JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Huijia Jin,Qian Liu,Matin Naghizadeh,Li Guan,Sheying Dong,Tinglin Huang
The degradation of antibiotics in wastewater poses a critical environmental challenge, necessitating the development of advanced photocatalysts capable of efficiently generating active species. Hence, a novel Zn 3 In 2 S 6 /Bi 3 O 4 Br (ZB) heterojunction enriched with oxygen vacancies (OVs) was designed. The optimized ZB-1 (mass percentage of Bi 3 O 4 Br to Zn 3 In 2 S 6 = 1 %) exhibited the highest nitrofurazone (NFZ) degradation rate constant ( k ) of 0.24 min −1 after 20 min illumination, which was 6.6 and 26.3 folds of the original Zn 3 In 2 S 6 and Bi 3 O 4 Br, respectively. ZB-1 also demonstrated excellent cycling durability and resistance to pH fluctuation. The OVs potentiated O 2 adsorption and drew the photogenerated electrons for oxygen (O 2 ) activation, thereby enhancing carrier mobility. Furthermore, the constructed heterojunction facilitated light absorption and carrier migration for O 2 activation. The OVs and heterojunctions collaboratively meliorated carrier utilization and active species generation. As a result, abundant superoxide radicals ( O 2 − ) were generated and significantly contributed to eliminating NFZ. Meanwhile, the photocatalytic mechanism was clarified by theoretical calculation. The degradation pathway of NFZ and the biotoxicity of its intermediates were systematically conjectured. This research provides a new perspective for designing efficient, durable, and reproducible photocatalysts, which can help address environmental issues related to antibiotic contamination.
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
PubMed
高影响因子
CHEMICAL PHYSICS LETTERS
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2023
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IF 2.8
Shen Zhang,Yuzhe Li,Chenglu Fan,Jinqi Liu,Yuyu Guo
In this work, copper nanoclusters (Cu NCs) were successfully synthesized through one-pot strategy by protecting of glutathione (GSH) and reducing of ascorbic acid (AA). The probe displayed excellent comprehensive stability and realized the detection of nitrofurazone. Fluorescence of GSH-Cu NCs was quenched by nitrofurazone with good linear relationship of nitrofurazone concentration from 0.5 to 100 μM. Significantly, GSH-Cu NCs showed superior selectivity of nitrofurazone on account of static quenching and inner filter effect (IFE) mechanism. More importantly, recovery experiments of nitrofurazone detection obtained satisfactory results in bovine serum. The sensor provided better detection platform of nitrofurazone with superior fluorescence properties.
研究领域:
分析化学
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生物化学
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食品科学
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DOI
高影响因子
CHEMOSPHERE
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2022
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IF 8.943
Nengwei Ma,Yifan Ru,Mili Weng,Lu Chen,Wenqing Chen,Qizhou Dai
In this study, the catalytic materials of MnO x /γ-Al 2 O 3 , CeO 2 /γ-Al 2 O 3 , and Mn x Ce 1-x O 2 /γ-Al 2 O 3 for catalytic ozonation were synthesized. The catalysts were used in heterogeneous catalytic ozonation of the wastewater containing ntrofurazone (NFZ). The effects of the catalytic ozonation operational factors were systematically evaluated in terms of ozone dosing, catalyst dosing, initial NFZ concentration, and pH. The results showed that the catalytic activity of the Mn x Ce 1-x O 2 /γ-Al 2 O 3 was higher than that of the MnO x /γ-Al 2 O 3 and CeO 2 /γ-Al 2 O 3 . The kinetics analysis revealed that bimetallic loading has a synergistic effect and the mechanism of this effect was investigated in the catalytic ozonation system. The catalysts were characterized by FESEM, EDS, XRD, XPS, IR , and BET. The characteristics of the catalysts revealed that Mn could alter the oxide species on the metal surface and interfere with the formation of CeO 2 crystals, which led to smaller grains, enhanced adsorption oxygen, and greater specific surface area. The Mn x Ce 1-x O 2 /γ-Al 2 O 3 crystals could form a solid solution, which helps higher catalytic activity . This study adds to the understanding of the synergistic mechanism of the loaded Ce–Mn oxide catalysts in the heterogeneous catalytic ozonation system and provides a feasible method for degrading pharmaceutical wastewater.
研究领域:
环境科学
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催化材料
✓ 已验证
DOI
PubMed
高影响因子
TALANTA
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2015
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IF 3.545
Xinrong Guo,Yong Wang,Fangying Wu,Yongnian Ni,Serge Kokot
Tungsten disulfide (WS 2 ) is a two-dimensional transition metal dichalcogenide, which is of particular interest because it has highly anisotropic bonding, which leads to strongly anisotropic electrical and mechanical properties. Thus, in this work, a simple hydrothermal process was developed to produce photoluminescence from WS 2 dots. This was achieved in the presence of sodium tungstate and reduced L -glutathione; the emitted fluorescence produced a quantum yield as high as 0.066. The WS 2 dots and the associated fluorescence were investigated with the use of transmission electron microscopy , atomic force microscopy , X-ray photoelectron spectroscopy, Fourier transform infrared and UV–vis spectroscopies. The WS 2 dots were used as a fluorescent probe to analyze nitrofurazone (NFZ). The associated fluorescence resonance energy transfer (FRET) mechanism was also investigated and the emitted fluorescence was found to be linear in the range of 0.17–166 μmol L −1 with a detection limit of 0.055 μmol L −1 . The proposed method was successfully applied for analysis of NFZ in nasal drops and water samples.
研究领域:
材料科学
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分析化学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICA CHIMICA ACTA
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2017
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IF 4.95
Weiwei Bian,Zhen Liu,Gang Lian,Le Wang,Qilong Wang,Jinhua Zhan
That intense demand for both high sensitivity and high reliability has been a key factor strengthening the surface enhanced Raman spectroscopy (SERS) in the analytical application, particular in the hyphenation with pre-concentration technique. Credible data acquisition and processing is very dependent on the stable and uniform performance of SERS-active substrate. Here, a reliable and uniform ultrathin-layer Au was proposed for protecting the porous Ag fiber (porous Ag@Au) and applied in the solid phase microextraction coupled with SERS. The Au layer was carefully deposited on porous Ag surface to form the uniform film by a galvanic-free displacement reaction. This coating endowed the substrate with high oxidation-resistance under heating and good durability in the atmosphere condition. The extraction and SERS performance of Nitrofurazone and Semicarbazide were investigated on this fiber, the bands at 1350 cm −1 and 1387 cm −1 were selected as the characteristic peaks for quantitative determination , respectively. This robust and sensitive substrate provide the high enhancement factor of 1.3 × 10 6 and low LOD of 5.1 ppb for the extraction and identification of Nitrofurazone compounds. Importantly, this work develops a versatile strategy for rapid detection of prohibited antibiotic and its marker residue in a complex matrix.
研究领域:
分析化学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICA CHIMICA ACTA
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2022
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IF 6.911
Simin Huang,Peipei Zhou,Yufei Hu,Gongke Li,Ling Xia
Nitrofurazone (NFZ) is carcinogenic and mutagenic to human in long-term ingestion, and it is prohibited to be added in food. In this work, a novel triphenylbenzene (TPB) functionalized fluorescent hybrid porous polymers (POSS@TPB) was constructed by using polyhedral oligomeric silsesquioxane (POSS) as the rigid group and TPB as the core unit of high fluorescence. The morphology and physicochemical properties of POSS@TPB were characterized in detail. Moreover, the synergistic effect of inner filter effect and photoinduced electron transfer is verified by experimental and simulation results. After condition optimization, a NFZ analysis method based on POSS@TPB probe was established with a linear range of 0.4–16.5 mg/L and a detection limit of 0.13 mg/L. In addition, the fluorescent probe has good stability, anti-interference and considerable reusability. At the same time, the selective analysis of trace NFZ in aquatic product and cosmetics was carried out with satisfied recoveries of 87%–110.6% and relative standard deviation less than 4.1%. And the results were verified by high-performance liquid chromatography method. Overall, this fluorescence sensor has excellent performance in NFZ analysis, which provides a broad application prospect for the repeatable and selective residue NFZ analysis in aquatic product and cosmetics.
研究领域:
食品安全
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分析化学
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环境科学
✓ 已验证
DOI
高影响因子
BIORESOURCE TECHNOLOGY
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2020
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IF 7.539
Yanping Hou,Guiyun Yuan,Shanming Qin,Lingli Tu,Yimin Yan,Zebin Yu,Hongfei Lin,Yongli Chen,Hongxiang Zhu,Hainong Song,Shuangfei Wang
To further enhance the bio-photoelectrochemical system (BPES) performance for nitrofurazone (NFZ) degradation and current output, the g-C 3 N 4 /CdS photocathode was optimized, and microbial community shift from inoculation to the BPES was analyzed. Results showed that photocathode with g-C 3 N 4 /CdS (mass ratio of 1:9) loading of 7.5 mg/cm 2 exhibited the best performance, with NFZ removal of 83.14% (within 4 h) and current of ~9 mA in the BPES. Proteobacteria accounted for the largest proportion: 66.53% (inoculation), 71.89% (microbial electrolysis cell (MEC) anode), 74.67% (BPES anode) and 57.31% (BPES cathode), respectively. In addition, Geobacter was the most dominant genus in MEC and BPES anode and cathode, which occupied 31.64%, 67.73% and 41.34%, respectively. The microbial compositions of BPES anode and cathode were similar, but different from that of MEC anode. Notably, Rhodopseudomonas , a photosynthetic species, was detected in the BPES. Cognition of microbial community in the BPES is important for advancing its development.
研究领域:
环境科学
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微生物学
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电化学
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水处理
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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）