Journal of Materials Chemistry A
·
2024
·
IF 10.7
Haoxuan Li,Jinghui Wang,Mei Cui,Renliang Huang,Wei Qi,Rongxin Su
Ga based liquid metal is an ideal matrix to dissolve and disperse other metal atoms for catalysis. Seawater electrolysis is a promising alternative technology for hydrogen production in the crisis of freshwater resources. Here, we prepared dynamic Co, Pt dual-atom synergetic catalysis by dispersing Co, Pt atoms in Ga based liquid metal (denoted as Ga-CoPt). Liquid Ga boosts the dispersion, mobility and synergy of Co and Pt atoms and leads to dramatic increasement of catalytic performance for direct seawater electroreduction. Specifically, compared with solid state, the liquid Ga-CoPt shows much higher activity and stability of hydrogen evolution reaction at 100 mA cm-2 for 169 h in natural seawater, with lower overpotential (249 mV at 10 mA cm-2) and Tafel slope (145 mV/dec). Because the atomically dispersed Co, Pt atoms in liquid Ga make more active sites present at the interface of Ga-CoPt under low content of Co (5 wt%) and Pt (1 wt%). The fluidity of liquid Ga and mobility of Co, Pt atoms enhance the replenishment and regeneration of active sites in liquid Ga-CoPt, which promote the catalytic activity and stability simultaneously. Besides, the synergy of Co, Pt dual-atom in liquid Ga is confirmed that Co atom is the active site of water splitting and partial generated H species are adsorbed by Pt atom forming H*. At the same time, the other generated H species are combined with adjacent H2O generating H3O+. Subsequently, the adsorbed H* reacts with H3O+ to generate H2 by the Heyrovsky step.
研究领域:
催化
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电化学
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材料科学
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能源技术
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DOI
高影响因子
DIAMOND AND RELATED MATERIALS
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2025
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IF 5.1
Shuo Yang,Yukun Li,Yingying Fu,Mingjia Dong,Cong Chao,Sen Yao,Qiqian Huang,Shuying Dong
The primary objective of this research was to develop an efficient and stable material capable of both photocatalysis and persulfate (PDS) activation for the degradation of tetracycline (TC). To this end, a composite material, g-C 3 N 4 /Cu x O/GA (CNCuGA), was synthesized via an optimized hydrothermal assembly method. The physicochemical, microstructural, and photoelectric properties were systematically characterized, establishing a CNCuGA/SSL/PDS system to evaluate key parameters (doping rate, catalyst amount, PDS and TC concentrations, initial pH, and co-existing components) on TC degradation under simulated sunlight. Under optimal conditions (15 % doping ratio, 0.2 g·L −1 catalyst, 20 mg·L −1 PDS and 20 mg·L −1 TC), the CNCuGA-3/SSL/PDS system achieved 93.6 % (0.04223 min −1 ) TC removal within 60 min, surpassing the GA/SSL/PDS system (55.4 %, 0.00922 min −1 ) by a factor of 4.58. Mechanistic studies indicated that the enhanced performance originated from accelerated photogenerated electron transfer and prolonged electron lifetime, which promoted reactive species generation, along with the critical role of the Cu(I)/Cu(II) redox cycle in enabling persistent PDS activation. CNCuGA-3 also exhibited excellent recyclability over five cycles, with minimal metal leaching, while the treated solution showed high mineralization efficiency and low biological toxicity. These results collectively demonstrated the promise of CNCuGA-3 as a durable and effective catalyst for solar-driven antibiotic wastewater treatment.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Fanghai Liu,Hui Jiang,Zhanchuang Lu,Yanpeng Gao,Jiafa Li,Lin Zhou,Syed Aamir Hussain,Ping Chen,Xianghua Wang,Lei Chen
It is promising to develop next-generation indoor and outdoor flexible electroluminescent light sources, as thin as wallpaper, by converting electric energy into light directly based on semiconductor quantum dots (QDs). This work reports a sunlike full-spectrum electroluminescent white light-emitting diode (WLED) fabricated by spin-coating the mixture of yellow-green, red, and blue QDs at once, adopting the device structure of ITO/PEDOT:PSS/PVK(PTAA)/Mixed QDs/ZnO:Mg (AP-ZnO)/Al(Ag). The yellow-green and red QDs are prepared by coating three-layer ZnS shells on the CuInS2 cores, which are synthesized using sulfur powder and dodecanethiol (DDT) as sulfur source, respectively. The blue QDs are prepared by coating three-layer ZnS shells on ZnCuGaS2 cores. The photoluminescence quantum yield (PLQY) of the yellow-green, red, and blue QDs is 82%, 89%, and 83%, respectively. The WLED emits warm white light with a color temperature of 3000 K, chromaticity CIE (0.4228, 0.4287), and color rendering index (CRI) Ra 92.4. The electroluminescence spectrum of the device, whose similarity to the solar spectrum reaches 91.7% in the wavelength region of 450–700 nm, is rich in the red component and poor in the blue component, showing great potential for future healthy lighting applications.
研究领域:
材料科学
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光电子学
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纳米技术
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半导体物理
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照明技术
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DOI
PubMed
高影响因子
Fuel Cells
·
2017
·Vol. 17
·期 5
·723-729
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IF 1.706
Y. Yi,J. Huo,W. Wang
Molecular simulation method was firstly used for analyzing the energy of aluminum alloy systems alloyed by Mg, Ga, Zn and Mn. Based on the analyses, Al-Mg, Al-Ga, Al-Zn, Al-Mn alloys were metallurgically prepared. The structures, electrochemical activities and utilization ratios were characterized by X-ray diffraction patterns (XRD), anodic polarization measurement and galvanostatic discharge. The calculated energies of the aluminum alloy systems increase in the following order: Al< Al-Mn < Al-Mg < Al-Zn < Al-Ga. The absolute values of the open circuit potentials of the alloys measured in alkaline solution rank in the following orders: φ Al-Ga alloy > φ Al-Zn alloy > φ Al-Mg alloy > φ Al-Mn alloy and the order is consistent with the calculated energies. The results indicate that molecular simulation based on the first-principles is a useful method in the alloying design and thermodynamic performance prediction. Alloy additives Zn and Ga effectively change the open circuit potential of metal aluminum to a more negative potential. In addition, alloy additive Zn increases the charge transfer resistance of Al→Al 3+ , which decreases the discharge current density. Alloy additive Mg diminishes the grain size of the alloy and notably enhances the discharge current density. Alloy additive Mn improves the utilization ratio remarkably when discharging in alkaline solution.
研究领域:
材料科学
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电化学
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计算材料学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Lifeng Yang,Yirun Yang,Yi Zhu,Huajiang Zuo,Dongmei Deng
Cu(II) contamination in industrial wastewater constitutes a major challenge to global environmental management as traditional treatment methods are plagued by high energy consumption, secondary pollution risks, and substantial costs. A technical strategy was developed to prepare glutaraldehyde-crosslinked sodium alginate-zeolite (SA-HZ/GA) composite adsorption membranes via phase inversion. This approach leverages zeolites' structural reinforcement and mass transfer channel formation combined with glutaraldehyde's crosslinking properties to optimize material performance. SA-HZ/GA features abundant mesopores with sizes ranging from 2 to 16 nm and exhibits fracture strength over 74% higher than pure sodium alginate membranes. At pH 5 and 25°C, its Cu(II) adsorption capacity reaches 46.80 mg/g with over 80% removal efficiency maintained after 5 cycles with 0.1 M HCl as desorbent. The adsorption process fits the Langmuir model ( R 2 = 0.999) and follows pseudo-second-order kinetics, indicating monolayer chemical adsorption. Thermodynamic analysis revealed that the adsorption was spontaneous (Δ G = −12.5 kJ/mol) and endothermic (Δ H = 28.4 kJ/mol), with a positive entropy change (Δ S = 0.14 kJ/(mol·K)) suggesting increased randomness at the solid–liquid interface. This work provides an efficient, stable, and cost-effective engineering solution for heavy metal-laden wastewater treatment.
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高影响因子
CERAMICS INTERNATIONAL
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2025
·
IF 5.6
Minghua Wang,Dan Guo,Bochong Wang,Jianyong Xiang,Kun Zhai,Tianyu Xue,Fusheng Wen,Yingchun Cheng,Congpu Mu
In this work, MIL-96 (Ga) was successfully synthesized by a microwave-assisted method and pyrolyzed at 700 o C to obtain Ga 2 O 3 /C (G-700) composites. After carbonization, Ga 2 O 3 nanoparticles were uniformly embedded in a porous carbon skeleton. The surface of MIL-96(Ga)-derived Ga 2 O 3 /C was used as a template for directional pyrrole polymerization. G-700@PPy composite materials were obtained by in-situ polymerization of pyrrole on the surface of G-700. A hierarchical interfacial structure was created with regulated dielectric properties. The effect of pyrrole doping content on the electromagnetic waves (EMWs) absorption properties of G-700@PPy composite materials was studied. The experimental result showed that the minimum reflection loss ( RL min ) value of G-700@PPy-3 composite materials reached -79.0 dB under a thin thickness of 1.58 mm, and the maximum effective absorption bandwidth (EAB) of 5.66 GHz was obtained under 1.78 mm. The results indicate that highly conductive PPy could significantly improve the impedance matching conditions and electromagnetic attenuation capacity of G-700 composite materials, which provided an important idea for optimizing the microwave absorption properties of low permittivity composites.
研究领域:
材料科学
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电磁学
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DOI
高影响因子
Reaction Kinetics Mechanisms and Catalysis
·
2022
·Vol. 135
·期 4
·2231-2246
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IF 1.843
Luo Qiuzi,Sun Yihua,Guo Jin,Zhang Jiangyu,Fang Liang
The properties of ZnO nanoparticles doped with titanium ions (Ti 4+ ) and gallium ions (Ga 3+ ) were modified by sol–gel method. Considering the ion radius of doped metal elements, the radius of Zn ions and the doping limit of ZnO, the doping rate of Ti is fixed at 1 atom%, and the optimal doping amount of Ga is discussed. The Ga/Ti co-doped ZnO nanoparticles were characterized by X-ray diffraction (XRD), ultraviolet/visible spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and infrared spectroscopy. XRD results show that Ga/Ti co-doped ZnO has hexagonal wurtzite phase structure. With the increase of Ga doping concentration, the particle size of ZnO decreases. Through photoluminescence analysis, it is found that the absorption of Ga/Ti co-doped ZnO in the visible region moves to the long wave direction. In addition, with the increase of Ga doping, the particle size of GTZ powder first decreases and then increases, the band gap also decreases and then increases. When the doping amount of Ga is 1.5 atom%, the photocatalytic activity is the best. The degradation rate of MB was 90% within 2.5 h. Ga/Ti co-doped ZnO nanoparticles have good photocatalytic properties and low cost. They are a promising catalyst for wastewater treatment.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Pigment & Resin Technology
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2024
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IF 1.3
Zhichuang Qi,Jingshan Chen,Zhangmi Huang,Chunyan Hu,Baojiang Liu
PurposeThis paper aims to prepare Poly(Styrene-Butyl acrylate-Methacrylic acid) @Poly Gallic acid-Fe3+photonic crystal composite inks [P(St-BA-MAA)@PGA-Fe3+PCCI, @ means the PGA-Fe3+is loaded on the microspheres] and construct noniridescent structural colors on fabric substrates, with the goal of improving the visibility of structural colors.Design/methodology/approachP(St-BA-MAA)@PGA-Fe3+PCCI were prepared by coating P(St-BA-MAA) microspheres with a metal-polyphenol network formed by gallic acid (GA, C7H6O5) and Fe3+. The assembly effects of the inks were explored under different conditions, including pH, temperature, concentration and surface tension. The optimal self-assembly conditions of the inks were determined using the controlled variable method.FindingsThe results demonstrated the successful preparation of P(St-BA-MAA)@PGA-Fe3+PCCI. The metal polyphenol network film composed of GA and Fe3+was successfully coated on the surface of P(St-BA-MAA) seed microspheres. The assembly mechanism of the inks was investigated, indicating that at a diethylene glycol (DEG, C4H10O3) concentration of 0.3 wt% and pH of 7, bright noniridescent structural colors could be formed on fabric surfaces after self-assembly by PCCI at 60 °C for 10 min. Furthermore, the mechanical fastness of the structural colors was enhanced due to the adherence of the soft shell composed of P(St-BA-MAA) and GA.Originality/valueUtilizing a cost-effective approach and a diverse array of readily available raw materials, we have successfully prepared P(St-BA-MAA)@PGA-Fe3+PCCI, which boasts superior performance and offers fabrics a range of unique coloring styles. This innovation paves the way for potential applications of structural colors in practical production, thereby broadening their realm of utility.
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高影响因子
INORGANIC CHEMISTRY
·
2024
·
IF 4.3
Xiaowei Yang,Yanfei Zou,Chen Hu,Shikun Su,Zhenghang Wang,Houhe Dong,Wenying Teng,Bing Teng,Bingtao Zhang,Degao Zhong
Cr4+-activated phosphors are important candidate materials for NIR-II light sources, but providing a suitable lattice coordination environment for Cr4+ and achieving long wavelength broadband emission remains a challenge. In this work, a series of Cr4+-activated ABO2 (A = Li, Na; B = Al, Ga) phosphors were successfully prepared. Due to the presence of only tetrahedral coordination structures available for Cr4+ to occupy in the matrix crystal ABO2, the valence state and luminescence stability of Cr4+ are effectively guaranteed. Through the cation substitution design of A-site (Na → Li) and B-site (Ga → Al), the [BO4] tetrahedron is distorted and expanded, which degrades the symmetry of the Cr4+ coordination crystal field. Consequently, the central wavelength of the Cr4+ emission peak is tuned from 1280 to 1430 nm, and the fwhm is significantly extended from 257 to 355 nm. Thebroadband NIR-II light sources constructed with LiAlO2: 0.03Cr4+ and NaGaO2: 0.03Cr4+ phosphors verify their important potential applications in nondestructive testing and biological imaging.
研究领域:
材料科学
·
光学材料
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固态化学
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光子学
·
近红外光源
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DOI
高影响因子
Advanced Fiber Materials
·
2023
·Vol. 5
·期 6
·2080-2098
·
IF 16.1
Yan Biaobiao,Bao Xueming,Gao Yilei,Zhou Man,Yu Yuanyuan,Xu Bo,Cui Li,Wang Qiang,Wang Ping
Two-dimensional transition metal carbide/nitride (MXene)-based textiles have been developed in many fields; however, the high sensitivity to oxidation and weak interfacial bonding hinder their applications. Herein, we present a strategy for the preparation of a highly antioxidative MXene@gallic acid (MXene@GA, MG) hybrid dispersion, and further covalently grafted it onto carboxylated cotton fabric through interaction with metal ions (Fe 3+ ) for fabricating wearable multifunctional textiles. Due to the cross-linking effect of Fe 3+ and the remarkable antioxidant activity of natural polyphenol GA, the MG coatings firmly adhere to the textile surfaces and can withstand conventional washing, exhibiting favorable service stability and potential application prospects. Moreover, the obtained MG-decorated textile has the inherent characteristics of good breathability, moisture permeability, flexibility, and biocompatibility of the original fabric, which are conducive to the wearability of smart devices. Furthermore, by utilizing the outstanding conductivity (~ 330 S/m) and photothermal convertibility of the MG coating, the functional textile achieves high electromagnetic interference (EMI) shielding efficiency (~ 35 dB), excellent dual-driven ( Joule and solar) heating warmth retention, and infrared thermal camouflage. Due to the green and scalable preparation process, favorable durability, excellent comfort, and multifunctionality, the MG-decorated textiles are anticipated to be promising candidates for the next generation of smart wearable personal protective clothing. Graphical Abstract
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高影响因子
JOURNAL OF LUMINESCENCE
·
2018
·
IF 2.732
Ze Min Hu,Guang Tao Fei,Li De Zhang
The Cu-Ga-S/ZnS quantum dots (QDs) emitting green-to-red light are successfully synthesized by the conventional hot-injection method. In the preparation process, 1-dodecanethiol (DDT) is not only used as the solvent but also the sulfur precursor and ligand. Therefore, all reactants are additives, which can reduce solution contamination. The peak wavelength of Cu-Ga-S/ZnS QDs' emission can be tuned from 520 to 619 nm by changing Cu/Ga stoichiometry . And these quantum dots have narrow full-width at half maximum wavelength of about 75 nm. Furthermore, a white quantum-dot-based light-emitting diode is obtained by depositing the yellow Cu-Ga-S QDs on a blue InGaN chip.
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高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 38
·18649-18659
·
IF 9.931
Zheming Liu,Aiwei Tang,Jun Liu,Dongxu Zhu,Xifeng Shi,Qinghua Kong,Zhijie Wang,Shengchun Qu,Feng Teng,Zhanguo Wang
Multinary copper-based chalcogenides have been exploited in photocatalytic hydrogen generation due to their exceptional visible light absorption properties and environmentally friendly character. Similar to other photocatalysts, to reinforce the charge separation and transfer is one of the most important pathways to enhance photocatalytic hydrogen evolution, which can be achieved by rationally designing the nanostructures and geometries of multinary copper-based chalcogenides. Herein, an improved photocatalytic hydrogen evolution is successfully realized in L-shaped Cu–Ga–Zn–S (CGZS) alloyed nanorods compared with the binary Cu31S16 and ternary CuGaS2 nanocrystals. The L-shaped wurtzite CGZS nanorods with a uniform spatial composition distribution are synthesized via a non-injection solution approach for the first time. The successive incorporation of zinc and gallium ions into Cu31S16 seeds leads to formation of Cu31S16–ZnS and Cu31S16–CGZS heteronanostructures and finally results in the formation of single phase CGZS nanorods. The intrinsic features of L-shaped wurtzite CGZS nanorods offer efficient spatial charge separation and electrical transport, which contribute synergistically to the improved photocatalytic activity. This study provides a new way to develop novel multinary copper-based chalcogenides with flexible nanostructures for efficient photocatalytic hydrogen production.
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高影响因子
危险品化学品经营许可证（带存储）