OALib Journal期刊
金属离子掺杂对TiO2光催化性能的影响
Keywords: 金属离子 ,掺杂 ,二氧化钛 ,光催化
Abstract:
TiO2光催化反应过程涉及光生电荷、电荷迁移、电荷在TiO2表面的反应和溶液体相反应4个顺序相接并相互影响的步骤.在TiO2中掺杂金属离子对以上4个步骤均有重要影响,合理的掺杂可有效地提高其光催化性能.本文综合了国内外此方面的最新研究成果,从提高TiO2光催化性能和优化光催化反应的角度出发,在材料吸光能力、电荷扩散、表面反应、粒径和晶型等方面,全面地分析总结了金属离子掺杂的影响效果和规律性认识,并对TiO2基光催化材料的金属离子掺杂改性研究的未来发展方向提出了建议.文中还简要介绍了相关的掺杂方法和材料表征手段.
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