Visible-light Photocatalytic Activity of Sn2+-doped TiO2 and Its Loading Effect on Mesoporous Montmorillonite
Source abstract
Abstract
分别以氯化锡和氯化亚锡为Sn源, 使用溶胶?凝胶法制备出不同掺杂量的Sn-TiO 2 , 比较了Sn 2+ 与Sn 4+ 对掺杂后TiO 2 可见光催化活性的影响. 实验结果显示, Sn 2+ 与Sn 4+ 均能显著抑制TiO 2 晶粒生长, 并促进其晶型转变. 但Sn 2+ -TiO 2 的可见光催化活性却明显优于Sn 4+ -TiO 2 , 这主要是Sn 2+ 外层半充满的电子轨道结构引起的. 将可见光催化活性很高的Sn 2+ -TiO 2 负载于大比表面积、高稳定性的介孔蒙脱石上, 由于载体与Sn-TiO 2 之间发生了相互作用,负载后样品的UV-Vis光谱吸收边相对于Sn-TiO 2 发生了显著红移, 且可见光催化活性也有大幅提高.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Pigment Synthesis and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (8)
Show source-provided references
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