WO_(3)/TiO_(2)/{001}的合成和光催化性能研究  

Preparation of WO_(3)/TiO_(2)/{001} and study on photocatalytic performance

作　　者：张乐 王娜娜 张亚非[1] 王剑峰[1] ZHANG Le;WANG Nana;ZHANG Yafei;WANG Jianfeng(School of Chemical Engineering and Energy,Zhengzhou University,Zhengzhou 450001,He'nan,China;Pingdingshan Environmental Monitoring Center Station,Pingdingshan 467000,He'nan,China)

机构地区：[1]郑州大学化工与能源学院,河南省郑州市450001 [2]平顶山市环境监测中心站,河南省平顶山市467000

出　　处：《计算机与应用化学》2019年第5期522-524,共3页Computers and Applied Chemistry

基　　金：NSFC-河南人才培养联合基金项目(U1204215);国家自然科学青年基金资助项目(21206150NSFC)

摘　　要：利用浸渍焙烧法,将暴露{001}晶面的TiO_(2)与WO_(3)成功进行了复合改性。利用XRD、FT-IR、SEM、UV-Vis、等表征手段对复合材料进行表征,结果表明复合材料不影响暴露的{001}晶面比例,且复合材料WO_(3)/TiO_(2)/{001}对紫外光和可见光的吸收均有所增强的吸收边均有明显红移。以罗丹明B为目标污染物,可见光下的光催化降解实验结果表明:WO3的最佳复合量为0.5%,降解效率可达97.5%,均优于TiO_(2)/{001}的87.5%。TiO_(2) with exposed{001}facets was successfully composited with WO_(3) by an impregnation and calcination method.The as-prepared composites were characterized by various types of techniques including Xraydiffraction(XRD),Fourier transform infrared spectra(FTIR),scanningelectron microscopy(SEM),UV-Vis diffuse reflectionspectroscopy(UV-Vis).The results showed that composite materials didn’t experience the loss of the percentage of exposed{001}facets.Absorption strength of composite material in the ultraviolet and visible light region increased and the absorption edge of WO_(3)/TiO_(2)/{001}composites was red shifted obviously.The photocatalytic activity of composite materials was evaluated and the result showed that the efficiency of degradation of the composite WO_(3)/TiO_(2)/{001}could reach 97.5%,which is higher than 87.5%of pure{001}TiO2.The best optimized loaded contentof WO_(3) is 0.5 wt%.

关 键 词：浸渍焙烧 WO_(3)/TiO_(2)/{001} 罗丹明B 可见光 

分 类 号：TQ031.2[化学工程] O643[理学—物理化学] TQ032[理学—化学]