Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·123082
·
IF 7.5
Zhe Xu,Jiantong Zhou,Chengfeng Liu,Weilan Zhen,Taicheng An
The peroxodisulfate (PDS)-based oxidation systems are promising for Cu(II) complex decomplexation owing to its capacity to harness the self-enhanced decomplexation (SED) effect of Cu(II) complexes. This phenomenon was conventionally attributed to liquid-phase autocatalysis via Fenton-like reactions between daughter Cu(II) species and PDS. However, this frequently adopted hypothesis is inconsistent with the actual catalytic activity of Cu(II) species and has been challenged by our preliminary results. Herein, we revisit the decomplexation of copper(II)-ethylenediaminetetraacetate (Cu(II)-EDTA) in UV/PDS system, with particular emphasis on correcting the catalytic behaviors of Cu species and clarifying the indispensable role of UV-irradiation in SED effect. Both acidic and alkaline conditions exhibit significant SED effect, but we reveal a pH-dependent SED mechanism that is fundamentally different from the prevailing liquid-phase autocatalysis mechanism. Under acidic conditions, Cu(II) complexes exhibit enhanced catalytic capacity with decreasing ligand coordination strength, primarily stemming from the activation of PDS by Cu(I) species produced via the irradiation-induced intramolecular charge transfer; In alkaline environments, only liberated Cu(II) substantially contribute to SED effect via spontaneous hydrolysis, forming nanostructured CuO after aging, which activates PDS through heterogeneous Fenton-like processes. While acidic conditions demonstrate faster decomplexation, alkaline-generated solid products facilitate multi-cycle treatment efficiency and alkaline conditions also exhibits stronger resistance to chloride. This work corrects the misinterpretation of SED mechanism in UV/PDS/Cu(II)-EDTA system, and provides a fundamental and accurate mechanistic basis for the efficient treatment of copper-containing organic wastewater by PDS-based processes.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Qihang Zhang,Anli Wang,Yifei Chen,Zihan Lin,Changyi Dong,Qiang Lu,Jixian Lv,Weike Yu,Siming Yang,Xiaoqun Qi,Jia Li,Fei Shen,Xiaogang Han
Scalable roll-to-roll dip coating fabricates ultrathin LiIn@Cu anodes. • Indium additive enhances molten lithium wettability on copper current collectors. • In₃Li₁₃ alloy phases act as lithiophilic sites to guide uniform Li deposition. • Pouch cell shows impressive flexibility under folding and unfolding conditions. Lithium metal anode is essential for next-generation high-energy-density batteries, yet its practical implementation is severely hindered by the challenges in manufacturing ultra-thin foils (< 50 μm) and the safety concerns associated with dendrite growth. In this study, we introduce a scalable and efficient roll-to-roll dip coating method to fabricate an ultra-thin (20 μm) LiIn@Cu composite anode. Copper current collector is lithiumphobic and hard to cast molten lithium. By adding a small amount of indium, it significantly improves the wettability of molten lithium on copper. The resulting anode demonstrates enhanced adhesion, along with abundant lithiophilic In₃Li₁₃ alloy phases that direct uniform lithium deposition. Electrochemical tests demonstrate that the LiIn@Cu anode delivers superior cycling stability for over 350 h in symmetric cells. Notably, when paired with NCM811 cathode at a low negative-to-positive (N/P) ratio of ~3, the full cell retains 85% capacity after 90 cycles, offering a promising strategy for the industrial-scale production of robust lithium metal anodes.
✓ 已验证
DOI
高影响因子
MATERIALS LETTERS
·
2026
·
IF 2.6
Hanlu Zhang,Tianqi Li,Yagang Feng,Shichang Cai,Xuexia Chen
CaZnOS is regarded as an excellent phosphor host with relatively favorable doping sites. However, CaZnOS-based long-persistent luminescence (LPL) materials still encounter challenges such as a narrow emission color range and short persistent luminescence lifetime. In this work, we modulated the emission band and LPL properties of a series of Ca 1-x Sr x ZnOS:0.1%Cu,1%Y phosphors through crystal field engineering by controlling the Sr/Ca ratio. The emission peak of the phosphor series was successfully tuned over 524–681 nm (from blue-green to orange-yellow), accompanied by a remarkable enhancement in both emission intensity and afterglow duration as x increases from 0 to 0.9. Moreover, the anomalous luminescence behavior of the SrZnOS:0.1%Cu,1%Y sample implies the crucial role of the Sr/Ca substitution-induced lattice distortion for tailoring the luminescence properties. Thermoluminescence (TL) spectra reveal that the persistent luminescence properties of these phosphors are closely correlated with their trap depth controlled by the Sr substitution ratio. This work provides an important reference for the composition design and development of high-performance LPL phosphors.
✓ 已验证
DOI
高影响因子
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
·
2026
·Vol. 36
·期 3
·988-999
·
IF 5.5
Qing-song LI,Bin YANG,Yang TIAN,Bao-qiang XU,Wen-long JIANG,Yuan GAO,Zong-kui JIANG
The modified molecular interaction volume model (M-MIVM) was used to calculate the activity values and their deviations from experimental data for Ag−Cu and Ag−Sb binary alloys. Subsequently, theoretical vapor−liquid equilibrium phase diagrams ( T − x − y and p − x − y ) were plotted via combining M-MIVM and vacuum theory. The vapor−liquid phase equilibrium (VLE) experiments were conducted on the Ag−Cu alloy at 1500−1560 K and 10−15 Pa and Ag−Sb alloys at 950−1350 K and 10 Pa. The results showed that the average relative deviation and average standard deviation of activity were lower than 5% and 0.02, respectively. A comparison of theoretical and experiment results for VLE revealed that the simulated data on the T − x − y diagram were well consistent with experimental values. Therefore, the VLE phase diagrams can serve as a guide in vacuum separation experiments and industrial production for Ag−Cu and Ag−Sb binary alloys.
✓ 已验证
DOI
高影响因子
Materials
·
2026
·Vol. 19
·期 8
·1532
·
IF 3.7
Keyu Chen,Yongming Wei,Kaihuai Duan
Highlights A novel PS-2-AB chelating resin was synthesized by grafting 2-aminobenzimidazole onto polystyrene. The resin showed Cu(II) and Ni(II) adsorption capacities of 125.04 mg/g and 157.44 mg/g, respectively. The resin maintained over 84% adsorption capacity after five regeneration cycles. To address heavy metal contamination in wastewater, this study developed a novel chelating resin (PS-2-AB) by grafting 2-aminobenzimidazole onto chloromethylated polystyrene. The resin was characterized using SEM, BET, FTIR, and XPS to confirm successful modification and analyze its structural properties. Batch adsorption tests were conducted to evaluate its removal performance for Cu(II) and Ni(II) ions. Under optimal conditions (pH 5.0–7.0, dosage: 1.0 g/L), PS-2-AB achieved maximum adsorption capacities of 125.04 mg/g for Cu(II) and 157.44 mg/g for Ni(II), which are significantly higher than those of the commercial resin D113 (44.68 mg/g for Cu(II) and 25.17 mg/g for Ni(II)) under the same conditions. Adsorption kinetics followed the pseudo-second-order model, indicating chemisorption-dominated behavior, while equilibrium data fit the Langmuir model, suggesting monolayer adsorption. Thermodynamic parameters confirmed a spontaneous and endothermic process. After five regeneration cycles, PS-2-AB retained approximately 87% (Cu) and 89% (Ni) of its original capacity, demonstrating good reusability. These results indicate that PS-2-AB exhibits markedly better adsorption performance than D113, making it a promising and cost-effective adsorbent for the efficient removal of Cu(II) and Ni(II) from aqueous media.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Qianyi Li,Zuopeng Li,Tianyu He,Bowen Zhu,Caiming Xiong,Sanbing Zhang
Conducting multi-mode detection of multiple targets simultaneously on a single platform can significantly enhance the accuracy and flexibility of the detection process. Herein, a fluorescence-colorimetric dual-mode sensing platform was constructed by in-situ coating polydopamine (PDA) on Cu/Ce multivalent metal-organic frameworks (Cu/Ce-MOFs). The obtained Cu/Ce-MOFs@PDA exhibits excellent fluorescent properties and multienzyme-like nanozymes activity (including mimics oxidase, peroxidase, phosphatase, and laccase), facilitating dual-mode detection of pesticides, phenolic pollutants, and biomolecules. Particularly, the excellent detection performance is attributed to the synergistic Ce 4+ /Ce 3+ -Cu 2+ /Cu + redox cycling and the interfacial electron modulation of polydopamine. In addition, the sensing platform demonstrates excellent signal reproducibility, remarkable anti-interference capabilities and strong applicability to real samples, with a recovery ranging from 84.3% to 118.8%. This work demonstrates a generalizable approach for constructing multifunctional bimetallic MOFs-based nanozymes, enabling the development of integrated analytical platforms with multi-mode signal outputs for environmental and biosensing applications.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2026
·
IF 3.2
Xinyao Jin,Jun Liu,Jiaqi Lv,Jie Jiang,Zhenye Ma
In this study, copper acetate, zinc acetate, and 1,3,5-benzenetricarboxylic acid (H 3 BTC) were used as raw materials to successfully prepare Cu-BTC, Zn-BTC, and Cu/Zn molar ratio 1:1, 2:1, and 1:2 Cu–Zn bimetallic metal-organic frameworks (MOFs) via a simple and low-energy room-temperature stirring method. MOFs/AP composite particles were subsequently prepared using a mechanical grinding and mixing method. The influence of them as catalysts on the thermal decomposition of ammonium perchlorate (AP) was systematically studied. Characterization methods like FTIR, XRD, SEM, and TEM validated the materials' structure and morphological features and showed that the Cu/Zn ratio modifies the MOFs’ microscopic morphology. DSC and TG analyses demonstrated that Cu–Zn-BTC (Cu:Zn = 2:1) exhibited excellent catalytic performance even at a low additive amount of only 2%. This catalyst markedly decreased the high-temperature decomposition peak of AP to 297.50 °C while simultaneously enhancing the heat release during decomposition to 1070 J/g. Furthermore, the apparent activation energy was substantially reduced from 216.26 kJ/mol observed for pristine AP to 127.45 kJ/mol. A longitudinal comparison showed that AP catalyzed by Cu–Zn-BTC (2:1) possessed the lowest thermal decomposition peak temperature, outperforming both Cu-BTC/AP (311.00 °C) and Zn-BTC/AP (334.80 °C). Furthermore, it exhibited the highest heat release and the lowest activation energy. Therefore, the synergistic effect between Cu and Zn in the bimetallic MOFs enhanced their catalytic performance, which was significantly superior to that of single-metal MOFs. This work provides important enlightenment for the design of AP-based propellant high efficiency catalyst.
✓ 已验证
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2026
·
IF 10.6
Ying Yang,Longli Bo,Lu Wang,Zhe Li,Jin Yan,Wenjie Wang
To eliminate the environmentally hazardous effect of chlorinated volatile organic compounds (CVOCs) and verify the feasibility of replacing noble metal catalysts with cobalt-based catalysts, monolithic Cu-Co-Ce/TiO 2 /cordierite honeycomb (CH) catalysts were prepared by a sol-gel/impregnation combined method and applied in the catalytic combustion of chlorobenzene, compared with commercial noble metal catalysts. The research suggested that Ce loading had an optimal amount, and Cu-Co 0.86 -Ce 0.54 /TiO 2 /CH catalyst exhibited the highest catalytic activity among four Cu-Co-Ce/TiO 2 /CH catalysts. Chlorobenzene was completely removed at 330℃ and mineralized at 400℃ under the conditions of an initial chlorobenzene concentration (C 0 ) of 1200 mg m −3 and gas hourly space velocity (GHSV) of 5000 h −1 . Compared with three noble metal catalysts, the Cu-Co 0.86 -Ce 0.54 /TiO 2 /CH catalyst had the highest catalytic ability at low C 0 and GHSV; however, its catalytic capacity was lower than that of noble metal catalyst C and higher than noble metal catalysts A and B at high values of C 0 (2000 m −3 ) and GHSV (20000 h −1 ). It is speculated that abundant active particles with different structures on the Cu-Co 0.86 -Ce 0.54 /TiO 2 /CH catalyst’s surface induce the lowest light-off temperature for chlorobenzene oxidation; however, their different catalytic activities also induce intermediate products that compete with chlorobenzene for the active sites, which decreases the catalytic activity of the catalyst, especially at high GHSV. The Cu-Co 0.86 -Ce 0.54 /TiO 2 /CH catalyst exhibited good stability, water resistance, and excellent anti-chlorine-poisoning capacity under two different conditions, confirming the feasibility of replacing noble metal catalysts at the relatively low space velocities. This research further identified the key mechanism behind which is the oxygen vacancies, the acid sites, and the electron transfers among Cu 2+ /Cu + , Co 3+ /Co 2+ , and Ce 4+ /Ce 3+ that promoted the adsorption, activation, and transformation of gaseous oxygen and chlorobenzene. Therefore, chlorobenzene is adsorbed and oxidized onto the active sites of the Cu-Co 0.86 -Ce 0.54 /TiO 2 /CH catalyst by both O ads and O latt, which follows the L-H mechanism and the MvK mechanism, respectively. For the noble metal catalyst C, both the E-R mechanism and the L-H mechanism could coexist in chlorobenzene degradation. This research establishes a theoretical basis for the commercial application of low-cost cobalt-based catalysts to effectively lessen the hazardous effects of CVOCs on the ecosystem and human health.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122664
·
IF 7.5
Yi Fang,Xinjie Ni,Zhiyi Ye,Yuan Tian,Danying Huang,Fuxiang Wei,Shan Huang,Qi Xiao
The poor dispersion and stability of metal-doped carbon materials prepared via conventional hydrothermal or calcination methods have limited their application in advanced oxidation processes (AOPs). Herein, inspired by a hot-spot-effect-triggered confined coordination strategy, we developed a coconut shell biochar-supported Cu–Ni catalyst (Cu–Ni@BC) for peroxymonosulfate (PMS) activation to degrade multiple antibiotics, including tetracycline hydrochloride (TCH), ciprofloxacin (CIP), and norfloxacin (NOR). The mechanochemical synthesis endowed the catalyst with a high specific surface area, uniform metal dispersion, and strong metal–support interaction, ensuring stable loading and excellent catalytic activity. Under optimal conditions, the Cu–Ni@BC+PMS system achieved 96.7% TCH removal within 30 min, markedly outperforming single-metal systems. Radical quenching experiments and EPR analysis identified O 2 •⁻ as the predominant reactive species, with additional contributions from •OH, ¹O 2 , and SO 4 •⁻, collectively indicating a synergistic radical/non-radical mechanism. The catalyst retained high activity over five cycles (TCH removal efficiencies of 97.1%, 96.0%, 92.7%, 86.9%, and 82.3%), with minimal Cu and Ni leaching. Toxicity evaluation confirmed significant detoxification of TCH and its intermediates. Moreover, the catalyst displayed high degradation efficiencies for CIP (95.7%) and NOR (85.6%), excellent performance in real wastewater, and strong anti-interference tolerance toward common inorganic anions, achieving 85.6–96.9% removal for diverse antibiotics and dyes. This study overcomes the performance bottleneck of traditional single-metal catalysts in PMS activation and provides new insights into designing efficient, stable, and sustainable bimetal–biochar catalytic materials.
✓ 已验证
DOI
高影响因子
ADVANCED SYNTHESIS & CATALYSIS
·
2026
·Vol. 368
·期 5
·e70307
·
IF 3.7
Wei Rao,Yifan Jiang,Qiong Liu,Junjun Zhang,Die He,Rong Chen
While high-valent copper intermediates are pivotal for efficient peroxydisulfate (PDS) activation, their generation and role in heterogeneous catalysis remain unclear. Herein, we demonstrate that a nonstoichiometric Cu 0.84 Bi 2.08 O 4 catalyst enables the dark activation of PDS via a novel pathway dominated by a surface-bound Cu(III)-peroxo intermediate ( ≡ Cu(III)-O−O−SO 3 ). A suite of spectroscopic and chemical probes revealed that this Cu(III)-peroxo species, along with superoxide radicals (•O 2 − ), acts as the primary oxidant, enabling the highly selective and rapid degradation of bisphenol A (BPA) and other phenolic pollutants. Furthermore, H 2 O 2 generated from PDS hydrolysis synergistically participates in the reaction, accounting for the exceptionally high PDS utilization efficiency of the system. The system exhibits remarkable robustness, maintaining high activity over a wide pH range (4–11) and demonstrating strong resistance to interference from ions. This study elucidates a distinct Cu(III)-peroxo-mediated mechanism and offers a new strategy for designing highly selective catalysts for environmental remediation.
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Feng Hu,Mengyi Liu,Jubo Zhang,Fangjiu He,Xiaowen Shi
This study presents an innovative electrochemical biosensor for the rapid and sensitive detection of Staphylococcus aureus ( S. aureus ), a significant foodborne pathogen. The biosensor is based on carbon paper modified with a Cu(Ⅱ)-crosslinked chitosan hydrogel film. Unlike conventional methods that rely on biomolecular recognition, this paper sensor detects S. aureus by measuring its unique respiration cycle, specifically its ability to reduce ferricyanide to ferrocyanide in the presence of mannitol. The chitosan hydrogel enhances the surface concentration of ferrocyanide and exhibits anti-fouling properties, while Cu(Ⅱ) crosslinking improves conductivity and diffusion. The biosensor demonstrates high sensitivity (0.082 μA/μM in I-t tests and 5.31 μA/μM in DPV tests) and low limits of detection (3.47 μM in I-t tests and 0.64 μM in DPV tests). It achieves a detection linear range of 10 0 to 10 5 CFU/mL with an LOD of 3.4 CFU/mL as well as excellent repeatability (RSD of 4.2%) and stability (retaining 83.4% of its initial signal after 15 days). Its performance in real food and wound samples confirms its high sensitivity and reasonable recovery rates, even in complex matrices. This research provides a strong foundation for the application of electrochemical biosensors in food safety monitoring and pathogen detection.
✓ 已验证
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Shuangyan Zhang,Chun Hu,Qihui Wei,Xiangbing Ding,Meixiu Pan,Yuchen Zhang,Huiling Zhang,Yunjun Mei
Coffee grounds are converted to magnetic biochar via one-step co-ball milling. • Cu(II) uptake increases by ∼66% with rapid magnetic separation. • Oxygen-containing groups and Fe 3 O 4 synergistically drive adsorption. • Over 71% capacity is retained after five cycles. The increasing prominence of Cu(II) pollution in water bodies has driven the development of efficient and easily recoverable adsorbents. In this study, M-CBC was prepared from waste coffee grounds via pyrolysis and ball milling. Ball milling significantly increased the specific surface area and introduced abundant oxygen-containing functional groups. The loaded Fe 3 O 4 provided favorable superparamagnetism (saturation magnetization: 8.87 emu/g), enabling rapid magnetic separation. Batch adsorption experiments showed that under optimal conditions (pH 5.0, dosage 0.8 g/L, time 180 min), the actual adsorption capacity for Cu(II) reached 23.54 ± 0.23 mg/g, representing an approximately 66% enhancement compared to unmodified biochar. The adsorption process followed the pseudo-second-order kinetic model and the Langmuir isotherm model, with a theoretical maximum adsorption capacity of 49.06 ± 1.36 mg/g at 25 °C, suggesting predominantly monolayer adsorption behavior on relatively homogeneous active sites. Thermodynamic analysis revealed that the adsorption process exhibited spontaneous and temperature-dependent characteristics, indicating the possible coexistence of multiple adsorption interactions. After five consecutive adsorption–desorption cycles, M-CBC retained 71.4% of its initial capacity, demonstrating excellent regeneration stability. Mechanistic analysis revealed that surface complexation with oxygen-containing groups played a dominant role, while the redox activity of Fe 3 O 4 provided synergistic enhancement. The combined effects of ball milling and Fe 3 O 4 loading effectively improved the adsorption performance, magnetic recoverability, and structural stability of the biochar. This work offers a resource-efficient approach to valorize waste coffee grounds and highlights the promising potential of M-CBC for treating Cu(II)-containing industrial wastewater due to its high efficiency and easy recoverability. Download: Download high-res image (142KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）