| Bi2WO6/g-C3N4复合型催化剂的制备及其可见光光催化性能 |
| Synthesis and Visible-Light Photocatalytic Activity of Bi2WO6/g-C3N4 Composite Photocatalysts |
| 作者 | 单位 | E-mail | | 桂明生 | College of Materials and Chemical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan 643000, China | guimingsheng@126.com | | 王鹏飞 | College of Materials and Chemical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan 643000, China | | | 袁东 | College of Materials and Chemical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan 643000, China | | | 杨易坤 | College of Materials and Chemical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan 643000, China | |
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| 摘要: 利用溶剂热法,把Bi2WO6纳米颗粒植入g-C3N4层间和表面成功地制备了Bi2WO6/g-C3N4复合型光催化剂。通过XRD、SEM、TEM、BET和UV-Vis分别对样品的结构、组成、形貌、比表面积、光学性能进行了表征。结果表明,g-C3N4层状结构被部分剥离成碎片且与Bi2WO6纳米颗粒形成了复合物。Bi2WO6/g-C3N4复合型光催化剂与单一Bi2WO6相比不仅扩展了可见光的响应范围、增大了比表面还加速了光生电子与空穴的分离。结果表明,Bi2WO6的最佳负载量为60wt%时,复合型光催化剂具有最高的可见光催化活性且性能稳定、易回收。 |
| 关键词: 光催化 复合物 钨酸铋 氮化碳 罗丹明B |
| 基金项目: 四川理工学院人才引进(No.2012RC05)资助项目 |
| Abstract: The Bi2WO6/g-C3N4 composite photocatalysts were successfully synthesized by implanting Bi2WO6 nanoparticles into the interlayer and surface of g-C3N4 using a solvothermal method. The prepared samples were characterized by XRD, SEM, TEM, UV-Vis, BET and photogradation of RhBfor comprehensive structural, morphological, specific surface area and visible-light properties. This results show the interlayer structure of g-C3N4 was partially peeled and formed Bi2WO6/g-C3N4 photocatalyst. The 60 wt% Bi2WO6/g-C3N4 photocatalysts possess enhanced photocatalytic activity than the single phase Bi2WO6 and g-C3N4 under visible light, which can be ascribe to its wide visible light reponse, large surface area and high quantum efficiency. In addition, the Bi2WO6/g-C3N4 composite is not only highly stable but also easy to be collected. |
| Keywords: photocatalytic composite Bi2WO6 g-C3N4 Rhodamine B |
| 投稿时间：2013-04-24 修订日期：2013-05-20 |
| 摘要点击次数: 3974 |
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| 桂明生,王鹏飞,袁东,杨易坤.Bi2WO6/g-C3N4复合型催化剂的制备及其可见光光催化性能[J].无机化学学报,2013,29(10):2057-2064. |
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