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摘要
制备了石墨相氮化碳(g-C3N4)负载海泡石复合催化剂并对其进行了表征。以亚甲基蓝为模拟有机污染物、氙灯为可见光光源测试了催化剂的可见光催化活性。研究了g-C3N4负载量、催化剂投加质量、染料初始质量浓度和溶液初始pH等对染料去除率的影响。结果表明,催化剂具有选择性吸附和光催化活性。同时探讨了光催化降解过程的动力学和光催化过程的机理。
Abstract
Graphite phase carbon nitride (g-C3N4)/sepiolite composite catalyst is prepared and characterized.Its catalytic activity under visible light is tested by using methylene blue as the simulating organic pollutant,and xenon lamp as visible light.The influences of the loading amount of g-C3N4,the dosage of the catalyst,the initial concentration of methylene blue and the initial pH of solution on the removal rate of methylene blue are studied.Experimental results show that the catalyst exhibits selective adsorption and photocatalytic activity.The photocatalytic degradation kinetic and the photocatalytic mechanism are also explored.
关键词
氮化碳
/
机理
/
催化
/
可见光
/
亚甲基蓝
/
海泡石
Key words
carbon nitride
/
mechanism
/
catalysis
/
visible light
/
methylene blue
/
sepiolite
Author summay
王连荧(1998-),女,硕士研究生,研究方向为污水处理,1375238272@qq.com
氮化碳负载海泡石光催化降解有机染料的研究[J].
现代化工, 2022, 42(10): 114-119,125 DOI:10.16606/j.cnki.issn0253-4320.2022.10.022
