Journal of Materials Chemistry A
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2026
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IF 9.5
Junzhou Men,Zeyu Wang,Chen Luo,Ai Zhang,Hui Xian,Tao Jiang,Yating Wang
To address the urgent demand for efficient solar-to-hydrogen conversion, a novel Cu-doped 3D ordered macroporous (3DOM) ZIF-8 photocatalyst was fabricated via polystyrene sphere templating coupled with a dual-solvent method. Systematic characterization confirmed the preservation of the ZIF-8 crystalline structure after ∼2 at% Cu2+ incorporation. The 3DOM framework amplified light absorption via slow-light effects, while Cu2+ doping narrowed the band gap and further intensified the slow-light phenomenon. The optimized Cu-3D-ZIF-325 exhibited a photocatalytic hydrogen evolution rate of 2233.2 µmol g−1 h−1, which is 29 times higher than that of pristine ZIF-8. This performance enhancement originated from synergistic mechanisms: EIS measurements revealed that Cu2+ sites improved charge separation, and the optimized band structure facilitated carrier transport; DFT calculations further verified that Cu2+ optimized the adsorption/dissociation of water and elevated the conduction band potential, strengthening the reductive driving force for H2 production. This work establishes a viable dual-modification strategy for high-efficiency MOF-based photocatalysts.
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NEW JOURNAL OF CHEMISTRY
·
2026
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IF 2.6
Haitao Wang,Min Xie,Yubin Liu,Haitao Duan,Qinglin Liu,Shengwei He,Shuxiang Lyu
In this study, a composite material denoted as Cu-BDC@AC with small particle size was synthesized by incorporating Cu-BDC with activated carbon (AC). This integration resulted in an increased specific surface area and enhanced adsorptive desulfurization performance. The maximum static sulfur capacity for n-propanethiol (nP) in styrene system was 50.7 mg S/g, while the desulfurization rate for pyrolysis gasoline was approximately 50%. The Cu-BDC@AC material was characterized using scanning electron microscopy (SEM), N2 adsorption-desorption isotherms and spectroscopy (XRD, FTIR and XPS) analyses. The adsorption process follows the pseudo-second-order kinetic, and is a chemisorption process. The adsorption behavior of nP on Cu-BDC further analyzed using an internal diffusion model. A possible mechanism for the adsorption of nP on Cu-BDC@AC is proposed: the formation of ligand bonds between Cu and S as the main role of chemisorption. This work offers a promising strategy for the removal of small-molecular sulfur compounds from unsaturated oils.
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RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
·
2026
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IF 1.5
Gao R.,Hong R. Y.,Hong H. L.,Liang C. Z.,Jiao Z. Z.,Jin S. W.,Li Z. Z.,Wang D. Q.
Three novel isonicotinamide(inic)-based Cu(II) complexes [Cu(inic) 2 (cbba) 2 ] (inic is isonicotinamide, cbba is 2-( p -chlorobenzoyl)benzoate) ( 1 ), [Cu(inic) 2 (mpa) 2 ] (mpa is 4-methoxyphenylacetate) ( 2 ), and [Cu(inic) 2 (tmca) 2 (H 2 O)] 2 ⋅CH 2 Cl 2 (tmca is 3,4,5-trimethoxycinnamate) ( 3 ) have been acquired by the injection of the carboxylates as the auxiliary ligands and characterized by using the X-ray crystallography, together with the elemental analysis, FT-IR, and thermogravimetric analysis techniques. In all the complexes, the Cu(II) ions are coordinated through two monodentate carboxylates to the two anions, forming approximately a plane. Each Cu(II) ion is then coordinated with the pyridine N atom of the inic molecules that behave as the monodentate ligands. The amide groups of the inic create the H-bonds with other amide and carboxylate residues, engendering a molecular crystal with the three-dimensional H-bond arrangement of the mononuclear units. The X-ray diffraction studies displayed that these complexes possessed mononuclear structures with the square planar/square-pyramidal coordination modes at the Cu(II) ions. The pair of the complementary N–H···O H-bonds between the amides of the inic molecules were set up in compounds 1 and 3 , making the dimer motif of inic, while there found the catemer motif of the inic molecules through using the intermolecular single N–H···O H-bond between the CONH 2 in 2 . The CH–O contacts derived from the py CH of the inic molecules were built in all the compounds. The intricate intra- and intermolecular classical H-bonds, O–C, O–O, Cl–Cl, CH 3 –CH/CH–CH, CH 3 –C, CH–O/CH 2 –O/CH 3 –O, CH–Cl/CH 3 –Cl, C–π, O–π, CH–π, and π–π associates are elucidated by using the X-ray crystallographic studies, driving the isolated complexes into the high-dimensional ordered supramolecular structures.
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APPLIED CATALYSIS A-GENERAL
·
2026
·
IF 4.8
Siyu Yi,Guobin Zhou,Yi Wang,Mengxia Ji,Jinman Yang,Yi Zhang,Pengcheng Yan,Zhao Mo,Zhaolong Wang,Junjie Yuan,Hui Xu,Xiaojie She
Electrocatalytic CO 2 methanation is promising for carbon neutrality but hindered by complex multi-electron transfer process, thereby obtaining low product selectivity. Herein, we report a copper single atom catalyst anchored on nitrogen doped carbon nanotubes (Cu-N-CNTs) for efficient electrocatalytic CO 2 methanation. By synergistically regulating the precursor, Cu-N 4 active sites are precisely constructed at the atomic scale, effectively suppressing copper aggregation. In situ characterization indicates that the catalyst forms a moderate local alkaline microenvironment during the reaction, suppressing C-C coupling side reactions and promoting methane pathways. In the flow cell, Cu-N-CNTs achieve a FE CH4 of 59.2% and a partial current density of 168.7 mA cm −2 at −1.577 V vs. RHE, and operated stably for 10 h. Moreover, Cu-N-CNTs exhibit remarkable methane selectivity in membrane-electrode assembly (MEA) systems employing both alkaline and pure-water electrolytes. A scaled-up MEA prototype further verifies the outstanding operational stability of Cu-N-CNTs under practical conditions. These results collectively underscore the substantial potential of Cu-N-CNTs for industrially relevant electrocatalytic CO 2 methanation.
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ACS Applied Energy Materials
·
2023
·
IF 6.4
Tongyang Zhang,Aihua Yan,Sen Luo,Fei Huang,Jixu Zhang,Ye Gao,Wenxue Zhao,Ziwu Liu,Xianhui Zhao
Photocatalytic technology still faces enormous challenges to design and synthesize highly efficient photocatalytic materials with a high electron/hole separation efficiency, rapid charge migration, low carrier recombination rate, and strong visible light-harvesting capability. Herein, Cu-doped ZnIn2S4/NixP (marked CuyZIS/NP) composites were successfully synthesized by a simple two-step method. The synergistic effect of Cu2+ doping and the NixP cocatalyst on hydrogen evolution performance was investigated in detail. The results showed that superior photoactivity over CuyZIS/NP composites was achieved. The optimal Cu0.5ZIS/NP-1/2 sample had a hydrogen evolution rate of 4746.3 μmol·g–1·h–1 under visible light irradiation, which was approximately 15.98 times higher than that of pure ZnIn2S4 (297 μmol·g–1·h–1). This work may offer a valuable insight into understanding the synergistic effect of doping and cocatalysis and provide a guideline for designing and developing highly efficient visible light-driven photocatalysts toward a water splitting system.
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Surfaces and Interfaces
·
2022
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IF 6.137
Zhong Zhao,Changwang Yan,Daiqi Li,Xiaoning Tang,Jianhua Ran,Shuguang Bi,Deshan Cheng,Guangming Cai,Xin Wang
The inevitable oxidation of metal layer deposited on substrates is a nonnegligible issue when developing functional textiles. In this study, were on the surface of to form a metallic Cu layer, and graphene (GO) sheets were spray-coated onto an in-situ grown copper nanoparticle (Cu NP) layer on a nylon knitted fabric (NKF) to prevent the oxidation of copper. In addition, a synergistic effect on further enhancing the electrical conduction capacity was realized by the hydrothermal reduction of the GO sheets using L-ascorbic acid (L-AA). The morphology, chemical composition and structure of the NKFs were characterized by SEM, FTIR, XRD and XPS , respectively. The novel rGO/Cu@NKF architecture enabled the fabric prospects of promising action sensing capability as reflected by the repeated ΔR/R 0 peaks recorded in action sensing during real running exercises. The mechanism of sensing and the responsiveness together with the stability of the sensors were investigated. The rGO/Cu@NKF also showed efficient electrothermal performance as evidenced by a maximum surface temperature of 95.0°C after 120 s into the charging process at 15 V. These results demonstrated the potential of the rGO/Cu@NKF in smart textiles with action sensing and heating functions.
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MATERIALS CHEMISTRY AND PHYSICS
·
2022
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IF 4.778
Ping Yang,Xiuhong Meng,Penghu Guo,Rujin Zhou,Youhua Zhang,Shui Cao,Dan Zhang,Hongbing Ji,Linhai Duan
Two critical characteristics for gas adsorption and separation are the porosity and open metal sites of adsorbents. The Cu–BTC (BTC = benzene–1,3,5–tricarboxylate) structure was tailored using a template synthesis technique to increase the separation performance for C 3 H 6 /C 3 H 8 mixtures. The three hierarchical porous frameworks, Cu x O y @HP–Cu–BTC, synthesized using a cationic surfactant (cetyltrimethylammonium bromide (CTAB)), a neutral organic amine (N,N–dimethyltetradecylamine (N,N)), and an anionic surfactant (sodium dodecylbenzene sulfonate (SDBS)) as the template, Cu x O y @HP–Cu–BTC(SDBS) exhibited the best performance, with a C 3 H 6 adsorption capacity of 6.679 mmol g −1 , which was significantly greater than that of C 3 H 8 (5.721 mmol g −1 ). Cu x O y @HP–Cu–BTC(SDBS) has an ideal ultra–microporous structure that encloses C 3 H 6 molecules precisely while rejecting slightly bigger C 3 H 8 molecules, and C 3 H 6 interacts strongly with unsaturated metal sites through particular π–Cu bonds. According to the ideal adsorbed solution theory (IAST), the adsorption selectivity of C 3 H 6 /C 3 H 8 was 63.322, which is more than that of the reference adsorbent Cu–BTC. Additionally, the breakthrough studies shown that Cu x O y @HP–Cu–BTC(SDBS) has a good dynamic performance for the effective separation of the C 3 H 6 /C 3 H 8 mixture.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2022
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IF 9.136
Hongai Zheng,Meilin Zhu,Derui Wang,Yao Zhou,Xin Sun,Shuangyan Jiang,Mengyao Li,Cunzheng Xiao,Daquan Zhang,Lizhi Zhang
Membrane fouling is one of the main impediments that limit the wide application of Polyvinylidene fluoride (PVDF) membrane. In this study, for the first time, we incorporated the cellulose nanocrystal (CNCs) onto Cu-MOF-74 by physical stirring and then coated the composites on the PVDF membrane to ameliorate the antifouling performance. The PVDF membrane with the addition of CNC/Cu-MOF-74 composite showed enhanced hydrophilicity compared with the pristine membrane, which significantly promoted the permeability and antifouling performance. The Bovine serum albumin (BSA) multiple-cycle antifouling results revealed that the flux recovery ratio (FRR) value (76.9 %) was much higher than that of the pristine membrane (60.8 %). The enhancement of recovery flux was correlated with the increased electrostatic repulsion and hydrophilicity of the modified membrane according to the contact angle test and Zeta-potential measurement. Meanwhile, the CNC/Cu-MOF-74 modified membrane showed improved antibacterial efficiency (96.3 % at 4 h) due to the predominant antibacterial efficacy of Cu-MOF-74. The efficiently antibacterial achievement of modified membrane was attributed to the release of Cu 2+ and the generation of •OH. This study proposed a novel modified membrane with excellent antifouling properties and provided new insights into the fabrication of antifouling membranes with outstanding performance.
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Biosensors-Basel
·
2022
·Vol. 12
·期 10
·881
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IF 5.743
Pei Dai,Xianzhi Huang,Yaqian Cui,Lihua Zhu
Tetrabromobisphenol A (TBBPA) was one of the most widely used brominated flame retardants. However, it easily contaminates nature and harms the environment and human health during its production and use. Therefore, it is necessary to strictly control the content of TBBPA in electronics. Surface-enhanced Raman spectroscopy has the advantages of being fast and sensitive, but it is difficult to obtain the SERS spectra of TBBPA because the hydrophobic TBBPA molecule is difficult to approach with the hydrophilic surface of common noble metal SERS substrates. In the present work, a hydrophobic Cu-Ag chip was developed for the SERS detection of TBBPA. The integration of the hydrophobic interaction and the Ag-Br bonding promoted the adsorption of TBBPA on the Cu-Ag chip, allowing for SERS detection. It was observed that both the hydrophobicity and bimetallic composition of the Cu-Ag chip played important roles in the SERS detection of TBBPA. Under the optimized conditions, the low limit of detection of the established SERS method for TBBPA was 0.01 mg L−1, within a linear range of 0.1–10 mg L−1. Combined with ultrasonic-assisted extraction, the substrate could be used for the quantitative determination of TBBPA in electronic products. Compared with the HPLC-UV method used as a national standard, the relative error of the SERS method for quantifying the TBBPA content in a mouse cable and shell was ±3% and ±7.7%, respectively. According to the SERS results, the recovery of TBBPA in the spiked mouse shell was 95.6%.Keywords:tetrabromobisphenol A;surface-enhanced Raman scattering;hydrophobic interaction;bi-metal chips;synergistic coupling
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PubMed
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2022
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IF 4.326
Haixia Wang,Yan Xu,Dafu Xu,Long Chen,Qinqin Xiao,Xiaoqing Qiu
The rapid growth of industry inevitably leads to a large variety of organic pollutants in the aquatic environment. The design of a photoelectrochemical (PEC) sensor is significant to achieve the goal of sensitive quantitative determination of organic pollutant residues. In this work, the graphitic carbon nitride (g-C3N4) quantum dots (CNQDs) with high crystallinity were synthesized through the step-by-step cutting of bulk g-C3N4, which were modified with Cu(II) and then utilized to the fabrication of a PEC sensor for monitoring the typical organic pollutant methyl viologen in water. In the detection process, by means of the redox of Cu(II)/Cu(I), Cu(II) can effectively accelerate the photogenerated carriers’ separation of CNQDs, and facilitate the reduction of methyl viologen, contributing to the notable photocurrent signal. More importantly, the stable PEC sensor presents a perfect linearity between the change in photoelectric signal and logarithm of methyl viologen concentrations ranging from 0.1 to 200 ng mL–1. Thus, the constructed Cu-CNQDs 2% can be widely utilized in the quantitative determination of methyl viologen in real monitoring of environmental pollutants.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2022
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IF 4.598
Li-Fang Chen,Ai-Yun Xie,Yao-Yin Lou,Na Tian,Zhi-You Zhou,Shi-Gang Sun
Here we successfully synthesized tetrahexahedral copper nanocrystals enclosed with {5 2 0} high-index facets (THH Cu{5 2 0}) by electrochemical square-wave potential method without the utilization of additional capping agents. The THH Cu{5 2 0} exhibited outstanding performance in electroreduction of nitrate to ammonia, achieving a high Faradaic efficiency of 98.3% and a yield rate of up to 9.13 mmol h −1 cm −2 at −0.90 V (vs. RHE) in neutral solution.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2022
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IF 4.326
Fangjun Shao,Xiaojian Wang,Zijiang Zhao,Zhongzhe Wei,Xing Zhong,Zihao Yao,Shenwei Deng,Shibin Wang,Hong Wang,Aiyuan Li,Jianguo Wang
One-pot cascade transformations are environmentally friendly and are used to prepare complex organic molecules. However, chemselectivity is hard to control during the tandem reaction of imines. Herein, a Cu nanoparticle-decorated Ru cluster catalyst (Cu6Ru1.5/C-SiO2), with an average size of 2.1 nm, was designed and synthesized by impregnation and galvanic replacement. The synergistic effect of the Ru cluster and Cu nanoparticles caused Cu6Ru1.5/C-SiO2 to carry more Lewis acid active sites and constituted a unique catalyst surface. Then, the hydrogenation of nitrobenzene and reductive amination of benzaldehyde were effectively performed during a one-pot cascade transformation on the surface of the catalyst. Finally, N-benzylidene aniline (imine) was prepared smoothly by nitrobenzene and benzaldehyde with 96.3% selectivity in this catalytic system. This work provides a general and powerful strategy to optimize the catalytic performance, which can be scalable to other catalytic systems.
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