Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Protonated carbon nitride nanosheet supported IrO2 quantum dots for pure water splitting without sacrificial reagents | |
Wang, Nan1,2,3; Li, Xinjun1,2,3
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| 2018-09-01 | |
| Source Publication | INORGANIC CHEMISTRY FRONTIERS
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| ISSN | 2052-1553 |
| Volume | 5Issue:9Pages:2268-2275 |
| Corresponding Author | Li, Xinjun(lixj@ms.giec.ac.cn) |
| Abstract | A novel photocatalyst with protonated carbon nitride (p-C3N4) loaded with IrO2 quantum dots (QDs) was fabricated via a facile hydrothermal method. Structure characterization studies (XRD, STEM, XPS, UV-vis spectra and PL spectra) revealed that the IrO2 QDs with an average diameter of ca. 2 nm were highly dispersed and anchored to the surfaces of p-C3N4. The introduced IrO2 QDs promoted the electron-hole separation efficiency of p-C3N4 and increased the absorbance capacity within the visible light range. The photocatalytic activity was evaluated using hydrogen and oxygen evolution from water splitting under visible light illumination. The optimum IrO2/C3N4-0.6 wt% photocatalyst exhibits the highest hydrogen evolution rate of 45 mol h(-1) and oxygen production rate of 20 mol h(-1). Under visible light irradiation, the composite photocatalyst shows higher photocurrents, more negative onset potential and lower photoluminescence intensity compared with those of p-C3N4, which demonstrated that the modification of IrO2 QDs accelerated the transformation, separation, and utilization of photoelectrons and thereby significantly improved the photocatalytic performance. |
| DOI | 10.1039/c8qi00419f |
| WOS Keyword | PHOTOCATALYTIC H-2 EVOLUTION ; VISIBLE-LIGHT IRRADIATION ; HYDROGEN EVOLUTION ; G-C3N4 NANOSHEETS ; OXYGEN EVOLUTION ; COCATALYST ; OXIDATION ; FABRICATION ; COMPOSITES ; CATALYSTS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Science and Technology Program of Guangzhou, China[201803030019] ; Key Laboratory of Renewable Energy, Chinese Academy Sciences Foundation[Y707j71001] ; Analysis and Testing Center of Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences |
| WOS Research Area | Chemistry |
| Funding Organization | Science and Technology Program of Guangzhou, China ; Key Laboratory of Renewable Energy, Chinese Academy Sciences Foundation ; Analysis and Testing Center of Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences |
| WOS Subject | Chemistry, Inorganic & Nuclear |
| WOS ID | WOS:000445217200023 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/24059 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Li, Xinjun |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Wang, Nan,Li, Xinjun. Protonated carbon nitride nanosheet supported IrO2 quantum dots for pure water splitting without sacrificial reagents[J]. INORGANIC CHEMISTRY FRONTIERS,2018,5(9):2268-2275. |
| APA | Wang, Nan,&Li, Xinjun.(2018).Protonated carbon nitride nanosheet supported IrO2 quantum dots for pure water splitting without sacrificial reagents.INORGANIC CHEMISTRY FRONTIERS,5(9),2268-2275. |
| MLA | Wang, Nan,et al."Protonated carbon nitride nanosheet supported IrO2 quantum dots for pure water splitting without sacrificial reagents".INORGANIC CHEMISTRY FRONTIERS 5.9(2018):2268-2275. |
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