Synthesis of a nano-sized hybrid C3N4/TiO2 sample for enhanced and steady solar energy absorption and utilization
文献类型：期刊论文
| 作者 | Yan, Junqing1; Li, Ping1; Bian, Hui1; Wu, Huan1; Liu, Shengzhong (Frank)1,2 |
| 刊名 | SUSTAINABLE ENERGY & FUELS
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 1期号:1页码:95-102 |
| ISSN号 | 2398-4902 |
| DOI | 10.1039/c6se00048g |
| 文献子类 | Article |
| 英文摘要 | The effect of maximum incident light absorption, conversion and utilization by a semiconductor on solar fuel generation was investigated in this study. Sub-15 nm g-C3N4-TiO2 (CN-TiO2) was synthesized through a hydrothermal process at a relatively high temperature. Three samples with different TiO2 sizes, i.e. 9, 12 and 15 nm, were obtained by changing the pH of solution and named CN-TiO2-9, CN-TiO2-12 and CN-TiO2-15. Based on the Mie scattering law, the nano-sized heterojunction samples can achieve almost 100% incident light absorption without reflection. Characterization results from XRD and FTIR indicate that the samples are composed of protonated g-C3N4 and anatase TiO2. Further results from TEM images provide information on the size of the synthesized hybrid samples. It is established that the two components together show sub-15 nm particle size. The nano-sized heterojunction delivered considerable solar-to-hydrogen conversion efficiency with the apparent quantum yield (AQY) of 6.9% under 405 nm visible light irradiation. Moreover, it is interesting to find that the AQY values do not decrease when increasing the incident photon flux. The large absorption cross-section area and the prolonged lifetime of photogenerated carriers of the sub-15 nm CN-TiO2 heterojunction are the origin of the high photon-to-electron conversion. |
| WOS关键词 | VISIBLE-LIGHT IRRADIATION ; PHOTOCATALYTIC ACTIVITY ; HYDROGEN-PRODUCTION ; EFFICIENT PHOTOCATALYST ; ARTIFICIAL PHOTOSYNTHESIS ; NITRIDE NANOSHEETS ; WATER ; PHOTODETECTORS ; FABRICATION ; SEPARATION |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000422769100009 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/168518]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Yan, Junqing; Liu, Shengzhong (Frank) |
| 作者单位 | 1.Shaanxi Normal Univ, Shaanxi Key Lab Adv Energy Devices, Shaanxi Engn Lab Adv Energy Technol, Sch Mat Sci & Engn,Natl Minist Educ,Key Lab Appl, Xian 710119, Shaanxi, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy,iChEM, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Junqing,Li, Ping,Bian, Hui,et al. Synthesis of a nano-sized hybrid C3N4/TiO2 sample for enhanced and steady solar energy absorption and utilization[J]. SUSTAINABLE ENERGY & FUELS,2017,1(1):95-102. |
| APA | Yan, Junqing,Li, Ping,Bian, Hui,Wu, Huan,&Liu, Shengzhong .(2017).Synthesis of a nano-sized hybrid C3N4/TiO2 sample for enhanced and steady solar energy absorption and utilization.SUSTAINABLE ENERGY & FUELS,1(1),95-102. |
| MLA | Yan, Junqing,et al."Synthesis of a nano-sized hybrid C3N4/TiO2 sample for enhanced and steady solar energy absorption and utilization".SUSTAINABLE ENERGY & FUELS 1.1(2017):95-102. |
入库方式： OAI收割
来源：大连化学物理研究所
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