Synthesis of In2O3/BiOCl Composite Photocatalyst and its Photocatalytic Activity for the Degradation of Rhodamine B under Visible Light Irradiation
Synthesis of In2O3/BiOCl Composite Photocatalyst and its Photocatalytic Activity for the Degradation of Rhodamine B under Visible Light Irradiation
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DOI：
10.4028/www.scientific.net/amr.747.635
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发表时间：
2013-08
期刊：
影响因子：
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通讯作者：
G. Zhu;M. Hojamberdiev;Ken‐ichi Katsumata;N. Matsushita;K. Okada;Peng Liu;J. Zhou
中科院分区：
文献类型：
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作者：
G. Zhu;M. Hojamberdiev;Ken‐ichi Katsumata;N. Matsushita;K. Okada;Peng Liu;J. Zhou
本文报道了10wt%In_2O_3/BiOCl复合光催化剂的合成及其光催化活性。采用简单的化学共沉淀法在室温下合成了10wt%In2O3/BiOCl复合光催化剂，然后在400 °C下热处理2 h。在400 °C热处理2 h期间，In 2 O3发生非晶-晶相转变。纯BiOCl具有由具有单晶性质的纳米片组成的花状纳米结构。当In 2 O3的质量分数为10%时，复合光催化剂的形貌主要由BiOCl纳米花和In 2 O3纳米粒子两种不同形态的粒子组成。以罗丹明B（RhB）为目标染料，考察了10wt%In2O3对复合光催化剂可见光降解活性的影响。与纯BiOCl相比，10wt%In2O3/BiOCl复合光催化剂的光催化活性增强。在此基础上，对10wt%In2O3/BiOCl复合光催化剂的光催化活性增强机理进行了探讨。
We report on the synthesis and photocatalytic activity of 10 wt% In2O3/BiOCl composite photocatalyst. The 10 wt% In2O3/BiOCl composite photocatalyst was synthesized by a simple chemical coprecipitation method at room temperature followed by thermal treatment at 400 °C for 2 h. During thermal treatment at 400 °C for 2 h, the amorphous-to-crystalline phase transformation occurs in In2O3. Pure BiOCl possesses flower-like nanostructures composed of nanoplates with single-crystal nature. With the incorporation of 10 wt% In2O3, the morphology of the composite photocatalyst is mainly constituted of particles with two different forms: nanoflowers of BiOCl and nanoparticles of In2O3. The effect of 10 wt% In2O3 on the photocatalytic activity of the composite photocatalyst was evaluated for the degradation of Rhodamine B (RhB) under visible light irradiation. The 10 wt% In2O3/BiOCl composite photocatalyst shows enhanced photocatalytic activity compared to pure BiOCl. Based on the results obtained in this study, the mechanism for the enhanced photocatalytic activity of 10 wt% In2O3/BiOCl composite photocatalyst is discussed.