One-step synthesis of Ti3+ doped TiO2 single anatase crystals with enhanced photocatalytic activity towards degradation of methylene blue

One-step synthesis of Ti3+ doped TiO2 single anatase crystals with enhanced photocatalytic activity towards degradation of methylene blue
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一步合成 Ti3 掺杂 TiO2 单锐钛矿晶体,增强光催化降解亚甲基蓝的活性

DOI:
10.1016/j.matlet.2015.09.133
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发表时间:
2016
期刊:
影响因子:
3
通讯作者:
Haiqian Zhang
Haiqian Zhang
中科院分区:
材料科学3区
文献类型:
--
作者:
Yousong Liu;Bin Quan;Guangbin Ji;Haiqian Zhang

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本研究通过钛粉、盐酸和氢氟酸的水热反应合成了掺钛锐钛矿型二氧化钛单晶。掺杂Ti3+的TiO2单晶具有截断的双锥纳米结构,颗粒尺寸在100~500 nm之间,与TiO2HCl和纯TiO2相比,具有更好的可见光吸收性能。亚甲基蓝(MB)的光解实验表明,掺Ti3+的TiO2单晶表现出比TiO2HCl更高的分解速率,未掺杂的TiO2样品受益于Ti3+的掺杂,提高了光吸收能力和光生电子-空穴对的浓度。
In the present study, Ti3+doped TiO2single anatase crystals were synthesized via a facile hydrothermal reaction between Ti powder, HCl and HF. The Ti3+doped TiO2single crystals possess truncated bipyramidal nanostructure with particle size ranging from ca. 100 nm to 500 nm and demonstrate better visible light absorption as compared to TiO2–HCl and pure TiO2samples. Photo-decomposition of methylene blue (MB) experiment shows that Ti3+doped TiO2single crystals showed higher decomposition rate than TiO2–HCl and undoped TiO2samples benefited from the Ti3+doping, which improved the light absorption ability and concentration of photo-generated electron-hole pairs.
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