CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yanhui Zheng,Shaofan He,Kai Wang,Yuyao Xie,Yukui Gou,Hong Liu,Jianying Huang,Zhongyi Jiang,Yuekun Lai
Anti-reflective coatings play a vital in improving the power conversion efficiency (PCE) of solar cells, but they still suffers from poor self-cleaning performance and low transmittance. Herein, this paper presents broadband anti-reflective coatings prepared from ZnO, polyethylene glycol (PEG) and modified silica gel consists of the low surface energy substances methyltrimethoxysilane (MTMS) and tetraethylorthosilicate (TEOS). Specifically, the prepared coatings possess a porous cross-linked network to ensure low refractive index and good adhesion to the substrate. Based on experimental results, the broadband transmittance of these coatings is 4.8 % higher than bare glass and the peak transmittance is up to 98.4 % at 473 nm. Correspondingly, the PCE of the coating increased by 1.23 %. Simulated outdoor testing further confirms its excellent dust removal and organic matter degradation capabilities. These rational designed multifunctional coatings possess great potential for application in broadband transmittance-enhancing and in a variety of complex environments (dust, organic contamination, bird droppings).
研究领域:
材料科学
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光学工程
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Xian Bao,Qinglian Wu,Jiayu Tian,Wenxin Shi,Wei Wang,Zhiqiang Zhang,Ruijun Zhang,Bing Zhang,Yuan Guo,Shihu Shu,Fuyi Cui
An elaborate structural and chemical depth profile of the thin film composite (TFC)-forward osmosis (FO) membrane is indispensable to the complete understanding of how the substrate structures influence the in-situ polyamide (PA) layer formation and ultimately the wastewater concentration performance of the resultant TFC-FO membrane. Herein, the X-ray photoelectron spectroscopy paired with Ar 2500 + gas cluster ion beams sputtering is introduced for the first time to conduct the depth profiling analysis of the PA-based TFC-FO membrane. The fine chemical and structural properties of the TFC-FO membranes were successfully reconstructed from the depth profiles, which revealed that the sponge-like substrate with small surface pores favored the formation of a smooth and thin PA layer with a highly cross-linked inner layer, while the macroporous substrate with large surface pores facilitated the development of a rough and defective PA layer with deep formation inside substrate pores. Benefiting from the thin effective thickness and dense inner selective layer, the PA layer formed on sponge-like substrate exhibited superior water permeability and salt selectivity. Besides, even suffered from more serious internal concentration polarization within substrate, the smooth PA layer surface with fewer carboxylic groups endowed the sponge-like substrate supported TFC-FO membrane with much higher anti-fouling capacity and average water flux than its counterpart. However, the TFC-FO membrane with highly cross-linked PA layer still exhibited poor NH 4 + -N rejections (56.93 ± 0.95%). This work opens up a frontier for depth profiling of the ultrathin PA layer and provides theoretical guidance for the preparation of high-performance and anti-fouling TFC-FO membrane.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF POLYMER SCIENCE
·
2020
·Vol. 39
·期 2
·181-188
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IF 3.154
Cao Jiang-Yong-Quan,Chen Si-Chong,Zhang Jie,Xie Yang-Yang,Wang Yu-Zhong
Due to the important role of oil source in our life, the separation of water-in-oil emulsion is urgent and necessary. Membrane seperation technology has been an efficient and widely used method in separating oil-water separation. Herein, we report a versatile approach to fabricate surface carbonized membranes with self-standing property from biomass-derived precursor by synergistic charring of phytic acid, arginine and filter paper. The obtained membrane exhibited superhydrophobicity in oil, excellent fouling resistance, and self-supporting ability. The membrane can be cycle-used at least 12 times with high permeation flux (up to 1380 L·m −2 ·h −1 ) and separation efficiency (up to 99.4%).
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2016
·
IF 2.567
Chao Liu,Qingyi Xie,Chunfeng Ma,Guangzhao Zhang
Polydimethylsiloxane (PDMS)-based coatings are environment-friendly systems for marine fouling release. However, they usually exhibit low adhesion to substrate and poor mechanical properties, which limits their applications. We have developed polyurea (PUa) with PDMS as soft segments and 1,6-hexanediamine as hard segments via a polycondensation reaction. Such polyurea (PDMS-PUa-x) is hydrophobic with water contact angle above 90° and has low surface energy (25–29 mJ·m–2). In particular, its adhesion to the substrate (>1.0 MPa) and modulus (>80.0 MPa) are significantly improved in comparison with those of PDMS coatings. Laboratory bioassay and marine field tests demonstrate that PDMS-PUa-x has good fouling release performance.
研究领域:
材料科学
·
海洋生物学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Jingge Ju,Yuting Huang,Mengyao Liu,Nan Xie,Jiali Shi,Yiran Fan,Yixia Zhao,Weimin Kang
Low permeate flux and membrane fouling are major limiting factors for solar-driven membrane distillation (SDMD) industrial applications. Here, we report a Janus nanofiber membrane with electrospinning CB/PVA as hydrophilic photothermal layer and electro-blown spinning PTFE nanofiber membrane as hydrophobic layer, which exhibits excellent photothermal conversion performance, anti-fouling performance and durability. The hydrophilic photothermal layer simultaneously captures solar energy and performs photothermal conversion, repels chemical/oil-based pollutants and promotes steam flow. At the same time, the low surface of PTFE layer can guarantee the long-term durability of the composite nanofiber membrane. Under the light intensity of 1 kW·m −2 , the Janus nanofiber membrane can obtain a permeate flux of 1.05 L·m −2 ·h −1 and a salt rejection of > 99.99 %. And the photothermal conversion efficiency reached 71.4 %. More importantly, the permeate flux of the Janus nanofiber membrane was still stable at 1.035 L·m −2 ·h −1 after continuous treatment of pollutant-containing feed solutions for 60 h, and the salt rejection was > 99.98 %. This indicates that the efficient photothermal conversion performance and anti-fouling properties make the CB-PVA/PTFE photothermal nanofiber membrane promising for generating fresh water from feed solutions containing various pollutants in SDMD systems.
研究领域:
材料科学
·
环境工程
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2017
·
IF 6.035
Yao Wang,Zhi Wang,Xianglei Han,Jixiao Wang,Shichang Wang
Thin film composite (TFC) polyamide reverse osmosis (RO) membranes are naturally prone to fouling, especially the biofouling, due to their inherent physicochemical surface properties. In the current study, highly efficient anti-biofouling membrane was fabricated by assembly of poly acrylic acid and potent anti-microbial agent tobramycin on a commercial TFC RO membrane surface using the layer-by-layer technique. The successful modification was verified by XPS , and the membrane surface hydrophilicity was substantially improved as detected by contact angle measurement. Membrane prepared under optimized condition shows 18% increased water flux and slightly enhanced (0.4%) salt rejection properties. The antifouling performance is significantly improved, as the modified membrane demonstrates 37% and 26% higher flux than the virgin membrane after three-cycling fouling of bovine serum albumin and sodium alginate solution, respectively. In addition, modified membrane possesses dramatically efficient anti-microbial property, which can achieve more than 99.6% killing ratio for both the Gram-negative Escherichia coli and Gram-positive Bacillus subtilis. The modified membrane well maintains its high permselectivity after 7-d severe biofouling test. Moreover, the membrane shows excellent performance stability.
研究领域:
材料科学
·
环境工程
·
生物医学
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2016
·
IF 4.412
Chenxi Dong,Zhi Wang,Junhui Wu,Yao Wang,Jixiao Wang,Shichang Wang
In this work, a green and facile approach was developed to in situ immobilize silver nanoparticles (AgNPs) onto the commercial polyamide reverse osmosis (RO) membrane (virgin membrane) surface via a two-step surface modification process. First, an ultrathin precursor layer of tannic acid–ferric ion–polyethylenimine (TA-Fe-PEI) complex was deposited onto the virgin membrane surface . Then, due to the strong reducibility of TA, AgNPs were in situ formed on the membrane surface to obtain the TA-Fe-PEI/Ag-modified membrane. The materials used to form the precursor layer are environmentally friendly and low-cost. Meanwhile, no additional reductants are needed in the AgNPs formation process. SEM analysis confirmed the uniform distribution of AgNPs on the membrane surface. Water contact angle measurement indicated increased surface hydrophilicity after the modification. Compared with the virgin membrane, the water flux and salt rejection of TA-Fe-PEI/Ag-modified membrane increased. After contacting with Escherichia coli and Bacillus subtilis for 1.5 h, the bacteria mortalities of TA-Fe-PEI/Ag-modified membrane could reach 100%. Moreover, the membrane biofouling test indicated that compared with the virgin membrane, the TA-Fe-PEI/Ag-modified membrane processed higher anti-biofouling property. Static immersion experiment demonstrated that AgNPs were stably immobilized on the membrane surface.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2022
·
IF 11.211
Jiawei Sun,Wei Jia,Jiaxin Guo,Noman Khalid Khanzada,Pengrui Jin,Pak Wai Wong,Xinning Zhang,Alicia Kyoungjin An
This study provides an in-depth investigation on the incorporation of carbon quantum dots (CQDs) in fabricating novel thin-film nanocomposite (TFN) membranes to address the high demand for highly water-permeable pervaporation (PV) membranes for desalination processes, especially for treating high-salinity water, brine, or wastewater. CQDs have emerged as a green nanofiller for improving membrane performance owing to its excellent biocompatibility, non-toxicity, uniform dispersion, and rich functional groups. Herein, we synthesize amino-embedded carbon quantum dots (ACQDs) via a simple one-pot hydrothermal method and employ them in interfacial polymerization to fabricate the ACQD-TFN membrane. Benefiting from the incorporation of ACQDs, the optimized ACQD-TFN membrane exhibited an enhanced water flux of 23.2 kg·m −2 ·h −1 at 70 °C during the treatment of a 10 wt% NaCl solution, which was 44% higher performance than that of the unmodified thin-film composite membrane . The ACQD-TFN membrane's salt rejection remained at 99.9% even after 96,000 ppm·h chlorine exposure, exhibiting excellent chlorine resistance. Also, the ACQD-TFN membrane's regular surface microstructure and increased hydrophilicity endowed good anti-fouling property, and its flux recovery rate reached 91% after 5 fouling-cleaning cycles. This work provides a feasible strategy for fabricating highly permeable, chlorine-resistant, and anti-fouling PV membranes for desalination applications.
研究领域:
材料科学
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环境工程
·
化学工程
✓ 已验证
DOI
高影响因子
CORROSION REVIEWS
·
2020
·Vol. 38
·期 4
·331-338
·
IF 1.912
Weibin Jiang,Quanliang Niu,Lin Cheng,Tao Zhou,Huasheng Xie
The damage caused by marine fouling organisms to ships and underwater artificial equipment is becoming increasingly serious issue, and the prevention and control of marine biofouling has always been a research hotspot in marine coatings. Aiming at the problems of poor adhesion, long curing time and high curing temperature of low-surface energy marine antifouling coatings of organosilicon, a hydrophobic low-surface energy nano-SiO 2 /silicon acrylic resin nanocomposite coating was synthesized. The anticorrosive property of the composite coatings was analyzed by simulated seawater periodic immersion experiments. The gel permeation chromatography analysis showed that polydimethyl-siloxanes (PDMS) is involved in cross-linking reactions. The dynamic thermomechanical analysis indicated that the glass transition temperature of resin is 58 °C. The contact angle (CA) test showed that the CA of nanocomposite coating is 109.99°. All the detection results can support the excellent antifouling and anticorrosion performance of the low surface energy nanocomposite coatings.
研究领域:
材料科学
·
海洋生物学
✓ 已验证
DOI
高影响因子
Cell Reports Physical Science
·
2023
·
IF 8.9
Shouzheng Jiao,Yufen Li,Yang Zhang,Dongjie Zhang,Yuyan Liu,Zhongjun Cheng
Liquid-like PDMS brushes coating with low adhesion to droplets are significant in both fundamental research and practical application. Covalent grafting is a common strategy to prepare PDMS brushes with low adhesion to diverse liquids in a wide range of surface tensions, but it is only suitable for high active inorganic substrates. Casting of mixtures containing PDMS can solve this problem; however, homogeneity and low adhesion cannot be guaranteed. Here we report a simple method by step-by-step spraying for preparing PDMS brushes, which is suitable for both substrates. Droplets with a wide range of surface tension can slide off the coating with a sliding angle less than 10°. Research results indicate that the polyamine with flexible molecular chain and high functionality is beneficial for brushes coating with high grafting density and excellent surface lubricity. Finally, good stability and diverse applications in fouling resistance, self-cleaning, anti-bursting, etc. are also demonstrated.
研究领域:
材料科学
·
界面化学
✓ 已验证
DOI
高影响因子
Polymers
·
2024
·Vol. 16
·期 9
·1194
·
IF 4.7
Huyang Zhao,Ting He,Shuang Yao,Long Tao,Xinhai Zhang,Zhaohui Wang,Zhaoliang Cui,Rizhi Chen
The research used polyethersulfone (PES) as a membrane material, polyvinylpyrrolidone (PVP) k30 and polyethylene glycol 400 (PEG 400) as water-soluble additives, and dimethylacetamide (DMAc) as a solvent to prepare hollow-fiber ultrafiltration membranes through a nonsolvent-induced phase separation (NIPS) process. The hydrophilic nature of PVP-k30 and PEG caused them to accumulate on the membrane surface during phase separation. The morphology, chemical composition, surface charge, and pore size of the PES membranes were evaluated by SEM, FTIR, zeta potential, and dextran filtration experiments. The paper also investigated how different spinning solution compositions affected membrane morphology and performance. The separation efficiency of membranes with four different morphologies was tested in single-protein and double-protein mixed solutions. The protein separation effectiveness of the membrane was studied through molecular weight cutoff, zeta potential, and static protein adsorption tests. In addition, the operating pressure and pH value were adjusted to improve ultrafiltration process conditions. The PES membrane with an intact sponge-like structure showed the highest separation factor of 11, making it a prime candidate membrane for the separation of bovine serum albumin (BSA) and lysozyme (LYS). The membrane had a minimal static protein adsorption capacity of 48 mg/cm2and had excellent anti-fouling properties. When pH = 4, the BSA retention rate was 93% and the LYS retention rate was 23%. Furthermore, it exhibited excellent stability over a pH range of 1–13, confirming its suitability for protein separation applications.
研究领域:
生物工程
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiaonan Wu,Yang Guo,Dailin Yang,Yanfu Wu,Wenyu Xiang,Juan Wang
Solar-driven interfacial evaporation offers a promising sustainable approach to clean water production, leveraging its low carbon footprint and adaptability to diverse environments. Despite advancements in enhancing solar vapor generation rates, inefficient condensation heat dissipation remains a major limitation, reducing overall water collection efficiency. Here, we present a synergistic evaporative cooling and radiative cooling (SECRC) strategy that significantly boosts solar-driven clean water production by effectively dissipating condensation heat. Using a titanium dioxide nanocrystal-coated delignified wood substrate (DW-TiO 2 NC) as the SECRC platform, we achieved a 2.5-fold increase in heat dissipation flux and enhanced vapor diffusion towards the condensation interface. This innovation improved water production efficiency from 0.50 to 0.80. Furthermore, the TiO 2 coating provided exceptional environmental anti-fouling capabilities, maintaining a stable outdoor water collection rate with only ∼9 % reduction after one month of exposure, compared to an 18 % decline in uncoated systems. This all-passive, single-solar-powered SECRC system delivers an efficient, stable, and practical solution to address global clean water challenges, marking a transformative advancement in solar water purification technology.
研究领域:
材料科学
·
环境科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）