State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350002, People's Republic of China.
Environ Sci Technol. 2010 Feb 15;44(4):1380-5. doi: 10.1021/es902702v.
Nanosized porous In(OH)(3) photocatalysts with high surface areas (as much as 110 m(2)*g(-1)) were successfully synthesized by peptization of colloidal precipitates under ultrasound radiation. The resulting catalysts were characterized by X-ray powder diffraction (XRD), thermogravimetric analysis, nitrogen adsorption, transition electron microscopy, and UV-vis diffuse reflection spectroscopy. The photocatalytic activities of the samples were evaluated by the gas-phase decomposition of several volatile organic pollutants (acetone, benzene, and toluene) under UV light illumination and were compared with that of the commercial titania (Degussa P25). Results revealed that the as-synthesized In(OH)(3) exhibited much higher photocatalytic activity and durability than both In(2)O(3) and TiO(2). One, therefore, can conclude that nanosized In(OH)(3) has potential application in environmental treatment, especially in the removal of benzene-containing exhaust emissions from shoemaking plants in China. The excellent photocatalytic performance of In(OH)(3) can be attributed to its strong oxidation capability, abundant surface hydroxyl groups, and high BET surface area as well as the porous texture.
纳米多孔 In(OH)(3)光催化剂具有高的比表面积（高达 110 m(2)*g(-1))，通过超声辐射下胶体沉淀物的胶溶作用成功合成。所得催化剂用 X 射线粉末衍射（XRD）、热重分析、氮气吸附、透射电子显微镜和紫外可见漫反射光谱进行了表征。通过在紫外光照射下气相分解几种挥发性有机污染物（丙酮、苯和甲苯）来评价样品的光催化活性，并与商业二氧化钛（Degussa P25）进行了比较。结果表明，所合成的 In(OH)(3)表现出比 In(2)O(3)和 TiO(2)更高的光催化活性和耐久性。因此，可以得出结论，纳米 In(OH)(3)具有在环境处理，特别是在中国鞋厂去除含苯废气排放方面的潜在应用。In(OH)(3)的优异光催化性能归因于其强氧化能力、丰富的表面羟基和高 BET 比表面积以及多孔结构。
