大学化学 >> 2020, Vol. 35 >> Issue (9): 152-158.doi: 10.3866/PKU.DXHX202005006

化学实验 上一篇    下一篇

ZnO-g-C3N4多孔Z型异质结的合成及净化有机废水性能研究——推荐一个大学化学综合性实验

张晓丽, 关新新, 李朝辉(), 郑修成()   

  • 收稿日期:2020-05-03 录用日期:2020-05-28 发布日期:2020-06-03
  • 通讯作者: 李朝辉,郑修成 E-mail:zhaohui.li@zzu.edu.cn;zhxch@zzu.edu.cn
  • 基金资助:
    河南省高等教育教学改革研究与实践项目(2019SJGLX184)

Synthesis and Purification Performance of Porous ZnO-g-C3N4 Z-Scheme Heterojunction for Organic Wastewater: An Recommendation of a Comprehensive University Chemistry Experiment

Xiaoli Zhang, Xinxin Guan, Zhaohui Li(), Xiucheng Zheng()   

  • Received:2020-05-03 Accepted:2020-05-28 Published:2020-06-03
  • Contact: Zhaohui Li,Xiucheng Zheng E-mail:zhaohui.li@zzu.edu.cn;zhxch@zzu.edu.cn

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摘要：

介绍了一个大学化学综合性实验：ZnO-g-C3N4多孔Z型异质结的合成及净化有机废水性能研究。本文是以廉价化学试剂尿素、氯化铵及硝酸锌为原料，采用直接焙烧法合成出由氧化锌和类石墨相氮化碳构成的ZnO-g-C3N4多孔Z型异质结，利用数种方法其进行分析表征，并考察所制异质结对罗丹明B废水的吸附性能及光催化降解活性。通过本综合性实验的实践，将有助于提高高年级本科生的实验操作技能，激发学生对科学研究的兴趣，培养科研能力，并增强其环保意识和责任意识。

关键词: ZnO-g-C3N4, 多孔Z型异质结, 吸附, 光催化, 有机污水

Abstract:

In this paper, a comprehensive chemistry experiment named "Synthesis and purification performance of porous ZnO-g-C3N4 Z-scheme heterojunction for organic wastewater" is introduced. The cheap chemical reagents, including urea, ammonium chloride and zinc nitrate, are used as raw materials for preparing porous ZnO-g-C3N4 heterojunction, which is composed of ZnO and graphitic carbon nitride, with a direct calcination method. Furthermore, the heterojunction is analyzed by several techniques. Meanwhile, the adsorption capacity and photocatalytic activity for rhodamine B were investigated. This comprehensive experiment is helpful for improving the experimental operation skills of senior undergraduates, stimulating their interest in scientific research, cultivating their scientific research capabilities, and enhancing their environmental awareness and responsibility awareness.

Key words: ZnO-g-C3N4, Porous Z-scheme heterojunction, Adsorption, Photocatalysis, Organic wastewater