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载银氧化锌多孔微棒的合成与光催化性能(英文) 被引量：4

Preparation and photocatalytic performance of porous ZnO microrods loaded with Ag
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摘要 采用均匀沉淀法于80°C下水热2h合成棒状掺银酒石酸锌,以此为前驱体通过直接热分解制备不同含银量的多孔载银氧化锌微米棒。利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、紫外可见光谱(UV-VIS)和傅里叶红外光谱(FTIR)等手段对所得产物的结构和形貌进行表征,并进一步研究多孔载银氧化锌的光催化活性。结果表明:银的掺入提高了多孔氧化锌的光催化效率。掺杂量为3%(摩尔分数)的多孔氧化锌微棒的光催化效率最高,在120min内可使80%的甲基橙降解,且在太阳光下显示良好的光催化活性。 Porous silver-modified ZnO microrods photocatalysts were synthesized through direct thermal decomposition of the Ag-doped zinctartrate precursor,which was prepared by homogeneous precipitation method at 80 °C for 2 h.The obtained samples were characterized by XRD,FTIR,TG？DTA and UV-VIS absorption spectroscopy.The photocatalytic activity of the as-prepared porous Ag/ZnO microrods was tested with the photocatalytic degradation of methyl orange.The results indicate that doping Ag greatly improves the photocatalytic efficiency of ZnO and 3% Ag-doped（mole fraction） ZnO porous microrod photocatalyst exhibits the highest photocatalytic decolorization efficiency,leading to as much as 80% reduction of MO concentration in 120 min.Moreover,the 3% Ag-doped porous microrods also possess higher photocatalytic activity under the real sunlight irradiation.
作者 贾志刚 彭宽宽 李艳华 诸荣孙
机构地区 安徽工业大学化学与化工学院
出处 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第4期873-878,共6页 中国有色金属学报（英文版）
基金 Project (20907001) supported by the National Natural Science Foundation of China Project (KJ2010A336) supported by the University Natural Science Research Project of Anhui Province,China Project (KJ2009A010Z) supported by the Educational Commission of Anhui Province,China
关键词 Ag/ZnO 多孔材料 光催化性能 脱色 Ag/ZnO porous material photocatalytic performance decoloration
分类号 O614.241 [理学—无机化学] O643.36 [理学—物理化学]
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参考文献27

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同被引文献39

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  • 7ZHANG Bai-yu, HUANG Guo-he, LIU Miao, DONG De-ming, CHEN Bing, CHRISTINE W C. ZnO-based solar photocatalysis for treatment of Cr(VI) contamination [J]. Transactions of Nonferrous Metals Society of China, 2004, 14(1): 49-53.
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引证文献4

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Transactions of Nonferrous Metals Society of China
2012年 第4期

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