无机盐工业

无机盐工业 ›› 2021, Vol. 54 ›› Issue (4): 90-94.doi: 10.11962/1006-4990.2020-0252

• 催化材料 • 上一篇    下一篇

BiOI/g-C3N4光催化降解甲基橙研究

孙海杰1,刘欣改1,陈志浩2(),陈凌霞1(),邓亚茹1,梅洋洋1   

  1. 1.郑州师范学院化学化工学院,河南郑州 450044
    2.中国烟草总公司郑州烟草研究院
  • 收稿日期:2020-10-11 出版日期:2021-04-01 发布日期:2021-04-23
  • 通讯作者: 陈志浩,陈凌霞
  • 作者简介:孙海杰(1982— ),男,博士,副教授,研究方向为物理化学、催化化学;E-mail: sunhaijie406@163.com
  • 基金资助:
    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)

Study on photocatalytic degradation of methyl orange by BiOI/g-C3N4

Haijie Sun1,Xin′gai Liu1,Zhihao Chen2(),Lingxia Chen1(),Yaru Deng1,Yangyang Mei1   

  1. 1. School of Chemistry and Chemical Engineering,Zhengzhou University,Zhengzhou 450044,China
    2. Zhengzhou Tobacco Research Institute of CNTC
  • Received:2020-10-11 Online:2021-04-01 Published:2021-04-23
  • Contact: Zhihao Chen,Lingxia Chen

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-C3N4),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-C3N4物质的量比为0.5时,BiOI/g-C3N4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-C3N4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。

关键词: 碘氧化铋, 石墨相氮化碳, 光催化, 甲基橙

Abstract:

Graphite phase carbon nitride(g-C3N4) was prepared by thermal polymerization using melamine as precursor.Then bismuth oxyiodide(BiOI) was in-situ generated on its surface to construct BiOI/g-C3N4 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-C3N4 was 0.5,the catalyst of BiOI/g-C3N4 had high dispersion of BiOI particles and moderate band gap and the adsorption and degradation performance of methyl orange was the best.The catalyst of BiOI/g-C3N4 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.

Key words: BiOI, g-C3N4, photocatalysis, methyl orange

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