g-C_3N_4–CeO_2/ATP复合材料的制备及可见光催化性能  

Preparation of g-C_3N_4–CeO_2/ATP Composite and Its Visible Light Photocatalytic Performance

作　　者：赵晓兵[1,2] 张作松 李霞章[1] 陆晓旺[1] 殷禹[1] 姚超[1] 刘成宝[2] 陈志刚[2] 

机构地区：[1]常州大学材料科学与工程学院,江苏常州213164 [2]苏州科技学院江苏省环境功能材料重点实验室,江苏苏州215009

出　　处：《硅酸盐学报》2015年第11期1650-1655,共6页Journal of The Chinese Ceramic Society

基　　金：江苏省工业科技支撑计划项目(BE2014100);江苏省环境功能材料重点实验室开放基金项目(SJHG1401)资助

摘　　要：微波辅助液相法制备了g-C3N4–Ce O2/凹凸棒石(ATP)复合光催化材料。采用X射线衍射仪、Fourier变换红外光谱仪、紫外-可见漫反射光谱仪、透射电子显微镜等对样品微观结构进行表征,以亚甲基蓝(MB)为目标降解物考察g-C3N4–Ce O2/ATP复合材料在可见光辐射下的催化活性,研究Ce O2/g-C3N4质量比对光催化剂活性的影响。结果表明:ATP与Ce O2和g-C3N4形成三维网络结构,能有效地增加复合光催化剂的表面积,在空间上形成多渠道的电子传递通道,促进光生载流子的分离。当Ce O2/g-C3N4质量比为3/10时,g-C3N4–Ce O2/ATP复合材料对MB的降解率可达92%。g-C3N4–Ce O2/attapulgite（ATP） composite was synthesized by a microwave assisted liquid phase method. The structures of the composite were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, ultraviolet-visible diffuse reflectance and transmission electron microscopy, respectively. The photocatalytic activities of g-C3N4–Ce O2/ATP composite were investigated via degradation of methylene blue（MB） under visible irradiation. The effect of mass ratio of Ce O2 to g-C3N4 on the photocatalytic activity was investigated. The results indicate that three-dimensional network structure is formed by ATP, Ce O2 and g-C3N4, which can effectively increase the surface area of the composite and promote the separation of electrons and holes by resulting electronic transmission channels of multi-channel in space. The degradation rate of MB can reach 92% when the mass ratio of Ce O2 to g-C3N4 is 3/10.

关 键 词：凹凸棒石 氧化铈 亚甲基蓝 光催化降解 

分 类 号：TB332[一般工业技术—材料科学与工程]