%0 Journal Article
%T g-C3N4/CdMoO4复合光催化材料的制备及其可见光降解磺胺噻唑<br>Preparation of g-C3N4/CdMoO4 composite and its photocatalytic activity of sulfathiazole under visible light
%A 石炜
%A 刘辉
%A 戴珂
%A 杨子欣
%A 陈浩
%J 华中农业大学学报
%D 2015
%X 制备了不同复合比例的g-C3N4/CdMoO4纳米片状复合光催化材料(CN-CMO)。通过SEM、TEM-EDS、XRD、FT-IR、DRS等方法对复合材料CN-CMO的晶体结构、形貌特点、光吸收能力、化学键合情况等进行表征。CN-CMO在可见光下对磺胺噻唑光降解性能的研究结果表明，磺胺噻唑的光降解反应具备表观一级动力学的特点，且降解反应速率常数分别为g-C3N4及CdMoO4材料的3倍和10倍。光催化降解机制的研究表明，CN-CMO光催化活性提高的原因在于g-C3N4和CdMoO4复合后材料中电子与空穴更容易分离；同时，考察光催化过程中催化剂的投加量对光催化活性的影响，发现CN-CMO在质量浓度为1 g/L时对磺胺噻唑的光催化降解效果最佳。<br>The photocatalyst of g-C3N4/CdMoO4 nanosheets (CN-CMO) was prepared with different proportions.Its crystal structure,morphology,light absorption capability and chemical bond was characterized with SEM,TEM-EDS,XRD,FT-IR,DRS.The photocatalytic activities of sulfathiazole onto the materials under visible light were investigated.Results showed that the photo-degradation had the obvious characteristics of first-order kinetics.The rate constant for the photo-degradation of sulfathiazole by CN-CMO was at most 3 times or 10 times than that of g-C3N4 or CdMoO4,respectively.The increase of photocatalytic activity was due to the easier separation of the electron and hole in the CN-CMO.The photocatalytic activity of CN-CMO was affected by its concentration.The optimal dosage was 1.0 g/L.
%K CdMoO4 g-C3N4 复合材料 可见光 催化降解 磺胺噻唑&lt
%K br&gt
%K CdMoO4 g-C3N4 composite material visible light photocatalytic degradation sulfathiazole
%U http://hnxbl.cnjournals.net/hznydxzr/ch/reader/view_abstract.aspx?file_no=20150410&flag=1