3D Gr/g-C3N4复合材料的制备及光催化还原铀试验研究  

Preparation and Photocatalytic Reduction for Uranium of 3D Gr/g-C3N4

作　　者：朱业安[1,2] 吴煕 卢长海[1] 熊川宝 舒欣杰 陈禹铮 崔瑾昊婕 谢宗波[1,2] 乐长高[1,2] ZHU Yean;WU Xi;LU Changhai;XIONG Chuanbao;SHU Xinjie;CHEN Yuzheng;CUI Jinhaojie;XIE Zongbo;LE Zhanggao(School of Chemical Biology and Materials Science,East China University of Technology,Nanchang 330013,China;State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang 330013,China)

机构地区：[1]东华理工大学化学生物与材料科学学院,江西南昌330013 [2]东华理工大学核资源与环境国家重点实验室,江西南昌330013

出　　处：《湿法冶金》2019年第5期408-411,415,共5页Hydrometallurgy of China

基　　金：国家自然科学基金资助项目(11765002);江西省自然科学基金资助项目(20181BAB203019);江西省教育厅科技研究重点项目(GJJ171505)

摘　　要：以苯为前驱物,采用原位MgO模版法制备具有高比表面积和丰富孔道结构的中空三维石墨材料(3D Gr);以尿素为分散液,尿素与3D Gr超声复合后热缩聚合成3D Gr/g-C3N4复合材料。3D Gr与g-C3N4复合,通过3D Gr的三维中空结构可以有效提高光生电荷迁移率,提高g-C3N4基光催化材料的可见光吸收范围、吸收强度、光生电子跃迁和利用率,从而实现高效光催化还原去除UO2^2+。3D carbon material(3D Gr)was prepared using benzene as precursor by in-place MgO template method.Using urea as dispersion solution and 3D Gr as material by ultrasonic compound,the 3D Gr/g-C3N4 composite material was obtained by thermal condensation synthesis.Combining 3D Gr with g-C3N4,the three-dimensional hollow structure of 3D Gr can effectively improve the photo-generated charge mobility,and also improve the visible light absorption range,absorption intensity,photogenerated electron transition and utilization rate of g-C3N4-based photocatalytic materials.UO2^2+ can be removed by photocatalytic reduction.

关 键 词：3D Gr/g-C3N4 三维碳材料 光催化还原 UO2^2+ 

分 类 号：TL212[核科学技术—核燃料循环与材料] TQ165[化学工程—高温制品工业]