Preparation, Characterization, and Photocatalytic Activity of N, S‐Codoped TiO2 Nanoparticles
Preparation, Characterization, and Photocatalytic Activity of N, S‐Codoped TiO2 Nanoparticles
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DOI：
10.1111/j.1551-2916.2009.02951.x
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发表时间：
2009-04
影响因子：
3.9
通讯作者：
Yingying Lv;Yan-Juan Ding;Jiahong Zhou;Wenmin Xiao;Yuying Feng
中科院分区：
文献类型：
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作者：
Yingying Lv;Yan-Juan Ding;Jiahong Zhou;Wenmin Xiao;Yuying Feng
用各种金属或非金属元素掺杂二氧化钛（TiO 2）已被认为是将光活性波长范围扩展到可见光的有效策略。本文采用溶胶-凝胶法制备了（N [N]和S [S]）共掺杂的TiO 2纳米粒子，并对其进行了高温热处理。采用X射线衍射、紫外-可见吸收光谱和X射线光电子能谱对样品进行了表征。在紫外光和太阳光照射下，N，S共掺杂的TiO 2纳米粒子对亚甲基蓝的光催化降解活性均比纯的、N或S掺杂的TiO 2高.
The doping of titanium dioxide (TiO2) with various metal or nonmetal elements has been considered as an effective strategy to extend the photoactive wavelength region to visible light. In this paper (nitrogen [N] and sulfur [S])-codoped anatase TiO2 nanoparticles were prepared via a sol–gel route, followed by a heat treatment at elevated temperatures. The as-prepared samples were extensively characterized by X-ray diffraction, UV–Vis absorption spectroscopy, and X-ray photoelectron spectroscopy. The N, S-codoped TiO2 nanoparticles showed a strong visible light absorption and exhibited an enhanced photocatalytic activity for the degradation of methylene blue as compared with the pure, N- or S-doped TiO2 under either UV light or solar light irradiation.