摘要
采用水热合成法将二维石墨氮化碳(g-C_(3)N_(4))复合到甲酸氧铋(BiOCOOH)中,得到一系列纳米花状BiOCOOH/g-C_(3)N_(4)复合材料,通过X射线衍射仪、扫描电子显微镜、紫外-可见漫反射光谱仪、X射线能谱仪等表征方法对复合材料的物相组成、形貌特征、光学性质进行了研究并考察了复合材料对亚甲基蓝(MB)的光催化降解性能。结果表明,与单一相BiOCOOH相比,BiOCOOH/g-C_(3)N_(4)复合材料表现出优异的污染物降解活性。其中,质量比为1∶1的BiOCOOH/g-C_(3)N_(4)复合材料表现出最佳可见光催化活性,对MB的降解率达到99.8%。在此基础上,分析了BiOCOOH/g-C_(3)N_(4)复合材料的光降解反应机理。
A series of nanoflower-like BiOCOOH/g-C_(3)N_(4)composites were obtained by hydrothermal synthesis of 2Dcarbon nitride(g-C_(3)N_(4))into bismuth oxycarbonate(BiOCOOH).The composites were characterized by X-ray diffractometer,scanning electron microscope,UV-Vis diffuse reflectance spectrometer,X-ray energy spectrometer and other characterization methods to investigate the phase composition,morphological characteristics,optical properties and photocatalytic degradation of methylene blue(MB).The photocatalytic degradation of MB by the composites was investigated.The results showed that the composites exhibited excellent pollutant degradation activity compared with the single-phase BiOCOOH.Among them,the BiOCOOH/g-C_(3)N_(4)with the mass ratio of 1∶1exhibited the best visible photocatalytic activity,and the degradation rate of MB reached 99.8%.Based on this,the photodegradation reaction mechanism of the composites was illustrated.
作者
芦安源
李萍
任威宇
吕英
Lu Anyuan;Li Ping;Ren Weiyu;Lv Ying(School of Materials Science and Engineering,Xi'an Shiyou University,Xi'an 710056)
出处
《化工新型材料》
CAS
CSCD
北大核心
2022年第S01期494-497,共4页
New Chemical Materials
基金
陕西省自然科学研究计划青年项目(2021JQ-581)
大学生创新创业训练计划(S202010705037)
作者简介
芦安源(2000-),男,本科生,主要从事光催化材料的制备和应用研究工作,E-mail:1173239157@qq.com;通讯作者:吕英(1989-),女,讲师,从事纳米催化材料及光催化机理研究工作,E-mail:180305@xsyu.edu.cn。
