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ZnO纳米片的水热合成及其光催化性能
引用本文:姚方毅,刘令,郭晶晶,王川川,兰玉竹,温普红.ZnO纳米片的水热合成及其光催化性能[J].宝鸡文理学院学报(自然科学版),2018,38(2):14-18,24.
作者姓名:姚方毅  刘令  郭晶晶  王川川  兰玉竹  温普红
作者单位:宝鸡文理学院化学化工学院,陕西宝鸡,721013;宝鸡文理学院化学化工学院,陕西宝鸡,721013;宝鸡文理学院化学化工学院,陕西宝鸡,721013;宝鸡文理学院化学化工学院,陕西宝鸡,721013;宝鸡文理学院化学化工学院,陕西宝鸡,721013;宝鸡文理学院化学化工学院,陕西宝鸡,721013
基金项目:国家自然科学基金面上项目(21173003)
摘    要:目的以Zn(CH_3COO)_2·2H_2O和NaOH为原料,制备ZnO纳米粒子,并研究ZnO纳米材料的形貌对其光催化性能的影响。方法采用一步水热法合成ZnO片状纳米粒子,通过X-射线粉末衍射(XRD),场发射扫描电镜(FE-SEM)和拉曼光谱(Raman)等分析手段对合成产物的结构和形貌进行表征,探讨反应物摩尔比、水热温度和水热时间等合成条件对形成的ZnO纳米粒子形貌的影响,以及形貌演变机理。通过光催化分解水实验对所制备的ZnO纳米粒子的光催化性能进行测试。结果 Zn~(2+)/OH~-摩尔比为1∶4时,在100℃反应6h,可制得片状的纳米ZnO,其产氢量为313μmol·h~(-1)·g~(-1)。结论在本文制备的ZnO纳米材料中,ZnO纳米片的光催化性能优于短棒状和纤维状的ZnO粒子。

关 键 词:ZnO纳米片  水热法  光催化性能

Hydrothermal synthesis and photocatalytic performance of ZnO nanosheets
YAO Fang-yi,LIU Ling,GUO Jing-jing,WANG Chuan-chuan,LAN Yu-zhu,WEN Pu-hong.Hydrothermal synthesis and photocatalytic performance of ZnO nanosheets[J].Journal of Baoji College of Arts and Science(Natural Science Edition),2018,38(2):14-18,24.
Authors:YAO Fang-yi  LIU Ling  GUO Jing-jing  WANG Chuan-chuan  LAN Yu-zhu  WEN Pu-hong
Abstract:Purposes—To prepare ZnO nanoparticles with zinc acetate dihydrate and sodium hy-droxide as raw materials ,and to investigate the effect of the morphology of ZnO nanomaterials on their photoelectric performance .Methods—ZnO nanoparticles were synthesized with one-step hydro-thermal method .The effects of the molar ratio of reactants ,hydrothermal temperature and hydrother-mal time on the morphology of ZnO nanomaterials were investigated through characterizing structure and morphology of the synthesized samples with XRD ,FE -SEM and Raman .The photocatalytic properties of ZnO nanoparticles were tested with photocatalytic water splitting experiment .Results—T he sheet-like ZnO nanoarticles can be prepared w hen the molar ratio of Zn2+to O H -is 1 to 4 ,the temperature and time of chemical reaction are 100 ℃ and 6 hours ,respectively ,the amount of H2evo-lution for the ZnO is 313 μmol · h-1· g -1. Conclusion—The photoelectric performance of ZnO nanosheets is better than that of rod-shaped and fibrous ZnO particles .
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