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DOI | 10.1016/j.apcatb.2018.09.073 |
All-solid-state artificial Z-scheme porous g-C3N4/Sn2S3-DETA heterostructure photocatalyst with enhanced performance in photocatalytic CO2 reduction | |
Huo, Yao1; Zhang, Jinfeng1; Dai, Kai1; Li, Qiang1; Lv, Jiali2,3,4; Zhu, Guangping1; Liang, Changhao2,3,4 | |
发表日期 | 2019 |
ISSN | 0926-3373 |
EISSN | 1873-3883 |
卷号 | 241页码:528-538 |
英文摘要 | Nowadays, the increasing CO2 emissions have attracted widespread attentions and it is necessary to reduce CO2 emissions to solve the global warming problem. So photocatalytic reduction of CO2 into chemical fuels is a promising strategy. Here, a Z-scheme porous g-C3N4/Sn2S3-diethylenetriamine (Pg-C3N4/Sn2S3-DETA) composite without an electron intermediary is designed. Photocatalytic performance of the as-fabricated samples is investigated on the basis of photocatalytic CO2 reduction (PCR) to form CH4 and CH3OH. We find that the Zscheme heterostructure photocatalysts show a higher PCR performance than Pg-C3N4 and Sn2S3-DETA. An optimized Pg-C3N4/Sn2S3-DETA heterostructure sample displays high CH4 production rate of 4.84 mu mol h(-1) g and CH3OH-production rate of 1.35 mu mol h(-1) g(-1) with 5% Pg-C3N4 content. The superior PCR performance could be ascribed to the special structure of a direct Z-scheme Pg-C3N4/Sn2S3-DETA photocatalyst, which is beneficial to efficient separation of electron-hole pairs. Density functional theory (DFT) calculation further confirms the presence of direct Z-scheme mechanism. This Z-scheme heterostructure photocatalyst with superior performance may inaugurate the perspective on a new promising hierarchy of materials on CO2 photoreduction. |
WOS研究方向 | Chemistry ; Engineering |
来源期刊 | APPLIED CATALYSIS B-ENVIRONMENTAL |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/92592 |
作者单位 | 1.Huaibei Normal Univ, Coll Phys & Elect Informat, Anhui Key Lab Energet Mat, Huaibei 235000, Peoples R China; 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230021, Anhui, Peoples R China; 3.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230021, Anhui, Peoples R China; 4.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Huo, Yao,Zhang, Jinfeng,Dai, Kai,et al. All-solid-state artificial Z-scheme porous g-C3N4/Sn2S3-DETA heterostructure photocatalyst with enhanced performance in photocatalytic CO2 reduction[J],2019,241:528-538. |
APA | Huo, Yao.,Zhang, Jinfeng.,Dai, Kai.,Li, Qiang.,Lv, Jiali.,...&Liang, Changhao.(2019).All-solid-state artificial Z-scheme porous g-C3N4/Sn2S3-DETA heterostructure photocatalyst with enhanced performance in photocatalytic CO2 reduction.APPLIED CATALYSIS B-ENVIRONMENTAL,241,528-538. |
MLA | Huo, Yao,et al."All-solid-state artificial Z-scheme porous g-C3N4/Sn2S3-DETA heterostructure photocatalyst with enhanced performance in photocatalytic CO2 reduction".APPLIED CATALYSIS B-ENVIRONMENTAL 241(2019):528-538. |
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