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矿物冶金与材料学报
矿物冶金与材料学报

谢建新

月刊

1674-4799

journal@ustb.edu.cn

010-62332875

100083

北京科技大学（北京海淀区学院路30号）

矿物冶金与材料学报/Journal International Journal of Minerals, Metallurgy and MaterialsCSCDCSTPCD北大核心EISCI
查看更多>>本刊是由北京科技大学主办、面向国内外专家征稿的综合性学术科技期刊，双月刊，国内外公开发行。本刊主要刊载矿业工程(Mineral)、冶金工艺(Metallurgy)、材料科学(Materials)、信息与控制(Information)等领域的最新研究成果。目前，该刊已经被SCI，EI，CA，日本《科学技术文献速报》，俄罗斯《文摘杂志》等国际著名检索机构收录。
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    Morphology engineering of ZnO micro/nanostructures under mild conditions for optoelectronic application

    Liang ChuHaoyu ShenHudie WeiHongyu Chen...
    498-503页
    查看更多>>摘要：Zinc oxide(ZnO)serves as a crucial functional semiconductor with a wide direct bandgap of approximately 3.37 eV.Solvo-thermal reaction is commonly used in the synthesis of ZnO micro/nanostructures,given its low cost,simplicity,and easy implementation.Moreover,ZnO morphology engineering has become desirable through the alteration of minor conditions in the reaction process,particu-larly at room temperature.In this work,ZnO micro/nanostructures were synthesized in a solution by varying the amounts of the ammonia added at low temperatures(including room temperature).The formation of Zn2+complexes by ammonia in the precursor regulated the re-action rate of the morphology engineering of ZnO,which resulted in various structures,such as nanoparticles,nanosheets,microflowers,and single crystals.Finally,the obtained ZnO was used in the optoelectronic application of ultraviolet detectors.
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    Preparation of silver nanoparticles through the reduction of straw-extracted lignin and its antibacterial hydrogel

    Lou ZhangShuo LiFu TangJingkai Zhang...
    504-514页
    查看更多>>摘要：Silver nanoparticles(Ag NPs)have attracted attention in the field of biomaterials due to their excellent antibacterial property.However,the reducing and stabilizing agents used for the chemical reduction of Ag NPs are usually toxic and may cause water pollution.In this work,Ag NPs(31.2 nm in diameter)were prepared using the extract of straw,an agricultural waste,as the reducing and stabilizing agent.Experimental analysis revealed that the straw extract contained lignin,the structure of which possesses phenolic hydroxyl and methoxy groups that facilitate the reduction of silver salts into Ag NPs.The surfaces of Ag NPs were negatively charged due to the en-capsulation of a thin layer of lignin molecules that prevented their aggregation.After the prepared Ag NPs were added to the precursor solution of acrylamide,free radical polymerization was triggered without the need for extra heating or light irradiation,resulting in the rapid formation of an Ag NP-polyacrylamide composite hydrogel.The inhibition zone test proved that the composite hydrogel possessed excellent antibacterial ability due to the presence of Ag NPs.The prepared hydrogel may have potential applications in the fabrication of biomedical materials,such as antibacterial dressings.
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