Visible Light-Induced Degradation of Methylene Blue on S-doped TiO2
Visible Light-Induced Degradation of Methylene Blue on S-doped TiO2
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DOI：
10.1246/cl.2003.330
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发表时间：
2003-03
影响因子：
1.6
通讯作者：
T. Umebayashi;T. Yamaki;Sigeru Tanaka;K. Asai
中科院分区：
文献类型：
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作者：
T. Umebayashi;T. Yamaki;Sigeru Tanaka;K. Asai
以二硫化钛（TiS 2）为原料，采用氧化退火法制备了硫掺杂TiO 2光催化剂。TiS 2在空气中退火后转变为TiO 2。残余的S原子占据了TiO 2中的O原子位，形成Ti-S键。S掺杂导致TiO 2的吸收边向低能区移动。因此，吸附在S-掺杂的TiO 2上的亚甲基蓝通过可见光照射被光催化分解。
A sulfur (S)-doped titanium dioxide (TiO2) photocatalyst was synthesized by oxidative annealing of titanium disulfide (TiS2). TiS2 turned into anatase TiO2 when annealed in air. The residual S atoms occupied O-atom sites in the TiO2 to form Ti–S bonds. The S doping caused the absorption edge of TiO2 to be shifted into the lower energy region. Consequently, methylene blue adsorbed on the S-doped TiO2 was photocatalytically decomposed by visible light irradiation.