PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Yaolong Yang,Xuan Jiao,Binrui Wu,Jiahao Li,Yuanyuan Yang,Wanbo Chen,Yuying Wang,Xi Chen,Shenshen Zhang,Song Yang,Feiyan Fu
Superhydrophobic coatings have emerged as a promising solution for enhancing the durability and longevity of metallic materials in various industrial applications, especially in the field of metal anti-corrosion. However, previous coatings were complicated to prepare and exhibited limited corrosion resistance performance. In this study, we developed a corrosion-resistant and superhydrophobic coating with comprehensive protective capabilities using an environmentally benign and highly efficient two-step electrodeposition approach. This coating can be deposited on contoured surfaces for the corrosion protection of metallic substances. In the first electrodeposition step, sodium citrate was employed to promote the combination of copper and nickel, forming a rough copper‑nickel coating. In the second step, a cerium stearate coating was fabricated and modified. The morphology, structure, and corrosion resistance of the coating were comprehensively characterized. The results showed that the static contact angle of water on the coating could reach up to 155° at most, and the corrosion current density could be as low as 2.51 × 10 −10 A/cm 2 , enabling 1500 h immersion resistance in 10 wt% NaCl solution. Moreover, the coating's outstanding comprehensive performance enables it to withstand various harsh natural environments. This study provides a new theoretical support for the corrosion protection of metals under adverse natural conditions.
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DOI
高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2025
·
IF 4.6
Wenbin Huang,Ningran Hou,Han Yang,Zhen Xu,Tianyu Bai,Fan Shao,Yasong Zhou,Qiang Wei
Series g-C 3 N 4 /Cu/B-TiO 2 (x) composites with different mass ratio of g-C 3 N 4 to Cu/B-TiO 2 were prepared and tested for photocatalytic reduction of CO 2 . The structure–function relationship of the photocatalysts was investigated through various characterization methods and photocatalytic experiments. The results show that g-C 3 N 4 can be uniformly distributed on the surface of Cu/B-TiO 2 and formed a stable heterojunction structure, which effectively reduced the band gap width of the catalyst, thus significantly improving the visible light absorption capacity of the catalyst. The modulation of the composite material properties can be realized by regulating the composite ratio of g-C3N4 and Cu/B-TiO 2 . The rate and selectivity of photocatalytic reduction of CO 2 to produce CO reached the maximum when the mass ratio of g-C 3 N 4 to Cu/B-TiO 2 was 3:7, and the rate of CO production was as high as 32.65 μmol∙g −1 ∙h −1 , which was about 12.87 percentage points higher than that of Cu/B-TiO 2 .
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DOI
高影响因子
Talanta Open
·
2025
·
IF 3.7
Xin Li,Kaigang An,Shuang Zhang,Jing He,Huifeng Liu,Hongdeng Qiu,Yiqun Wan,Jia Chen
Rapid detection of antibiotic residues in food is essential for public health. This study aims to develop a highly sensitive colorimetric sensing platform based on a novel nanozyme. To this end, we used a green, tunable, and safe choline chloride/urea-based deep eutectic solvent (DES) to synthesize a metal organic framework, Cu-BTC (BTC: 1,3,5-benzenetricarboxylate), with many highly dispersed copper active sites. As a result, the prepared Cu-BTC showed strong peroxidase-like activity. In the presence of hydrogen peroxide (H 2 O 2 ), it efficiently catalyzed the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) to the blue product TMBox. Importantly, we found that tetracycline (TC) specifically and significantly inhibits this color reaction. The inhibition occurred because TC can directly reduce the blue TMBox, suppressing color development. Based on this effect, we developed a new colorimetric method for sensitive TC analysis. The method had a wide linear range (0.025-25 μM) and a very low detection limit (0.0024 μM). Moreover, it was successfully applied to accurately detect TC in complex food matrices such as milk and honey. Thus, this work not only provides a green route to synthesize high-performance nanozymes, but also establishes a simple, fast, and sensitive colorimetric platform for on-site detection of antibiotic residues in food.
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Ning Pan,Minjie Chen,Junjie Tan,Lei Liao,Rong Nie,Jianpeng Xu,Run Lei,Hao Zou,Hao Lei,Zhijie Chen,Xiaoqin Nie
Fabricating efficient copper-based adsorbents for radioactive iodine removal is crucial for environmental protection and waste volume reduction, particularly in the treatment of radioactive waste from hospitals. In this study, a composite of reduced graphene oxide (RGO) supported by Cu-Cu 2 O nanocrystals (Cu-Cu 2 O/RGO-3) was synthesized via a one-step method and evaluated for its effectiveness in iodide removal from water. The composite was comprehensively characterized using XRD, SEM, FT-IR, and XPS analyses. The effects of copper content, pH, contact time, iodide concentration, temperature, and coexisting anions on iodide uptake were systematically investigated. In the Cu-Cu 2 O/RGO-3 composite, copper primarily existed as metallic Cu, along with a small amount of Cu 2 O. Cu-Cu 2 O/RGO-3 exhibited a significantly higher I - adsorption capacity compared to Cu powder, effectively reducing I - concentrations from 8.6 to 0.029 mg/L within just 3 min, demonstrating a rapid uptake rate for trace I - . Furthermore, the maximum adsorption capacity reached 152.1 mg/g at pH 7.0, surpassing that of many reported copper-based adsorbents. The composite showed selectivity in the presence of competing ions like Cl - , NO 3 - , and SO 4 2- , but HCO 3 - at higher concentrations inhibited I - adsorption. Post-adsorption analysis revealed that iodine was present solely as CuI. XPS analysis indicated that residual carboxyl groups in RGO facilitated the oxidation of Cu and promoted redox reactions between Cu(OH) 2 and Cu, providing multiple pathways for generating additional Cu + ions, thereby enhancing I - adsorption. This study offers a practical approach for modifying carbon-based materials with copper compounds, emphasizing the potential of copper-based materials for effective iodide purification in wastewater treatment.
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高影响因子
Materials Today Bio
·
2025
·
IF 10.2
Yajuan Hu,Wei Xu,Linghan Sun,Xuemin Ma,Peirong Zhou,Chuankai Zhang,Rui Cai,Xia Wang,Hua Yang,Gang Tao,Junliang Chen,Yun He
Periodontitis is a chronic inflammatory disease characterized by oxidative stress, immune system imbalance, and the progressive destruction of periodontal tissues. Traditional treatment approaches are limited by the incomplete eradication of pathogens, the risk of antibiotic resistance, inadequate control of inflammation and oxidative stress, and restricted tissue regeneration capacity. Therefore, this study proposes an injectable multifunctional Laponite/gelatin hydrogel loaded with epigallocatechin gallate (EGCG)-copper ion (Cu 2+ ) complexes as a localized therapy for periodontitis. EGCG exhibits antioxidant, anti-inflammatory, and antimicrobial properties; however, its clinical application is hindered by poor stability and bioavailability. Cu 2+ coordination enhances EGCG stability and antioxidant capacity while improving its antimicrobial efficacy. Experimental results demonstrate that the Laponite/gelatin hydrogel is adaptable for the localized delivery of EGCG-Cu, with bioactive metal ions such as Li + , Mg 2+ , and Si 4+ contained in Laponite, which promote osteogenesis and periodontal tissue regeneration. In vitro and in vivo studies confirm that this hydrogel exhibits excellent biocompatibility, effectively inhibits Porphyromonas gingivalis , suppresses M1 polarization while promoting M2 polarization, and facilitates periodontal tissue repair. Therefore, this study provides promising insights into a localized therapeutic strategy for periodontitis.
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DOI
PubMed
高影响因子
IEEE SENSORS JOURNAL
·
2025
·
IF 4.5
Zelong Li,Xuemei Lin,Zengshan Yu,Guochao Shi,Wenying Zhou,Jiahao Cui,Shan Guo,Mingli Wang
Accurate and sensitive detection of bilirubin, cholic acid, and Alanine aminotransferase (ALT) is essential for the early detection of hepatobiliary diseases in healthcare and the medical field. Integrating surface-enhanced Raman scattering (SERS) with deep learning algorithm has shown great application prospect in the early identification of markers of hepatobiliary diseases. Here, an regular Ag decorated Cu-Ag nanoisland-liked SERS biosensor (Ag@5/Ag-Cu@20/PSS) was constructed by using pattered sappire substrate as a template. An additional 5 mins of Ag nanofilm significantly improved the SERS signal intensity and homogeneity, and the sensitivity was enhanced by two orders of magnitude up to 10-10 M for 4-aminothiophenol (4-ATP). Importantly, deep learning algorithms included temporal convolutional networks (TCN), convolutional neural networks (CNN), recurrent neural network (RNN) and Transformer were used to deeply mine SERS spectral data of bilirubin, cholic acid and ALT, extract effective features, and establish an accurate classification and prediction model. Results indicating that the developed SERS biosensor combined with Transformer model demonstrated excellent accuracy (ACC) of 0.9816±0.0090 in qualitatively and quantitatively analyzing of bilirubin, cholic acid, and ALT. The successful application of the SERS biosensor will help improve the accuracy of early identification of bilirubin, cholic acid, and ALT disease markers and promote the early intervention and treatment of hepatobiliary diseases.
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高影响因子
FUEL
·
2022
·
IF 8.035
Kaige Li,Tao Li,Yuhang Dai,Yanhong Quan,Jinxian Zhao,Jun Ren
MCo 2 O 4 (M = Co, Cu, Ni or Zn) spinel catalysts have been prepared using a chemical co-precipitation method and applied in toluene combustion. The physicochemical properties of the MCo 2 O 4 catalysts was discussed to explore the impact of substitution on the tetrahedral A-site ions. The results of the activity evaluation show that the catalytic performances of Co 3 O 4 , CuCo 2 O 4 and NiCo 2 O 4 with urchin-like morphology are far superior than ZnCo 2 O 4 nanoparticles. The CuCo 2 O 4 catalyst exhibited the most superior performance for toluene combustion, and the toluene conversion rate reached 90% at 230 °C. When compared to the other catalysts, the optimal activity of CuCo 2 O 4 was attributed to the presence of more reactive oxygen species, a higher concentration of Co 3+ ions on catalyst surface and better reducibility at relative lower temperature. Moreover, the catalytic activity of the CuCo 2 O 4 catalyst did not decrease significantly in the long-term test, demonstrating its excellent stability.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2018
·
IF 3.141
Ke Wang,Zhaobin Tian,Na Yin
Novel cross-flow disturbance of ceramic membrane was used for the first time to enhance the adsorption of highly toxic Cu(II) onto Zr-based metal–organic frameworks (Zr-MOFs). Effects of temperature and pH were investigated on the adsorption process of Cu(II) onto the MOFs using the jar test. The results showed that the MOFs can well adsorb Cu(II) (59.8 mg g–1) at a pH of 6 and a temperature of 40 °C. On the basis of this, the MOFs were then added into a novel cross-flow ceramic membrane filtration system. Effects of the operation temperature and membrane pore size were also investigated on the adsorption process. The results showed that Zr-MOFs adsorption of Cu(II) increased with temperature. The ceramic membrane with a pore size of 200 nm exhibited better Cu(II) removal and membrane flux than did the 50 nm membrane, as well as better kinetic data fit of the pseudo-second-order model. With the aid of cross-flow disturbance of ceramic membrane, the capacity was incredibly increased to 988.2 mg g–1 at a pH of 6, temperature of 40 °C, cross-flow velocity of 4.5 m s–1, and trans-membrane pressure of 0.05 MPa. The principal advantages of this method are a significant enhancement of adsorption onto the Zr-MOFs in the removal of Cu(II) and convenient application in the continuous treatment of heavy metal wastewater. This can be used as an effective method in continuous adsorptive removal of heavy metals from wastewater.
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高影响因子
ADVANCED ENGINEERING MATERIALS
·
2024
·Vol. 26
·期 12
·2400304
·
IF 3.4
Jin-Hao Liu,Yong-Qiang Wan,Li-Yin Gao,Xian-Wei Cui,Zhi-Quan Liu
Copper with equiaxed grains (EG Cu), copper with columnar nanotwinned grains (C-NT Cu), and copper with mixed equiaxed and columnar grains (MG Cu) are electroplated on pads and redistributed layers (RDLs) with different dimensions. When the diameters of pads increase from 40 to 105 μm, the flatness of pads decreases from 34.5% to 24.0%. The flatness gradually deteriorates from 16.5% to 34.4% with the increase of RDL width from 8 to 20 μm. In contrast, the flatness of C-NT Cu and MG Cu fluctuates between 1% and 5%, showing a weak correlation on the dimension. In terms of microstructure, the EG Cu and MG Cu has a weak correlation with size change, and the grain orientation shows a randomness. However, the (111) texture component of C-NT Cu differs greatly with different dimensions, especially in transition layer. The (111) texture component changes from 9.6% to 38.1% for ϕ 40–105 μm pad and from 14.3% to 18.9% for 8–20 μm-wide RDL. The study reveals the significant size effect on the deposited profile and microstructure of electrodeposited copper materials, which should give insights of the materials design in advanced packaging technology.
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高影响因子
Journal of Manufacturing Processes
·
2020
·
IF 4.086
Xiaoping Cai,Keer Li,Changcheng Sang,Xuanru Ren,Leihua Xu,Peizhong Feng
The dissimilar metals joining of Ti/Cu was conducted using a rapid thermal explosion (TE) reaction. The Ni-Al powder mixture was used as TE reaction system, and the effect of temperature (600, 700, 800 and 900 °C) on interfacial diffusions, microstructure and mechanical properties of Ti/Cu joint were investigated. The maximum combustion temperature of Ni-Al interlayer during heating process was 720 °C and a significant exothermic phenomenon was observed for 5 s. The infiltration of melted Al into the Ti/Cu substrate and formed a continuous transition region at the interface of the joints were the dominant joining mechanisms. Microhardness of the interlayer after heated at 900 °C for 30 min possessed prominent improvement from 32.6 to 101.7 HV due to the completely phase transformation of Ni-Al interlayer, which composed of main phase NiAl and minor phase Ni 3 Al. The bond strength of the joint was checked to assess the joint quality. For the joint processed by 900 °C for 30 min, the maximum shear strength of Ti/NiAl and Cu/NiAl were 33.4 MPa and 39 MPa, respectively.
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高影响因子
CELLULOSE
·
2017
·Vol. 25
·期 1
·735-751
·
IF 3.417
Cui Sheng,Wang Xue,Zhang Xin,Xia Wei,Tang Xianglong,Lin Benlan,Wu Qi,Zhang Xin,Shen Xiaodong
In this paper, a MnFe 2 O 4 -Cellulose magnetic composite aerogel (MnCA) with high adsorption capacity was fabricated by in situ incorporating MnFe 2 O 4 to regenerated cellulose hydrogel matrix, followed by CO 2 supercritical drying. A green synthetic strategy was performed by using renewable cellulose materials, environmentally benign cellulose solvents and facile synthetic conditions. The results showed that the obtained magnetic cellulose aerogel had a continuous and tiered three dimensional network with interconnected fibrils of about 30 nm in width, which was similar to those of cellulose aerogel prepared from NaOH/urea solution via CO 2 supercritical drying. Meanwhile, they had high specific surface areas of 236–288 m 2 /g and total pore volume of 0.55–0.88 cm 3 /g. In addition, the hybrid aerogel showed superparamagnetism with maximum saturation magnetization reaching up to 18.53 emu/g. The magnetic nanocomposite aerogel could be used for biological and environmental applications. The adsorption test showed that MnCA had rapid adsorption rate and excellent adsorption ability of removing heavy metal ions in aqueous solution which could attain to 63.3 mg/g within 100 min. Moreover, all the composite aerogels exhibited good reusability and could be easily reused from the water after adsorption.
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高影响因子
CHINESE JOURNAL OF CHEMISTRY
·
2023
·Vol. 42
·期 6
·617-622
·
IF 5.4
Wei-Xing Chen,Yu-He Xu,Cui-Cui Wang,Lei Qiao,Zi-Yan Guo,Wen-Juan Tian,Zhong-Ming Sun
Comprehensive Summary Binary polyantimony clusters, namely [Cu 2 Sb 14 ] 4– and [Ag 2 Sb 14 ] 4– , containing coinage metals, were successfully synthesized and characterized, in which two homoatomic Sb 7 3– subunits are bridged by two coinage metals in η 4 : η 1 and η 1 : η 1 coordination modes, respectively. In [Cu 2 Sb 14 ] 4– , two bridging Cu ions and two Sb atoms form a planar rhombic unit, which was revealed to have antiaromatic properties by theoretical calculations. Further electron structure and bonding analysis confirmed the presence of delocalized bonds in the rhombic unit and the metallophilic interaction between two formal M + ions.
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高影响因子
危险品化学品经营许可证（带存储）