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硅钨酸/TiO2复合光催化材料光解水催化性能研究

Wen-lan LAN, Jie LI,Qi-yuan CHEN

Nonferrous Metals(Extractive Metallurgy)（2009）

Cited 8|Views7
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Abstract
采用浸渍法制备了复合杂多酸H4SiW12O40/TiO2光催化材料,并用XRD、FT-IR和UV-Vis-DRS研究了其结构形态.同时考察了H4SiW12O40/TiO2光催化剂对光解水制氧的应用研究.结果表明,H4SiW12O40/TiO2仍然保留Keggin结构,TiO2均匀固载在H4SiW12O40中,H4SiW12O40与TiO2之间仅仅是简单的物理吸附.在紫外光辐射下光催化分解水制氧的实验中,H4SiW12O40/TiO2的光催化析氧速率高达231.37 μmol/(L·h),为纯H4SiW12O40的1.37倍.
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Key words
Oxygen,Photocatalytic water splitting,Nanosized titania,Tungstosilicic acid
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