COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2021
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IF 4.539
Xiangke Han,Peng Li,Maowa Zhang,Jingtao Wang,Yijun Cao,Tong Zhang,Guoli Zhou,Fengli Li
The agglomeration of nanoscale carbon-based material with excellent large specific surface area and numerous active sites remains a challenging, which decreases the adsorption efficiency. Herein, a three-dimensional (3D) half-embedded architecture adsorbent membrane (ES-PAN/AHCNs) was designed to address this weakness by combining the small-sized activated hollow carbon nanospheres （AHCNs） with polyacrylonitrile (PAN) fiber. The 3D architecture precludes the agglomeration of AHCNs, while the half-embedded of AHCNs ensures structural stability of fiber adsorbents. The adsorption capacity and mechanism of ES-PAN/AHCNs membrane were investigated by using metal ions (Pb(Ⅱ), Cu(Ⅱ), Cr(Ⅲ)). Concretely, the adsorption capacity of ES-PAN/AHCNs membrane to Pb(Ⅱ), Cu(Ⅱ) and Cr(Ⅲ) were 192, 186 and 179 mg g −1 , respectively, which was more than two times than that of AHCNs. Noticeably, the significant increase of adsorption capacity mainly benefits from the 3D half-embedded architecture, owing to that pure PAN fiber has negligible adsorption capacity. Moreover, the adsorption capability of ES-PAN/AHCNs membrane retained 82.1% after twelve adsorption-desorption cycles. The strategy of fabricating 3D half-embedded adsorbent membrane substantially expands the potential for AHCNs applications in the adsorption and water purification fields.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2016
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IF 4.758
Yaqing Chang,Zhe Zhang,Jinhui Hao,Wenshu Yang,Jilin Tang
The detection of glyphosate (Glyp) in water is of increasing importance because of its potential danger to environmental and health. In this study, a simple and label free colorimetric method for Glyp detection is proposed based on the inhibition of peroxidase-like activity of Cu 2+ . Cu 2+ possesses the peroxidase-like activity that could catalyze the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) to oxidized TMB (oxTMB) in the presence of H 2 O 2 , resulting in a color change of the solution. However, the peroxidase-like activity of Cu 2+ could be strongly hindered by Glyp due to the formation of Glyp–Cu 2+ complexes. The color change of the solution or the absorbance change of oxTMB is utilized to monitor the concentration of Glyp. The linear range of the proposed method is 2–200 μM and the detection limit is 1 μM. Furthermore, as low as 10 μM Glyp can be clearly distinguished by naked eyes. Also, this proposed method is successfully applied for screening Glyp in real samples and shows great promise for environmental monitoring owing to its simplicity, rapidness and high selectivity.
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高影响因子
JOURNAL OF MOLECULAR STRUCTURE
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2025
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IF 4.7
Xingshi Li,Ruihan Zhang,Linlin Chen,Zhihui Cheng,Yaoguo Huang,Yali Zhang
A novel composite material, MIBuXATT@GO, was synthesized by functionalizing graphene oxide (GO) with a bi-ligand triazole-thione ligand, 3-methyl isobutylxanthate-4-amino-1,2,4-triazole-5-thione (MIBuXATT), for the efficient adsorption of Cu(II) ions. This modified material served as an adsorbent to enhance the selective adsorption of Cu(II) from wastewater by synergistically combining physical and chemical adsorption mechanisms. MIBuXATT@GO was characterized by XRD, SEM/EDS, and FTIR. Under the optimal conditions (pH=4, adsorbent dosage 250 mg/L, contact time 60 minutes), the maximum adsorption capacity of Cu(II) by the material is 97.24 mg/g, which is 1.3 times higher than that of GO. Meanwhile, the adsorption process of MIBuXATT@GO to Cu(II) is characterized as spontaneous endothermic chemisorption. Furthermore, the experimental results regarding metal ion adsorption selectivity indicate that MIBuXATT@GO exhibits superior selectivity for Cu(II) compared to Mn(II), Zn(II), Co(II), and Ni(II), which is an improvement over GO. The results indicate that MIBuXATT@GO is a promising adsorbent for the removal of Cu(II) ions from aqueous solutions, offering high capacity, rapid kinetics, and excellent selectivity. The adsorption mechanism was elucidated through FTIR, UV, XPS, and DFT calculations, revealing the critical role of the thiocarbonyl and triazole-thione functional groups in Cu(II) coordination. This work provides a new strategy for designing efficient adsorbents for heavy metal ion removal.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Qinbo Cao,Xingguo Huang,Li Guo,Haohua Qin,Lingpan Du,Menglai Wang,Dianwen Liu,Peilun Shen
PS/Fe 2+ /Cu 2+ reagents inhibited PbS flotation with 30 s of reaction. • Cu 2+ raised the SO 4 • − yield in the PS/Fe 2+ /Cu 2+ solution. • SO 4 • − oxidized the PbS surface, producing PbO and SO 4 2− . • Cu 2+ raised the Fe 3+ concentration in solution and improved the Fe 2+ /Fe 3+ cycle. Galena (PbS) depression in PbS–chalcopyrite (CuFeS 2 ) mixture via SO 4 • − radicals generated from persulfate (PS)/Fe 2+ typically requires a high PS concentration (0.15 mol/L) and a prolonged reaction time (10 min). This study employed a combined Cu 2+ /Fe 2+ catalyst to enhance SO 4 • − generation at a lower PS concentration. Flotation tests were conducted to determine optimal PbS treatment conditions using the PS/Fe 2+ /Cu 2+ system. The results showed that effective PbS depression was achieved with a PS concentration of 6.5 × 10 −3 mol/L and a reaction time of only 30 s. The synergistic role of Cu 2+ was investigated using surface analyses, including contact angle tests, XPS, Raman and UV-visible spectra. Contact angle measurements revealed that after 30 s of treatment, the PbS surface angle decreased to 38.2°, whereas the CuFeS 2 surface remained hydrophobic. Oxidation products, including PbO and SO 4 2− , formed on the PbS surface. SO 4 • − and •OH both existed in the system to react with the PbS surface, and SO 4 • − was the major radical species as indicated by the radical quenching tests. UV–visible spectrum results implied that Cu 2+ increased the equilibrium Fe 3+ concentration, thereby facilitating the Fe 2+ /Fe 3+ cycle and sustaining PS activation. The rapid oxidation capacity of the PS/Fe 2+ /Cu 2+ system demonstrates strong potential for industrial application. Download: Download high-res image (202KB) Download: Download full-size image
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2022
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IF 9.221
Qing Zhang,Shangshang Ma,Li Zhang,Hongyan Wang,Xin Zhuo,Guizhi Wang,Yanyun Shen,Keying Zhang,Shao Su
Microfluidic chip for sensing heavy metal ions has been strongly attended due to its merits, but still remains a large challenge from long analysis time derived from the preconcentration process of metal ions. Herein, a heated flow channel was manufactured by 3D printing combined with a filter paper to construct a microfluidic chip, the thermocapillary convection strategy was introduced to accelerate ions migration, allowing for rapidly recognizing metal ions. The MnO 2 nanosheets-Au nanostars (MnO 2 NSs-AuNSs) film was employed as modifier to fabricate a flexible screen printed electrode (SPE) for high-efficiency detecting metal ions based on thermocapillary convection accelerating accumulation method. To verify the proposed strategy, the detection of Cu 2+ was chosen as a model. The results revealed that the proposed strategy possessed a rapid detection to Cu 2+ , which greatly improved the detection efficiency (saved 400 s of preconcentration time) and achieved a detection limit down to 0.0270 ppb. Interestingly, the constructed method was successfully used to evaluate Cu 2+ concentration in sweat samples with satisfactory results. This proposed method maybe provide new insight to develop a novel approach to rapidly and sensitively detect metal ions, which possess huge utilization potentiality for safeguarding human health.
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高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2025
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IF 8.4
Jiyue Ding,Xiaoyu Liu,Ning Zhang,Yi Wang,Ke Cui,Huachi Yu,Jingyi Chen,Qingyang Xu,Jianyang Gao,Huaizhi Shao,Zilin Meng
The Mg-Al layered double hydroxides are intercalated with inorganic sulfides of sodium trithiocarbonate (Na 2 CS 3 ), sodium sulfide (Na 2 S), and organic sulfides of sodium dimethyldithiocarbamate (SDTC), trithiocyanuric acid (TMT) via the co-precipitation method for the purpose of removing Cu 2+ and Pb 2+ in aqueous solutions. The sorbents are characterized by XRD, FT-IR, BET, SEM, XPS and zeta potential. The sorption kinetic data fits well with the pseudo-second-order model and the intra-particle diffusion model. The sorption isotherm data for Cu 2+ align more closely with the Langmuir model, suggesting a preference for monolayer adsorption, whereas Pb 2+ sorption better follows the Freundlich model, indicating heterogeneous multilayer adsorption, thus revealing distinct sorption processes. Among the sulfur-intercalated LDHs, SDTC@LDH exhibits the highest sorption capacity for Cu 2+ and Pb 2+ , reaching 357.14 mg/L and 274.76 mg/L, respectively. Molecular simulations further elucidate the superior performance of organic sulfur-intercalated LDHs, demonstrating higher binding energies and stronger affinity between organic sulfides and Cu 2+ /Pb 2+ . The sorption mechanisms for Cu 2+ and Pb 2+ are explored: Cu 2+ preferentially reacts with interlayer sulfides in LDHs, subsequently displacing hydroxyl groups from the LDHs layers to form precipitates, whereas Pb 2+ first bonds with hydroxyl groups on the LDHs layers, causing structural collapse, followed by capture by exposed interlayer sulfides. Dynamic sorption experiments demonstrate that SDTC@LDH can treat larger volumes of aqueous solutions compared to other adsorbents, indicating that SDTC@LDH possesses superior sustained sorption capacity in water treatment applications. Coexisting ion experiments, pH tests, reusability studies, and sulfide/heavy metal leaching assessments confirm the high selectivity and stability of the adsorbents for Cu 2+ and Pb 2+ , with minimal risk of secondary pollution. Metal speciation analysis reveals that organic sulfur-intercalated LDHs provide more stable sorption for Cu 2+ and Pb 2+ .
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PubMed
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
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2023
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IF 5.7
Lang Ran,Yajuan Zheng,Wei Zhang,Xu Zhang,Lingxiao Zhu,Heng Zhang,Quanlin Zhao,Lincheng Zhou,Zhengfang Ye
Background Tetracycline has been widely used to the treatment of diseases caused by bacteria. However, it was inevitably discharged into the water environment during the application process. How to effectively remove Tetracycline is a topic worth studying. Methods Herein, a poly (chloromethyl styrene) based Cu(Ⅱ) and β-CD-doped resin named PS@PPDI-CDP-Cu(Ⅱ) made by a facile adsorption treatment was reported. The structure of PS@PPDI-CDP-Cu(Ⅱ) were characterized by SEM, XPS, and BET. The concentrate of Tetracycline was measured by a UV-visible spectrophotometer. Significant findings It was found that a higher catalytic ability was observed for PS@PPDI-CDP-Cu(Ⅱ) with a rate constant of 0.21 min −1 than Cu(Ⅱ) (0.05 min −1 ) due to the synergistic effect between Cu(Ⅱ) and β-CD, the whole progress was activated by NH 2 OH to form a more integral mechanism than that without NH 2 OH. Tetracycline could be efficiently degraded at a wide pH range from 3.24 to 9.25, PS@PPDI-CDP-Cu(Ⅱ) exhibited an excellent removal efficiency of 100% within 25 min and presented outstanding degradation efficiency over 6 reusable cycles. Compared with our previous work, PS@PPDI-CDP-Cu(Ⅱ) has the advantages of simple synthesis step, and the introduction of synergistic effect between Cu(Ⅱ) and β-CD makes it a better performance of Tetracycline degradation than PCMS@PPDI-CD.
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高影响因子
CHEMOSPHERE
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2020
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IF 5.778
LiWei Yang,YaQi Peng,ChengFeng Qian,GuoHua Xing,JiaoJie He,ChuanLiang Zhao,Bo Lai
An easily separation composite, magnetic chitosan@bismuth tungstate coated by silver (MCTS-Ag/Bi 2 WO 6 ), was successfully synthesized by the simple hydrothermal method. Moreover, the MCTS-Ag/Bi 2 WO 6 demonstrated excellent adsorption/photocatalytic removal of Cu(II) in aqueous solution. Adsorption played a leading role in the synergistic reaction. The catalysts were characterized by fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscope (SEM). The effects on adsorption of Cu(II) were investigated, which included illumination, pH, and initial concentration. The experimental results showed that the theoretical maximum adsorption capacity of Cu(II) (181.8 mg/g) was achieved under simulated solar light irradiation with the optimal pH value of 6.0, indicating that illumination could enhance the adsorption of Cu(II) by MCTS-Ag/Bi 2 WO 6 . Meanwhile, the composite exhibited desirable adsorption ability of Cu(II) after 5 cycles. The copper ion adsorption fitted well with pseudo-second-order kinetic model and its isotherm followed Freundlich model.
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高影响因子
BMC Chemistry
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2026
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IF 5.1
Wang Hu,Shi Hua,Guo Pengxiao,Zhang Xia,Zhou Yadong,Wang Renshu,Yin Chaochuang,Zhu Yangyang
In the present study, two Cu(II) complexes incorporating a Schiff base ligand, termed CuSBCs, were synthesized and subjected to structural characterization. The complexes are denoted as [Cu(C 10 H 8 NO 4 F)(C 10 H 9 N 3 )]·H 2 O ( C1 ) and [Cu(C 10 H 8 NO 4 F)(C 12 H 12 N 2 )]·H 2 O·CH 3 OH ( C2 ), featuring the Schiff base ligand (SBL, C 10 H 8 NO 4 F) and distinct auxiliary ligands, specifically 2,2’-dipyridylamine and 5,5’-dimethyl-2,2’-bipyridine. Within these two complexes, the central Cu(II) ion exhibits pentacoordination, binding to ONO donor sites of the SBL as well as two nitrogen donor atoms provided by the auxiliary ligand, yielding a distorted square pyramidal geometry. Theoretical computations for both complexes were performed using density functional theory (DFT) with the B3LYP functional via the Gaussian 16 program. The computational results are in good agreement with experimental observations. Notably, both complexes exhibited significant inhibitory activity against jack bean urease (UA), with C1 (IC 50 = 4.79 ± 0.77 µM) outperforming C2 (IC 50 = 6.83 ± 1.19 µM) and the reference inhibitor acetohydroxamic acid (AHA). Molecular docking (MOD) and molecular dynamics (MD) simulations reveal that the superior activity of C1 originates from its better steric matching and more stable interactions with the enzyme active site, providing structural evidence for the experimental activity trend. In addition, ADME predictions indicated that both complexes possess favorable drug-like properties and promising bioavailability. These findings highlight the promising therapeutic potential of Cu(Ⅱ) Schiff base complexes as UA inhibitors. Graphical
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高影响因子
Journal of Saudi Chemical Society
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2021
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IF 3.932
Shuhua Cao,Fahui Li,Qian Xu,Meng Yao,Shun Wang,Yunjun Zhou,Xiaotong Cui,Ruolin Man,Kaoxue Li,Xishi Tai
A novel tetranuclear copper complex (TCC) has been successfully synthesized and characterized using high resolution mass spectrometry (HRMS), Fourier transform infrared spectroscopy (FTIR) and X-ray single crystal diffraction technique. TCC was capable of triggering by Glutathione (GSH) to produce Cu (Ⅰ), then the resulted Cu (Ⅰ) further converted the overexpression of endogenous H 2 O 2 into •OH, a highly cytotoxic reactive oxygen species (ROS), thereby killing the cancer cells. TCC showed high cytotoxicity to 4T1, MCF7, HepG2 cancer cells. Interestingly, the cytotoxicity of TCC to non-cancerous cells is much lower than that of cancer cells. Cell cycle experiments demonstrated that TCC was capable of arresting the cancer cell cycle in the G2/M phase. The apoptosis experiments shown that TCC could induce apoptosis rather than necrosis.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Zhijie Liu,Xin Li,Hezhi Guo,Zekai Zhang,Yongchun Wang,Polun Pang,Yuting Gao,He Guo
This paper presents a novel type of Underwater Bubble Plasma-Divalent Copper Salt-Peroxymonosulfate (UBP-Cu(Ⅱ)-PMS) for the efficient degradation of emerging contaminants in water. The results demonstrate that Cu(Ⅱ)-PMS can be effectively activated during UBP treatment process, generating two highly reactive free radicals ( OH and · S O 4 _ ) that promote the degradation of high-concentration tetracycline hydrochloride (TC). A comparative analysis of UBP’s performance in activating persulfate (PS), PMS, and sulfite (S(IV)) for the synergistic degradation of TC revealed that PMS and UBP exhibited the strongest synergistic effect. When PMS is 0.5 g/L, the activation performance peaked, with the UBP-PMS system achieving an impressive 87.22 % degradation efficiency of TC within 20 min, which is 30.02 % higher than that of the single UBP system. Furthermore, upon introducing Cu(Ⅱ) into the UBP-PMS system, with PMS at 0.5 g/L and Cu(Ⅱ) at 0.05 g/L, the degradation efficiency of TC reached 95.73 %, and energy efficiency was measured at 1.5509 g·(kWh) −1 within 20 min, surpassing other treatment systems. Free radical trapping experiments indicated that the primary reactive species responsible for TC degradation in UBP-Cu(Ⅱ)-PMS co-catalytic strategy include OH, ONOOH/ · O 2 _ , · S O 4 _ and 1 O 2 . Fenton-like reaction enhances the concentration of OH in the solution, while oxygen-sulfur radical reaction produces · SO 4 \_ . The conversion between different valence states of Cu primarily involves electron transfer. Possible degradation pathways were proposed based on DFT calculations and LC-MS analysis during the synergistic treatment, and the toxicity of by-products generated during the degradation process was evaluated using T.E.S.T. software. Ultimately, a synergistic degradation mechanism for the UBP-Cu(Ⅱ)-PMS strategy was proposed. This study introduces a new activation strategy involving UBP-Cu(Ⅱ)-PMS and provides valuable insights into the degradation performance and mechanisms of emerging contaminants.
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高影响因子
CONSTRUCTION AND BUILDING MATERIALS
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2023
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IF 7.4
Richeng Lian,Mingyu Ou,Haocun Guan,Jiahui Cui,Zexuan Zhao,Lei Liu,Xilei Chen,Chuanmei Jiao
Epoxy resin (EP) is widely used as an organic coating in the field of building materials (such as steel and timber). However, it’s high flammability and smoke release in fires further hinder its application in construction. Here, Cu(II) and Co(II) complexes decorated ammonium polyphosphates (BAPP@Cu and BAPP@Co) were synthesized by a facile strategy of chemical surface modification and used as multifunctional additives to enhance various properties of epoxy coatings. It has been found that both BAPP@Cu and BAPP@Co as co-curing agents not only promote the curing reaction of EP but also enhance the interfacial compatibility between the filler and the epoxy matrix. In addition, both BAPP@Cu and BAPP@Co endow EP with enhanced mechanical performance and heat insulation compared to pristine ammonium polyphosphate (APP). More importantly, both BAPP@Cu and BAPP@Co impart excellent fire safety to EP coatings. The peak heat release rate (pHRR) and peak CO production rate (pCO) of EP-6 %BAPP@Cu are decreased by 35.6% and 46.2%, respectively, compared to virgin EP. Similarly, EP-6 %BAPP@Co exhibits high fire performance, with a 57.7% reduction in pHRR and a 62.9% reduction in pCO, respectively, in comparison to virgin EP. This work reports a new strategy for the chemical modification of APP by metal complexes and provides a new perspective for the application of building coating materials.
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高影响因子
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