SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Yuliang Pang,Yue Huang,Jianteng Sun,Maofeng Liang,Lichao Gao,Yue Li,Tiantian Liu,Haidong Cao,Yuanshuai Wan,Hongxiang Zhao,Yu Zhao,Yanwei Fu,Xingfa Qiu,Junfu Wei,Huan Zhang,Xiaolei Wang,Xiaoqing Zhang,Zhiyun Kong,Huicai Wang
Palladium, a strategic precious metal with important applications in electronics, chemical and pharmaceutical fields, but its natural reserves are scarce and expensive, efficient recovery technology has become a key issue in the field of resource recycling. This study developed an in situ double cross-linking strategy to hance the stability of mussel-inspired coatings, and amino-functionalized adsorbent (PP-TEPA) was successfully constructed, which made a breakthrough in cost control and stability. The mussel-inspired coatings were formed by rapid deposition in the presence of oxidizing agents, catechol and tetraethylenepentamine (TEPA) and were significantly enhanced by in situ cross-linking of glutaraldehyde (GA) and ethylene glycol diglycidyl ether (EGDE) to form a three-dimensional cross-linked structure. PP-TEPA exhibits exceptional stability (20 days in organic solvents, acids and bases) and achieves breakthrough cost control ($40/kg). It demonstrates high Pd (II) adsorption capacity (226.79 mg/g), outstanding selectivity (separation factor > 10,000), salt resistance, ultrafast desorption (99 % efficiency in 1 min), and excellent reusability. The application of PP-TEPA for the recovery of palladium from real pharmaceutical wastewater was demonstrated. This work reveals the adsorption behavior and adsorption mechanism of Pd (II) on PP-TEPA for precious metal recovery.
研究领域:
材料科学
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环境工程
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化学工程
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纳米技术
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资源回收
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产品关联
DOI
高影响因子
COLLOID AND POLYMER SCIENCE
·
2023
·Vol. 302
·期 1
·43-56
·
IF 2.4
Yu Jinshuo,Zhao Tao,Li Chentao,Pan Hongwei,Tan Zhiyong,Yang Huili,Zhang Huiliang
In this work, polylactic acid/poly (butylene adipate-co-terephthalate) (PLA/PBAT) melt-blown nonwovens with well oil-water separation properties were processed with melt-blown technology. The effects of different contents of PBAT (0, 2, 4, 6, 8, and 10 wt%) on the thermal, crystalline, morphology, mechanical properties, wettability, and oil-water separation performance of the PLA/PBAT melt-blown nonwovens were thoroughly investigated. The result of differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD) shows that PBAT promotes the movement of the PLA molecular chain and promotes crystallinity. With increasing the blending ratio of PBAT, the degree of crystallinity ( X c ) of PLA was also enhanced from 1.5 to 15.5%, respectively, which was higher than neat PLA. Furthermore, PBAT increases the toughness and hydrophobia of the PLA melt-blown nonwovens. The elongation at break of PLA/PBAT 90/10 (53.3 ± 3.7%) melt-blown nonwovens was 12.3% higher than the neat PLA (41.0 ± 2.9%). The result of the research on the influence of the oil-water separation parameters and oil absorption experiments shows that the 90/10 PLA/PBAT melt-blown nonwoven exhibits the highest hydrophobic (water contact angle is 133.2°). Meanwhile, the oil-water separation efficiency is 96%. The PLA/PBAT melt-blown nonwovens have excellent oil-water separation capability.
研究领域:
材料科学
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化学工程
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环境科学
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高分子科学
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DOI
高影响因子
MATERIALS RESEARCH BULLETIN
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2024
·
IF 5.3
Fang Xing,Satheesh kumar Balu,Panpan Zhang,Ruimin Xing
Solar desalination is a promising solution to address global water scarcity. In this study, a novel superhydrophobic photothermal evaporator based on MoS 2 nanoflowers, known for their excellent photothermal conversion properties. The evaporator was developed is coated with 1H, 1H, 2H, 2H-Perfluorodecyltriethoxysilane (PFDTES) to create superhydrophobic structures, which are then loaded onto a macroporous non-woven fabric (NWF) to facilitate efficient steam release. The hydrophobic PFDTES coating effectively prevents salt crystallization, ensuring long-term desalination. The developed device demonstrates an exceptional solar steam generation performance of 1.52 kg·m −2 ·h −1 with an evaporation efficiency of up to 87.1%. This evaporator offers a promising solution to water scarcity challenges due to its high evaporation efficiency, impressive durability, and low-cost.
研究领域:
材料科学
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环境工程
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太阳能
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水处理
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产品关联
DOI
高影响因子
Advanced Materials Interfaces
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2020
·Vol. 8
·期 1
·2001485
·
IF 4.948
Chen Li,Lipei Ren,Xin Liu,Chunhua Zhang,Dongzhi Chen,Weilin Xu,Yong Qin
To develop an effective and convenient solution for underwater repelling oil and cleaning up oily water, TiO 2 nano-coating is deposited on the surface of poly(propylene) nonwoven (PPN) by atomic layer deposition (ALD). There is no evident change in the morphologies comparing ALD-modified PPN with PPN except for thickness. For oils of different densities, such as 1,2-dichloroethane, methylene chloride, chloroform, carbon tetrachloride, n -hexane, and petroleum ether, the underwater oil contact angle and underwater oil sliding angle of ALD-modified PPN range from 152.25° to 156.19° and 5.63° to 8.80°, respectively, exhibiting superior superhydrophilicity and underwater superoleophobicity. Notably, ALD-modified PPN shows a high chemical stability in different solutions, such as acid, alkali, salt, and polar solvent, which even can slightly improve the underwater superoleophobicity of TiO 2 nano-coating. The excellent underwater anti-oil property, self-cleaning property, robust chemical resistance, and easily scaled-up preparation process of TiO 2 -coated PPN suggest great potential for practical applications in the energy, environmental protection, marine anti-fouling, and microflow control fields.
研究领域:
材料科学
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环境科学
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化学工程
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表面化学
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产品关联
DOI
高影响因子
Surfaces and Interfaces
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2025
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IF 6.3
Dawei Shi,Xin Zhang,Chunhui Chen,Huifang Peng,Zhi Liu
Solar interfacial evaporation has emerged as a promising technology for addressing the global water crisis challenge. Within this field, fabric-based evaporators have garnered considerable research attention due to their scalability and cost-effective manufacturability. Strikingly, cellulose-based materials have become particularly attractive for evaporator design owing to their hydrophilicity and biodegradability, making them ideal candidates. In this study, we developed a high performance solar evaporator through a facile fabrication process by integrating polydopamine (PDA) and polyaniline (PANI) with a cellulose nonwoven fabric substrate. The synergistic interaction between these components endows the evaporator with exceptional photothermal conversion capabilities, demonstrating a remarkable average optical absorption efficiency of 92.44 %. The device achieves surface temperatures of 105.1°C at dry state and 65.9°C at wet state under 3 kW m⁻². It achieves a high evaporation rate of 1.488 kg m⁻² h⁻¹ and an energy conversion efficiency of 94.09 % under 1 kW m⁻². Field testing demonstrated practical freshwater production of 6.28 kg m⁻² over an 8-hour operational period. Furthermore, the material's inherent superior hydrophilicity effectively inhibits salt accumulation, ensuring stable long-term performance. This cellulose-based photothermal evaporation system represents a significant advancement in sustainable desalination technology for large-scale seawater desalination and wastewater reclamation.
研究领域:
可再生能源
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材料科学
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环境工程
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纳米技术
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化学工程
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可持续技术
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产品关联
DOI
高影响因子
JOURNAL OF POLYMER SCIENCE
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2024
·
IF 3.9
Zihao Zhao,Yunyun Xue,Chuyao Wang,Ronglu Cui,Yu Zhao,Lifeng Fang,Baoku Zhu
Amphiphilic cationic polymers mimicking the membrane-disrupting mechanism of natural antimicrobial peptides displays high-efficacy bactericidal activity and meanwhile good biocompatibility, while electrostatic adsorption enables bacteria to adhere to substrate surfaces, effectively lowering the antimicrobial effect, so it is worthwhile to tackle the problem of bacterial adhesion to prolong its antibacterial activity. Herein, a kind of polyquaternium latex (PQL) was synthesized to coat polypropylene nonwoven fabrics (PPNFs) with bacterial repellency and rapid biocidal activity toward both Staphylococcus aureus and Escherichia coli . Compared with polyquaternium solution coatings, latex coatings provided PPNFs with unique microscopic morphology and surface chemistry rich in polyoxyethylene moieties, achieving better resistance to bacterial adhesion, and meanwhile PQL coated PPNFs also delivered 99% killing rates against both bacteria within 2 min. After exposure to ultrasonic cleaning for 4 h, PQL modified PPNFs still demonstrated good bactericidal activity. Moreover, they also displayed low cytotoxicity. This work provides guidance for the design of antibacterial and antiadhesion coatings to combat bacterial infection. Graphical
研究领域:
材料科学
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生物技术
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微生物学
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表面化学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
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2023
·
IF 5.2
H. Ma,H. Zhao,X. Li,K. Hou,J. Wang,Z. Cai
Irregular yttrium oxide nanopuncture-coated hollow glass microspheres ( [email protected] 2 O 3 ), as a lightweight, thermal insulating, and high IR reflectivity materials could be prepared by a simple hydrothermal and high-temperature calcination process. Here, a flexible composite fabric with sandwiched structure was designed to combine the good infrared camouflage performance with self-cleaning ability. Thereinto, aluminum foil (AF), [email protected] 2 O 3 , and polypropylene spunbond nonwoven fabric (PPF) were binded and applied for low emissivity layer, thermal insulating layer and self-cleaning layer, respectively. The flexible composite fabric can realize the infrared camouflage effect to effectively shield the heated object (62.8 °C). The radiation temperature detected by the infrared camera is only 32.4 °C, which had a reduction of 30.4 °C. Based on the functional fabrics (anti-fouling performance), excellent thermal insulation (K = 0.0908 W/m-K) and low infrared emissivity (Average emissivity ( ε ‾ ) of AF plane of composite <0.1; Average emissivity ( ε ‾ ) of PPF plane of composite <0.5), the composite material enables the choice of presenting antifouling or thermal camouflage properties in different environments. This work provides another insight into the fabrication of flexible infrared camouflage materials while facilitating the exploration of flexible infrared camouflage materials.
研究领域:
材料科学
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热工程
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光学
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纳米技术
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产品关联
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
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2024
·
IF 4.5
Jikui Wang,Yuwei Feng,Yicheng Huang,Xinquan Zou,Yi Zhang,Wenxiu Liu,Kun Wang
Membrane separation technology is an important method of treating oily wastewater with great potential for development. However, preparation of membranes for efficiently separating complex oil-water mixtures continues to be challenging. In this study, a strategy for efficient construction of asymmetric wetting surfaces was designed, and successfully prepared an asymmetric super wetting Janus polyvinylidene fluoride (PVDF) modified separation membrane to separate complex oil-water emulsion. The composite PVDF membrane was prepared using a non-woven fabric substrate and phase conversion method. Subsequently, composite membrane was rapidly hydrophilic modified on one side using tannic acid and 3-aminopropyltriethoxysilane under the strong oxidizing effect of oxidant sodium periodate. Then non-woven fabric substrate was peeled off to obtain a Janus PVDF modified separation membrane. The front and back sides of the separation membrane have highly asymmetric micromorphology and wettability. The front side has hydrophilic/underwater oleophobic wettability (with a water contact angle of 31°). The separation efficiency of oil-in-water emulsion is up to 99.5%, while the back side has super lipophilic/underoil hydrophobic wettability (with a water contact angle of 131°). The separation efficiency of water-in-oil emulsion is up to 98.6%, improving the efficiency of oil in water separation and application range.
研究领域:
膜科学
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环境工程
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材料科学
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产品关联
DOI
高影响因子
FIBERS AND POLYMERS
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2023
·Vol. 24
·期 6
·1983-1994
·
IF 2.5
Feng Jiangli,Sun Hui,Yu Bin,Yang Xiaodong,Xu Lei,Liu Peng,Cui Xiaogang
A kind of NH 2 -MIL-101(Fe)@viscose spunlaced nonwoven material (VSN) was prepared by in situ solvothermal method for the adsorption of organic dyes in wastewater and then carbonized in a tube furnace under N 2 atmosphere at 300 °C to improve the adsorption performances. The results showed that the synthesized NH 2 -MIL-101(Fe) particles with a polyhedral structure were uniformly loaded on the VSN surface. After being carbonized, the NH 2 -MIL-101(Fe)@viscose spunlaced nonwoven porous carbon material (VSNC) were obtained. Compared with uncarbonized NH 2 -MIL-101(Fe)@VSN, the adsorption efficiency of NH 2 -MIL-101(Fe)@VSNC for methylene blue (MB) significantly enhanced and could reach 98.3% under the condition of water bath temperature of 30 °C and pH 9. According to adsorption thermodynamic analysis, the MB adsorption process by NH 2 -MIL-101(Fe)@VSNC was spontaneous. The quasi-secondary adsorption kinetic model was more suitable to describe the whole adsorption process of NH 2 -MIL-101(Fe)@VSNC, implying that the adsorption mechanism of NH 2 -MIL-101(Fe)@VSNC for MB was mainly chemical adsorption. NH 2 -MIL-101(Fe)@VSNC presented good structure stability and reusability during the adsorption process. After being recycled five times, the MB adsorption efficiency still maintained about 86.3%.
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
·
IF 13.3
Jinqi Wang,Xiaolong Su,Qianqin Zhu,Yaling Zhai,Xin Dai,Ning Tang,Wangxiang Pan,Hengxue Xiang,Meifang Zhu
An increasing number of hospital-acquired infections (HNIs) confirms the urgency of medical protective fiber material (MDPF), which possesses high strength, low toxicity and excellent hydrophobicity and is considered as an effective method to deal with HNIs. However, the current performance of MDPF mainly relies on a single physical barrier mechanism, and pathogenic and contagious bacteria or virus attached on the surface barrier layer are one of the important paths for secondary infection. Therefore, research on the fabrication of highly effective antibacterial MDPF is of great significance for preventing contagious infections. Herein, high-strength, environment-friendly and antibacterial PE@PDA@ZnO-Ag (PE@PDAZA) nonwoven fabric was successfully prepared through a simple one-pot coating method. The functional fabric exhibits antibacterial rate up to 99.9 % against Escherichia coli ( E. coli ) and Bacillus subtilis ( B. subtilis ) with low amount of antibacterial agent additions. Moreover, the fabric exhibits tested tensile strength of 35.4 ± 2.9 MPa. This work provides a new strategy for preparing high-strength and automatically-protective MDPF, which can reduce hospital-acquired contagious infections through a simple post-treatment process and has great potential for large-scale production.
研究领域:
材料科学
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生物医学工程
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纺织工程
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高分子科学
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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Chao Deng,Farzad Seidi,Qiang Yong,Xiangyu Jin,Chengcheng Li,Xing Zhang,Jingquan Han,Yuqian Liu,Yang Huang,Yuyan Wang,Zhenghong Yuan,Huining Xiao
Personal protective equipment (PPE) such as face masks is vital in battling the COVID-19 crisis, but the dominant polypropylene-based PPE are lack of antiviral/antibacterial activities and environmental friendliness, and have hazardous impact on the soil and aquatic ecosystems. The work presented herein focused on developing biodegradable, antiviral, and antibacterial cellulose nonwovens (AVAB-CNWs) as a multi-functional bioprotective layer for better protection against coronavirus SARS-CoV-2 and addressing environmental concerns raised by the piling of COVID-19 related wastes. Both guanidine-based polymer and neomycin sulfate (NEO) were reactive-modified and covalently grafted onto the surface of cellulose nonwovens, thereby conferring outstanding antiviral and antibacterial activities to the nonwovens without deteriorating the microstructure and biodegradability. Through adjusting the grafting amount of active components and selecting appropriate reagents for pretreatment, the antimicrobial activity and hydrophobicity for self-cleaning of the nonwovens can be tuned. More importantly, we demonstrated for the first time that such multi-functional nonwovens are capable of inactivating SARS-CoV-2 instantly, leading to high virucidal activity (> 99.35%), which is unachievable by conventional masks used nowadays. Meanwhile, the robust breathability and biodegradability of AVAB-CNWs were well maintained. The applications of the as-prepared nonwovens as high-performance textile can be readily extended to other areas in the fight against COVID-19.
研究领域:
材料科学
·
环境科学
·
生物技术
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纺织工程
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公共卫生
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2018
·
IF 6.945
Guibin Li,Xin Chen,Lixiao Miao,Jitao Chen,Junrong Zheng
Most Li-metal batteries can work safely only under 45 °C and have risks of burning or explosion. A novel nonflammable Li-battery is developed to address the challenge, using an interpenetrating rigid-flexible poly (aryl-ether-ketone) nonwovens (PAEKNW) cross-linked with poly(ethylene glycol) dimethacrylate electrolyte to transport lithium ions . The hybridized polymer electrolyte possesses a high ionic conductivity of 1.2 × 10 −3 S cm −1 at room temperature and a wide electrochemical window with decomposition voltage higher than 4.5V. It does not readily catch fire or shrink, even under open flame, and shows no noticeable volumetric expansion or contraction at 80 °C, in stark contrast to most liquid-electrolytes-based or gel batteries. Even after cut off by one-third, the battery continues to function. The unique bi-functional molecular design of the polymer electrolyte, which guarantees simultaneously a very rare combination of thermal and mechanical stability, high ion conductivity, and a wide electrochemical window at room temperature, is the key factor responsible for the excellent comprehensive performances.
研究领域:
材料科学
·
电化学
·
能源存储
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）