摘要
以三聚氰胺为前驱物采用热聚合法制备了石墨相氮化碳(g-C_(3)N_(4)),并在其表面原位合成了碘氧化铋(BiOI),构筑了石墨相氮化碳-碘氧化铋复合材料。采用X射线衍射仪(XRD)、傅里叶变换红外光谱仪(FT-IR)、紫外可见漫反射仪(UV-Vis-DRS)等对催化剂进行了表征。结果表明,当BiOI与g-C_(3)N_(4)物质的量比为0.5时,BiOI/g-C_(3)N_(4)催化剂具有高分散的BiOI颗粒及适中的禁带宽度,吸附和降解甲基橙性能最佳。回流温度为120℃时制备的BiOI/g-C_(3)N_(4)催化剂具有适中的粒径、比表面积和表面羟基浓度,吸附和降解甲基橙性能最佳,且该催化剂具有良好的重复使用性能。
Graphite phase carbon nitride(g-C_(3)N_(4))was prepared by thermal polymerization using melamine as precursor.Then bismuth oxyiodide(BiOI)was in-situ generated on its surface to construct BiOI/g-C_(3)N_(4)composite.The catalyst was characterized by X-ray diffraction XRD,fourier transform infrared spectroscopy(FT-IR)and ultraviolet visible diffuse reflectance spectroscopy(UV-Vis-DRS).The results showed that when the mass-of-substance of BiOI to g-C_(3)N_(4)was 0.5,the catalyst of BiOI/g-C_(3)N_(4)had high dispersion of Bi OI particles and moderate band gap and the adsorption and degradation performance of methyl orange was the best.The catalyst of BiOI/g-C_(3)N_(4)prepared at reflux temperature of 120℃had moderate particle size,specific surface area and surface hydroxyl concentration and the best adsorption and degradation performance of methyl orange.In addition,the catalyst had good recyclability.
作者
孙海杰
刘欣改
陈志浩
陈凌霞
邓亚茹
梅洋洋
Sun Haijie;Liu Xin'gai;Chen Zhihao;Chen Lingxia;Deng Yaru;Mei Yangyang(School of Chemistry and Chemical Engineering,Zhengzhou University,Zhengzhou 450044,China;Zhengzhou Tobacco Research Institute of CNTC)
出处
《无机盐工业》
CAS
CSCD
北大核心
2021年第4期90-94,共5页
Inorganic Chemicals Industry
基金
国家级大学生创新创业训练计划项目(201912949002)
河南省科技攻关项目(192102210139)
河南省高等学校青年骨干教师培养计划(2019GGJS252)
河南省高等学校重点科研项目(18A150018)
郑州师范学院环境催化科研创新团队(702010)。
