| 彭江伟,江卓婷,姜奎兵,姜森,朱会荣,闫刚,郭向威.Z-机制g-C3N4/Bi/BiOBr异质结光催化剂制备及其可见光降解甲醛气体研究[J].分子催化,2023,37(1):53-62 |
| Z-机制g-C3N4/Bi/BiOBr异质结光催化剂制备及其可见光降解甲醛气体研究 |
| Preparation of Z-Scheme g-C3N4/Bi/BiOBr Heterojunction Photocatalyst and Its Visible Light Degradation of Formaldehyde Gas |
| 投稿时间：2022-08-15 修订日期：2022-09-24 |
| DOI：10.16084/j.issn1001-3555.2023.01.006 |
| 中文关键词: 光催化 异质结 Z-机制 甲醛 |
| 英文关键词:photocatalysis heterojunction Z-Scheme formaldehyde |
| 基金项目:吉林省科技厅自然科学基金(No.20210101138JC);吉林省教育厅科学技术研究项目(JJKH20220264KJ);河南省自然科学基金青年基金项目(No.202300410025);吉林建筑大学2022年大学生创新创业训练计划：202210191008，S202210191023 |
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| 中文摘要: |
| 通过将BiOBr纳米片与g-C3N4复合,然后原位还原,合成了具有纳米花状结构的三元异质结光催化剂g-C3N4/Bi/BiOBr.对g-C3N4/Bi/BiOBr的结构、形貌、元素价态和光学性能等进行了表征和研究.评估了g-C3N4/Bi/BiOBr对气体甲醛的光催化降解活性.g-C3N4/Bi/BiOBr在可见光照射下降解甲醛的活性与g-C3N4、BiOBr单体和g-C3N4/BiOBr二元复合物相比显著提高.20%-g-C3N4/Bi/BiOBr复合物可以在60 min内(λ> 400 nm)降解80%的气态甲醛(初始浓度0.16 mg·L-1). |
| 英文摘要: |
| In this paper, the ternary heterojunction photocatalyst g-C3N4/Bi/BiOBr with nano flower structure was synthesized by compounding the BiOBr nano sheet with g-C3N4, and then reducing in situ. The structure, morphology, valence states and optical properties of g-C3N4/Bi/BiOBr were characterized and studied. The photocatalytic activity of g-C3N4/Bi/BiOBr for the degradation of gaseous formaldehyde was evaluated. Compared with g-C3N4, BiOBr monomer and g-C3N4/BiOBr binary complex, the activity of g-C3N4/Bi/BiOBr to degrade formaldehyde under visible light irradiation is significantly improved. 20%-g-C3N4/Bi/BiOBr composite can be used within 60 minutes(λ> 400 nm) degrades 80% of gaseous formaldehyde (initial concentration 0.16 mg·L-1). |
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