李沙沙.TiO2/WO3复合材料的制备及其光催化性能[J].有色金属工程,2018,8(2):39-43.
TiO2/WO3复合材料的制备及其光催化性能
Preparation of Composite TiO2/WO3 and its Photocatalytic Properties
投稿时间:2016-12-22  修订日期:2017-03-09
DOI:10.3969/j.issn.2095-1744.2018.02.008
中文关键词:  水热法  TiO2/WO3复合材料  光催化活性  光降解
英文关键词:hydrothermal method  TiO2/WO3 composite  photocatalytic activity  photodegradation
基金项目:国家大学生创新创业训练计划项目(201610379019);安徽省教育厅高校自然科学基金重点项目(KJ2016A888);安徽省大学生创新创业训练计划项目(201610379199);宿州学院科研平台项目(2016ykf04)
  
作者单位
李沙沙 宿州学院
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中文摘要:
      以钨酸钠和钛酸四丁酯为原料,采用一步水热法制备了TiO2/WO3复合光催化剂。利用XRD、SEM、BET和Raman等手段表征了催化剂的形貌、结构等性能。并以亚甲基蓝为模型污染物,研究了TiO2/WO3复合材料的光催化活性。结果表明:通过水热法制备的纯WO3和TiO2/WO3复合材料均为单斜晶相,复合材料呈微米线状结构,分散均匀。光降解实验显示,纯WO3对亚甲基蓝的降解率仅达到71.52%,掺杂TiO2后可显著提高WO3的光催化活性,经过70 min光照后,对10 mg/L亚甲基蓝溶液的脱色效果明显,降解率达到85.76%。
英文摘要:
      Composite photocatalysts TiO2/WO3 were prepared by hydrothermal method using sodium tungstate and tetrabutyl titanate as raw materials. The structural and morphology of TiO2/WO3 were characterized by XRD、SEM、BET and Raman. The results show that WO3 in the TiO2/WO3 is in monoclinic phase, composite material is micro linear structure with uniform dispersion. The photodegradation of MB was used to evaluate the photocatalytic activity of the catalysts. 71.52% and 85.76% MB are degraded by WO3 and TiO2/WO3 within 70 min. The decolorization experiment for MB solution (10 mg/L) indicated its excellent decolorization performance.Composite photocatalysts TiO2/WO3 were prepared by hydrothermal method using sodium tungstate and tetrabutyl titanate as raw materials. The structural and morphology of TiO2/WO3 were characterized by XRD、SEM、BET and Raman. The results show that WO3 in the TiO2/WO3 is in monoclinic phase, composite material is micro linear structure with uniform dispersion. The photodegradation of MB was used to evaluate the photocatalytic activity of the catalysts. 71.52% and 85.76% MB are degraded by WO3 and TiO2/WO3 within 70 min. The decolorization experiment for MB solution (10 mg/L) indicated its excellent decolorization performance.
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