COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2026
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IF 8.2
Jiaqi Liu,Cuiyan Li,Haibo Ouyang,Tianzhan Shen,Shuai Zhang,Xinnuo Wang,Xinge Niu
Functional ceramic foams are promising candidate materials that integrate electromagnetic absorption, load-bearing, thermal insulation, and thermal stability, to meet the challenges of extreme environments in modern aerospace technology. In this study, SiC fiber has been introduced in the ZrC-TiC ceramic foam to enhance the mechanical properties and electromagnetic wave absorption performance. The SiC f /ZrC-TiC ceramic foam has been fabricated by a simple precursor self-foaming method with a porosity of 76.9% and a density of 0.31 g/cm 3 . The interconnection of SiC fibers endows SiC f /ZrC-TiC ceramic foam with excellent load-bearing capacity with a compressive strength of 41.3 MPa. Meanwhile, the introduction of SiC fiber boost its electromagnetic wave absorption performance with a RL min = −63.5 dB and EAB max = 6.04 GHz. The high porosity endows it with a low thermal conductivity advantage of 0.231 W·m −1 ·K −1 . Particularly, SiC f /ZrC-TiC ceramic foam exhibit outstanding high-temperature stability. After 10 thermal cycles at 1600 °C, the compressive strength remained at 30.7 MPa, and the EAB max was 5.28 GHz (RL min = −57.2 dB). The multifunctional synergistic advantages of SiC f /ZrC-TiC ceramic foams provide a feasible strategy for the design of multifunctional protective materials in aerospace.
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Inorganic Chemistry Frontiers
·
2026
·
IF 6.2
Lei Huang,Xue Zou,Ensi Li,Dongmei Wang,Imran Shakir,Xuping Sun,Zhengjun Gong
Advanced oxidation process of inorganic peroxide activation is regarded as an effective and reliable method for antibiotics removal. In this paper, we report on the development of Fe-O-coordinated porous honeycomb carbon nanofiber (Fe-O-HCNF) as a high-performance catalyst for rapid degradation of tetracycline (TC) by activation of peroxymonosulfate (PMS). The effects of Fe-O-HCNF dose, PMS concentration, and initial pH were systematically investigated. The results showed that such Fe-O-HCNF achieved a high TC degradation efficiency of 84.7% within 15 minutes. Notably, complete TC degradation (100%) was achieved within 8 minutes at an low catalyst dosage of 0.08 g/L. The Fe-O-HCNF possessing exceptionally high specific surface area of 691.501 m²g-1 provides abundant adsorption and activation sites for the degradation reaction, while the introduction of iron is essential for the continuous activation of PMS. The electron paramagnetic resonance and quenching experiments results indicated that, in addition to sulfate (•SO4−) and hydroxyl (•OH), both singlet oxygen (1O2) and superoxide (•O2−) contribute to the degradation of TC. More interestingly, the Fe-O-HCNF /PMS system showed almost no interference in the real water matrices and various initial pH conditions. Importantly, no metal ion leaching was detected in the treated effluent, indicating minimal secondary environmental contamination risks from heavy metal leaching.
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Environmental Progress & Sustainable Energy
·
2026
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IF 2.3
Yingjian Yu,Yulong Li,Jing Zhu,Fang Deng,Menghu Wang,Lie Yang
Antibiotics pose significant risks to human health and ecosystems due to their environmental persistence and high hydrophilicity. In this study, sulfamethoxazole (SMX) was selected as a target contaminant, and a molten copper chloride-modified sludge-derived biochar (Cu-SBC) was developed to activate periodate (PI) for the efficient removal of antibiotics from water. The results indicated that the introduction of copper significantly altered the surface chemistry of the biochar, thereby simultaneously enhancing its adsorption capacity for SMX and its activation performance toward PI. The Cu-SBC/PI system achieved complete degradation of SMX within 50 min and exhibited strong environmental adaptability and good reusability. Quenching experiments and electrochemical analyses revealed that SMX degradation predominantly occurred via a non-radical pathway facilitated by an electron transfer mechanism. Moreover, seed germination tests confirmed the effective detoxification capability of the Cu-SBC/PI system toward SMX degradation. This study provides a novel strategy for designing sludge-based biochar catalysts and offers a promising technical approach for the efficient degradation of antibiotics in aquatic environments.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
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IF 3.9
Bingjie Sun,Pengjun Duan,Yuxin Yu,Jiajun Xie,Xiaozheng Han,Qiaomei Sun,Jianzhong Zheng,Zhaoxiang Zhong
Developing catalysts with superior electron transfer capabilities has emerged as a key challenge in the activation of peroxymonosulfate (PMS). Herein, the morphology and electronic structure of CeO2 catalysts were modulated through Co doping, thereby generating a higher concentration of oxygen vacancies (Ovs) and providing additional active sites for PMS activation. At a Co doping level of 25%, the two-dimensional (2D) nanosheet-structured CeO2 achieved 93.6% degradation of Tetracycline hydrochloride (TC) within 60 min, with a rate constant (k) of 0.042 min–1. Quenching experiments and electron spin resonance (ESR) analyses elucidated the involvement of both radical and nonradical pathways in the TC degradation process. Density functional theory (DFT) calculations demonstrated that Co-doped CeO2 with Ovs not only reduced the energy barrier for PMS activation but also enhanced the generation of reactive radicals. This study offers novel insights and technical support for the treatment of wastewater contaminated with recalcitrant organic pollutants.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Jiangpeng Fu,Xiaoyu Han,Ying Li,Jiayang Ma,Haoyang Cui,Xin Zhao,Wenzheng Yu
The rapid expansion of the mining industry has posed challenges to water purification, as beneficiation wastewater containing persistent organic flotation reagents exhibits low biodegradability, necessitating targeted treatment strategies. Benzohydroxamic acid (BHA), as the most common mineral processing reagent, is difficult to be naturally biodegraded due to its oxime group and benzene ring structure. In this study, electro-Fenton degradation of BHA was performed with a novel electroresponsive bimetallic ferrocene-organic framework cathode (FcDA-Ni-Mn) synthesized through in-situ solvothermal method. The cathode comprises bimetal-doped catalytic centers and sandwich complex structure, exhibiting exceptional synergistic electrocatalytic activity. Driven by a voltage of 2.0 V, an electrically induced oxygen-contact reactor (180 mL) with FcDA-Ni-Mn/NiF achieved >90% BHA degradation (1 mmol/L) at the condition of pH 7.0, 1 mM H 2 O 2 , 50 mM/L Na 2 SO 4 within 60 min, reaching an excellent rate constant of 0.045 min −1 . The cycling and practical wastewater experiments revealed remarkable recyclability and practical applicability of FcDA-Ni-Mn. Mechanistic studies reveal that BHA degradation was primarily mediated by reactive oxygen species (·OH, ·O 2 − and 1 O 2 ), with oxidative cleavage occurring predominantly at the oxime group (N O) and its adjacent C C bond. This study elucidates the electro-degradation mechanism of BHA and demonstrates its potential as an effective technology for treating flotation reagents in aquatic environments.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 21.1
Kaiyang Xu,Lingfeng Weng,Qing Han,Bo Liu,Lizhi Wu,Li Tan,Yihu Dai,Yuanjie Xu,Yu Tang
Cyclopentanone (CPO) as a key raw material has been widely applied in spices, pharmaceuticals, and sustainable fuels. The catalytic conversion of biomass-derived furfural (FAL) to CPO meets the requirements of sustainable development goal but still be challenging because of the relatively low selectivity of CPO in the complex tandem catalytic processes. Herein, a Ni/WO 3 -H 2 catalyst presents a cooperative interface that possesses hetero-valent interface of Ni 0 (metallic) and Ni 2+ (interfacial NiWO 4 ), oxygen vacancies (O v ), and acid sites simultaneously was prepared and applied in the tandem hydrogenative ring-rearrangement of FAL to CPO. Under 160 °C and 3 MPa of initial hydrogen pressure, the catalyst achieved 90.3 % furfural conversion and 96.9 % selectivity to CPO, with a turnover rate of 4.26 mmol·g cat ⁻¹ ·h⁻¹ . Moreover, the Ni/WO 3 -H 2 catalyst demonstrated excellent stability and recyclability. Further investigation on reaction mechanism shows that the synergy of each active site, Ni 0 , Ni 2+ (NiWO 4 ), oxygen vacancies (O v ), and acid sites, promotes the conversion of FAL to CPO and effectively avoids the undesired side reaction. Accordingly, a multi-site cooperative mechanism is proposed: FAL hydrogenates to FOL on Ni 0 sites; acid sites rearrange FOL to HCP, which dehydrates at O v sites to CPE; ultimately, CPE is hydrogenated to CPO on Ni hetero-valent interface.
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ENVIRONMENTAL RESEARCH
·
2026
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IF 7.7
Teng Bao,Cheng long Li,Wei Wei,Mekdimu Mezemir Damtie,Zhijie Chen,Haijiao Xie,Bing-Jie Ni
Antibiotics (e.g., ofloxacin) pollution is an emerging environmental concern due to its persistence and potential health risks. Advanced oxidation processes (AOPs) offer promising solutions, yet their practical application is often limited by catalyst cost and stability. Here, we report the use of natural vivianite—a low-cost iron phosphate mineral—as an efficient peroxymonosulphate (PMS) activator for ofloxacin degradation. Under the optimised conditions, 97 % of ofloxacin was effectively degraded within 60 min. The ofloxacin degradation ratio could still reach 76 % after three consecutive cycles. Mechanistic investigations revealed Mn 2+ and Co 2+ isomorphic substitutions within the vivianite lattice, which induced electron cloud redistribution and promoted the formation of metal–oxygen–metal and metal–oxygen bonds. These structural changes enhanced charge transfer and facilitated PMS adsorption and activation via both surface-bound sites and leached phosphate species. Electron paramagnetic resonance spectroscopy confirmed that degradation proceeded through synergistic radical (·OH, SO 4 · - , O 2 · - ) and non-radical ( 1 O 2 ) pathways. Importantly, the degradation products exhibited significantly lower toxicity than ofloxacin itself, underscoring the environmental relevance of this process. These findings highlight the potential of natural vivianite as a cost-effective and sustainable PMS activator for antibiotic removal in water treatment applications.
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PubMed
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CERAMICS INTERNATIONAL
·
2026
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IF 5.6
Jialong Wu,Zhen Li,Weidong Gu,Xinyan Niu,Yunbo Wang,Ding Huang,Shuangshuang Jiang,Manhong Huang,Jun Li,Guanghui Li
Densification of silicon carbide (SiC) ceramic membrane typically requires sintering temperatures above 2000 °C, resulting in high energy consumption and substantial fabrication costs, and conventional SiC membrane exhibit limited removal efficiency for small molecules. To address these challenges, a co-sintering method was employed to fabricate cobaltic oxide (Co 2 O 3 ) loaded SiC catalytic membrane, with the Co 2 O 3 content systematically optimized. Co 2 O 3 functions as both a sintering temperature-lowering aid and an active site for catalytic ozonation of pollutants. Compared to pure SiC membrane (water permeability: 1200 L m −2 h −1 bar −1 ; flexural strength: 10.5 MPa), the Co@SiC membrane demonstrated significant improvements in both water permeability (1400 L m −2 h −1 bar −1 ) and mechanical strength (13.0 MPa). Numerical simulation further elucidated the neck formation dynamics. Moreover, Co@SiC membrane effectively degrades 95 % Congo red within 20 min, attributed to the generation of superoxide radicals (•O 2 − ). Density functional theory (DFT) calculations illustrated Co sites can effectively absorb ozone molecules and break O-O bond in ozone to generate •O 2 − . Fukui index analysis further indicated •O 2 − tend to attack N=N double bonds in dye molecules. This study proposes a comprehensive understanding of low-temperature sintering behavior and catalytic ozonation performance of Co 2 O 3 modified composite membrane, offering a sustainable strategy for membrane fabrication and wastewater treatment.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Ge Yan,Yuting Wang,Ji Ni,Ying Jiang,Jinping Liang
Value-added utilization of biowastes has been a research hot spot in waste-to-resource field. However, the roles of the self-confined trace elements in biowaste-derived carbon have been frequently neglected. Herein, using mango seeds-derived carbon (MSC) as a proof of concept, the pivotal roles of self-confined trace elements in peroxymonosulfate (PMS) activation toward Rhodamine B (RhB) removal were rectified. The selected mesoporous MSC 1000 (carbonization at 1000 °C), with more than 10 trace elements (Ca, O, K, Mg, Si, Fe, Cu, etc.), had an ultrahigh BET specific surface area of 1903 m 2 /g. It presented outstanding adsorption capacity, which, in combination with remarkable activity for PMS activation, facilitated total RhB removal within 60 min. Quenching experiments, EPR tests and chemical probes collectively revealed that high-valent metal-oxo species, e.g., Fe(IV) O, generated from self-confined trace metal/metal oxides, dominated RhB mineralization. Furthermore, the secondary 1 O 2 was also produced at pyridinic N and graphite N active sites. In addition, MSC 1000 had prominent adaptability to complicated water matrices. Surprisingly, regeneration by recalcination can improve catalyst’s performances. This study help recognize the critical roles of trace components in carbonaceous catalysts in Fenton-like oxidation toward wastewater decontamination.
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JOURNAL OF HAZARDOUS MATERIALS
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2026
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IF 11.3
Xuedong Du,Junjie Chen,Li Feng,Jun Zhao,Hexuan Deng,Ziye Wang,Jufeng Li,Yinan Song,Qingrui Zhang
Biomass-derived non-metallic electrocatalysis offers a sustainable strategy for pollutant degradation; however, its practical implementation is often hindered by unclear activation mechanisms, limited selectivity, and weak catalytic activity. In this study, we developed an innovative approach to transform common biomass waste into amyloid-like fibrils process (ANFs), thereby maximizing the electrocatalytic performance of metal-free manner. The distinctive ultra-high aspect ratio of ANFs facilitates extensive exposure of active sites, while abundant amino acid-derived N/O-doped defects synergistically enhance the three-electron oxygen reduction pathway, enabling efficient generation of reactive oxygen species. When applied to real high-salinity aquaculture wastewater containing tetracycline (TC), the resulting ANF-based catalysts (ANFCs) demonstrated outstanding degradation efficiency (>85 %) across a wide pH range (3–9), achieving a TC oxidation rate three times higher than that of conventional carbon cloth. The ANFCs delivered a catalytic performance of 22.0 g TC g −1 catalyst A −1 h −1 , on par with many metal-based catalysts. Furthermore, compared to traditional electro-Fenton systems, the ANFC-enabled electro-assisted oxidation processes (ANFC-EAOPs) supported continuous treatment of marine aquaculture wastewater while reducing sludge generation by 90 %. A comprehensive life cycle assessment confirmed the system scalability and environmental sustainability, underscoring its potential as a robust, versatile, and metal-free solution for advanced wastewater treatment and diverse application.
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Surfaces and Interfaces
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2026
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IF 6.3
Jianle Wang,Hong Deng,Jiaxin Lv,Li Ma
To overcome mass-transfer limitations in solid–liquid catalytic reactions, a microwave-assisted system was developed based on bimetallic CuFe 2 O 4 spinel for peroxymonosulfate (PMS) activation. The catalyst achieved efficient sulfamethoxazole (SMX) degradation with a remarkable rate constant of 0.36 min −1 , representing an approximately 72 times faster rate than the non-microwave CuFe 2 O 4 /PMS system and superior to most reported analogues. Additionally, the microwave-assisted CuFe 2 O 4 /PMS system demonstrated higher efficiency than the PMS-only, Fe 3 O 4 /PMS, and CoFe 2 O 4 /PMS systems, which confirms the crucial role of Cu in the spinel structure. Quenching tests confirmed that superoxide radicals ( • O 2 − ) generated at the catalyst-solution interface played a dominant role. The system exhibited excellent stability and strong anti-interference ability across a wide pH range (3.0–9.0) and against common inorganic anions (Cl − , SO 4 2− , and HCO 3 − ). Under optimized conditions (1 g ·L −1 catalyst dosage and 700 W microwave power), nearly complete SMX removal was achieved within 20 min. XRD and XPS characterization confirmed that the crystal phase and chemical state of the CuFe 2 O 4 catalyst remained stable before and after the reaction. This study presents an efficient, stable approach for removing antibiotics from water and underscores the potential of microwave-enhanced interface catalysis in advanced oxidation processes.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121376
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IF 7.2
Wei Ren,Xiao-Wen Huang,Dongmei Hou,Zhuoyuan Li,Jingenqi Li,Denglong Chen,Yuehong Ma,Chongli Wu,Qian-Qian Tang,Yi Hu,Long-Shuai Zhang,Jian-Ping Zou
Advanced oxidation processes (AOPs) based on peracetic acid (PAA) are widely employed for water purification; however, conventional PAA activation methods often exhibit low efficiency in generating hydroxyl radicals (•OH). Herein, a carbon nitride-supported Fe single atom catalyst (Fe-CN) is employed to activate PAA, achieving efficient degradation of 4-chlorophenol (4-CP). Experimental analyses confirmed that •OH is the predominant reactive species responsible for degradation. Density functional theory (DFT) calculations and in-situ Raman spectroscopy revealed that Fe-CN selectively adsorbs peroxy oxygen atoms from PAA, promoting O-O bond cleavage and •OH formation. The system demonstrated robust stability across a wide pH range, resistance to ionic interference, and high efficiency in natural water matrices. This work provides novel insights into •OH-dominated PAA-based AOPs for sustainable wastewater treatment.
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