Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Ning Chen,Jun Han,Xingchen He,Junhui Shao,Najun Li,Dongyun Chen,Jianmei Lu
Efficient and recyclable piezocatalysts are expected to use natural mechanical energy to degrade organic pollutants in water during piezoelectric degradation. Herein, flexible piezocatalytic membrane (HPVDF/Ti 3 C 2 ) was obtained by introducing Ti 3 C 2 nanosheets into PVDF with further hydrophilic modification. Polar functional groups on the Ti 3 C 2 surface interact with PVDF chains to form the high piezoelectric β-phase. The good conductivity of Ti 3 C 2 contributes to enhanced electron transport in PVDF/Ti 3 C 2 . The hydrophilic and porous HPVDF/Ti 3 C 2 composite membranes facilitate the abundant adsorption and catalytic sites. Thus, HPVDF/Ti 3 C 2 degraded BPA in water under ultrasonic vibration at a rate constant 29.5 times higher than that of the pure PVDF. Furthermore, HPVDF/Ti 3 C 2 membranes coated on stainless steel packing in filled column were found to be effective in the removal of bisphenol A (BPA) under conditions of peristaltic pump-driven water flow, thus providing a promising piezoelectric membrane for water purification using low-frequency mechanical energy from nature.
研究领域:
环境科学
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材料科学
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纳米技术
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水净化技术
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电化学
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高分子科学
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催化作用
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2018
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IF 11.698
Yanping Zhu,Runliang Zhu,Lixia Yan,Haoyang Fu,Yunfei Xi,Huijun Zhou,Gangqiang Zhu,Jianxi Zhu,Hongping He
Herein, we have reported an effective strategy to solve the rate-limiting step in a heterogeneous Fenton reaction, i.e., the generation of Fe(II) from Fe(III), which also inevitably consumes a large amount of H 2 O 2 . For the first time, a novel heterogeneous photo-Fenton catalyst - Ag/AgBr/ferrihydrite (Ag/AgBr/Fh) was successfully developed by combing AgBr with ferrihydrite (Fh) and then in-situ generating Ag nanoparticles on the surface of AgBr/Fh. This strategy can introduce photo-generated electrons from semiconductor-based plasmonic photocatalysts to heterogeneous Fenton catalysts and significantly increase the efficiency to degrade contaminants. The presence of both AgBr and Ag nanoparticles was proved by a combination of structural characterization studies (i.e., XRD, SEM, TEM, and XPS). Under visible light irradiation, the generated Fe(II) on the samples and the degradation rate constants of bisphenol A (BPA) followed the same order: Ag/AgBr/Fh > AgBr/Fh > Fh, which could be attributed to the accelerated reduction of Fe(III) to Fe(II) by the photo-generated electrons from AgBr and Ag nanoparticles, and also profit from the strong electron trapping ability of Ag nanoparticles in separating the electron-hole pairs of AgBr. The Ag/AgBr/Fh system could produce more hydroxyl radicals (•OH), and its catalytic performance was less affected by decreasing H 2 O 2 concentration, which suggested a more efficient utilization of H 2 O 2 . The Ag/AgBr/Fh system exhibits relatively high photo-Fenton reactivity even at neutral pH. In addition, a much lower Fe 3+ dissolution indicates that a large portion of the contribution is from the direct heterogeneous Fenton reaction in this system.
研究领域:
环境科学
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催化
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光化学
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水处理
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DOI
高影响因子
APPLIED SURFACE SCIENCE
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2024
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IF 6.3
Jinyuan Zhang,Tian Shi,Tong Liu,Fuhua Gao,Da Cai,Pingwei Liu,Shenghong Yang,Yueli zhang
Combining upconversion materials with narrow-wide bandgap semiconductors to construct heterostructured composite photocatalysts effectively improves solar energy conversion efficiency. NYF:Ln 3+ (Ln = Yb,Er,Tm)@BiOX(X = Cl,Br,I) heterostructures were prepared by a two-step hydrothermal method. This work explores the effects of different lanthanide ion doping and narrow-wide bandgap bismuth oxyhalides on the performance of the heterostructures system. Under near-infrared (NIR) light irradiation, NYF:Yb,Er,Tm@BiOI degraded 94 % BPA within 160 min. Significantly, compared with NYF:Yb,Er@BiOCl, NYF:Yb,Er@BiOBr and the NYF:Yb,Er,Tm/BiOI mechanical mixtures, the photocatalytic activity of NYF:Yb,Er,Tm@BiOI was increased by 9.4 times, 3.7 times and 1.8 times, respectively. The enhanced photocatalytic activity is attributed to the doping of Er-Tm double-activated ions, which provides multiple upconversion emissions and forms more overlap in the narrow bandgap BiOI absorption spectrum, making it advantageous to utilize upconversion light fully. Eventually, an underlying mechanism was proposed that the existence of FRET in the NYF:Yb,Er,Tm@BiOI heterostructure leads to enhanced photocatalytic activity. This work provides new insights into the design of advanced structures for NIR-responsive photocatalysts.
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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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2026
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IF 10.6
Hang Xu,Wenhui Zhang,Sicheng Zhu,Bingyu Shen,Xinyu Li,Bingqi Jiang,Lianhong Wang,Philippe F.X. Corvini,Max M. Häggblom,Rong Ji
Transformation of bisphenol compounds during nitrogen removal processes in wastewater treatment plants, along with the key microbial taxa associated with this transformation, remains poorly understood. In this study, we examined the transformation of a series of alkylbisphenols (ABPs; bisphenol A, bisphenol E, and bisphenol F) and sulfonylbisphenol (bisphenol S) in an enriched nitrifying activated sludge (NAS). While bisphenol S was persistent in the NAS, the ABPs were effectively transformed; however, 14 C-isotope tracing revealed that the majority of BPA (presumably also other ABPs) was retained in the NAS as transformable intermediates and potentially toxic nitroaromatic compounds, with minor mineralization (< 1 %). In total, nine transformation products were identified, including nitrated aromatic compounds and single-ring phenolic compounds. Ammonia‑oxidizing bacteria (AOB), primarily Nitrosomonas , drove abiotic ABP transformation to persistent nitroaromatic products. Heterotrophic bacteria, such as Sphingomonas , Methyloterena , and Comamonas , initiated ABP transformation via type II ipso- hydroxylation and oxidative cleavage, and also mineralized the intermediates formed through the AOB-mediated dealkylative nitration. By integrating batch experiments, HPLC–QTOF-MS/MS, 14 C-tracing, and 16S rRNA gene sequencing, we provide a comprehensive understanding of these complementary transformation pathways and the key microbial taxa involved. Our findings highlight the significant role of AOB-mediated abiotic reactions in ABP transformation, and alarmingly revealed that the traditional nitrogen removal processes using NAS may produce toxic persistent nitroaromatic compounds, thereby leading to unexpected environmental risks.
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DOI
PubMed
高影响因子
ACS ES&T Water
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2026
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IF 4.5
Jingjing Liu,Liyu Shi,ShuoShuo Mao,Fang Li,Juan Zhou
The remediation of aquatic environments cocontaminated with halogenated organics and phenolic pollutants poses a significant challenge to conventional single-mode treatment technologies. To address this, we engineered a bifunctional Pd–CoFe2O4 catalyst that orchestrates a synergistic reductive–oxidative (R–O) cascade for the simultaneous elimination of monoiodoacetic acid (MIAA) and bisphenol A (BPA). This system operates on a novel converting reduction byproducts into catalytic resources strategy: initially, favorable hydrodeiodization of MIAA occurs on Pd sites using NaBH4 as a hydrogen source, releasing iodide ions (I–). Crucially, rather than persisting as waste, these I– ions serve as in situ mediators that activate peroxymonosulfate (PMS) in the subsequent oxidative stage. The rapidly generated reactive iodine species (RIS, e.g., I•, IO3–) facilitate the ultrafast degradation of BPA within 5 min, significantly outperforming standalone advanced oxidation processes. Mechanistically, the Pd0/Pdn+ species determine the reductive efficiency, while the Co2+/Co3+ redox cycle on the spinel support amplifies PMS activation. Consequently, this integrated R–O system achieves a 67% total organic carbon (TOC) removal efficiency, far exceeding the 17% of the molecular oxidation alone. This work establishes a transformative paradigm for converting reduction byproducts into catalytic assets for the efficient treatment of complex wastewater.
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高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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2026
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IF 1.7
Sun Yubing,Zeng Nalan,Zhu Weiyu,Tang Shuai,Lu Xirui
The combined pollution of radionuclides, heavy metals and organics during uranium mining (i.e., association/coexist with heavy metals) or reprocessing of spent fuel (i.e., organic extraction) has become a prominent issue nowadays. Herein, the synergetic removal mechanism of U(VI), Cr(VI) and bisphenol(BPA) on porous covalent organic framework/graphitic carbon nitride (COF/g-C 3 N 4 ) was investigated using optical, microscopic and spectroscopic techniques. Compared to g-C 3 N 4 (1%), the high photocatalytic reduction (77%) and the excellent stability (90% after 5 recycles) of U(VI) on COF/g-C 3 N 4 could be attributed to the highly efficient separation of photogenerated carrier and wide response range of COF/g-C 3 N 4 under visible light (low band gap of 1.98 eV). In the ternary system, the increased removal of U(VI) on COF/g-C 3 N 4 was due to the consumption of h + by Cr(VI) and BPA, whereas the further increase of Cr(VI) and BPA inhibited U(VI) removal due to the competition of active sites. The interaction mechanism of U(VI) on COF/g-C 3 N 4 was ascribed to superoxide radicals by trapping and XPS analysis. These findings are crucial for the actual application of COF/g-C 3 N 4 on simultaneous removal of radionuclides, heavy metals and organic in complexed systems. Graphical abstract
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高影响因子
Surfaces and Interfaces
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2025
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IF 6.3
Hui Wang,Xuefei Wang,Ju Liu,Junru Li,Hongle An,Xiaodong Wang,Bingchun Xue
In this study, two Cu-doped covalent organic frameworks (Cu@COFs, namely Cu@TpBD and Cu@TpMDA) were successfully synthesized via the solvothermal method to address the challenge of bisphenol A (BPA) removal in aqueous systems. The adsorption behaviors of both Cu@COFs conformed to the pseudo-second-order kinetic model and the Langmuir isotherm model, indicating the monolayer chemisorption as the dominant mechanism. Notably, Cu@TpMDA exhibited a higher adsorption rate and a larger adsorption capacity for BPA compared to Cu@TpBD. This superior performance could be ascribed to the formation of Cu-O coordination bonds, which optimized the pore structure and enhanced the flexible features of Cu@TpMDA. The combination of characterization analyses, adsorption experiments, and density functional theory calculations revealed that the adsorption process was governed by a multi-synergistic adsorption mechanism, involving pore filling, hydrogen bond, π-π stacking, and metal coordination interaction. Remarkably, after five consecutive adsorption-desorption cycles, the BPA removal efficiencies remained over 97 % for Cu@TpMDA and 92 % for Cu@TpBD, confirming their excellent stability and reusability. The constructed coordination-driven flexible Cu@COFs system not only elucidates the structure-property-mechanism relationship, but also provides a theoretical framework for the targeted treatment of organic pollutants in complex aquatic environments.
研究领域:
环境化学
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材料科学
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污染控制工程
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吸附科学
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可持续水处理
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产品关联
DOI
高影响因子
WATER RESEARCH
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2022
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IF 13.4
Jingquan Wang,Min Zheng,Yang Deng,Min Liu,Ying Chen,Naiyun Gao,Erdeng Du,Wenhai Chu,Hongguang Guo
The international campaign to ban bisphenol A (BPA) has resulted in increasing application of BPA substitutes. However, investigations have mainly been confined to the removal of single contaminant from the water, resulting in an inefficient burden. Furthermore, systematic study and synthetical discussion of bisphenol analogues (BPs) kinetics and transformation pathways were largely underemphasized. Chemical oxidation of BPA and four typical alternatives (i.e., bisphenol AF, bisphenol E, bisphenol F and bisphenol S) in a UV-activated persulfate system was examined in this study. The effects of persulfate (PS) dosage, pH and water matrix constituents (i.e., bicarbonate, chloride and natural organic matter) were comprehensively examined using a combination of laboratory experiments and mathematical modeling. According to our findings, the removal characteristics of different BPs employing SO 4 • − -induced removal technology, including degradation mechanisms and influencing trends by water matrix, revealed similarly. The second order-rate constants of SO 4 • – reacting with BPs served as the main variables mediating the variation in degradation kinetics. Frontier molecular orbital theory and density functional theory suggested BPs molecules possessed the same susceptible positions to free radicals. In the UV-activated PS process, transformation pathways included hydroxylation, electron-transfer, substitution, and rearrangement triggered by ortho-cleavage, with certain intermediates exhibiting higher toxicity than the parent chemicals. The findings of this study provided valuable information to estimate potential environmental risks of using BPA alternatives.
研究领域:
环境科学
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化学
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DOI
PubMed
高影响因子
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
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2022
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IF 4.52
Long Zhu,Mingrong Wang,Shuo Fu,Kaiqi Li,Jialin Liu,Zaizhao Wang
Bisphenol A (BPA) is a widely used endocrine disruptor , which has attracted much attention due to its harmful effects on male reproduction. To investigate the interference of BPA on steroid synthesis in males, male rare minnows ( Gobiocypris rarus ) were exposed to 15 μg L −1 BPA for 7, 14 and 21 d. Meanwhile, a positive control group was performed with 25 ng L −1 17α-ethynyl estradiol (EE2). Results showed that BPA exposure induced lower testosterone (T) levels, while affecting the transcripts of steroidogenic gene StAR . Moreover, BPA induced abnormal germ cells proliferation in the testis in rare minnow. Transcriptome analysis showed that 354 transcripts significantly differentially expressed after BPA exposure for 14 d, several of them were enriched in the signaling pathways of cell cycle process, PPAR signaling pathway, the steroid synthesis pathway and estrogen signaling pathway. BPA significantly increased estrogen receptor (ER) levels and induced abnormal protein levels of PPARγ. BPA disrupted the StAR expression by interfering ER enrichments within StAR 5′ flanking region . Additionally, our study also revealed that BPA and EE2 might have different mechanisms for interfering with steroid hormone levels and germ cells proliferation in the testis.
研究领域:
环境科学
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内分泌学
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分子生物学
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生殖生物学
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产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2023
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IF 7.2
Xuecheng Liu,Linjie Yan,Xiting Hu,Hongli Feng,Bingke Guo,Xia Ha,Hui Xu
A facile construction of B and P doped carbon nitride as a potential photo-catalyst for splitting water to generate hydrogen or oxygen and BPA removal under visible light. B and P doping are confirmed by a series of characterizations. As the symmetrical π-conjugated rings of g-C 3 N 4 could be destroyed by B and P doping to enhance the visible-light absorbance and n → π∗ electronic transition to provide a new pathway for the directional separation of photoexcited electrons to boost the photocatalytic activity. Significantly, the CN-BP catalyst demonstrates excellent H 2 and O 2 evolution rates of 4.0 mmol H2 h −1 g −1 and 0.3 mmol O2 h −1 g −1 under visible light, which is about ∼3.8 and 21.6 times higher than that of g-C 3 N 4 , respectively. Notably, without sacrificial agent , the CN-BP could remove BPA completely by oxidation to generate 30 μmol h −1 g −1 H 2 . Both DFT calculations and characteristic results reveal that B and P doped carbon nitride reduce band gap energy , improve light harvesting and separation rate of electron-holes carriers for upgrading the photocatalytic activity.
研究领域:
材料科学
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环境科学
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化学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2023
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IF 15.1
Guojuan Qu,Peng Jia,Tao Zhang,Shuai Tang,Md. Nahid Pervez,Yixiong Pang,Bin Li,Chengjin Cao,Yaping Zhao
Doping nonmetallic heteroatoms into carbonaceous materials is a proven strategy for enhancing peroxymonosulfate (PMS) activation in the degradation of endocrine-disrupting compounds (EDCs). Understanding the role of heteroatom doping defects and intrinsic defects (topological, vacancies, or edge defects) on PMS activation is crucial for designing more efficient carbon catalysts. Herein, we synthesized nitrogen (N) and phosphorus (P) co-doped carbon microspheres (NPCs) through the pyrolysis of aminophosphonic acid resin (D418) precursors and utilized them to activate PMS for bisphenol A (BPA) degradation. The pyrolysis temperature was found to regulate the type and degree of defects, as well as the configuration of N and P. NPC-1000 (pyrolysis temperature at 1000 °C) exhibited the highest reaction rate constant ( k ) (1.20 × 10 −1 min −1 ) with the lowest N and P doping defects and the highest intrinsic defect intensity resulting from the removal of N and P during pyrolysis. Density functional theory (DFT) calculations and correlation analysis between defect sites and k suggest that the adsorption of PMS was facilitated by graphitic N-coordinated C and intrinsic defect sites rather than P doping defect sites, resulting in the degradation of BPA through electron transfer and radical mechanisms, specifically superoxide radicals (O•–2). Excess halide anions led a significant increase of k with only a limited formation of trichloromethane (TCM) (disinfection byproducts) in presence of 100 mM Cl − . This research offers fundamental insights into constructing intrinsic defects through regulating heteroatom configuration, intending to enhance the catalytic activity of metal-free materials.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2024
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IF 8.2
Song Gao,Xinghao Wang,Xinhao Wang,Xiru Chen,Sijia Liang,Ziyan Zhou,Shuxia Xu,Yanfen Fang,Juan Gao,Cheng Gu
Aqueous trivalent manganese [Mn(III)], an important reactive intermediate, is ubiquitous in natural surface water containing humic acid (HA). However, the effect of low-molecular-weight organic acids (LMWOAs) on the formation, stability and reactivity of Mn(III) intermediate is still unknown. In this study, six LMWOAs, including oxalic acid (Oxa), salicylic acid (Sal), catechol (Cat), caffeic acid (Caf), gallic acid (Gal) and ethylene diamine tetraacetic acid (EDTA), were selected to investigate the effects of LMWOAs on the degradation of BPA induced by in situ formed Mn(III)-L in the HA/Mn(II) system under light irradiation. The chromophoric constituents of HA could absorb light radiation and generate superoxide radical to promote the oxidation of Mn(II) to form Mn(III), which was further involved in transformation of BPA. Our results implied that different LMWOAs did significantly impact on Mn(III) production and its degradation of BPA due to their different functional group. EDTA, Oxa and Sal extensively increased the Mn(III) concentration from 50 to 100 μM compared to the system without LMWOAs, following the order of EDTA > Oxa > Sal, and also enhanced the degradation of BPA with the similar patterns. In contrast, Cat, Caf and Gal had an inhibitory effect on the formation of Mn(III), which is likely because they consumed the superoxide radicals generated from irradiated HA, resulting in the inhibition of Mn(II) oxidation and further BPA removal. The product identification and theoretical calculation indicated that a single electron transfer process occurred between Mn(III)-L and BPA, forming BPA radicals and subsequent self-coupling products. Our results demonstrated that the LMWOAs with different structures could alter the cycling process of Mn via complexation and redox reactions, which would provide new implications for the removal of organic pollutants in surface water.
研究领域:
环境科学
·
化学
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）