JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2026
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IF 9.2
Yan Wang,Xin Yang,Chen-Xuan Li,Wenhui Xu,Hong Mei,Feng Zhang,Zhuoya Gao,Yelei Liu,Kai Zhou,Houyun Yang,Kangping Cui
The coexistence of high-value pigment copper phthalocyanine (CuPc) and synthetic dyes in textile wastewater presents a dual challenge of environmental pollution and resource wastage. Herein, a novel singlet oxygen ( 1 O 2 )-dominated self-derived catalytic system was developed to simultaneously degrade rhodamine B (RhB) and recover valuable CuPc. Instead of requiring of the addition of external catalysts, wastewater-borne CuPc acted as an efficient heterogeneous activator for peroxymonosulfate (PMS). The system achieved 93.1% RhB removal within 30 min with an apparent rate constant of 0.089 min −1 , significantly outperforming the individual systems. Mechanistic studies combined with theoretical calculations revealed that the unique Cu-N 4 active sites facilitated PMS activation to generate 1 O 2 as the primary reactive oxygen species. This 1 O 2 -dominated pathway enabled the selective oxidation of electron-rich RhB while preserving the electron-deficient CuPc macrocycle, resulting in an over 80% recovery yield of CuPc. The system exhibited robust performance across a wide pH range (3.0-11.0) and in the presence of interfering anions. Moreover, the practical applicability of the system was further validated in simulated textile wastewater. This work provides a cost-effective, waste-derived catalytic strategy for complex textile wastewater treatment, promoting both pollution control and circular resource recovery.
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PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Jia-Xin Xie,Ya-Feng Chen,Pengli Chen,Yu-Xuan Sun,Han-Lin Wu,Wei-Jian Wang,Hong-Jun Zhao,Bhekie B. Mamba,Zhen-Yuan Wang,Shi-Peng Sun,Weihong Xing
Complex industrial wastewater such as textile wastewater containing textile auxiliaries, dyes, and inorganic salts often demands multi-step treatment processes, suffering lengthy route and compromise of separation efficiency. A highly integrated coagulation–flotation–hollow fiber nanofiltration (iCFN) process is developed to cope with the complex wastewater. By synergizing microbubble flotation with coagulant-formed flocs, the iCFN system simultaneously enriches pollutants into the foam phase and enhances nanofiltration performance by improving selectivity and mitigating membrane fouling. The effects of coagulant dosage and dissolved-air pressure on membrane selectivity, fouling dynamics, fouling composition, and foam characteristics were systematically investigated. Pollutant concentrations in the flotation foam markedly increased. Mechanistic analysis based on floc size distribution and zeta potential reveals that tuning floc surface charge governs the partitioning of contaminants between the membrane and foam phases. The normalized flux ( J/J₀ ) rose from 0.5 to 0.8, accompanied by a significant reduction in irreversible fouling resistance. Under optimized conditions, dye rejection increased from <70% to >99% while salt rejection remained low (< 10%), yielding an over 80-fold improvement in salt/dye selectivity. These investigations provide a rational basis for optimizing the iCFN process toward practical application. The developed iCFN process gives insights into the treatment of complex industrial wastewater with high efficiency and shortened process.
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高影响因子
APPLIED SURFACE SCIENCE
·
2023
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IF 6.7
Boxuan Yao,Ke Zhang,Xiaoyang Liu,Hua Wei,Zihan Li,Jiarui Zhou,Guangfei Yuan,Xin Wang,Shenghong Yang,Jian Liu
Pursuing special negatively charged adsorbents is critical to selectively removing cationic pollutants from effluent. Herein, we proposed a versatile preparation strategy of negatively charged saccharide-based polymers using easily available saccharides as building blocks and hexachlorocyclotriphosphazene as a linker in a facile “one-step” method. Because of the existence of numerous hydroxyl groups and phosphine nitrile units in the skeleton, these polymers show selective adsorption capacity towards cationic dyes and pharmaceuticals, but not for ionic dyes and uncharged bisphenol A. Notably, β-cyclodextrin-based polymers (β-CDPs) displayed remarkable adsorption towards methylene blue (Q m , 1563 mg g −1 ) and promethazine (Q m , 944 mg g −1 ). Systematic experiments revealed that the synergy of “host-guest” inclusion, electrostatic attraction, and π-π interaction promoted the selective and efficient adsorption of cationic pollutants. Given the efficiently selective adsorption of cationic dyes and pharmaceuticals, these negatively charged saccharide-based polymers should be candidates for the adsorption of other cationic pollutants, including heavy metal ions. This work expanded the scope of the special utilization of biomass-based adsorbents for water remediation.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2023
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IF 9.5
Yang Cao,Yinhua Wan,Chulong Chen,Jianquan Luo
Nanofiltration (NF) is considered a competitive technique for acidic stream treatments. However, poorly reactive acid-resistant monomers normally cause thick and uneven separation layers with ultra-low permeability. Herein, catalyst-anchored secondary polymerization is employed after the interfacial polymerization (IP) reaction between trimesoyl chloride (TMC) and 3-aminobenzenesulfonamide (ABSA) to fabricate an extremely acid-resistant NF membrane. Acylation catalysts in ethanol are grafted on the nascent layer by reacting with residual acyl chloride groups to enhance the monomer reactivity, while the ethanol-induced nascent layer structure regulation greatly improves the surface uniformity. Benefiting from the improved self-inhibition effect and optimized phase integrity of the modified IP process, the resulting acid-resistant membrane has unprecedented water permeance (up to 31.4 Lm −2 h −1 bar −1 ), desirable Na 2 SO 4 rejection (92.8%), high dye/H + selectivity and impressive acid stability (20 wt% of H 2 SO 4 for 50 days), outperforming almost all advanced acid-resistant NF membranes. Our work provides a versatile approach for the synthesis of high-performance specialty membranes.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2022
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IF 9.136
Rui Li,Shaochong Cao,Xiaoquan Feng,Jiayu Don,Xiaoxi Guo,Huixian Wang,Yatao Zhang
Loose nanofiltration membranes with high water permeance are desirable for the separation of dyes and salts; however, most membranes tend to be unstable when in contact with sodium hypochlorite solution, which has a significant influence on their properties. In this study, an innovative polymer membrane was fabricated on porous polyacrylonitrile substrates via interfacial polymerization, and a novel hydroxyl-containing guanidinium monomer (SaTG Cl ) were employed as an aqueous monomer. The fabricated polyester (PE) membranes exhibited high water permeance (97.2 L m −2 h −1 bar −1 ), high dye retention (99.4 %), and low salt retention (<15.8 %). Furthermore, the PE membranes exhibited exceptional molecular sieving for dye/salts or dye/dye mixtures. The SaTG Cl -based PE membranes displayed prominent chlorine resistance when soaked in aqueous NaClO. The PE membranes also exhibited distinct antifouling properties. Hence, the newly developed guanidinium-based PE membranes have enormous application prospects in dye purification. This work lays the foundation for the use of hydroxyl monomers in constructing thin-film composite membranes for various separations.
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高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2026
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IF 6.4
Erqi Ha,Ruoyu Geng,Huiqin Li,Xiuming Liu,Qiujin Li,Zheng Li,Jixian Gong
A novel ternary deep eutectic solvent (DES) was prepared. • A “DES pretreatment and pad-steam” clean dyeing method is proposed. • Low-salt and low-alkali dyeing was achieved, saving 50% of Na 2 SO 4 and Na 2 CO 3 . • The steaming time of RB5 was reduced by 2/3. • The dye fixation rate is higher, and DES can be stably recycled. High consumption of salt and alkali is a prominent characteristic of the conventional reactive dyeing process for cotton fabrics. The wastewater from dyeing processes contains substantial amounts of sodium ions and unused dyes, which can cause severe environmental pollution. Therefore, this study developed a novel and clean dyeing method based on mass transfer enhancement in micro dyebath. This was achieved by pretreating cotton fabric with deep eutectic solvent (DES) in combination with “pad-steam” water-saving dyeing process. Under identical conditions, this method achieved a fixation rate of 93.41% for Reactive Black 5(RB5), whereas the conventional method achieved only 72.12%. When achieving optimal dyeing results, this method reduces the consumption of salt and alkali by half compared to conventional methods. Moreover, DES could be recovered and reused, and the dyeing effect remained stable over five cycles. Research indicates that the novel “Urea-Glycerol-K 2 CO 3 (UGK)” ternary DES, leveraging its hydrogen bond disruption capacity and distinctive ionic characteristics, can alter the original hydrogen bond network within cotton fibers, appropriately enlarge amorphous regions, expand dye diffusion pathways, and simultaneously regulate the surface chemical properties of the fibers. These effects collectively enhance the mass transfer of dyes into the fiber during dyeing, improve the fixation rate, reduce the consumption of salt and alkali, and shorten the steaming time, thereby achieving the goal of cleaner dyeing. This study presents a green and sustainable approach for a cleaner dyeing process of cotton fabrics. Download: Download high-res image (223KB) Download: Download full-size image
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
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2023
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IF 5.2
Ge Yang,Mengling Sun,Chunzheng Wang,Yanpeng Li,Yongming Chai,Hailing Guo,Svetlana Mintova
Graphene oxide (GO)-based membranes have shown considerable promise in the field of water treatment. However, the structural swelling of GO membranes in water has hindered their further development. A single regulatory approach seems difficult to simultaneously improve permeability, selectivity, and stability. In this study, we present a dual regulation strategy for GO membranes employing the 1,4-Diaminobutane crosslinker to prevent swelling and maintain an interlayer spacing of 1.34 nm, resulting in effective dye rejection, and employing the hydrophilic EMT-type zeolite promoter to improve the membrane's water permeability. The obtained NH 2 -GO/10EMT composite membrane exhibited enhanced pure water flux (from 9.0 to 20.8 L/m 2 h bar) and anionic dye rejection (from 87.2% to 97.6%) with promising structure stability (at least 20 h), while greatly improving the membrane's fouling resistance (the water recovery ratio increased from 46.5% to 86.2%). Our findings provide a straightforward and efficient approach to the development of high-performance GO membranes for selective water separation.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2021
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IF 8.742
Yehao Jin,Qiangqiang Song,Na Xie,Weigang Zheng,Jing Wang,Junyong Zhu,Yatao Zhang
Advanced organic solvent nanofiltration (OSN) membranes with high permeance and stability are highly needed in petrochemical and pharmaceutical industries. Recently, polymers of intrinsic microporosity (PIMs) have attracted significant attention for the development of advanced membranes, because of their high porosity and solution processability. In this study, a thin film composite membrane based on an amidoxime-functionalized PIM (AOPIM-1) was prepared by spin coating followed by solvent activation. The activation approach could dramatically improve the solvent permeance of the membrane without compromising its rejection performance. The changes in porosity of the AOPIM-1 layer before and after activation were confirmed by positron annihilation Doppler spectroscopy. The optimum membrane exhibited an impressively high ethanol permeance of 15.5 L m −2 h −1 bar −1 , nearly one orders of magnitude higher than that of Starmem240 (a commercial polyimide-based OSN membrane) with a comparable rejection of Rose Bengal (MW 1017 Da). In addition, the present membrane exhibited outstanding stability in polar solvents and a remarkably high rejection of active pharmaceutical ingredients (vitamin B12) from ethanol. This work could provide a new avenue for developing highly permeable OSN membranes and is expected to stimulate the use of PIM membranes in OSN applications.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Yang Cao,Jianquan Luo,Chulong Chen,Yinhua Wan
Thin-film composite (TFC) membrane with high permeability and selectivity is appealing in the field of industrial wastewater treatment. However, polyamide (PA) TFC membranes, the premier choice for water treatment, undergo structure deterioration when continually exposed to acidic environment. Here, we apply surface activation assisted multi-step interfacial polymerization (IP) of 3-aminobenzenesulfonamide (ABSA) and trimesoyl chloride (TMC) to prepare a poly(amide-sulfonamide) (PASA) nanofiltration (NF) membrane with strong acid resistance. Thereinto, stable sulfonamide structure of ABSA effectively prevents the direct attack of acid to the PASA layer. Importantly, the nascent PASA layer acting as a hydrophilic interlayer can promote the subsequent IP reactions to form a less defective separation layer. When the surface activation (water soaking) is carried out during the multi-step IP process, the surface smoothness and hydrophilicity as well as the water permeability of the membrane are improved. Compared to the control, the resultant NF membrane exhibits ~200% increase in water permeability (12.4 Lm −2 h −1 bar −1 ) and >95.0% Na 2 SO 4 rejection. Benefiting from the strong steric exclusion, it also has high color removal when treating model acidic dye solutions (>99.3%) or real resin elution wastewater, showing great potential in the acid reuse for decolorization resin regeneration. Moreover, such membrane owns impressive long-term stability after exposure to strong acid (20 wt% of H 2 SO 4 for 30 days), and its hydrophilic surface contributes to excellent anti-fouling performance. This acid-resistant NF membrane with high permeability and stability provides a new perspective in acidic wastewater treatment.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2021
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IF 8.742
Xiaona Wu,Lei Yang,Fanbin Meng,Wenli Shao,Xiang Liu,Miao Li
The incorporation of functional nanomaterials is a promising technique to enhance or develop novel material properties, such as improvement of permeability and selectivity related to water purification and reuse. Herein, ZIF-8 nanoparticles were used to prepare the thin-film nanocomposite (TFN) membranes via both two-step in situ growth and one-step blending interfacial polymerization (IP) methods. The primary purpose was to investigate specific effects of different preparation methods and ZIF-8 nanoparticles on the structure and properties of TFN membranes. The results show that ZIF-8 nanoparticles increased the negative charge, roughness, and hydrophilicity of the polyamide rejection layer. The effects of one-step blending method on the TFN membrane characteristics were limited as compared to the two-step in situ growth method. The effective incorporation of ZIF-8 nanoparticles into TFN membranes increased the water permeability of TFN-ZIF-0.64 to 20.8 ± 0.62 L·m −2 ·h −1 ·bar −1 and enhanced the Na 2 SO 4 rejection to 94.2 ± 3.4%, which is approximately 1.3 times increase in water permeability and 8.0% rise in rejection than those of TFC membrane. Comparatively, two-step in situ growth ZIF-8-modified TFN membranes displayed ultrahigh rejection of typical anionic dyes, demonstrating superior NF performance.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2021
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IF 8.742
Siyu Zhou,Xiaoquan Feng,Junyong Zhu,Qiangqiang Song,Guang Yang,Yatao Zhang,Bart Van der Bruggen
Although membrane separations have evinced an enormous potential in the treatment of dye wastewater, the ubiquitous membrane fouling leads to a dramatic decline of separation efficacy and life span, impeding the progress of membrane-based applications. The copper-triazolate MOFs (CuTz-1) exhibit robust thermal and chemical stability with a unique feature of degrading organic molecules under the visible light, rendering them highly promising for construction of self-cleaning membrane. This study presents the utilization of photocatalytic MOFs (CuTz-1) for construction of the CuTz-1/graphene oxide (CuTz-1/GO) composite membranes via filtration-assisted assembly followed by chemical crosslinking. The presence of CuTz-1 among the GO nanosheets promotes an enhancement of the GO interlayer distance, thereby promoting a higher water flux without compromising the dye rejections. The best-performing CuTz-1/GO membranes exhibits the high water permeance of 40.2 L m −2 h −1 bar −1 and superior dye rejections (Congo red: 99.4%, direct red: 98.2%, methyl blue: 94.9%), low salt rejections (e.g., NaCl: 0.3% and Na 2 SO 4 : 19.6%), as well as long-term nanofiltration stability. Furthermore, after visible light irradiation, the treated membrane was nearly recovered to have the original separation efficacy due to effective photocatalytic removal of the attached dyes from the membrane surface. The CuTz-1/GO membrane also exhibits an ultra-high bacteriostasis rate of 100%, probably to be ascribed to the combined antimicrobial effect of CuTz-1 and GO. This work is expected to give a useful guideline for developing loose nanofiltration membranes with favorable photocatalytic and antimicrobial properties, offering an appropriate solution of using self-cleaning membranes for the treatment of dye wastewater.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2020
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IF 3.573
Lei Liu,Shaoyi Qu,Zhaoxian Yang,Yingbo Chen
Salt accumulation often occurs in conventional processes for textile wastewater treatment, which affects the dye removal efficiency and water recovery rate. Nanofiltration is a feasible way to fractionate dye/NaCl mixtures. In this study, to enhance the dye/salt separation efficacy, two-dimensional (2D) WS2 nanosheets were incorporated and coordinately bonded to polyelectrolytes for fabricating layer-by-layer hybrid nanofiltration membranes. The incorporation of WS2 enhanced the hydrophilicity and surface negativity of the membrane. Further, the stacking of WS2 nanosheets and their frictionless surface promoted water transportation in polyelectrolyte multilayers. WS2-incorporated membrane (2 wt %) exhibited the highest pure water flux and achieved separation factors of 7238 and 9036 during filtration of Conge red/NaCl and reactive black 5/NaCl binary solutions, respectively. Moreover, the instability of the multilayered polyelectrolyte membrane in high ionic strength solutions was overcome by the incorporation of WS2, and the WS2-incorporated membrane showed better antifouling performance toward model organic foulants.
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高影响因子
危险品化学品经营许可证（带存储）