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STUDY ON PHOTOCATALYSIS ACTIVITY OF (TOURMALINE, Nd)/TiO2
Author(s): 
Pages: 233-237
Year: Issue:  2
Journal: ACTA MINERALOGICA SINICA

Keyword:  电气石钕/二氧化钛复合材料光催化活性;
Abstract: 以硝酸钕、天然矿物电气石和钛酸丁酯为原料,采用凝胶法制备了电气石复合Nd/TiO2和钕掺杂TiO2.用XRD、UV-VIS、ESR对电气石复合Nd/TiO2材料进行了表征;以苯酚为目标降解物,考察了电气石复合Nd/TiO2材料的光催化活性.结果发现TiO2的相变转化区间在600~750 ℃范围内;电气石掺入对Nd/TiO2材料的光吸收范围基本没有影响,在300~750 ℃范围煅烧后,随温度升高UV-VIS图谱有逐渐红移现象;电气石的加入使得Nd/TiO2材料在光照及未光照条件下都起到增强·OH强度的作用;在Nd/TiO2材料中掺入0.6%的电气石获得最好的光催化活性,600 ℃下煅烧光催化效果较优.
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