CHEMOSPHERE
·
2022
·
IF 8.943
Bin Zhao,Min Sun,Zhiqiang Guo,Liang Wang,Yiran Qian,Xiaojia He,Jixiang Li
Endocrine disrupting compounds (EDCs) have been increasingly detected in drinking water sources, and pose severe threat to human health. Polyamide (PA) based nanofiltration (NF) membrane has great potential for EDCs removal from water, but the removal of hydrophobic EDCs is not satisfying due to strong hydrophobic affinity. In this study, UiO-66-NH 2 /PA membranes were prepared by predepositing hydrophilic UiO-66-NH 2 onto the substrate prior to interfacial polymerization. The UiO-66-NH 2 aggregates increased the permeable area and strengthened the “gutter effect”. Therefore, the pure water flux of UiO-66-NH 2 /PA increased by 115% compared with that of the thin-film composite (TFC) membrane, and its rejection of Na 2 SO 4 was 96%. The hydrophilicity-enhanced PA film reduced its adsorption of EDCs and decreased the driving force for EDCs diffusion. Moreover, the UiO-66-NH 2 -induced hydrophilic nanochannels, including the interfacial gaps between PA film and UiO-66-NH 2 aggregates, the gaps in UiO-66-NH 2 aggregates, and the inherent pores in UiO-66-NH 2 crystals, alleviated the hydrophobic affinity and effectively restricted EDCs diffusion. The rejection rates of methylparaben, propylparaben, bisphenol A, and benzylparaben by the optimal UiO-66-NH 2 /PA were 50%, 67%, 75%, and 85%, respectively, and the water/benzylparaben selectivity was 4.4 times as high as that of TFC. The results demonstrate that incorporating hydrophilic metal-organic frameworks (MOFs) can improve the membrane hydrophilicity and create hydrophilic nanochannels, and is an effective strategy to enhance EDCs removal by nanofiltration.
研究领域:
环境科学
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水处理
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材料科学
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化学工程
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DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2023
·
IF 9.5
Haojie Zeng,Feiyun Sun,Jianjun Zhang,Ying Wang,Songwen Yang,Dingyu Xing
Polyvinyl alcohol (PVA) has been employed and crosslinked as the selective layer of NF membranes with enhanced hydrophilicity. However, the influences of different crosslinking methods and agents on the reaction mechanism and membrane performance still need to be comprehensively studied. In this study, NF membranes were prepared by coating crosslinking (CC-membrane) and gradient crosslinking (GC-membrane) methods. Compared with CC-membrane, the GC-membrane possessed a 65% higher flux with Na 2 SO 4 rejection around 90%, under the optimal preparation conditions with PVA content of 0.10%, curing at 80 °C for 10 min. Crosslinking agents including 1,3,5-benzenetricarboxylic acid (TMA), 4,4′-(hexafluoroisopropylidene) diphthalic anhydride (6FDA) and pyromellitic dianhydride (PMDA) with different spatial structure were used to optimize the GC-membrane. As confirmed by SEM, XPS, FTIR and contact angle tests, the 6FDA-GC membrane showed a thinner, smoother and more hydrophilic selective layer, and kept an excellent balance between the water flux (88.6 L/m 2 h) and Na 2 SO 4 rejection (88.7%). This is because the 6FDA with a large molecule and flexible spatial structure could form a more integrated crosslinking structure compared to PMDA. Meanwhile, the 6FDA-GC membrane showed rejections of over 80% towards the endocrine-disrupting compound 17α-Ethinylestradiol and exhibited stable antifouling ability and durability. Overall, this work studied systematically the influences of various crosslinking agents on the GC-membrane, and verified the potential of hydrophilic PVA membranes for nanofiltration.
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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膜技术
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高影响因子
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
·
2020
·Vol. 105
·期 6
·882-891
·
IF 1.657
Shen Jian,Li Xueying,Wang Xinze,Feng Jimeng,He Xiaojuan,Jiang Shiyi,Zhou Ailing,Ouyang Xiaoyan
On-site sampling analysis and laboratory-scale experiments were conducted to study the pollution status and release potential of EDCs in Erhai Lake. We found that nitrogen and phosphorus pollution in Erhai Lake sediment were both at a high level, as well as EDCs pollution. The concentrations of BPA, E2α, E1, E2β, EE2, and E3 were 36.84 ng/g(DW), 13.04 ng/g(DW), 128.97 ng/g(DW), 52.57 ng/g(DW), 18.48 ng/g(DW) and 5.36 ng/g(DW), respectively. The concentrations of E2α, E1, E2β and EE2 in the bottom water were higher than the surface water due to the impact of sediment release. The results of the 20 days release test indicated that BPA release from the sediment had a greater correlation with the original concentration and the particle size of sediment, while the steroid EDCs had no obvious correlation with these two factors, probably due to the difference in hydrophobicity between them. Under hydraulic disturbance and aerobic conditions, the release process of EDCs was accompanied by a large amount of microbial degradation, and degradation amount > released amount. BPA was released quickly, 9.56% was released in 20 days, but only 3.37% of steroid EDCs released. In comparison, the release process of steroids was longer and posed a greater threat to aquatic ecology.
研究领域:
环境科学
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生态学
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DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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2023
·Vol. 30
·期 16
·48248-48259
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IF 5.8
Pan Zewen,Tang Changyuan,Cao Yingjie,Xuan Yingxue,Zhou Qianyi
The sources and distribution characteristics of three phenolic endocrine-disrupting compounds (EDCs), e.g., alkylphenols (APs) (including nonylphenols (NPs) and 4-t-octylphenol (OP)) and Bisphenol A (BPA), were investigated in the rivers of the Pearl River Delta Region (PRDR) with complex land-use types. The mean concentrations of NPs, OP, and BPA in river water including wet and dry seasons were 87, 6, and 74 ng/L in the agricultural regions ( n = 10), 135, 7, and 61 ng/L in the transitional regions ( n = 8), and 249, 15, and 152 ng/L in the urban regions ( n = 28). Contents of NPs and BPA were high in the river sediments (ranged from 7 to 3048 ng/g and 2 to 271 ng/g, respectively). Equilibrium analysis results suggested that sediment release was not the main source of the river EDCs. Principal component analysis (PCA) showed that sewage was the major source of EDCs in the dry season, while the leaching effect of rainfall on the agricultural soils, urban roads, and commercial products was an important source in the wet season. Furthermore, the ratio of APs and total concentration of phenolic EDCs (ΣEDCs) was used to characterize the agricultural regions and urban regions in the PRDR. The ratio was less than 0.6 in the agricultural regions while the ratio was large than 0.6 in the dry season and less than 0.6 in the wet season in urban regions. BPA and NPs in transitional region and urban region had small/medium potential risk to aquatic organisms.
研究领域:
环境科学
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化学工程
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水资源管理
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生态毒理学
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PubMed
高影响因子
Sustainability
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2023
·Vol. 15
·期 11
·8583
·
IF 3.9
Zewen Pan,Rui Wang,Jun Wei,Yingjie Cao
Compound-specific stable isotope analysis (CSIA) is an efficient method for source apportionment and the identification of the transformation process in organic compounds. However, most studies of CSIA are still limited to laboratory experiments. Few studies used have CSIA in an in situ environment due to the complexity of environmental samples. Therefore, a purification method for analyzing the carbon isotope ratios of three phenolic endocrine disrupting compounds (EDCs) (nonylphenols (NPs), octylphenol (OP), and bisphenol A(BPA)) in sediment and water samples was developed in this study. The silica gel column was used to isolate EDCs from complex matrices with multiple organic solvents. Gas chromatography/mass spectrometry was used to quantify the targeted EDCs and analyze the purity of the extracts in full-scan mode. The interfering peaks disappeared, the baseline was sharply reduced, and all the target compounds appeared as single peaks in the chromatogram after purification. Analyzing the standard samples with known isotope ratios showed that the purification treatment did not cause isotope fractionation. The isotopic difference before and after purification was less than 0.04. The method was successfully used to analyze the isotope composition of BPA, OP, and NPs in river water and sediments in the Guangzhou River, Pearl River Delta, South China. Sewage discharge significantly affected the carbon isotope values of BPA, OP and NPs in Guangzhou rivers, suggesting that sewage discharge is the main source of EDCs in the Guangzhou rivers. There is a significant correlation between the isotopic values and concentrations of OP and NPs in sediments, indicating that they may undergo chemical transformation.Keywords:purification method;endocrine disrupting compounds;compound-specific stable isotope;environmental samples
研究领域:
环境科学
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分析化学
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同位素地球化学
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高影响因子
BIORESOURCE TECHNOLOGY
·
2026
·
IF 8.2
Ding Wang,Chenghai Yan,Haifei Zhang,Zhiang Zhang,Richard Ansah Herman,Tao Peng,Luchan Gong,Maryen Alberto Vazquez,Jun Wang
A novel biofilm catalyst with cell surface-anchored laccase was developed for EDCs degradation. • The novel biofilm catalysts efficiently degrade estrone, bisphenol A, and 2,4-dichlorophenol. • The degradation efficiency of EDCs using the biofilm catalysts in 30 min were 81.7–93.2%. • The pH stability, thermal stability, and catalysis reusability of biofilm catalysts were improved. • The developed biofilm catalysts are efficient for EDCs biodegradation in wastewater treatment. Endocrine-disrupting chemicals (EDCs) are considered a highly heterogeneous and persistent class. However, the biodegradation of such compounds is limited by poor stability, low substrate mass transfer efficiency, and low reusability. This study explores a novel engineered biofilm catalyst that integrates bacterial cell-surface display to efficiently degrade EDCs. Under the optimized catalytic conditions, the degradation efficiency of estrone (E1), bisphenol A (BPA), and 2,4-dichlorophenol (2,4-DCP) reached 93.2%, 91.8%, and 81.7%, respectively, within 30 min. Compared to the surface-displayed laccase whole cell catalyst, the catalytic efficiency of the surface-displayed laccase biofilm increased by 22.5%, 15.8%, and 23.7%. The biofilm catalyst showed excellent stability, maintaining over 40% activity across a pH range of 3–7, 97% activity at 60 °C, and retaining 50% efficiency after 7 cycles. These findings demonstrate that the biofilm catalyst is an effective approach to enhancing degradation efficiency, providing a scalable, environmentally benign strategy for advanced wastewater treatment. Download: Download high-res image (158KB) Download: Download full-size image
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PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Jiao Ma,Xiaochun Liu,Xuelin Dong,Hong Wang,Kaide Ou,Xin Cong,Yajiang Yang,Huabin Xiong
This study presents a novel "all-in-one" luminescence sensor array based on a dual-metal organic framework Ga-Tb MOF (GMT) that combines dual luminescence centers to produce six distinct emission channels. The sensor displays unique luminescence fingerprint responses to various endocrine-disrupting chemicals (EDCs) and pesticides through multiple mechanisms, including inner filter effect, antenna effect, photoinduced electron transfer, and competitive coordination. By applying machine learning algorithms, the system achieves high-accuracy identification of 21 pollutants with 93.7% recognition accuracy in real lake water and complete discrimination (100%) of binary mixtures. Quantitative detection using random forest regression (RFR) shows excellent performance (R² > 0.99, LODs as low as 0.07 mg/L, recoveries of 98.8-99.6%) with remarkable anti-interference capabilities in complex matrices. This work offers an efficient and practical approach for the simultaneous detection of multiple pollutant types, highlighting significant potential for environmental monitoring applications.
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DOI
高影响因子
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
·
2023
·Vol. 104
·期 1
·257-265
·
IF 4.1
Jie Zhao,Zi-Yu Li,Chun-Xu Yang,Ya-Ping Li,Yu-Shen Liu,Zhen Hua Hu,Xiao-Ming Pan,Xiu-Li Ma,Wei Wang,Xiao-Shuai Yang,Lu-Liang Wang
BACKGROUND Phenolic endocrine-disrupting chemicals (EDCs) are widespread and easily ingested through the food chain. They pose a serious threat to human health. Magnetic solid-phase extraction (MSPE) is an effective sample pre-treatment technology to determine traces of phenolic EDCs. RESULTS Magnetic covalent organic framework (COF) (Fe 3 O 4 @COF) nanospheres were prepared and characterized. The efficient and selective extraction of phenolic EDCs relies on a large specific surface and the inherent porosity of COFs and hydrogen bonding, π–π, and hydrophobic interactions between COF shells and phenolic EDCs. Under optimal conditions, the proposed magnetic solid-phase extraction-high-performance liquid chromatography–ultra violet (MSPE-HPLC-UV) based on the metallic covalent organic framework method for phenolic EDCs shows good linearities (0.002–6 μg mL −1 ), with R 2 of 0.995 or higher, and low limits of detection (6–1.200 ng mL −1 ). CONCLUSION Magnetic covalent organic frameworks (Fe 3 O 4 @COFs) with good MSPE performance for phenolic EDCs were synthesized by the solvothermal method. The magnetic covalent organic framework-based MSPE-HPLC-UV method was applied successfully to determine phenolic EDCs in beverage and water samples with satisfactory recoveries (90.200%–123%) and relative standard deviations (2.100%–12.100%). © 2023 Society of Chemical Industry.
研究领域:
环境科学
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分析化学
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材料科学
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产品关联
DOI
PubMed
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2020
·
IF 6.551
Wenjing Zong,Zhaoming Guo,Minghuo Wu,Xianliang Yi,Hao Zhou,Siyuan Jing,Jingjing Zhan,Lifen Liu,Yang Liu
Endocrine-disrupting chemicals (EDCs) cause serious threats to human health. Five types of MnO 2 were synthesized and characterized. They exhibited different removal performances for three EDCs, i.e., estrone (E1), ethynylestradiol (EE2) and bisphenol A (BPA). Only δ-MnO 2 can completely remove E1 within 120 min at pH 3.0. Free Mn (III) was determined at the beginning of the reaction and participated in the EDCs removal process. Electron spin resonance (ESR) indicated that δ-MnO 2 could produce superoxide anions (·O 2 − ) and singlet oxygen ( 1 O 2 ) in the existence of methanol. The reactive oxygen species (ROS) quenching experiments showed 1 O 2 have certain contribution to the E1 removal by δ-MnO 2 . The source of ROS is mainly the lattice oxygen from δ-MnO 2 , and can be replenished through the layer structure destruction caused by the reaction between Mn(III) and E1. The ROS dependent EDCs removal by δ-MnO 2 leads to a deep understanding on this well-known oxidant.
研究领域:
环境科学
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化学工程
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水处理
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DOI
PubMed
高影响因子
Frontiers of Environmental Science & Engineering
·
2021
·Vol. 16
·期 4
·1-13
·
IF 4.357
Dai Ruobin,Han Hongyi,Zhu Yuting,Wang Xi,Wang Zhiwei
Metal organic framework (MOF) incorporated thin-film nanocomposite (TFN) membranes have the potential to enhance the removal of endocrine disrupting compounds (EDCs). In MOF-TFN membranes, water transport nanochannels include (i) pores of polyamide layer, (ii) pores in MOFs and (iii) channels around MOFs (polyamide-MOF interface). However, information on how to tune the nanochannels to enhance EDCs rejection is scarce, impeding the refinement of TFN membranes toward efficient removal of EDCs. In this study, by changing the polyamide properties, the water transport nanochannels could be confined primarily in pores of MOFs when the polyamide layer became dense. Interestingly, the improved rejection of EDCs was dependent on the water transport channels of the TFN membrane. At low monomer concentration (i.e., loose polyamide structure), the hydrophilic nanochannels of MIL-101(Cr) in the polyamide layer could not dominate the membrane separation performance, and hence the extent of improvement in EDCs rejection was relatively low. In contrast, at high monomer concentration (i.e., dense polyamide structure), the hydrophilic nanochannels of MIL-101(Cr) were responsible for the selective removal of hydrophobic EDCs, demonstrating that the manipulation of water transport nanochannels in the TFN membrane could successfully overcome the permeability and EDCs rejection trade-off. Our results highlight the potential of tuning primary selective nanochannels of MOF-TFN membranes for the efficient removal of EDCs.
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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水处理
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DOI
高影响因子
TALANTA
·
2020
·
IF 5.339
Minghuo Wu,Enming Miao,Wenxue Xu,Weiping Xu,Yufeng Hu,Jingjing Zhan,Hao Zhou
Estrogens distribute widely in the environment as endocrine-disrupting chemicals (EDCs), which have to be monitored to evaluate their environmental impact. Aim to improve the analytical throughput of liquid chromatography-high resolution mass spectrometry (LC-HRMS), a quadruplex stable isotope dansylation method was developed, with which three real samples could be quantitatively analyzed in one injection. As the estrogens were at trace level in complex matrices, magnetic solid-phase extraction (MSPE) was applied to enrich these analytes and remove the interfaces. By integrating MSPE and quadruplex stable isotope dansylation, a solid-phase quadruplex labeling method was developed for the LC-HRMS analysis of estrogen analogues . For the tested seven estrogens, the developed method showed low detection limits (0.1–0.5 ng/L for pond water and 0.01–0.05 μg/kg for poultry manure), good precision (RSD < 5.5%) and accuracy (96.8–108.3%). The method was applied in the determination of estrogens in environmental samples, and the results revealed that all the tested estrogens were present in the estuary water (unquantifiable to 71.2 ng/L) and chicken manure (undetectable to 25.43 μg/kg).
研究领域:
环境科学
·
分析化学
·
环境监测
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DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Xiao-Kang Fu,Si-Qi Han,Xiao-Bo Zhao,Jing-Yan Kang,Wei Ha,Yan-Ping Shi
Steroid hormone residues in food are a significant sources of endocrine disrupting chemicals (EDCs) that can adversely affect public health. However, the current analytical methods for determining steroid hormones using liquid chromatography-tandem mass spectrometry (LC-MS/MS) can be challenging due to the poor ionization efficiency of steroid hormones and the matrix effect of complex food samples. Herein, based on Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction and stable isotope labeling (SIL) technique, a novel pair of chemoselective probes ABI / d 5 -ABI was precisely designed and synthesized. This pair of probes comprises a H/D isotope tag, a linker, a reactive site azido group (N 3 ) and a MS tag (imidazolium salt). The probe ABI was employed to label ethynyl-containing steroid hormones in real samples and d 5 -ABI was applied to label standards, respectively, followed by mixing the two labeled samples for high performance (HP)LC-MS/MS analysis. It was found that the ionization efficiencies of target analytes were increased by 17–4532 folds after ABI labeling. More importantly, the heavy labeled samples serving as internal standards (ISs) can effectively compensate matrix effect during HPLC-MS/MS analysis. Finally, the proposed SIL-HPLC-MS/MS method was successfully used to highly sensitive determine four synthetic steroid hormones in food samples (milk, pork and egg). Furthermore, the good detection limits (0.015–0.020 ng/mL), satisfactory recoveries (75.7–122.9 %), and precisions (RSDs less than 9.2 %) were obtained. Hence, the established method not only provides new insights in designing SIL probes for determination of ethynyl-containing analytes within complex matrix, but also extends the application of CuAAC reaction in the field of food chemistry.
研究领域:
分析化学
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食品科学
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质谱技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）