liquid chromatography (HPLC) with ultraviolet (UV) detection. Factors such as type and volume of extraction solvent, extraction time, sample pH and ionic strength were evaluated. Under optimized conditions, the linearity range varied from 0.10 to 50 μg L −1 with a squared regression coefficient r 2 of 0.9995. The relative standard deviation (RSD) is 2.3 % ( n = 7). The limit of detection (LOD) and limit of quantification (LOQ) are 0.02 and 0.06 μg L −1 , respectively. The presented method was employed for the determination of BPS in real water samples. The relative recoveries are 81.8–87.3 % for the two real water samples. The method is shown to be economical, fast and can be routinely performed.
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HIGH PERFORMANCE POLYMERS
·
2024
·
IF 1.8
Weihua Zhong,Jinwang Bai,Yunjun Luo,Dianbo Zhang,Chen Liang,Xiangdong Chen
Poly(p-phenylene-2,6-benzobisoxazole) (PBO) fiber is currently one of the best-performing organic fibers; however, its low UV aging resistance limits its use. To improve the UV aging performance of PBO fibers, a novel PBO-Fe-PDA fiber was created by depositing a biomimetic structure of polydopamine (PDA) on the surface of PBO fibers with the transition metal ion Fe3+ as the active center. The surface morphology and elemental composition of PBO-Fe-PDA fibers were investigated. It was revealed that Fe3+ formed a coordination bond structure with the oxazole ring, and PDA was successfully loaded onto the surface of PBO-Fe fibers. After UV aging, the crystallinity and crystallographic orientation of PBO fibers significantly decrease, microcrystals inside the fibers slip, and the size of microvoids in the fibers rises. As a result, the strength of PBO fibers was significantly decreased after UV aging. The anti-UV aging capacity of PBO-Fe-PDA fibers, on the other hand, has been enhanced, as evidenced by a slight drop in crystallinity and crystallographic orientation and a significant decrease in the size growth of internal microvoids in the fibers after UV aging. The tensile strength retention of PBO-Fe-PDA fibers after UV aging increased by 93.13% when compared to PBO fibers without altering the fibers’ initial strength. The testing results show that this surface modification method is simple to employ and extends the service life of PBO fibers significantly.
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高影响因子
Journal of Nanomaterials
·
2022
·
IF 3.791
Zhenming Qi,Wenhui Yu,Jialong Tian,Kuang Wang,Jiayi Chen,Dawei Gao,Yu Ren,Chunxia Wang
Amino functionalized nanocarbon black (CB/KH550) was prepared in reaction between KH550 and nanocarbon black (CB). 2-(4-(4,6-dichloro-1,3,5-triazin-2-ylamino)phenylsulfonyl)ethyl) sodium sulfate (SDTES) was synthesized and characterized. Self-dispersive and reactive nanocarbon black (CB/KH550/SDTES) was prepared by nucleophile substitution reaction and characterized by FTIR, TEM, zeta potential, and TG analysis. Cotton fabric was dyed with CB/KH550/SDTES by dip-dyeing method and was observed by SEM. Moreover, color depth, static resistance, UV protection, tensile property, and rub fastness of cotton fabric were measured and analyzed. Results showed that CB/KH550/SDTES demonstrated excellent dispersion stability. The dyed cotton fabric possessed adorable antiultraviolet and antistatic properties. The preparation mechanism of the cotton fabric dyed with CB/KH550/SDTES was proposed.
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CHEMICAL ENGINEERING JOURNAL
·
2016
·
IF 5.31
Junyun Huang,Xiaofang Li,Mengjie Ma,Dinglong Li
Di-(2-ethylhexyl) phthalate (DEHP) is an annexing agent that is widely used in the plastics industry. Due to the endocrine-disrupting effect of this compound, the development of an efficient method for degrading DEHP is important. In this study, DEHP was degraded by UV-activated peroxymonosulfate (PMS) oxidation. The influences of various parameters, including PMS dose, temperature, pH, metal ions, common anions and humic acid (HA), were examined. An increase in PMS dose and the presence of metal ions and common anions was observed to accelerate the reaction, while high pH and the presence of HA inhibited the reaction. In addition, seven transformation products were identified by liquid chromatography time-of-flight mass spectrometry (LC-TOF-MS), from which the reaction mechanism and degradation pathways were tentatively proposed. Direct oxidation, hydroxylation, cleavage of the ester bond and decarboxylation were observed in the degradation process. These findings may provide useful information for the treatment of this pollutant.
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