Authors: Jianjun Ding Song Sun Jun Bao Zhenlin Luo Chen Gao
Publish Date: 2009/01/30
Volume: 130, Issue: 1-2, Pages: 147-153
Abstract
A type of CaIn2O4 particle was synthesized at a relatively low temperature by a solutioncombustion method using calcium nitrate and indium nitrate as oxidizers and glycine as a fuel followed by a hightemperature postannealing during which the nanometric grains of the ascombusted CaIn2O4 powder selfassembled into nanocapsules and subsequently the nanocapsules linked end to end to form the regular CaIn2O4 rods with the diameter of 300 nm and the length of about 2 μm The CaIn2O4 rods showed significantly higher photocatalytic activity for methylene blue degradation and toluene oxidation under visiblelight irradiation than that of the sample synthesized by the conventional solidstate reaction Particularly the Ptdispersed CaIn2O4 rods exhibited excellent photocatalytic activity for water decomposition under visiblelight irradiation The high crystallization degree low impurity level and relatively large surface area of CaIn2O4 rods were considered as the important factors for its high photocatalytic performance
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