Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Sha Shi,Jihui Wang,Chunhong Xu,Jie Mao,Yaohui Bai
Carbamazepine (CBZ), a typical pharmaceutical and personal care product (PPCP), has an annual global consumption exceeding several thousand tons. Its molecular structure contains symmetrical nitrogen-containing aromatic heterocycles, which resist degradation by conventional biochemical methods, resulting in persistent aquatic pollution. Integrating photocatalytic processes with Fenton reaction provides a targeted approach for its effective elimination from aquatic systems. However, traditional photo-Fenton systems suffer from inefficient Fe 3+ /Fe 2+ redox cycling due to sluggish Fe³⁺ regeneration and rapid recombination of photogenerated charge carriers. To address these challenges, this study designed a facet-engineered BiVO 4 photocatalyst through selective deposition of FeOx nanoparticles on the electron-rich (010) facets of monoclinic BiVO 4 via hydrothermal and photodeposition methods. The optimized FeOx/BiVO 4 composite exhibited exceptional degradation performance for CBZ, achieving a rate constant of 0.317 min -1 , which is 24-fold higher than that of pristine BiVO 4 . Mechanistic investigations revealed that the selective FeOx deposition not only promoted the valence-state transition of Fe 3+ to Fe 2+ but also enhanced charge carrier separation, thereby establishing a sustainable Fe 3+ /Fe 2+ redox cycle. Electron paramagnetic resonance (EPR) analysis and radical quenching experiments further identified hydroxyl radicals (·OH) as the dominant reactive species. This work provides a paradigm for designing efficient photo-Fenton reaction systems through targeted facet engineering, offering broad implications for the remediation of PPCPs.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
BIOCHEMICAL ENGINEERING JOURNAL
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2016
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IF 2.463
Xiangmin Miao,Zhiyuan Cheng,Zongbing Li,Po Wang
This work described a label-free platform for sensitive cholesterol detection upon the precipitation of cetyltrimethyl ammonium bromide (CTAB) stabilized gold nanoparticles (AuNPs). Modifying with CTAB, the stability of AuNPs was greatly improved compared to conventional used AuNPs, and the surface of them was positively charged, which could effectively adsorb with negatively charged DNA detection probe (DP) based on electrostatic adsorption, and inducing the precipitation of them. Tremendous H 2 O 2 would produce based on the reaction of cholesterol with oxygen by using cholesterol oxidase (ChO x ) as the catalyzer, and followed the happen of Fenton reaction in the presence of Fe 2+ to generate OH , inducing the cleavage of DP into DNA fragments. As a result, the adsorption ability of AuNPs decreased, accompanying with a decrease of AuNPs precipitation. Then, based on detecting the absorption spectra change of AuNPs in supernatant along with the increase of cholesterol concentration, sensitive and simple visual-based cholesterol detection was realized with a detection limit of 335 pM. Such method showed high selectivity for the detection of cholesterol. Moreover, the high stability of such AuNPs in solution that contained salt, protein or other metal ions, making our sensing method have a potential application in bioanalysis.
研究领域:
生物化学
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医学检测
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纳米技术
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DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2022
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IF 24.319
Heng Ye,Shengnan Wang,Yong Wang,Peiting Guo,Liying Wang,Chengke Zhao,Shuqing Chen,Yimai Chen,Hongqi Sun,Shaobin Wang,Xing Ma
Wastewater remediation using micro/nanomotors is a hot topic, and MnO 2 based materials have become fascinating alternatives to rare noble metal-based micro/nanomotors. Herein, we demonstrate facile and large-scale synthesis of Fe-MnO 2 core-shell micromotors for antibiotic pollutant removal. Heat-treatment results in a phase transformation of MnO 2 with formation of iron oxides and partially exfoliates the MnO 2 nanoplate shell structure to promote mobility. The iron-manganese oxide micromotors exhibit an efficient removal of tetracycline antibiotics via a combination of catalytic degradation and adsorptive bubble separation. For the first time, atomic H* was found to participate in the micromotor-assisted degradation process, resulting in optimal Fenton reaction in neutral conditions with a good decontamination performance. Owing to the merits of abundance, magnetic recovery, facile fabrication, good motion, and environmental friendliness, as well as decontamination performance in a wide pH range, these core-shell micromotors demonstrate a promising candidate in practical wastewater treatment .
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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高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2024
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IF 4.3
Lin Shi,Wuyang Gao,Tianfeng Ma,Xiaohua Xu,Huan Wang,Yongchang Lu
Fluorescent copper nanoparticles (CuNPs) was synthesized by one-step chemical reduction method using ascorbic acid (AA) and copper sulfate (CuSO 4 ⋅5H 2 O) as raw materials, which had good water solubility and fluorescence properties. A green, simple and safe CuNPs@Fe 2+ fluorescence probe was developed for the detection of hydrogen peroxide and glucose using Fe 2+ as a bridge. The prepared CuNPs could obtain the maximum fluorescence emission wavelength at 440 nm when the excitation wavelength was 360 nm. The average particle size of CuNPs was 10 nm, which had good photobleach resistance, stability and salt tolerance. The fluorescence intensity was quenched due to electron transfer (ET) process when hydrogen peroxide was added to CuNPs@Fe 2+ system. This result was mainly because Fenton reaction occured between hydrogen peroxide and Fe 2+ , producing hydroxyl free radicals ( OH) and Fe 3+ . Since glucose could be catalyzed by specific glucose oxidase (GOX) to produce H 2 O 2 and corresponding oxidation products, the quantitative analysis of glucose was realized when glucose oxidase was introduced into the CuNPs@Fe 2+ sensor system. Therefore, a novel CuNPs@Fe 2+ fluorescent probe sensor study was constructed to further achieve quantitative detection of H 2 O 2 and glucose. Under the optimized experimental conditions, the linear ranges for H 2 O 2 and glucose were 28.219–171.562 μM and 1.237–75.771 μM, respectively. And the detection limits for H 2 O 2 and glucose were 7.169 μM and 0.540 μM, respectively. In addition, the mechanism of fluorescence probe quenching caused by the interaction between H 2 O 2 and CuNPs@Fe 2+ was also discussed. The proposed sensing system had been applied successfully to the detection of glucose in human serum samples.
研究领域:
生物化学
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分析化学
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DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2018
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IF 11.698
Zhenying Jiang,Lingzhi Wang,Juying Lei,Yongdi Liu,Jinlong Zhang
The application of photo-Fenton process is restricted by the acidic pH and additional hydrogen peroxide (H 2 O 2 ). In order to overcome these drawbacks, a photo-Fenton system of CdS/rGO/Fe 2+ which can perform at natural pH with in situ -generated H 2 O 2 has been successfully developed. Highly efficient photo-Fenton degradation of phenol was achieved under the visible light irradiation via the CdS/rGO/Fe 2+ system. Experimental results showed that phenol could be degraded completely in 1 h at natural pH. The plentiful in situ generation of H 2 O 2 was further proved to act as an important role in phenol degradation with the addition of Fe 2+ . The advantages of degradation at natural pH with in situ -generated H 2 O 2 can provide a new prospective to the environmental-friendly Fenton process.
研究领域:
环境科学
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化学工程
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DOI
高影响因子
Asia-Pacific Journal of Chemical Engineering
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2017
·Vol. 13
·期 1
·e2156
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IF 0.836
Zhengjiang Liu,Huiyan Ma,Juming Liu,Lei Xing,Lin Cheng,Jucai Yang,Baodong Mao,Qiancheng Zhang
In this work, Hangjin2 # clay (HC), a natural iron-contained clay mineral first discovered in Inner Mongolia of China, is found to be able to catalyze the heterogeneous Fenton reaction efficiently upon rational modification. After activation using dilute sulfuric acid, the HC prohibited a significantly enhanced activity for heterogeneous Fenton reaction. Via acid activation process, Fe 2+ /Fe 3+ redox can be introduced on the surface of sulfuric acid-activated Hangjin2 # clay (SHC), and Brønsted acid sites can be also created on the surface of SHC. Furthermore, Brønsted acid sites could effectively promote the generation of •OH for methyl orange (MO) oxidation and facilitate the Fe 3+ /Fe 2+ redox process. Fenton degradation of MO was used to evaluate the effect of acid activation on the catalytic activities of SHC. Experimental results revealed that the high activity of SHC was mainly attributed to the synergetic effect of the abundant acid sites on catalyst surface and the Fe 3+ /Fe 2+ redox process. In addition, quenching studies confirmed that •OH radicals were principally responsible for the degradation of MO. More importantly, MO degradation for 3 consecutive cycles demonstrated SHC exhibited reusable and stable activity.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
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2020
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IF 7.632
Heng Liu,Qiulin Li,Bing-Huan Zhang,Long-Cheng Zhang,Guo-Rong Hou,Maowen Xu,Shu-Juan Bao
Fe–N–C catalysts exhibit promising activity toward the catalytic oxygen reduction reaction (ORR). However, applicability of such catalysts is limited by serious oxidative corrosion via the Fenton reaction. In this feature work, we prepared manganese–nitrogen species by pyrolyzing a bimetal CdMn and P-phenylenediamine organic complex (CdMn–PPD) under different atmospheres for the first time. The experimental results suggest that the carbonized atmosphere deeply affects the graphitization degree, pore structure of carbon, and the formation of Mn–N active sites. Of the three prepared catalysts, Mn@NPC–NH3 exhibited the greatest Mn–N and pyridinic N content and delivered excellent ORR activity (Eonset: 0.95 V, E1/2: 0.83 V). Even more impressive, the Fenton reaction was substantially restrained by this catalyst. Overall, the Mn@NPC–NH3 offers superior stability to that of Fe–N–C catalysts, providing new insight for further explorations of excellent non-noble metal ORR catalysts.
研究领域:
材料科学
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电化学
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DOI
高影响因子
MICROCHEMICAL JOURNAL
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2024
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IF 4.9
Ting Wang,Rong-Fu Huang,Zeqin Chen
Development of simple, sensitive and rapid sensing strategy for DNA damage induced by chemical reagents is urgent demand. In this assay, a Tb 3+ /G-quadruplex fluorescence system was proposed for the sensitive detection of DNA damage induced by Fenton reaction. The specific guanine-rich oligonucleotides can form G-quadruplex induced by Tb 3+ , leading to an enhancement of Tb 3+ emission due to energy transfer from guanine to Tb 3+ . After a DNA damage reaction with Fenton reagents, an obvious fluorescence decrease was observed due to the structure change of Tb 3+ /G-quadruplex. which was also confirmed by polyacrylamide gel electrophoresis and circular dichroism. The Fe 2+ -mediated Fenton reaction with as low as 0.01 μM Fe 2+ and 0.04 μM H 2 O 2 induced oxidative DNA damage can be detected. Additionally, the human 8-oxoguanine DNA glycosylase (hOGG 1) was introduced to amplify DNA oxidation damage, by converting DNA oxidative nucleobases to strand break. Over 30-fold lower detection limit of 0.3 nM Fe 2+ and 1.2 nM H 2 O 2 was achieved. Alternative specific DNA damage or other DNA repair enzymes produced much less fluorescence decrease, demonstrating its good selectivity. It shows the potential to become a universal screening tool for the rapid and sensitive assessment of the genotoxicity of the overwhelming number of chemicals in environment.
研究领域:
生物化学
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分子生物学
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分析化学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Yujun Ju,Hua Li,Ze Wang,Hanwen Liu,Shuhui Huo,Shan Jiang,Sicong Duan,Yonggang Yao,Xiaoquan Lu,Fengjuan Chen
Organic pollutants in wastewater have raised great concerns because of their considerable risk to human health and the ecosystem. Although Fenton reaction of advanced oxidation process represents a promising water treatment strategy. However, continuous consumption and low utilization efficiency of H 2 O 2 limit its practical application. Herein, we propose photocatalytic in-situ production and activation H 2 O 2 at triphase interface to reach excellent removal efficiency for contaminants. The triphase interface configuration allows oxygen rapid diffusion from the air to the surface of photocatalyst and avoids the problem of poor mass transfer of oxygen in solution. Meanwhile, using the Z-type heterojunction MIL-101(Fe)/g−C 3 N 4 as model photocatalysts could largely promote the photo-induced electrons and holes separation efficiency to further improve reaction efficiency. As a result, the triphase photocatalytic system achieved an in-situ H 2 O 2 production rate of 4370 μmol h −1 (greater than5 times higher than the diphase control) and a superior degradation efficiency for organic pollutants (model pollutant: methyl orange, concentration: 10 ppm, 99% removal rate in 130 min, while only 21% in diphase control) with a 17.5 times higher reaction rate constant. Therefore, the triphase photocatalytic system realized the highly efficient degradation of organic pollutants in wastewater by solar-driven, in-situ generation and activation of H 2 O 2 with high catalytic activity and minimized oxygen transport limitation, thus providing a green and sustainable strategy for wastewater treatment and broadly environmental remediation.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
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IF 22.1
Zixuan Zhang,Chenying Zhou,Yiming Sun,Peng Zhou,Yang Liu,Heng Zhang,Ye Du,Chuanshu He,Zhaokun Xiong,Bo Lai
Fenton oxidation technology is a widely-used advanced oxidation technology. However, the generation of hydroxyl radicals is restrained by the sluggish recovery of Fe(II), thus affecting its long-lasting performance for water decontamination. Here, a novel niobium carbide (Nb 2 C) MXene material was applied as a green co-catalyst. Nb 2 C MXene can significantly promote Fenton reactions to produce hydroxyl radicals for degrading dimethyl phthalate (DMP) with high efficiency and high stability for long-term operation, which outperforms than various reported co-catalysts. Meanwhile, the Nb 2 C/Fe(III)/H 2 O 2 system is capable of non-selectively degrading a wide spectrum of refractory pollutants. Mechanism investigation reveals that Nb 2 C MXene as an electron donor can straight reduce Fe(III), meanwhile mediate electron shuttle from Fe(II) to H 2 O 2 to strongly expedite the generation of hydroxyl radicals. In addition, four main degradation routes of DMP were proposed. Therefore, this study offers an updated and valid strategy for the refractory organic pollutants elimination by coupling Nb 2 C MXene and Fenton oxidation.
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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DOI
高影响因子
Journal of Water Process Engineering
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2025
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IF 6.7
Lanyu Qi,Guofeng Ma,Ronghui Kou,Ziyao Wang,Hongling Zhang,Yanhong Yang
The Fenton-like process is a highly efficient and widely applied advanced oxidation technology for degrading organic pollutants under dark conditions. However, its development is limited by low H 2 O 2 utilization, incomplete mineralization, and limited optimal pH range. We developed a CoAl-LDH/porous g-C 3 N 4 catalyst via high-temperature thermal polymerization with NH 4 HCO 3 as a dynamic gas template and urea as a precursor. The reaction rate constant of CoAl-LDH/porous g-C 3 N 4 -H 2 O 2 system for degradation of Rhodamine B is 0.0199 min −1 , which is about 1.58 times that of the CoAl-LDH-H 2 O 2 system. Moreover, the catalyst sustained performance over four cycles and maintained high activity in degrading three different substrates. The high catalytic activity is attributed to the rich porous structure of g-C 3 N 4 , the presence of abundant active sites, and the synergistic interaction between the CoAl-LDH and g-C 3 N 4 , which promotes the generation of ·OH, 1 O 2 , ·O 2 − , facilitating pollutant degradation. This study highlights the potential of this CoAl-LDH/porous g-C 3 N 4 -based Fenton-like system for applications in dye wastewater treatment.
研究领域:
环境科学
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催化材料
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废水处理
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DOI
高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 20
·9528-9538
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IF 9.931
Yali Weng,Zhenzhang Weng,Zhiyu Liang,Haixia Lyu,Zanyong Zhuang,Yan Yu
Intricate Fenton-like catalysts composed of mixed transition metal oxides (TMOs) frequently outperform simple TMOs in scavenging organic contaminants in wastewater. Nonetheless, their activity and/or reusability may sharply decline when abundant heavy metal ions in wastewater adsorb on the catalytic surface and passivate it. This study shows that mesoporous Ca–Mn mixed oxides prepared from a facile combination of Mn and an alkaline earth metal (i.e., Ca) (denoted as CaMnx) can readily overcome this problem. CaMnx without any additive (e.g., H2O2) was able to degrade organic contaminants (e.g., indigo carmine as a model contaminant) fast within 10 seconds, outperforming many other reported heterogeneous Fenton catalysts. Besides organics, the coexisting heavy metal ions (e.g., Cu2+ and Pb2+ as indicators) were also rapidly extracted. The outstanding performance was attributed to the synergy of Ca and Mn. CaO in CaMnx efficiently extracted metal ions via an ion exchange process, and MnOx generated abundant H2O2 and degraded the organics through an uncommon Fenton-like reaction. Therein, Cu species extracted by CaO catalyzed the decomposition of H2O2 into HO˙ radicals, speeding up the degradation reaction of the organics by 81 times. Benefiting from the gradual exposure of fresh Mn-sites protected by unreacted CaO, CaMnx without regeneration treatment maintained high efficiency in scavenging organics and heavy metal ions in cycling tests. CaMnx also showed great promise in treating complex water samples containing various heavy metal ions (e.g., Pb2+, Cu2+, Cd2+, Ag+, Zn2+ and Cr3+) and organic pollutants. The findings of this work enrich the rational design of related functional nanomaterials.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
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