工业水处理 ›› 2018, Vol. 38 ›› Issue (6): 78-81. doi: 10.11894/1005-829x.2018.38(6).078

• 试验研究 • 上一篇    下一篇

Ag3PO4/MoS2纳米复合颗粒光催化降解有机废水

孙冠华1, 张尚强2, 展学成3   

  1. 1. 航天长征化学工程股份有限公司兰州分公司, 甘肃兰州 730010;
    2. 中海油天津化工研究设计院有限公司, 天津 300131;
    3. 中国石油兰州化工研究中心, 甘肃兰州 730060
  • 收稿日期:2018-03-27 出版日期:2018-06-20 发布日期:2018-06-15
  • 作者简介:孙冠华(1987-),硕士,工程师。E-mail:ax_dt2@163.com。

Ag3PO4/MoS2 nano-composite particles for the photo-catalytic degradation of organic wastewater

Sun Guanhua1, Zhang Shangqiang2, Zhan Xuecheng3   

  1. 1. Lanzhou Branch of Changzheng Engineering Co., Ltd., Lanzhou 730010, China;
    2. CenerTech Tianjin Chemical Research and Design Institute Co., Ltd., Tianjin 300131, China;
    3. Lanzhou Research Center of Chemical Engineering of PertoChina, Lanzhou 730060, China
  • Received:2018-03-27 Online:2018-06-20 Published:2018-06-15

摘要: 采用温和条件下的液相沉淀法制备了不同MoS2含量的高效可见光驱使Ag3PO4/MoS2复合光催化剂,利用XRD、FE-SEM、TEM等对产物进行了表征,并采用模拟亚甲蓝废水对产物的光催化性能进行了测试。结果表明,在可见光照射下,相比于Ag3PO4,复合光催化剂对亚甲蓝的降解能力显著增强,其中MoS2质量分数为0.5%的样品对亚甲蓝的光催化降解效果最佳,60 min内可将亚甲蓝完全降解。通过自由基捕获实验确认复合材料光催化活性的增强是由于电子空穴对的有效分离。

关键词: Ag3PO4, MoS2, 光催化, 有机废水, 可见光降解

Abstract: Highly efficient visible-light-driven Ag3PO4/MoS2 composite photo-catalysts containing different amounts of MoS2 have been prepared under mild conditions by liquid phase precipitation method,the shape,composition, microstructure and size of the nano-particles characterized by XRD,FE-SEM and TEM analysis,and the photo-cata-lytic capability of the products for simulated methylence blue wastewater has been tested. The results show that under visible-light irradiation,compared with Ag3PO4,the photo-catalytic capability of Ag3PO4/MoS2 composite photo-cata-lysts for methylence blue is enhanced significantly. The photo-catalytic degradation effect of the samples,whose MoS2 mass fraction are 5%,on methylence blue is the best,the methylence blue can completely be degraded within 60 min. It is confirmed by free radical capture experiments that the enhancement of photo-catalytic activity of the composite materials are due to the effective separation of electron hole pairs.

Key words: Ag3PO4, MoS2, photo-catalysts, organic wastewater, visible-light degradation

中图分类号: