CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Enxiu Liu,Jing Zhao,Shixuan Wang,Yanzhuo Zhang,Xueting Song,Jinghua Lv,Xiaozhuan Zhang,Jianbiao Peng,Alexandr V. Bildyukevich
N/NS co-doping boosts PAA activation, removing 97.5% sulfonamides in 30 min. • EPR and electrochemistry verify dual-channel degradation dominated by 1 O 2 . • DFT confirms 1 O 2 -induced N-S scission and ring opening mitigate toxicity. • DOM-antibiotic complexation negligibly impacts degradation efficiency. Element-doped biochar has emerged as an effective catalyst for activating peracetic acid (PAA) toward antibiotic degradation. However, the electron transfer processes occurring at the biochar interface remain insufficiently understood. In this study, N-doped biochar (NBC) and N/S co-doped biochar (NSBC) are employed to efficiently degrade sulfonamide antibiotics through PAA activation. Active sites, including pyridinic N, thiophene S, and graphitic defects, synergistically promote PAA activation, preferentially generating singlet oxygen ( 1 O 2 ) accompanied by •OH and O 2 •− . Radical and non-radical pathways operate simultaneously, resulting in an average removal efficiency of 97.45% for the target sulfonamides within 30 min. Quenching experiments, electron paramagnetic resonance, and electrochemical analyses collectively confirm the dual-pathway activation mechanism. Liquid chromatography-mass spectrometry combined with density functional theory calculations reveals that the main transformation pathways involve S N bond cleavage, aromatic ring opening, and hydroxylation reactions. Toxicity prediction and plant growth assays further demonstrate a significant reduction in the overall toxicity of the degradation intermediates. In addition, dissolved organic matter released during the biochar reaction process forms complexes with sulfonamide antibiotics, although these interactions are insufficient to substantially affect antibiotic degradation efficiency. Overall, this study not only elucidates the multi-channel activation mechanism of the NBC/NSBC-PAA system but also provides experimental support for the practical application of biochar-based catalytic systems in water purification. Download: Download high-res image (110KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
Eco-Environment & Health
·
2026
·
IF 13.4
Haibei Li,Mengqiu Chen,Tangping Zhang,Chengyu Jia,Yue Zhao,Tianjiao Chen,Lirong Zheng,Jianwei Zhao,Shuqing Zhou,Danyang Shi,Zhongwei Yang,Dong Yang,Junwen Li,Min Jin
Antibiotic resistance poses considerable risks worldwide due to its threats to human health and ecosystem stability. Notably, aquatic ecosystems are recognized as reservoirs of antibiotic resistance contaminants. Therefore, developing effective strategies to mitigate antibiotic resistance in aquatic environments is urgently required. Herein, a cobalt single-atom–crystalline carbon nitride (Co-CCN) catalyst was fabricated and employed to activate peroxymonosulfate (PMS) for antibiotic-resistant bacteria (ARB) inactivation and antibiotic-resistance genes (ARGs) elimination. Notably, the Co-CCN/PMS system attained approximately 6–7-log inactivation of diverse ARB within 20 min, and ARB membrane disruption was further verified based on cellular morphology imaging and protein leakage measurements. Additionally, the removal efficiency of tetA exceeded a 4-log reduction within 120 min. Electron paramagnetic resonance (EPR) and quenching tests confirmed that the Co-CCN/PMS system generated •OH, SO 4 • − , •O 2 − , and 1 O 2 for highly efficient ARB inactivation and ARG removal. Besides, the Co-CCN/PMS system also demonstrated exceptional environmental robustness and high efficiency for treating real water. Density functional theory (DFT) calculations indicated that single Co atoms adsorb oxygen atoms from PMS via electrostatic interactions, accompanied by electron transfer from Co-CCN to activate PMS. Our findings provide atomic-level insights into PMS activation for mitigating antibiotic resistance in aquatic settings.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DESALINATION
·
2026
·
IF 9.9
Jiaxin Li,Mengxia Tang,Haopeng Wang,Minrui Huang,Xuenan Feng,Yao Wang,Junxia Yin,Peiyun Wei,Yanfeng Wang,Guandao Gao
Ultrasound-driven polytetrafluoroethylene contact-electro-catalysis reduces Cr(VI) to Cr(III). • PTFE contact-electro-catalysis enables generation of e − , •O 2 − , •OH and H 2 O 2 . • The PTFE contact-electro-catalytic system exhibits strong tolerance toward coexisting ions. • Contact-electro-catalysis decreases the biological toxicity of chromium. Efficient conversion of highly toxic hexavalent chromium (Cr(VI)) into low-toxicity trivalent chromium (Cr(III)) is of critical importance for mitigating environmental risks associated with chromium-containing wastewater. Here, we report an ultrasound-driven contact-electro-catalysis (CEC) process using commercial polytetrafluoroethylene (PTFE) as an efficient catalyst for Cr(VI) reduction. The PTFE CEC system achieved >99% Cr(VI) removal within 30 min under ambient conditions, and bioassays with Microcystis aeruginosa and wheat seedlings confirmed a marked decrease in ecotoxicity. Mechanistic studies revealed that PTFE continuously generated energetic electrons, superoxide radicals, and hydrogen peroxide during ultrasonication, which synergistically mediated the selective conversion of Cr(VI) to Cr(III). The system exhibited high tolerance to coexisting ions and maintained >90% removal efficiency in real water samples and > 95% activity after use in 27 cycles. Unlike conventional approaches, this strategy does not require sacrificial agents, engineered catalysts, or a controlled atmosphere. These findings demonstrate ultrasound-driven PTFE CEC is a green and efficient solution for treatment of Cr(VI)-contaminated wastewater. Download: Download high-res image (87KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
PHYSICA B-CONDENSED MATTER
·
2026
·
IF 3.2
Junyu Huang,Di Lin,Wei Li,Bo Wang,Huiyang Xu,Zimo Wang,Yongyi Li,Shuanglong Li,Xiaorui Huang
The PCN/CdS/CdIn 2 S 4 composites exhibit excellent photocatalytic performance for H 2 evolution, H 2 O 2 production and dye degradation. • Spontaneous interfacial band bending drives a dual Z-scheme pathway to preserve highly active photogenerated charge carriers. • The superoxide radicals (.•O 2 − ) is the primary species for both continuous H 2 O 2 generation and rapid pollutant decomposition. Addressing the escalating global energy and environmental crises demands efficient, sustainable, and robust technologies. In this study, a ternary composite PCN/CdS/CdIn 2 S 4 integrating phosphorus-doped carbon nitride (PCN), cadmium sulfide (CdS), and indium cadmium sulfide (CdIn 2 S 4 ) was rationally designed via a multi-step assembly process. The optimized heterojunction exhibits outstanding performance, achieving remarkable H 2 and H 2 O 2 production rates of 7614 and 6873 μmol∙g −1 h −1 , respectively. Additionally, it demonstrates ultra-fast degradation kinetics, mineralizing 99.4% of methyl orange within just 30 min. Mechanistically, spontaneous interfacial band bending drives a dual Z-scheme charge transfer pathway. This specific energy band alignment effectively preserves strongly reducing electrons and highly oxidizing holes while significantly suppressing charge carrier recombination. Furthermore, radical trapping confirms that superoxide radicals (∙O 2 − ) are the pivotal active species, driving a two-step single-electron reduction pathway (O 2 →∙O 2- →H 2 O 2 ) for continuous H 2 O 2 generation, and coupling synergistically with localized holes for rapid organic pollutant decomposition.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Yanqing Qu,Jiahao Li,Xiaoyu Du,Hongge Jia,Jingyu Xu
With the acceleration of industrialization, oily wastewater poses a serious threat to the ecological environment. Membrane separation technology has emerged as a research hotspot due to its advantages of high efficiency and energy savings; however, membrane fouling significantly restricts its long term stable operation. This study introduces a 3D COFs/MXene composite membrane with photocatalytic self–cleaning capability for highly efficient oil–water separation. A well dispersed 3D COFs colloidal dispersion was prepared via oil–oil–water three phase interfacial polymerization, effectively overcoming the dispersion challenges of COFs materials. Ti 3 C 2 T x MXene nanosheets were synthesized using the LiF/HCl etching method. Using intermolecular hydrogen bonding, the two components were ultrasonically assembled, and a COFs/MXene composite membrane was fabricated via vacuum assisted filtration. The membrane exhibits excellent hydrophilicity (water contact angle as low as 54.3°) and underwater oleophobicity (underwater oil contact angle up to 144.9°). Under visible light irradiation, the MXene component generates reactive oxygen species (·O 2 − and ·OH), enabling photocatalytic degradation of oil contaminants adsorbed on the membrane surface and thereby imparting self–cleaning functionality. Separation performance tests reveal that the composite membrane achieves efficient separation of various oil–in–water emulsions, with a maximum water flux of 1918.9 L m −2 h −1 bar −1 . The flux for n –hexane emulsion increased to 2.1 times that of pure MXene membrane, while maintaining a rejection rate above 98.8%. Moreover, the membrane demonstrates excellent cycling stability and photocatalytic antifouling performance. This research offers a novel strategy for developing self–cleaning separation membranes and holds promising potential for application in oily wastewater treatment.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Jie Ding,Jing Zhang,Boxia Liu,Yuyu Wang,Dongxu Han,Yeqiong Huang,Chuhan Xing,Zhi Song
MnFe-O activates PMS to remove 99.34% phenol within 30 min. • Oxygen vacancies regulate Mn-Fe dual-site electronic coupling. • MnFe-O shows higher Fe 2+ and Mn 3+ contents for rapid redox cycling. • O 2 •− / 1 O 2 -coupled pathways dominate phenol oxidation in MnFe-O/PMS. • MnFe-O/PMS maintains high activity in diverse real water matrices. Peroxymonosulfate (PMS) activation technology has significant application potential in the removal of phenolic pollutants, but its catalytic performance is still limited by problems such as insufficient regulation of the electronic structure of active sites and unclear interfacial reaction pathways. This study used MnFe Prussian blue analogue (MnFe-PBA) as a precursor to construct a series of MnFe-X (X = O, S, Se) catalysts through thermal conversion and oxygen vacancy-related defect engineering, and systematically compared the effects of different vacancy types on the PMS-activated degradation performance of phenol. The results showed that the MnFe-O sample, which was jointly regulated by oxygen vacancy-related defects and structural reconstruction, exhibited the best catalytic activity, achieving 99.34% phenol removal within 30 min, with an apparent rate constant as high as 0.20 min −1 , which was significantly better than the MnFe-PBA and S/Se vacancy-regulated samples. XPS analysis showed that the increased proportions of Fe 2+ (77.25%) and Mn 3+ (70.00%) in MnFe-O created a more favorable local electronic environment for electron coupling and redox cycles. EPR and quenching results indicate that •OH, SO 4 •− , O 2 •− and 1 O 2 are generated simultaneously in the system, and an oxidation pathway dominated by O 2 •− / 1 O 2 coupling is ultimately formed. This work reveals the key role of oxygen vacancy-related defects and structural reconstruction in jointly regulating the activation of PMS by Mn-Fe dual sites, providing a new mechanistic basis for defect engineering-driven bimetallic catalyst design and efficient purification of phenolic wastewater. Download: Download high-res image (230KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Bin Wen,Fan Chen,Yi Ran,Dongyun Que,Zhihao Zhang,Youwei Zeng,Yuyuan Yao
Molybdenum disulfide (MoS₂) is a promising inorganic co-catalyst for Fenton processes due to its structural durability and avoidance of secondary organic pollution. However, the conventional 2H-phase MoS₂ suffers from intrinsically low conductivity, severely limiting Fe 3+ reduction in the Fenton reaction. Herein, L-cysteine served as a multifunctional precursor during the preparation of MoS₂, promoting a slow-release sulfur supply, carbon‑nitrogen co-doping, and the prevention of restacking. The carbon and nitrogen co-doped molybdenum disulfide (CN-MoS 2 ) architecture was fabricated via a single-step hydrothermal reaction mediated by sodium molybdate, thiourea, and L-cysteine. Remarkably, benefiting from the introduction of L-cysteine, the resulting CN-MoS 2 exhibited a high 1 T-phase content (68%), abundant sulfur vacancies, and a substantially reduced particle size. CN-MoS 2 accomplished near-complete elimination of carbamazepine (CBZ) within merely 3 min, yielding a prominent apparent rate constant of 0.7111 min −1 , which is a 19-fold kinetic acceleration over thiourea-derived MoS 2 . CN-MoS₂ also exhibited high TOC removal, broad-spectrum degradation, and robust CBZ removal under various water conditions. Additionally, electrochemical analyses further verified that CN-MoS₂ reduced charge-transfer resistance and enriched electron density, thereby facilitating rapid electron shuttling to Fe 3+ . Concurrently, quenching experiments and electron paramagnetic resonance (EPR) diagnostics unambiguously validated SO 4 •- , 1 O 2 and O 2 •- as the driving reactive forces. Moreover, a continuous-flow device incorporating a CN-MoS 2 -based membrane exhibited outstanding performance in wastewater purification. This work offers a new strategy for designing high-activity co-catalysts for advanced oxidation processes.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124130
·
IF 7.5
Xiang Li,Yu Tian,Yalong Xu,Bo Liu,Shi Zhou,Wei Jiang,Chunbo Liu,Guangbo Che
Precisely designing catalyst structures through chemical strategies to achieve non-radical-mediated Fenton-like catalysis for the efficient removal of organic contaminants is of great significance. Herein, a heptazine-porphyrin organic polymer (HPOP) was synthesized via a nucleophilic substitution reaction. Subsequently, a heptazine-porphyrin organic polymer catalyst featuring Co-N 4 sites (HPOP-Co 20 ) was fabricated through a solvothermal method for efficient peroxymonosulfate (PMS) activation. The porphyrin core effectively anchored the Co-N 4 active sites, inducing the generation of singlet oxygen from PMS. The high conjugation of porphyrin and heptazine effectively enhances the charge transport capability of the catalyst. Upon coordination with Co single atoms, the charge distribution of the polymer was reconstructed, facilitating rapid electron transfer to PMS. Compared with the original HPOP, the reaction rate constant of HPOP-Co 20 activating PMS for degrading sulfamethoxazole (SMX) could reach 1.7018 min −1 , which is 92.99 times that of the HPOP/PMS system (0.0183 min −1 ). The non-radical-mediated characteristic enabled HPOP-Co 20 /PMS to achieve efficient degradation across various water bodies, pollutants, anions, and initial pH conditions. The results of phytotoxicity and continuous wastewater treatment experiments indicated that SMX toxicity decreased after degradation, highlighting the practical application potential of this system. This study introduces a controllable substrate structure and a Co-N 4 site catalyst that promote non-radical pathways and enhance its stability and environmental adaptability.
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2026
·
IF 3.4
Liu Xipeng,Wang Zhongjia,Zhou Zhangcai,Xin Guoxiang,Bao Jinxiao,Song Jinling
To address water pollution and limitations of existing photocatalysts, mannitol was used to fabricate tetragonal layered BiOX (X = Cl, Br, I) via a room-temperature precipitation method. Among them, BiOI with nanosheet structure exhibited broader light absorption, enhanced charge separation, and higher surface oxygen vacancies. These advantages enabled BiOI to degrade mixed pollutants (dyes, antibiotics, aromatic compounds) under visible light, achieving over 80% efficiency within 180 min. The main active species were h + and ·O 2 − . BiOI showed excellent recyclability and stability. This simple, eco-friendly synthesis offers great potential for treating complex industrial wastewater.
✓ 已验证
产品关联
DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2026
·
IF 5.2
Lu Sun,Jie Wei,Qing Hu,Xiuquan Xu,Jing Wu,Yaoyao Cao,Yao Zhang,Haoyan Wu
A Fe/V-CN nanozyme with synergistically enhanced POD-like activity was rationally designed. • A sensitive cascade colorimetric platform for detecting gastric cancer-related D-amino acids was successfully constructed. • The assay supports reliable quantification of D-amino acids in complex human saliva matrices. The development of a practical and reliable cascade colorimetric method for detecting D-amino acids (DAAs) provides a promising tool for the prevention and preliminary diagnosis of gastric cancer. Herein, a bimetallic Fe V supported on graphitic carbon nitride (Fe/V-CN) nanozyme was rationally designed and synthesized via a simple annealing strategy. The atomic dispersion of Fe and V species, along with their coexisting multivalent states (Fe 2+ / 3+ , V 4+ / 5+ ) synergistically boosted the intrinsic peroxidase-like (POD) activity to Fe/V-CN, which were characterized by a high substrate affinity ( K m of 0.078 and 0.083 mM for TMB and H 2 O 2 ) and an accelerated catalytic turnover ( V max of 4.94 × 10 −7 and 7.76 × 10 −7 M·s −1 , respectively). Leveraging this improved activity, a cascade colorimetric sensing system was developed by integrating Fe/V-CN with D-amino acid oxidase (DAAO) for the specific detection of DAAs. The platform exhibited favorable analytical performance for D-proline (D-Pro) and D-alanine (D-Ala), offering wide linear ranges of 0–200 μM and 0–160 μM and low detection limits of 0.93 μM and 1.45 μM, respectively, combined with acceptable selectivity against common interferents. For real-sample analysis, the platform was successfully implemented in determine DAAs in human saliva, delivering satisfactory recoveries (95.8–105.7%) and good precision (RSD < 3.5%). This work presented a synergistic Fe/V bimetallic nanozyme and a practical sensing strategy, demonstrating the feasibility of DAAs detection in complex biological matrices. Download: Download high-res image (70KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2026
·
IF 6
Huan Song,Le Song,Fangzhou Wu,Yonglei Xing,Xiaoyong Jin,Fang Wan,Gang Ni
Non-metal doping provides a route to tune metal sites in carbon catalysts for peroxymonosulfate (PMS) activation. Here, a phosphorus-modified N-doped carbon catalyst with an ultralow cobalt loading (Co2-P1-NC; 0.14 wt% Co) was prepared. Under optimized conditions, the Co2-P1-NC/PMS system removed phenol (Ph) within 2.5 min, with an apparent pseudo-first-order rate constant of 2.068 min −1 . Co-free NC and P-NC showed only limited activity, indicating that Co-containing sites account for most of the catalytic enhancement. Quenching tests, electron paramagnetic resonance (EPR), PMSO probing, in situ Raman spectroscopy, electrochemical measurements, and premixing experiments collectively support the coexistence of radical and nonradical routes, with high-valent Co species and interfacial electron transfer making major contributions under the tested conditions. Density functional theory calculations using representative CoN 4 and CoN 3 P models showed that P substitution made PMS adsorption more favorable (from −2.56 to −3.38 eV), whereas the calculated O–O bond length and Bader charge changed only slightly; the adsorption enhancement is therefore attributed mainly to altered geometry and interfacial electronic interactions. P modification also reduced the measured Co leaching concentration from 0.016 to 0.005 mg L −1 . The catalyst rapidly removed several phenolic pollutants, although activity declined during reuse and was inhibited by carbonate and humic acid. These results demonstrate a promising low-Co catalyst design while identifying stability and water-matrix effects as priorities for further development. Download: Download high-res image (308KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Meiting Li,Meili Cui,Chi Zhang,Zhiwei Zhao,Mengjiao Tang,Xuejiao Wang
ZnIn 2 S 4 /WS 2 hybrid exhibits selective RhB photooxidation and electrocatalytic HER. • pH = 2 ZnIn 2 S 4 could thoroughly photobleached RhB via complete mineralization. • S-scheme ZnIn 2 S 4 /WS 2 yielded Rh-110 intermediates via N-de-ethylation. • Strong interfacial interaction of heterojunction reduced ΔG H* and ΔG H2O* . RhB molecules could be selectively photodegraded over bare ZnIn 2 S 4 (advanced oxidation) and ZnIn 2 S 4 /WS 2 heterojunctions (Rh-110 intermediates via N-de-ethylation). Adequate band structure, interface electric field and S-scheme charge transfer pathway generated more • O 2 – radicals with strong reducibility. Thus, the best R = 1:1 ZnIn 2 S 4 /WS 2 one showed ∼ 93.4% of removal efficiency toward RhB within ∼ 20 min of visible light irradiation, and RhB completely transformed into Rh-110 after 5 min of irradiation. Strong interfacial interaction between ZnIn 2 S 4 and WS 2 allowed R = 1:1 ZnIn 2 S 4 /WS 2 electrode with the smallest Tafel slope of ∼ 78.06 mV dec -1 and charge transfer resistance in alkaline KOH electrolyte, which thus enhanced hydrogen evolution reaction (HER) activity and cycling durability of ZnIn 2 S 4 . The first-principle calculations demonstrated that the ZnIn 2 S 4 /WS 2 heterojunction exerts a desirable H* adsorption–desorption kinetic. ZnIn 2 S 4 /WS 2 heterojunction possesses superior dual functionality of selective photooxidation toward RhB and electrocatalytic hydrogen evolution, which is responsible for the S-scheme charge transfer and strong interfacial interaction. The first-principle calculations demonstrated its desirable H* adsorption–desorption kinetic. Download: Download high-res image (150KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）