JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Zhenxin Wang,Yifan Yin,Jiaqi Yang,Jiaye Duan,Xiangkang Zeng,Wuang Ren,Shengjiong Yang,Gen Wang
Peracetic acid (PAA)-based advanced oxidation processes (AOPs) have shown promise for organic pollutants removal but predominantly rely on conventional mineralization pathways. Herein, we propose a novel strategy for eliminating phenolic contaminants via polymerization using a heterogeneous CuO/PAA system, in which phenolic compounds are not decomposed but primarily transformed into recoverable solid-state organic polymers. Mechanistic investigations reveal that the catalytic system leverages electron transfer from phenolic contaminants to activated PAA (e.g., CuO@PAA complex), generating phenoxy radicals that undergo crosslinking via polymerization and coupling reactions. Consequently, at neutral pH and low PAA dosage (3.0 mM), complete removal of diverse phenolic compounds (1.0 mM), including phenol, halophenols, cresol and bisphenols, was achieved within 90 min, with 60.5–74.9 % of total organic carbon (TOC) converted into solid-state polymers. More importantly, the electron transfer-driven polymerization maintained efficient in complex matrices and authentic coking wastewater, eliminating 100 % of volatile phenolics (1750 ± 25 mg/L) while generating recoverable polymers (150 mg/L) and enhancing biodegradability (BOD 5 /COD from 0.22 to 0.52). Through the design of a dual-zone reactor, the CuO/PAA-driven polymerization process demonstrated scalability with reduced environmental impact. This work provides a sustainable paradigm for phenolic wastewater remediation via PAA-activated polymerization, enabling simultaneous contaminant elimination and carbon resource recovery.
研究领域:
环境科学
·
环境工程
·
化学工程
·
污染控制
·
高级氧化过程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
·
2021
·
IF 9.297
Lian Yi,Yubiao Li,Liangliang Zhu,Caiyan Gao,Xiaoyong Wu
Developing a low-cost and excellent catalyst for advanced oxidation process (AOPs) to degrade refractory organic contaminants is still an urgent problem. In this work, a copper oxide decorated natural rectorite (Cu-R) catalyst was successfully synthesized by a facile impregnation method. Intriguingly, Cu-R possessed excellent performance in removing tetracycline (TC) through photoinduced peroxymonosulfate (PMS) activation, and its reaction rate constants were ca. 4.3 times and 7.0 times that of Fe 2 O 3 and Co 3 O 4 , respectively. Moreover, the effects of reaction parameters on the photoinduced Cu-R activation of PMS to degrade TC were investigated in detail. The results showed that the system exhibited excellent impact resistance to Cl − , HCO 3 − and NO 3 − in aqueous solution. Cu-R could not only exhibit excellent removal of TC in a wide pH range of 5–9, but also maintain the stability of the catalyst. The electron paramagnetic resonance test and quenching experiments proved that the excellent TC removal ability could be mainly attributed to the synergistic effect between CuO and rectorite under the assistant of light, which was beneficial for the activation of PMS and then produced a large number of active radicals such as •OH and O 2 • - . Importantly, a possible path for TC degradation was given by the LC-MS analysis. The prepared Cu-R can provide a low-cost, high-efficiency and promising catalyst for the treatment of antibiotic wastewater by PMS activation with photoassistent.
研究领域:
环境科学
·
催化材料
·
废水处理
✓ 已验证
DOI
高影响因子
Scientific Reports
·
2017
·Vol. 7
·期 1
·1-9
·
IF 4.259
Yang Fan,Kang Xiaoli,Luo Jiangshan,Yi Zao,Tang Yongjian
In this paper, a solvent/non-solvent synthetic approach has been utilized in preparing a new nanoenergetic material KClO 4 @Al/CuO by coating Al/CuO nanocomposites particles with a layer of nanoscale oxidizer KClO 4 . The coating process and mechanism are discussed. The composites of Al/CuO are uniformly mixed by mechanical ball milling process and CuO acts as a catalytic metallic oxide. The ternary mixtures KClO 4 @Al/CuO were characterized by X-ray diffraction (XRD) and the results reveal that after ball-milling and chemical synthesis process, the phase compositions haven’t changed. Scan electron microscopy (SEM) images show that these energetic nanocomposites consist of small clusters of Al/CuO that are in intimate contact with a continuous and clear-cut KClO 4 layer (100–400 nm). In a Scanning transmission electron microscopy (STEM) elemental map, high K/Cl intensity on the perimeter of the nanoparticles and high Cu/Al content in the interior powerfully demonstrated the KClO 4 @Al/CuO core-shell nanostructure. Electrical ignition experiments and pressure cell test prove that these nanoenergetic composites are more sensitive to ignition with much higher burning rate than traditional formulations (conventional counterparts). To quantify the enhancement of thermal behavior, Thermogravimetry (TG) and Differential scanning calorimetry (DSC) were performed and the results show that the burning rate of these energetic nanocomposites nearly tripled.
研究领域:
材料科学
·
含能材料
·
纳米技术
·
热分析
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Wenlei Yin,Jiayan Yang,Keyang Zhao,Anyang Cui,Jiaoyan Zhou,Wei Tian,Wenwu Li,Zhigao Hu,Junhao Chu
Photodetectors based on p-type metal oxides are still a challenge for optoelectronic device applications. Many effects have been paid to improve their performance and expand their detection range. Here, high-quality Cu1–xNixO (x = 0, 0.2, and 0.4) film photodetectors were prepared by a solution process. The crystal quality, morphology, and grain size of Cu1–xNixO films can be modulated by Ni doping. Among the photodetectors, the Cu0.8Ni0.2O photodetector shows the maximum photocurrent value (6 × 10–7 A) under a 635 nm laser illumination. High responsivity (26.46 A/W) and external quantum efficiency (5176%) are also achieved for the Cu0.8Ni0.2O photodetector. This is because the Cu0.8Ni0.2O photosensitive layer exhibits high photoconductivity, low surface states, and high crystallization after 20% Ni doping. Compared to the other photodetectors, the Cu0.8Ni0.2O photodetector exhibits the optimal response in the near-infrared region, owing to the high absorption coefficient. These findings provide a route to fabricate high-performance and wide-detection range p-type metal oxide photodetectors.
研究领域:
光电子学
·
材料科学
·
半导体器件
·
纳米技术
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2019
·Vol. 45
·期 8
·10845-10851
·
IF 3.45
Yuhan Yao,Ju Rong,Jing Feng,Yannan Zhang,Xiao Wang,Xiaohua Yu,Zhaolin Zhan
The modification of TiO 2 is a vigorous and challenging research field. In the present study, TiO 2 /CuO composite nanofibers , designed by considering the thermodynamics of nanocrystals , have been synthesized by an electrospinning and hydrothermal method . The results showed that the grain growth of uniform and highly active CuO was driven by the surface drag force of TiO 2 nanofibers. TiO 2 /CuO showed an alternating current impedance as low as 2.874 Ω, and the Li + diffusion rate was increased tenfold compared to that of bare TiO 2 nanofibers. Equally importantly, the electron diffusion kinetics was also explored, which revealed that the band gap was reduced by 1.14 eV compared to that for bare TiO 2 nanofibers. In addition, TiO 2 /CuO exhibited satisfactory stability and electrochemical performance. Its initial discharge capacity was 540 mAh·g −1 , and that after discharge over 400 cycles at 0.1 C was 174 mAh·g −1 . The design method may be more broadly applied to various nanostructured TiO 2 materials.
研究领域:
材料科学
·
纳米技术
·
电化学
·
储能
✓ 已验证
DOI
高影响因子
ENERGY & FUELS
·
2024
·
IF 5.2
Jinchen Ma,Yingjie Mi,Fan Wang,Chaohe Zheng,Haodong Huang,Haibo Zhao
In the chemical looping combustion of chlorine-rich biomass or coal, a trace element, chlorine, will cause serious corrosion of oxygen carriers and heat exchange equipment in boilers. To address this issue, we design Ca- and Ba-decorated oxygen carriers to achieve two goals: on one hand, reducing the concentration of chlorine-containing gases by in situ dechlorination; on the other hand, employing protective materials to preferentially bind with gaseous chlorine to safeguard the active components of the oxygen carriers. Carefully designed experiments are conducted under simplified experimental conditions using 50 ppmv HCl-containing CH4 to evaluate the intrinsic characteristics of oxygen carriers in terms of dechlorination efficiency and reactivity. The results demonstrate that both the reaction performance and the chlorine-resistance performance of Ca–Cu and Ba–Cu composite oxygen carriers are significantly improved. This is because (a) Ca and Ba preferentially form chlorides with HCl, effectively shielding the active Cu component of the oxygen carrier from chlorine poisoning and (b) the specific surface area and pores of Ca/Ba-decorated oxygen carriers are increased, which not only strengthens the heterogeneous reaction between oxygen carrier and combustible gas but also improves the chemical looping combustion performance. The Cl-resistant oxygen carriers, Ca–Cu and Ba–Cu, emerge as promising candidates for the chemical looping combustion of fuels with high chlorine content.
研究领域:
能源化学
·
材料科学
·
环境工程
✓ 已验证
DOI
高影响因子
Nature Communications
·
2026
·
IF 15.7
Zhang Xinyi,Wang Liangjie,Wei Jian,Guo Zhuang,Liu Xinyao,Duan Lijie,Zhao Huazhang,Song Yonghui
Oxygen vacancies (O v ) on metal oxide surfaces exhibit high catalytic activity for activating peroxymonosulfate (PMS) in wastewater decontamination, yet their in-situ regeneration remains a significant challenge. This study successfully achieves in-situ real-time regeneration of O v on CuO surfaces through simple alkali etching without interrupting the contaminant removal process. The surface hydroxyl groups introduced by alkali treatment significantly reduce the formation energy of O v on CuO surfaces from 1.60 eV to 0.38 eV. Both experimental results and density functional theory calculations reveal that the high activity of CuO relies on the synergy of surface hydroxyl groups and O v . This synergy increases the antibonding states below the Fermi level and the electron spin density of Cu near O v , thereby promoting electron transfer from CuO to PMS. As a result, by just adding an equimolar amount of alkali relative to PMS in CuO/PMS system, the degradation rate constant of sulfamethoxazole (SMX) greatly increases by 42 times. The primary reactive oxygen species in this system are sulfate radicals and hydroxyl radicals. Furthermore, OH - /CuO/PMS system exhibits a long-term stability (> 300 h) for SMX removal in a real water matrix. This work provides a highly executable method to in-situ real-time regenerate O v on CuO surfaces, representing significant progress in the critical yet underappreciated field of catalyst regeneration.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Tianyu Li,Mengna Zhan,Rongkun Jiang,Yiqing Zeng,Shule Zhang,Zhaoxiang Zhong
CuO-based catalysts have garnered significant attention for CO oxidation reaction, while their susceptibility to sulfur poisoning limits their practical application in industrial flue gas treatment. In this study, three CuTi oxide catalysts with distinct CuO-TiO 2 heterointerfaces were prepared by sol-gel, impregnation, and mechanical mixing methods to investigate the influence of interfacial structure on CO oxidation activity and SO 2 tolerance. Catalytic performance and characterization show that a high-density CuO-TiO 2 heterointerface can induce the formation of strong Cu Ti interactions and improve the dispersion of copper species. These effects facilitate CO adsorption and increase oxygen vacancy concentration, thereby enhancing the low-temperature CO oxidation activity. Although the high-density heterointerface enhances SO 2 adsorption capacity, the accompanying strong Cu Ti interaction reduces the stability of copper sulfate (Cu-O-S) species. This promotes the decomposition of copper sulfate and helps preserve active sites, thus improving SO 2 tolerance. This work offers new insights into the rational design of sulfur-tolerant CuO-based catalysts for CO oxidation.
✓ 已验证
产品关联
DOI
高影响因子
Analytical Methods
·
2026
·
IF 3
Yu Liu,Jingjing Fang,Liangxiao Jiang,Hengchao Yang,Cheng Yao,Chan Song
Herein, carbon and nitrogen co-doped CuO nanozymes (C–N/CuO) were constructed via direct pyrolysis of copper(II) phthalocyanine (CuPc) as a single-source precursor. This approach enables the simultaneous incorporation of Cu, C, and N without additional dopants, offering a simple route to tune the electronic structure of CuO. The sample obtained at 400 °C (C–N/CuO-400) exhibits enhanced peroxidase-like activity, which is attributed to C–N incorporation and reduced particle size. In the presence of H2O2, C–N/CuO-400 catalyzes the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) by reactive oxygen species (˙OH and 1O2). Tetracycline (TC) suppresses this process, resulting in a decreased color signal. Based on this effect, a colorimetric and smartphone-assisted method was developed for TC detection, showing a linear range of 1–40 µM with detection limits of 0.15 µM and 0.38 µM. This work provides a simple and effective strategy for nanozyme-based sensing.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Jian Liu,Xiaojing Sang,Rong Wang,Xinhang Li,Haotian Zhu,Shiwen Du,Wansheng You,Jiansheng Li
To overcome the limitations of low activity and poor stability of catalysts in oxygen evolution reaction (OER), this study developed a hierarchical heterostructural AgO-CuO/Cu nanowire bundles (NBs) self-supported electrode through room-temperature electrochemical synthesis of Cu NBs, followed by silver displacement, electrodeposition, and in-situ oxidation processes. The catalyst exhibits excellent OER performance, requiring overpotentials of only 200, 302, and 391 mV at current densities of 10, 100, and 500 mA cm −2 , respectively, with a low Tafel slope of 67 mV dec −1 . Remarkably, it demonstrates outstanding durability for 400 h at 100 mA cm −2 in 1.0 M KOH. The results of theoretical calculations indicate that the synergistic AgO-CuO heterointerface, in which the d-band center of AgO undergoes an upward shift due to the regulatory effect of CuO, significantly reduces the free energy barrier of the rate-determining step. Meanwhile, the self-supported hierarchical nanowire bundle architecture enables short oxygen diffusion pathways and reinforced structural durability. This dual optimization of electronic structure and mass transport provides an innovative strategy for designing binder-free electrocatalytic systems, offering valuable insights into energy conversion technologies.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Shaohui Zhang,Jia Liu,Yan Pu,Yifang Zhang,Yingcong Wei,Huaxiang Lin,Jinlin Long,Rongjian Sa,Xianzhi Fu,Rusheng Yuan
The dynamic structural reconstruction of semiconductor photocatalysts caused by the generated corrosive by-products seriously affects their catalytic activity. Contrary to the conventional perception of acid corrosion as a detrimental factor in photocatalytic reactions, we demonstrate that in-situ acidic etching during photocatalytic arene C H trifluoromethylation reaction can generate oxygen vacancies, lattice dislocations, twinning boundaries and localized amorphous domains in cupric oxide (CuO) photocatalyst, leading to remarkable activity enhancement. The in-situ characterization and kinetic studies reveal that the generated acidic byproducts (trifluoromethylsulfonic acid and SO 2 ) induce a self-optimizing reconstruction of CuO via continuous Cu 2+ leaching. These structural changes enhance charge separation and induce electron redistribution in CuO, optimizing the interaction between active sites and reaction intermediates, thereby accelerating the reaction kinetics in trifluoromethylation reactions as well as photocatalytic oxidation of olefins and toluene. This work sheds light on the understanding of dynamic reconstruction in affecting photocatalytic efficiencies of semiconductor photocatalysts and redefines the role of acid corrosion in semiconductor photocatalyst design.
研究领域:
光催化
·
材料化学
·
半导体催化
·
有机转化
·
表面科学
✓ 已验证
产品关联
DOI
高影响因子
Nanomedicine
·
2018
·
IF 5.005
Yahui Zhang,Lin Wang,Xiang Xu,Fang Li,Qingsheng Wu
Aim: The combined efficacy of CuO nanoparticles (NPs) with 22 kinds of antibiotics against Escherichia coli was systematic studied, and CuO with cephalexin synergistic system was screened out. Methods: Antimicrobial susceptibility test included disk diffusion test, checkerboard method and time-kill assay. The interactions of CuO NPs and antibiotics were analyzed by x-ray photoelectron spectroscopy, Fourier transform infrared spectra and Zeta. The interactions between bacteria and antibacterial agents were studied by surface plasmon resonance sensor for the first time. Results & Conclusion: Synergistic effect (1+1>2) was observed when CuO NPs combined with cephalexin against E. coli. The concentrated cephalexin molecules interacted more strongly with the E. coli cells to make cell wall become loose. Then, CuO NPs were more easily to damage and penetrate cells. Besides, the presence of antibiotics did not enhance Cu2+ release, Cu2+ uptake and reactive oxygen species generation. But the presence of cephalexin greatly enhanced cell permeability in comparison to others.
研究领域:
微生物学
·
药理学
·
纳米医学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）