Enhanced nitrogen doping in TiO2 nanoparticles
Enhanced nitrogen doping in TiO2 nanoparticles
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DOI：
10.1021/nl034332o
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发表时间：
2003-08-01
期刊：
影响因子：
10.8
通讯作者：
Gole, JL
中科院分区：
文献类型：
--
作者：
Burda, C;Lou, YB;Gole, JL
采用直接胺化法制备了粒径为6-10 nm的TiO 2（-）N-x（x）纳米粒子。纳米级的掺杂导致氮浓度提高到8%，而薄膜和微米级的TiO 2粉末中的氮浓度小于或等于2%。合成的TiO 2- N-x（x）纳米晶体具有催化活性，并且在高达600 nm的可见光区域内吸收良好，因此举例说明了基于纳米结构的合成作为生产新型光催化材料的手段的用途。
TiO2 (-) N-x(x) nanoparticles were prepared by employing the direct amination of 6-10-nm-sized titania particles. Doping on the nanometer scale led to an enhanced nitrogen concentration of up to 8%, compared to less than or equal to2% in thin films and micrometer-scale TiO2 powders. The synthesized TiO2 - N-x(x), nanocrystals are catalytically active and absorb well into the visible region up to 600 nm, thus exemplifying the use of a nanostructure-based synthesis as a means of producing novel photocatalytic materials.