碱改性g-C_(3)N_(4)管及其光催化降解四环素性能  

Alkali Modified g-C_(3)N_(4) Tube and Its Photocatalytic Degradation of Tetracycline

作　　者：李乔颖 李冰雪 陈建军 梅美玉 王雨佳 黄慧萌 林文慧 LI Qiaoying;LI Bingxue;CHEN Jianjun;MEI Meiyu;WANG Yujia;HUANG Huimeng;LIN Wenhui(School of Chemistry and Chemical Engineering,Zhengzhou Normal University,Institute of Environmental&Catalytic Engineering,Zhengzhou 450044,China)

机构地区：[1]郑州师范学院化学化工学院,环境与催化工程研究所,河南郑州450044

出　　处：《河南化工》2023年第1期28-31,共4页Henan Chemical Industry

基　　金：河南省高等学校重点科研项目(22B430032);河南省高等学校大学生创新创业训练计划项目(S202212949006、S202212949009);郑州师范学院大学生创新创业训练计划项目(DCZ2021016、DCY2021033);郑州师范学院教学改革研究项目(JXGGYB-211601)。

摘　　要：以三聚氰胺为原材料,通过热聚合法制备了g-C_(3)N_(4)管(tg-C_(3)N_(4))。使用不同浓度的NaOH溶液处理tg-C_(3)N_(4)。采用XRD、FT-IR、UV-Vis、PL和光电化学测试等手段对样品进行表征,结果表明:碱改性处理后的tg-C_(3)N_(4)不仅光吸收性能得到了增强,其载流子分离效率也得到了提高。同时通过可见光催化降解四环素实验来评估催化剂的性能,用0.1 mol/L NaOH处理后样品(tg-C_(3)N_(4)-0.1)的光催化性能最好,其对四环素的降解速率(0.0134 min^(-1))是tg-C_(3)N_(4)(0.0050 min^(-1))的2.68倍。The g-C_(3)N_(4)tube(tg-C_(3)N_(4))is prepared by thermal polymerization treatment with melamine as raw material.The tg-C_(3)N_(4)is treated with different concentrations of NaOH solution.The sample is characterized by XRD、FT-IR、UV-Vis、PL and photochemical testing.The results show that the modified tg-C_(3)N_(4)has stronger light absorption performance and carrier separation efficiency.Meanwhile,the performance of the catalyst is evaluated by visible light catalytic degradation experiment of tetracycline.The photocatalytic performance of the sample treated with 0.1 mol/L NaOH(tg-C_(3)N_(4)-0.1)is the best,and the degradation rate of tetracycline(0.0134 min^(-1))is 2.68 times higher than that of tg-C_(3)N_(4)(0.0050 min^(-1)).

关 键 词：g-C_(3)N_(4) 管状 NAOH 光催化 

分 类 号：TQ426.7[化学工程] X787[环境科学与工程—环境工程]