大学化学 >> 2016, Vol. 31 >> Issue (4): 55-59.doi: 10.3866/PKU.DXHX20160455

化学实验 上一篇    下一篇

LED光化学反应器在环境化学实验教学中的应用

吉冰冰,张琳*(),肖玫*(),李进军,吴峰,詹长根   

  • 发布日期:2016-05-06
  • 通讯作者: 张琳,肖玫 E-mail:503170492@qq.com;xiaomei@whu.edu.cn
  • 基金资助:
    2014年湖北省高等学校省级教学研究项目(2014016);2014年武汉大学实验技术项目(WHU-2014-SYJS-04);2014年武汉大学教学改革项目(2014(32))

Application of LED Photochemical Reactor in Teaching Environmental Chemistry Laboratory

Bing-Bing JI,Lin ZHANG*(),Mei XIAO*(),Jin-Jun LI,Feng WU,Chang-Gen ZHAN   

  • Published:2016-05-06
  • Contact: Lin ZHANG,Mei XIAO E-mail:503170492@qq.com;xiaomei@whu.edu.cn
  • Supported by:
    2014年湖北省高等学校省级教学研究项目(2014016);2014年武汉大学实验技术项目(WHU-2014-SYJS-04);2014年武汉大学教学改革项目(2014(32))

摘要:

介绍了一种新型LED光化学反应器的设计思路及装置,并将其分别应用于Cr(Ⅵ)光还原和有机砷光氧化两个环境化学实验教学中。结果表明:在波长394 nm的LED光反应器中, Cr(Ⅵ)光还原效率高达95%;在波长664 nm的LED光反应器中,有机砷氧化效率大于80%;应用实验说明该反应器具有良好的稳定性,且安全可靠,完全能够满足环境光化学实验教学的要求。

关键词: LED光化学反应器, 光化学反应, 环境化学, 实验教学

Abstract:

This paper introduced the design method and device of a novel LED photochemical reactor, and applied the reactor to Cr(Ⅵ) photo-reduction and photooxidation of organic arsenic in environmental chemistry laboratory teaching. The results showed that the efficiency of Cr(Ⅵ) photo-reduction was 95% in LED photochemical reactor with 394 nm irradiation, and the efficiency of photooxidation of organic arsenic was more than 80% in reactor with 664 nm irradiation. The application experiments showed that the reactor had good stability, safety and reliability, and could meet the requirements of environmental photochemistry laboratory teaching.

Key words: LED photochemical reactor, Photochemical reaction, Environmental chemistry, Laboratory teaching

MSC2000: 

  • O6