BIORESOURCE TECHNOLOGY
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2022
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IF 11.889
Shengnan Li,Mingsi Gao,Heng Dong,Yuxin Jiang,Wanting Liang,Jiwei Jiang,Shih-Hsin Ho,Fengxiang Li
The misuse of antibiotics has increased the prevalence of antibiotic resistance genes (ARGs), considered a class of critical environmental contaminants due to their ubiquitous and persistent nature. Previous studies reported the potentiality of bio-electro-Fenton processes for antibiotic removal and ARGs control. However, the production and fate of ARGs in bio-electro-Fenton processes triggered by microbial fuel cells are rare. In this study, the norfloxacin (NFLX) average residual concentrations within two days were 2.02, 6.07 and 14.84 mg/L, and the average removal efficiency of NFLX was 79.8 %, 69.6 % and 62.9 % at the initial antibiotic concentrations of 10, 20 and 40 mg/L, respectively. The most prevalent resistance gene type in all processes was the fluoroquinolone antibiotic gene. Furthermore, Proteobacteria was the dominant ARG-carrying bacteria. Overall, this study can provide theoretical support for the efficient treatment of high antibiotics-contained wastewater by bio-electro-Fenton systems to better control ARGs from the perspective of ecological security.
研究领域:
环境微生物学
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水污染控制
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分子生态学
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环境工程
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抗生素耐药性
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电化学高级氧化
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高影响因子
APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Hezheng Sun,Yi Zhao,Changhui Xin,Hao Yang,Xin Yu,Yajie Tian
As a well-known endocrine disruptor, bisphenol A can be detected in natural waters, and the exploration of high-performance photocatalytic systems for bisphenol A removal is of significance for the sustainable development. In this work, self-doped Nb 3 O 7 (OH) architecture with abundant oxygen vacancies were synthesized using a controllable solvothermal method, while the Nb 3 O 7 (OH)-supported AgIO 3 /AgCl heterojunctions were fabricated by leveraging the residual Cl − ions over the surface Nb 3 O 7 (OH) architecture for the degradation of organic pollutants. Additionally, the proportion of AgIO 3 to AgCl over the Nb 3 O 7 (OH) architecture was adjusted by controlling the dosage of NaIO 3 , leading to the successful fabrication of the AgIO 3 /AgCl/Nb 3 O 7 (OH) composites. The AgIO 3 /AgCl/Nb 3 O 7 (OH)-25 % composite demonstrated the highest photocatalytic performance for bisphenol A degradation, achieving a rate constant of 0.02445 min −1 , which was 5.57 times that that of AgCl, 5.61 times that of Nb 3 O 7 (OH) and 163 times that of AgIO 3 , respectively. The AgIO 3 /AgCl/Nb 3 O 7 (OH)-25 % composite achieved a total organic carbon removal efficiency of 68.16 % for bisphenol A mineralization within 100 min under visible-light irradiation, which underscored the potential of AgIO 3 /AgCl/Nb 3 O 7 (OH) composites as effective photocatalysts for the efficient mineralization of organic pollutants. Finally, a reasonable charge transfer mechanism of the AgIO 3 /AgCl/Nb 3 O 7 (OH) composites for bisphenol A degradation were proposed.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Yinghao Li,Ying Li,Qinglong Meng,Jingyi Zhang,Ke Jing,Qingyu Guan
Oxygen vacancies (OVs) are widely used in photocatalytic H 2 O 2 generation for water remediation, and phosphate is a common ion in natural water. However, the potential mechanism regarding how phosphate influences the photocatalytic performance of OVs remains unclear. The role of phosphate in the photocatalytic H 2 O 2 generation by the OVs and subsequent contaminant degradation during OVs photocatalysis was investigated. Phosphates primarily formed complexes with Bi at OVs, altering the local electronic structure and O 2 adsorption pattern of this active site. This reduced the energy barrier for the formation of reactive oxygen species. The formation of complexes at OVs transforms H 2 O 2 generation pathway changed from two-step one-electron to one-step two-electron, thereby increasing H 2 O 2 generation. The H 2 O 2 product exhibited excellent in-situ pollutant treatment performance. This study provides valuable insights for optimizing environmental remediation strategies by exploring the effect of phosphate on the photocatalytic H 2 O 2 generation.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Zhikun Li,Zhe Zhao,Xi Zhu,Shumin Lin,Jinyu Wang,Shu-Xuan Liang
Fluoroquinolone antibiotics (FQs) are a class of antibiotic pollutants of global concern for water due to their high chemical stability and low biodegradability, leading to long-term residues. In this study, a novel composite material composed of metal-organic framework (MOF) and covalent organic framework (COF), ZIF-8@TpPa-SO 3 H, was designed for the selective adsorption of quinolones and synthesized using ultrasonic method. The adsorption kinetics, isotherms, thermodynamics and influencing factors of ZIF-8@TpPa-SO 3 H towards three FQs, including enoxacin, norfloxacin, and ciprofloxacin, were investigated. Characterized by an abundant pore structure and uniform element distribution, the composite exhibited a specific surface area of 34.25 m²/g and an optimized pore size distribution of 15.72 nm. The adsorption selectivity experiment showed that ZIF-8@TpPa-SO 3 H achieved a removal rate of over 90% for FQs, which was significantly higher than those of other types of antibiotics. The adsorption of FQs on ZIF-8@TpPa-SO 3 H followed the pseudo-second-order kinetic model, and chemisorption was the predominant mechanism. The maximum adsorption capacities for enoxacin, norfloxacin, and ciprofloxacin were 595.4, 566.4, and 568.6 mg/g, respectively. Furthermore, electrostatic interactions and hydrogen bonding were the main adsorption mechanisms. Density functional theory calculations and X-ray photoelectron spectroscopy analysis further confirmed that selective adsorption is synergistically enhanced by electrostatic interactions between piperazine and sulfonic acid groups and C-H⋯π interactions of the FQs. Additionally, the composite maintained a removal rate above 85% after 8 adsorption-desorption cycles, demonstrating its good applicability. It also exhibited satisfactory applicability in treating water samples from different sources. This study provides a theoretical and practical foundation for the development of efficient and recyclable FQ adsorbents.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2026
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IF 4.8
Pei Wu,Yang Jiao,Li Cheng,Cheng Yao,Xiong Chen
A novel near-infrared luminescent fluorescent composite material, TCPP-His@ZIF-8, was successfully constructed. Through an amide condensation reaction, Tetrakis (4-carboxyphenyl) porphyrin (TCPP) was covalently anchored onto the surface of L-histidine (His) -modified ZIF-8 metal-organic framework. This material serves as a highly sensitive near-infrared fluorescence sensing platform. Upon introducing mitoxantrone (MITX) as a fluorescence quencher, the material achieves highly selective and sensitive fluorescence detection of MITX. Mechanistic studies revealed that the fluorescence quenching of TCPP-His@ZIF-8 by MITX involves multiple mechanisms: the shift in absorption peaks confirms the presence of static quenching, while FRET is the primary mechanism responsible for the shortening of fluorescence lifetime, i.e., the dynamic quenching process. The inner filter effect (IFE) contributes partially to the reduction in apparent fluorescence intensity but is not the dominant factor. Under optimal experimental conditions, the sensor exhibits good linearity for MITX detection within the range of 0.125–14.0 μM, with a detection limit as low as 91.93 nM. Anti-interference and selectivity experiments demonstrated that common interferents and antibiotic analogues did not significantly affect detection. Furthermore, spiked recovery experiments in real samples such as tap water, milk, and human serum yielded satisfactory results, validating the reliability and potential of this method for practical applications.
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PubMed
高影响因子
FOOD CHEMISTRY
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2026
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IF 10.4
Jingbin Shi,Hongyuan Guo,Hao Wu,Xuedong Jia,Runying Chai,Yujue Feng,Suozhu Wu
Norfloxacin (NOR) is a fluoroquinolone antibiotic, and its long-term intake poses serious threats to human health. Therefore, sensitive determination of NOR is of great significance. This work develops a molecularly imprinted electrochemical sensor (MIES) for detecting NOR based on molecularly imprinted polypyrrole/carboxylated multi-walled carbon nanotubes-chitosan/glassy carbon electrode (MIP/cMWCNT-CS/GCE). The cMWCNT-CS serves as a conductive layer for signal amplification, while MIP acts as the recognition element for specific identification of NOR. NOR is indirectly detected by the reduction peak current of potassium ferricyanide probe . This MIES exhibits an ultra-wide linear range (1.00 × 10 −13 –1.00 × 10 −5 M) and an ultra-low detection limit (1.78 × 10 −14 M) with rapid response (adsorption time 4 min), high selectivity, and excellent reproducibility. Furthermore, the MIES is successfully applied to determine NOR in honey, milk, and tap water samples with satisfactory recoveries (87.30% ∼ 121.00%). This work provides a promising analytical avenue for rapid and ultrasensitive monitoring of NOR in food and environmental samples.
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PubMed
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BIORESOURCE TECHNOLOGY
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2026
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IF 8.2
Ying Xu,Wei Li,Kun Liu,Ting Xu,Guanhua Wang,Tairan Pang,Chuanling Si
Peroxymonosulfate (PMS) activation via heterogeneous photocatalysis is effective for degrading refractory organic pollutants. However, conventional graphitic carbon nitride (g-C 3 N 4 ) is limited by narrow light absorption and inefficient charge separation. Herein, leveraging the metal-chelating ability of biomass sourced lignin, C, Co co-doped g- C 3 N 4 (LCN-Co) was successfully synthesized with enhanced photocatalytic and PMS activation performance. In the photo-PMS system, LCN-Co exhibited superior degradation of tetracycline hydrochloride (TC), with a rate constant 4.04, 2.90, and 2.35 times higher than MCN, LCN, and MCN-Co. Mechanistic studies revealed that lignin-derived carbon enhanced light harvesting and synergistically promoted charge separation with Co, thereby accelerating reactive oxygen species generation, PMS activation, and the Co 2+ /Co 3+ redox cycle. Moreover, lignin chelation effectively suppressed Co aggregation and leaching, resulting in excellent reusability. This work demonstrates a lignin-enabled dual-regulation strategy for improving light absorption and metal stabilization in g-C 3 N 4 -based photocatalysts.
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PubMed
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ENVIRONMENTAL TECHNOLOGY
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2026
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IF 2.2
Miaomiao Ye,Tingting Yang,Lei Song,Yawei Xie,Fubing Fang,Xiaowei Liu
Peroxymonocarbonate (PMC), a green in situ oxidant formed from the reaction between hydrogen peroxide (H2O2) and bicarbonate (HCO3⁻), has demonstrated promising potential for the degradation of organic pollutants, although its underlying mechanisms remain not fully elucidated. In this study, the degradation efficiency and mechanistic pathways of PMC toward tetracycline (TC) were systematically investigated. Compared to H2O2 alone, PMC exhibited significantly enhanced TC degradation, with a first-order rate constant (k) of 0.0181 min⁻¹, approximately 10 times higher than that of H2O2 alone. Key factors affecting the degradation efficiency, such as anions, cations, pH, humic acid, and different water matrices, were thoroughly examined. Electron paramagnetic resonance (EPR) analysis confirmed the generation of free radicals, while non-radical oxidation pathways were also suggested. Among the reactive oxygen species, ·OH and CO3·⁻ are the primary species driving TC degradation, while ¹O2 and ·O2⁻ act as secondary contributors. Three potential degradation pathways were proposed based on liquid chromatography-mass spectrometry (LC-MS) analysis and density functional theory (DFT) calculations, and the corresponding toxicity predicted using ecological structure-activity relationship (ECOSAR) model. This study provides new insights into the application of environmentally benign oxidants for antibiotic removal and highlights the potential of PMC in water treatment practices.
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PubMed
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CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Borui Yang,Xiaoyan Fu,Ahui Sun,Kaili He,Keli Duan,Hongru Jiang,Jihui Li
Metal-doping has emerged as a powerful tool for upgrading the performance of biochar through the synergistic interaction between biochar and metal species. In this work, a controllable incorporation of iron and molybdenum oxides into biochar was achieved via reflux-assisted oxidation of rice straw with phosphomolybdic acid and ferric nitrate followed by pyrolysis to enhance its adsorption capability for tetracycline and fluoroquinolone antibiotics. Through reflux-assisted oxidation, oxygen-containing functional groups were introduced, enabling effective capture and immobilization of molybdenum/iron species. These species were then transformed into uniformly dispersed iron and molybdenum oxides during pyrolysis. Moreover, abundant oxygen-functional groups were retained, while well-developed porous and graphitic structures were simultaneously generated. The biochar composite exhibited 1781.81 and 202.68 mg/g maximum adsorption capabilities for tetracycline and ciprofloxacin, respectively, surpassing the capacities of individually molybdenum-doped and iron-doped biochars. The synergistic effects of molybdenum/iron oxides, oxygen-functional groups, and graphitic domains significantly enhanced adsorption through combined mechanisms including hydrogen bonding, metal complexation, cation exchange, electrostatic interactions, and electron donor–acceptor interactions. Furthermore, the composite displayed high adsorption capacities for other tetracycline and fluoroquinolone antibiotics as well. The proposed oxidation-mediated method enables simultaneous introduction of oxygen functional groups and homogeneous metal oxide dispersion in biochar, yielding superior adsorption performance.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Bo Shen,Yuxin Hui,Qi Wang,Fei Wang,Derek Hao,Huayue Zhu,Liguo Shen,Hao Du
Photocatalytic three-electron oxygen reduction (3e - ORR) can convert dissolved O 2 into •OH via coupled 2e - /1e - steps, bypassing external H 2 O 2 dosing and the kinetic bottleneck of conventional photo-self-Fenton (PSF) systems. Here, Fe-substituted phosphomolybdate clusters (FePMo) are anchored on a biomass-derived hierarchical tubular carbon (HTCC) to form an HTCC/FePMo heterojunction (HFe) that drives a visible-light self-Fenton process. For tetracycline (TC, 10 mg L −1 ), HFe achieves 99 % removal within 120 min at unadjusted pH 0 = 5.8 ( k obs = 0.026 min −1 ) and 3.6–7.7-fold higher mineralization than either component, while retaining high activity from pH 3–9 and in saline water, natural surface water, and secondary effluent. In a continuous-flow reactor, an HFe/PVDF membrane (0.64 mg cm −2 loading; 2 mL min −1 , HRT 1.23 min) sustains > 90 % TC removal for 120 h. Ecotoxicity is alleviated, with inhibition-zone diameters shrinking from ∼2.3 to ∼0.8 cm ( S. aureus ) and from ∼1.25 to ∼0.7 cm ( E. coli ), and wheat-leaf Fv/Fm recovering to ∼0.73, comparable to the water control. The energy demand is low (EE/O = 0.0031 kWh L −1 ; EE/M = 0.31 kWh g −1 ), supporting a scalable, sustainable route for advanced treatment of refractory wastewater.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 13.2
Quxin Cong,Rui Jia,Juan Zhou,Lei Li,Pin Gao
The disposal of large quantities of oily sludge remains a significant global challenge in terms of resource utilization. In this study, oily sludge was transformed into biochar specifically via a sequential process involving hydrothermal carbonization (HTC) at 250 °C followed by pyrolysis at 800 °C (HTC-250-PY-800). This integrated biochar was comprehensively compared against those produced solely using HTC or pyrolysis. The results showed that HTC-250-PY-800 exhibited a higher density of structural defects and a more highly developed spatial structure. It demonstrated the highest oxygen evolution potential alongside the lowest charge transfer resistance. When employed as a biochar electrode, HTC-250-PY-800 achieved exceptional removal efficiency (98.5%) of norfloxacin within 2 h, significantly outperforming biochars produced from either individual process. Additionally, this integrated biochar maintained robust catalytic performance across a broad pH range (3−11) and retained high degradation efficiency and stability over five continuous cycles. Quenching experiments confirmed that •OH and 1 O₂ collaboratively drove norfloxacin degradation. Based on detailed DFT calculations and UPLC-TOF-MS analyses, potential degradation pathways for norfloxacin were proposed. This study not only provides an effective two-stage strategy for converting waste oily sludge into high-value functional electrode materials, but also highlights the potential of oily-sludge-derived biochar as a sustainable catalyst for degrading emerging pollutants.
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JOURNAL OF MOLECULAR STRUCTURE
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2026
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IF 4.7
Jia-Yu Gu,Xin-Ran Chen,Fei Li,Wen-Ya Ding,Jia Cao,Wei-Wei Ge,Kai Chen
Three new coordination polymers based on cucurbit[5]uril (Q[5]) have been successfully synthesized. Their chemical formulas are {[Ni(H 2 O) 2 (Q[5])]·(1,5-NDS)}·14H 2 O ( 1 ), {[Co(H 2 O) 2 (Q[5])]·(1,5-NDS)}·15H 2 O ( 2 ), and {[Zn(H 2 O) 2 (Q[5])]·(1,5-NDS)}·10H 2 O ( 3 ). These polymers were obtained through the self-assembly of Q[5] with the corresponding transition metal salts in the presence of 1,5-naphthalenedisulfonic acid (1,5-H 2 NDS). Single- crystal X- ray diffraction analysis of these three coordination polymers has unveiled that the deprotonated 1,5-NDS²⁻ anions play a pivotal role in their self - assembly. Within these complexes, 1,5-NDS²⁻ anions facilitate the direct coordination of Ni 2+ /Co 2+ /Zn 2+ with the carbonyl oxygen atoms at the ports of Q[5], leading to the formation of one - dimensional (1D) supramolecular chains. Moreover, the non - covalent interactions among the 1D chains, along with those arising from the interplay between 1,5 - NDS²⁻ anions and the outer surface of Q[5] within the chains, generate a cooperative effect. This cooperative effect, where the combined action of these interactions is more powerful than the simple sum of their individual contributions, drives the further assembly of the 1D chains into a three-dimensional (3D) supramolecular framework featuring specific channel structures. Performance tests reveal that the Q[5]-Ni 2+ -based supramolecular assembly has high selective recognition for the antibiotic norfloxacin (NFX).
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