陕西科技大学学报（自然科学版）2016，Vol.34Issue(2)：59-63,5.
g-C3N4／g-C3N4异质结结构的制备及其光催化性能
Construction of g-C3 N4/g-C3 N4 heterojunction for enhanced visible-light photocatalysis
摘要
Abstract
The present work developed a facile in site thermo polymerization method to con-struct g-C3 N4 ,g-C3 N4 samples were prepared from urea ,thiourea and molecular composite precursors of urea and thiourea .The as-prepared samples were characterized by XRD ,AFM , SEM ,UV-vis for crystal structure ,morphology and absorption ability of visible light .The photocatalytic activity was taken out by the degradation of MO solution .We discussed that the different band structure of g-C3 N4 synthesized by different precursors .T his results showed that the three kinds of samples have the same crystal structure ,they all demonstrate s-Triazines units interlayer structure .The thickness of g-C3 N4/g-C3 N4 is 1 .05 nm and the band gap energies of g-C3 N4/g-C3 N4 is 2 .75 eV ,g-C3 N4/g-C3 N4 heterojunction possess ex-cellent photocatalytic activity than the single phase g-C3 N4 (thiourea) and g-C3 N4 (urea) un-der visible light .A g-C3 N4/g-C3 N4 heterojunction promote the separation and transfer of charge and enhance visible light photocatalytic activity .关键词
石墨相氮化碳/异质结/可见光/电荷的分离与传输Key words
g-C3 N4/heterojunction/visible light/charge separation and transfer分类
化学化工引用本文复制引用
李军奇,郝红娟,周健,崔明明,孙龙,袁欢..g-C3N4／g-C3N4异质结结构的制备及其光催化性能[J].陕西科技大学学报（自然科学版）,2016,34(2):59-63,5.基金项目
国家自然科学基金项目（51203136）；陕西科技大学学术骨干培育计划项目（XSGP201202）；陕西科技大学自然科学基金项目 （）
