摘要
采用水热法制备了含有稀土五硼酸盐和石墨相氮化碳的复合材料,调控两种成分得到光催化性能最佳的复合材料Gd_(0.9)Ce_(0.1)B_(5)O_(9)(GCBO)的占比为7%,g-C_(3)N_(4)(CN)的占比为93%,将其简写为CN@GCBO-7。为了进一部提升其光降解性能,铜作为助催化剂,其光降解效率与动力学常数分别为18.5%和0.0018 min^(-1)。相对于CN@GCBO-7、GCBO、CN分别提升了1.3、3.1、92.5倍。采用X射线粉末衍射、扫描电镜、透射电镜、X射线光电子能谱等表征方法对所制备的复合材料进行测试,结果表明用于光催化研究的复合材料的制备是成功的。
A composite material containing rare earth pentaborate and graphite phase carbon nitride is prepared by hydrothermal method.The two components is adjusted to obtain the composite material with the best photocatalytic performance.The proportion of Gd_(0.9)Ce_(0.1)B_(5)O_(9)(GCBO)is 7%,and the proportion of g-C_(3)N_(4)(CN)is 93%,which is abbreviated as CN@GCBO-7.In order to further improve its photodegradation performance,copper is used as a co-catalyst,and its photodegradation efficiency and kinetic constant are 18.5%and 0.0018 min-1,respectively.Compared with CN@GCBO-7,GCBO and CN are increased by 1.3,3.1,92.5 times,respectively.The prepared composite materials are tested by X-ray powder diffraction,scanning electron microscopy,transmission electron microscopy,X-ray photoelectron spectroscopy and other characterization methods.The results show that the preparation of composite materials for photocatalytic research is successful.
作者
陈敏
陈燃
白素红
谢亚欣
孙晓瑞
CHEN Min;CHEN Ran;BAI Suhong;XIE Yaxin;SUN Xiaorui(School of Chemistry and Chemical Engineering,Yangtze Normal University,Chongqing 408100,China)
出处
《河南化工》
2025年第9期21-24,28,共5页
Henan Chemical Industry
基金
长江师范学院市级大学生创新训练计划项目(S202410647037)。
关键词
稀土五硼酸盐
光催化
复合材料
盐酸强力霉素
rare earth pentaborate
photocatalysis
composite materials
doxycycline hydrochloride
