Laser & Photonics Reviews
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2025
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IF 10
Yandong Ren,Zhen Xuan,Jiben Yang,Jianbo Chang,Yuntong Jia,Xueai Yin,Yonghao Liu,Jia-ao Wang,Graeme Henkelman
The development of highly stable and optically tunable materials is crucial for next-generation patterning and anti-counterfeiting applications. This study presents a comprehensive investigation into the synthesis, structural dynamics, and optoelectronic properties of MA 4 Cu 2 X 6 (X = Cl, Br, Br/Cl) films fabricated via a three-step spin-coating technique. By leveraging halide anion engineering, the precise control over the coordination environment of Cu centers are achieved, as evidenced by synchrotron-based extended X-ray absorption fine structure analysis. Both their strong electron–phonon coupling and high exciton binding energies facilitate efficient self-trapped exciton emission. The photoluminescence emission is tailored from yellow to green and eventually to blue-green under ultraviolet excitation (254 nm). STE localization mitigates thermal quenching, achieving PLQYs >64%. Stability assessments indicate that mixed-halide compositions effectively suppress Cu+ oxidation, prolonging luminescence performance. Mixed halides enhance environmental stability, retaining >25% initial PLQY after 720 h in ambient conditions. Furthermore, the films demonstrate tunable diffraction properties in patterned photonic architectures, highlighting their potential for advanced optoelectronic devices. The films demonstrate high-resolution patterning capabilities via photolithography and screen printing, underscoring their potential for advanced optical security applications.
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ELECTROCHIMICA ACTA
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2025
·
IF 5.6
Haoqi Liang,Yutong Yang,Yijia Wang,Zejun Deng
Escalating aquatic contamination by toxic heavy metal ions (HMIs) urgently requires field-deployable electrochemical sensors surpassing traditional methods. This work proposed a controllable synthesis of cobalt-embedded nitrogen-doped carbon/carboxyl-functionalized multi-walled carbon nanotube (Co@NC/CMWCNTs) composites through in situ growth of ZIF-67 on CMWCNTs, followed by optimized carbonization. CMWCNTs-directed morphological evolution was systematically demonstrated, revealing that with increasing CMWCNT ratios, the ZIF-67 crystallite size underwent an initial increase and later decay, and after carbonization, a unique knot-like interpenetrating architecture was formed with CMWCNTs as bridges and Co@NC as nodes. This synergistic structure significantly enhanced electrical conductivity and electrocatalytic activity, as evidenced by electrochemical characterization. Compared to the glassy carbon electrode (GCE), the Co@NC/CMWCNTs/GCE sensor exhibited a 12-fold reduction in charge transfer resistance (28.3 Ω vs. 346.8 Ω), a 21% larger electroactive surface area, and rapid heterogeneous electron transfer kinetics of 3.8 × 10⁻³ cm s -1 . The composite sensor allowed simultaneous detection of Cd²⁺, Pb²⁺, Cu²⁺, and Hg²⁺ in 0.1 M NaAc-HAc buffer (pH 4.5) with high sensitivities (169.7, 199.0, 135.9 and 108.0 μA·μM⁻¹ cm -2 ), low detection limits (40.0, 40.5, 87.5 and 106.2 nM) and observed cross-interference within 10%. This work establishes a materials design paradigm for MOF-derived electrochemical sensors for low-cost on-site environmental monitoring of HMIs.
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Biomaterials Advances
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2025
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IF 6
Gao Pan,Qi Zhong,Tiange Wang,Xiuwen Gao,Huixing Li,Jiajun Li,Hui Yang,Cijun Shuai,Shuping Peng
Molybdenum disulfide (MoS 2 ), a typical piezoelectric sonosensitive material, holds great promise in ultrasound-activated catalytic antibacterial applications and osteogenic differentiation promotion. However, it has two key limitations: rapid carrier recombination leading to insufficient antibacterial activity; and difficulty in forming stable interfaces with biopolymers as an inorganic compound, which impairs effective sonocurrent transmission in heterojunction scaffolds for osteogenesis induction. To address these issues, we proposed a multi-beneficial strategy: anchoring Cu-MOF to MoS 2 via Cu S chemical bonds to construct a Type-II MoS 2 /Cu-MOF heterojunction. Under ultrasonic stimulation, this heterojunction undergoes polarization to form a built-in electric field, accelerating carrier separation and enhancing catalytic efficiency. Additionally, Cu-MOF releases Cu + and Cu 2+ ions, which undergo Fenton-like reactions with bacterial endogenous H 2 O 2 and glutathione to generate hydroxyl radicals via chemodynamic effects, increasing reactive oxygen species (ROS) production; the resultant oxygen further boosts sonodynamic efficiency. Furthermore, Cu 2+ in MoS 2 /Cu-MOF forms metal coordination bonds with carboxyl groups in poly-l-lactic acid (PLLA) macromolecules, constructing an interfacial “Line-Point-Plane” ternary structure that enhances interfacial electron transfer efficiency, facilitates sonocurrent transmission, and thus effectively realizes electrical stimulation for osteogenic differentiation. Specifically, we incorporated the heterojunction into PLLA matrix powder and fabricated MoS 2 /Cu-MOF/PLLA heterojunction scaffolds via selective laser sintering (SLS). Under ultrasonic stimulation, these scaffolds achieve synergistic sono/chemodynamic antibacterial activity, while ultrasound-activated sonocurrents transmit through the ternary interfacial structure of the heterojunction scaffolds to effectively induce osteogenic differentiation. Results showed that compared to pure MoS 2 scaffolds, the heterojunction scaffold exhibited a 0.4 eV narrower band gap and a 350 Ω lower impedance, with antibacterial rates of 97.3 % and 98 % against Staphylococcus ( S.aureus ) and Escherichia coli ( E.coli ), respectively. Notably, under ultrasonic irradiation, the upregulation of osteogenic factors such as Wnt-10b is induced, and osteoblast differentiation is promoted simultaneously; the results indicate that osteogenic factors like Wnt-10b have a potential role in promoting osteoblast differentiation under ultrasonic conditions.
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PubMed
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POLYMERS FOR ADVANCED TECHNOLOGIES
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2016
·Vol. 27
·期 11
·1501-1507
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IF 1.823
Zhubo Liu,Bing Zhou,A.V. Rogachev,M.A. Yarmolenko
Polytetrafluoroethylene (PTFE) composite coatings doped copper acetate and polyurethane (PU) were prepared on rubber substrate by low-energy electron beam dispersion technique. The effects of dopant and glow discharge treatment on the surface morphology, structure and tribological properties of the coatings were investigated. The results showed that Cu–PTFE composite coatings form uniform surface and dense column structure with spherical aggregations under glow discharge treatment. PU coating shows the large size of protuberance structure but PU–PTFE coating presents spherical structure. Both of the coatings become relative dense and smooth after discharge treatment, and Cu–PU–PTFE composite coatings possess a smoother surface and lower polar component of surface energy. Cu doping weakens the crystallinity and ordering degree of composite coatings, but glow discharge increases the ordering degree and branched structure of C―H groups. Friction experiment indicated that Cu fails to improve the wear resistance of PTFE coatings but glow discharge treatment can do it. Cu–PU–PTFE coatings after discharge treatment have the higher wear resistance and lower coefficient of friction. Copyright © 2016 John Wiley & Sons, Ltd.
研究领域:
材料科学
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表面工程
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高分子材料
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摩擦学
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等离子体物理
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涂层技术
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Journal of Cleaner Production
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2023
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IF 11.1
Yuanjia Luo,Yuqin Xia,Changtao Wang,Jianhua Chen,Leming Ou
The removal of arsenic has been an important issue due to the considerable harm that arsenic contamination does to the ecosystem, in this paper, calcium lignosulphonate (CLS) was the first time introduced as an environmentally friendly inhibitor for the selective Cu–As separation by froth flotation at low alkalinity, and its separation effect and mechanism was researched by flotation experiments, XPS measurements, and first-principles calculations. The single mineral and mixture mineral flotation experiment results consistently indicated that CLS can effectively realize the selective separation of arsenopyrite and chalcopyrite . The results of XPS experiment and first-principles calculation consistently indicated that CLS was selectively chemisorbed on the Fe site on the surface of arsenopyrite by forming the Fe–O bond through the interaction between sulfonate group (-SO 3 ) in its structure and surface Fe atom. However, the chemisorption of CLS on the Fe site on chalcopyrite surface was not found. Moreover, the CL 2− adsorption on arsenopyrite surface also can be promoted due to more attached Ca ion site while that on chalcopyrite surface remained weak due to the less attached Ca ion site. Overall, more LS 2− adsorption on the Fe site and attached Ca ion site on arsenopyrite surface caused the selective depression of arsenopyrite.
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CHEMICAL ENGINEERING JOURNAL
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2023
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IF 15.1
Yaoyao Zhang,Kangze Yuan,Luca Magagnin,Xishe Wu,Zhenyi Jiang,Wei Wang
Schiff base silica aerogels (SCA-X) were synthesized using amino-containing organosilanes and salicylic aldehyde as functional monomers with ethyl orthosilicate hydrolysis condensation as carrier. The influence of SCA-X on the adsorption of Pb (II) and Cu (II) under different adsorption conditions was evaluated, including the effect of solution pH, isotherm, kinetics, thermodynamics and adsorption mechanism. The batch adsorption experiments showed that SCA2 had the optimum adsorption capacity for Pb (II) (357.1 mg/g) and Cu (II) (243.9 mg/g), leading to adsorption equilibrium within 120 min and 360 min, respectively. After six adsorption–desorption cycles, SCA2 still possessed satisfactory adsorption for Pb (II) and Cu (II), demonstrating the reusability of the SCA2 adsorbent material. Kinetic studies indicated that the adsorption process could be described by a pseudo-second-order kinetic model, adsorption isotherms were in accordance with the Langmuir model, indicative of monomolecular layer adsorption. Thermodynamics evaluation revealed the nature of the adsorption process was an endothermic spontaneous process. XPS analysis combined with DFT calculations confirmed that the interaction mechanism between SCA2 and Pb (II) occurred through the coordination between the nitrogen atom donor in the Schiff base and the oxygen atom donor in the benzene ring, while the interaction between SCA2 and Cu (II) occurred mainly through the coordination between the nitrogen atom in the Schiff base and Cu (II). Life Cycle Assessment (LCA) was introduced to analyze the environmental impact of the SCA2 fabrication process and eco-friendly approaches were provided, which eventually provided theoretical evidence for the application of as-prepared material in the handling of heavy metal effluents.
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MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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2023
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IF 6.4
He Zhang,Xiao-Chun Deng,Guo-Hua Zhang
In this study, high performance W–Mo–Cu–Ni–Fe alloy samples with additions of Mo (0–6 wt%), Ni and Fe (total content: 2.5 wt% and 5 wt%) were obtained through liquid-phase sintering at lower temperature, with the raw material of ultrafine W–Mo–Cu–Ni–Fe composite powder. Ultrafine W–Mo–Cu–Ni–Fe alloy powder with strong sintering activity and uniform composition was obtained by two-stage reduction means composed of carbothermic pre-reduction and hydrogen deep deoxidation steps. Significantly, the bonding ability of W/Cu phase interface and the wettability of two phases are greatly improved due to the presences of Ni and Fe. Moreover, the addition of appropriate Mo content was advantageous to the formation of W–Mo solid solution . All alloy samples achieved higher densification degrees to guarantee that the sintered blocks possess outstanding overall performances. Especially, by adjusting Ni/Fe ratio, the highest tension strength and elongation of were achieved by W-2wt.%Mo-1.75 wt%Ni-0.75 wt%Fe-27.5 wt%Cu sintered block, which were 567 MPa and 10.37%, respectively. Moreover, owing to the presences of W–Mo and Cu–Ni–Fe solid solutions, this alloy also had the highest microhardness and bending strength of 446 HV and 1473 MPa, respectively. As increasing Mo content from 0 wt% to 6 wt%, the compression strength of sintered blocks was improved, and failure strains of all the sintered blocks are close to 100%, respectively. However, even though the Cu matrix network structure is more evenly distributed as a result of the existences of added Ni and Fe, the electronic movement ability of the sintered blocks was reduced, leading to a significant decrease in conductivity.
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ChemNanoMat
·
2023
·Vol. 9
·期 4
·e202300037
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IF 3.8
Yiqi Liang,Jun Wang,Zhidong Tian,Kezheng Shang,Xiang Hu,Jiaqi Yu,Pingwei Cai,Yangjie Liu,Jun Yuan,Yichun Ding,Zhenhai Wen
Graphical The development of Zn ion energy storage devices is seriously hindered by the drawbacks of dendrite growth, low coulomb efficiency, and volume expansion in the plating/stripping process of Zn metal electrodes. In this paper, the electrode which optimized by chemically plating Sn on Cu foam with high surface area and high HER overpotential can provide a large number of active sites for homogeneous nucleation of Zn metal and alleviate HER side reactions, thus improving the reversibility of Zn electrodeposition. Zn ion energy storage devices have received widespread attention because of their high safety, environmental friendliness, low cost, and high energy density. However, Zn metal anodes usually suffer from disadvantages such as dendrite growth, low coulombic efficiency, and volume expansion during plating/stripping, which severely hampers the practical applications. Here, we construct 3D Zn frameworks by exploring different conductive hosts and modify 3D hosts by plating Sn to suppress Zn dendrites and side reactions. The electrode which optimized by electroplating Zn after chemically plating Sn on Cu foam (Sn−Cu foam@Zn) exhibits stable polarization voltage distribution and almost 100% coulombic efficiency over 200 cycles of Zn plating/stripping. Furthermore, when pairing with V 2 O 5 cathode, the full cell showed fast reaction kinetics and a capacity of 113 mAh g −1 after 1000 cycles at a current density of 1 A g −1 , which is 90.4% of the initial capacity. This work provides a new strategy for the development of high-performance Zn anodes.
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APPLIED CATALYSIS A-GENERAL
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2023
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IF 5.5
Wenqi Zou,Heyu Li,Minghua Liu,Yuancai Lv
In this study, Cu was loaded on the surface of Ni-MOF by impregnation, and significantly improved the catalytic activity on lignin and its derivatives. The characterization showed that the non-noble bimetallic catalyst owned good dispersion, rich acid sites and stable structure was successfully synthesized. The introduced Cu reduced the reduction temperature of Ni, increased the acidity of the catalyst, and thus improved the catalytic performance and product selectivity of the catalyst. Under the mild conditions (120 °C), the conversion percentage of BPE was as high as 89.6 % using isopropyl alcohol as the hydrogen source. When the reaction temperature was 260 °C, the depolymerization percentage of corn cob lignin was 81.12 %, and the yield of phenol monomer could reach 11.46 wt. %. This work may provide an effective strategy for the preparation of efficient bimetallic catalysts for lignin hydrogenolysis .
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Journal of Materials Chemistry A
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2023
·Vol. 11
·期 20
·10766-10775
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IF 11.9
Nan Zou,Jie Chen,Ting Qiu,Ying Zheng
Direct hydrogenation of CO2 to ethanol is a highly economical carbon reduction strategy. However, the CO2 hydrogenation process traditionally requires high temperatures, typically higher than 300 °C, to activate CO2 molecules, which is unfavorable to the formation of ethanol. In contrast, we applied the novel non-thermal plasma to activate CO2 at ambient conditions and a Cu(I)-MOF catalyst to selectively synthesize ethanol for the selective transformation of CO2 into ethanol. The best catalyst, Cu(I)-HKUST-17.5, achieved 41.2% CO2 conversion and up to 62.9% ethanol selectivity under ambient conditions. The control experiments indicated that the Cu(I) sites are key to realizing C–C coupling and ethanol synthesis. An unreported synergistic catalytic mechanism between non thermal plasma and the Cu(I) and Cu(II) sites on the catalyst is proposed based on the DRIFTS analysis. Overall, our work confirms the feasibility of utilizing non thermal plasma assisted catalysis for the selective conversion of CO2 to ethanol under mild conditions.
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Biomaterials Science
·
2023
·Vol. 11
·期 10
·3589-3602
·
IF 6.6
Bo Huang,Wei Guan,Chaofeng Wang,Shuilin Wu,Zhenduo Cui,Yufeng Zheng,Zhaoyang Li,Shengli Zhu,Hui Jiang,Paul K. Chu,Xiangmei Liu
Charge transfer and separation play a critical role in the photocatalytic efficiency of photoresponsive materials and their subsequent applications. Herein, for the first time, we constructed a homo-heterostructured S–Cu–FC/CuS modified carboxymethyl cellulose (CMC) hydrogel doped with graphene oxide (GO) (S–Cu–FC/CuS/GO@CMC) through an in situ ionic complexation reaction, which exhibited enhanced photocatalytic performance under 808 nm near-infrared (NIR) light irradiation. On the one hand, photo-excited charges can rapidly transfer across the homo-heterojunction interface with copper atoms in S–Cu–FC/CuS as both donors and acceptors. On the other hand, the interface between GO and S–Cu–FC/CuS also favors the fast transfer of photogenerated charges. Hence, with the assistance of a photothermal effect, the enhanced photocatalytic performance of S–Cu–FC/CuS/GO endowed the hydrogel with robust sterilization ability for killing 99.5% S. aureus and 100.0% E. coli under 10 min NIR light irradiation. An in vivo test disclosed that this hydrogel could also accelerate the healing of bacteria-infected wounds.
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JOURNAL OF MATERIALS SCIENCE
·
2023
·Vol. 58
·期 13
·5587-5598
·
IF 4.5
Sun Shanshan,Zhang Zihao,Li Shuhan,Le Jinxun,Qian Haixia,Yin Xiaoshuang,Liu Ying,Yang Wenzhong,Chen Yun
Magnetic core–shell nanomaterial Fe 3 O 4 –SiO 2 –Cu 2 O/Cu was first successfully synthesized using an economical strategy. Using Fe 3 O 4 as a magnetic center for easy recycling and SiO 2 as the connecting layer, Cu elements were evenly and steadily distributed on the surface of the Fe 3 O 4 –SiO 2 –Cu 2 O/Cu core–shell nanostructure. The magnetic catalyst performed outstanding catalytic reduction activity for 4-nitrophenol (4-NP), and the complete catalytic reduction of 4-NP was achieved within only 5 min. What’s more, the catalyst could be well recycled, and the catalytic efficiency remained more than 90% after being reused 24 times. Graphical abstract
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危险品化学品经营许可证（带存储）