The deep oxidation of NO was realized by Sr multi-site doped g-C3N4 via photocatalytic method
文献类型:期刊论文
作者 | Zhou, Meng2; Dong, Guohui2; Yu, Fangke2; Huang, Yu1 |
刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
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出版日期 | 2019-11-05 |
卷号 | 256页码:11 |
关键词 | Photocatalysis NO removal g-C3N4 Sr doping Multi-site doping |
ISSN号 | 0926-3373 |
DOI | 10.1016/j.apcatb.2019.117825 |
通讯作者 | Dong, Guohui(dongguohui@sust.edu.cn) ; Yu, Fangke(yufangke@sust.edu.cn) |
英文摘要 | The NO removal activity of g-C3N4 is limited by many shortcomings including the high recombination rate of photo-generated carriers and secondary pollution induced by incomplete oxidation. Here, we modified g-C3N4 using multi-site Sr-doping with simultaneous N atoms replacement, cavity padding, and intercalation. The NO removal experiments showed that multi-site doping of Sr improved the NO removal rate by 1.5 times. Meanwhile, the conversion rate of secondary pollution (NO2) decreased from 62.5% to 15.8%. The effects of doped Sr were different with different doping modes. All the doping modals of Sr could decrease the band gap of g-C3N4. Meanwhile, the Sr that intercalated in the interlayer of g-C3N4 could improve the transfer of photogenerated electrons; the Sr that replaced the N atoms could help the activation of O-2 to produce more O-center dot(2)-; the Sr padded in the cavity provides g-C3N4 with the ability to activate the H2O2 for the generation of a stronger oxidant ((OH)-O-center dot). The different doping modes complement each other and combine to realize efficient and deep NO removal. |
WOS关键词 | GRAPHITIC CARBON NITRIDE ; REMOVAL ACTIVITY ; EFFICIENT ; CONVERSION ; PROMOTES |
资助项目 | National Nature Science Foundation of China[21876104] ; National Nature Science Foundation of China[21603271] |
WOS研究方向 | Chemistry ; Engineering |
语种 | 英语 |
WOS记录号 | WOS:000483451200038 |
出版者 | ELSEVIER |
资助机构 | National Nature Science Foundation of China |
源URL | [http://ir.ieecas.cn/handle/361006/13500] ![]() |
专题 | 地球环境研究所_粉尘与环境研究室 |
通讯作者 | Dong, Guohui; Yu, Fangke |
作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China 2.Shaanxi Univ Sci & Technol, Sch Environm Sci & Engn, Xian 710021, Shaanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Zhou, Meng,Dong, Guohui,Yu, Fangke,et al. The deep oxidation of NO was realized by Sr multi-site doped g-C3N4 via photocatalytic method[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,256:11. |
APA | Zhou, Meng,Dong, Guohui,Yu, Fangke,&Huang, Yu.(2019).The deep oxidation of NO was realized by Sr multi-site doped g-C3N4 via photocatalytic method.APPLIED CATALYSIS B-ENVIRONMENTAL,256,11. |
MLA | Zhou, Meng,et al."The deep oxidation of NO was realized by Sr multi-site doped g-C3N4 via photocatalytic method".APPLIED CATALYSIS B-ENVIRONMENTAL 256(2019):11. |
入库方式: OAI收割
来源:地球环境研究所
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