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用IR、Raman和DRS光谱研究了SO2-4/TiO2 光催化剂和TiO2光催化剂的光谱行为差别.结果表明,TiO2光催化剂的表面只有L酸中心,而SO2-4/TiO2光催化剂表面既有L酸中心也有B酸中心. TiO2的硫酸化有效地抑制了晶相转变和晶粒度的增加.与TiO2相比,SO 2-4/TiO2光催化剂的锐钛矿相含量较多、晶粒较小、光谱吸收边蓝移,从而增大了光吸收阈值,增强了光生空穴和电子的氧化及还原能力.
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光谱学与光谱分析
ISSN: 1000-0593
CN: 11-2200/O4
Year: 2000
Issue: 5
Volume: 20
Page: 655-657
0 . 7 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 6
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