| Tremella-like Boron-doped hierarchical CN and dispersion Co phthalocyanine assembling heterojunction for photocatalytic hydrogen evolution | |
Miao, Xuan2; Wang, Binbin1; Fan, Huitao1; Zhang, Peng1; Bai, SQ(白士强)1 ; Liu, WS(刘伟生)1 | |
| 2023-06-01 | |
| Source Publication | CHEMICAL ENGINEERING JOURNAL Impact Factor & Quartile |
| ISSN | 1385-8947 |
| Volume | 465 |
| Abstract | Semiconducting photocatalysts' electronic configuration significantly impacts their band gaps, charge carrier transport properties, and photocatalytic activities. Boron-doped tremella-like hierarchical CN and ultrathin Co phthalocyanine (CoPe) heterojunction (B1.5HCN-Co0.5%) formation via strengthened H-bonding interfacial connection possess excellent photocatalytic activities in water where the small amounts of catalysts exhibit a high photocatalytic H2 evolution activity with H2 evolution rate of 17818.82 μmol h−1 g−1 under simulated sunlight and 5558.81 μmol h−1 g−1 under visible light (≥420 nm). According to detailed characterization, the unique tremella-like hierarchical structure with abundant mesopores shortens the charge diffusion length. At the same time, incorporating CoPe improves the charge transport properties of B1.5HCN achieving effective spatial separation, which is primarily responsible for the improved performance. Both a significant amount of experimental data and theoretical calculations demonstrated the critical role of boron-doped and CoPe in photocatalytic H2 evolution. Heteroatom doping and heterojunction construction are essential in rationally regulating band structure to construct more efficient CN-based photocatalysts. © 2023 |
| Keyword | Boron Carbon nitride Catalyst activity Cobalt Energy gap Hydrogen Morphology Photocatalytic activity Transport properties Co phthalocyanine Doping boron H 2 evolution H-bonding H-bonding interfacial connection Interfacial connections Photo-catalytic Photocatalytic H2 evolution Polymeric carbon nitride Tremellum-like morphology |
| Publisher | Elsevier B.V. |
| DOI | 10.1016/j.cej.2023.142775 |
| Indexed By | EI |
| Language | 英语 |
| EI Accession Number | 20231613939451 |
| EI Keywords | Heterojunctions |
| EI Classification Number | 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 714.2 Semiconductor Devices and Integrated Circuits ; 801.4 Physical Chemistry ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 931.2 Physical Properties of Gases, Liquids and Solids ; 951 Materials Science |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/529510 |
| Collection | 化学化工学院 |
| Corresponding Author | Liu, Weisheng |
| Affiliation | 1.Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou; 730000, China; 2.College of Physical Science and Technology, Lanzhou University, Lanzhou; 730000, China |
| First Author Affilication | Lanzhou University |
| Corresponding Author Affilication | College of Chemistry and Chemical Engineering |
| Recommended Citation GB/T 7714 | Miao, Xuan,Wang, Binbin,Fan, Huitao,et al. Tremella-like Boron-doped hierarchical CN and dispersion Co phthalocyanine assembling heterojunction for photocatalytic hydrogen evolution[J]. CHEMICAL ENGINEERING JOURNAL,2023,465. |
| APA | Miao, Xuan,Wang, Binbin,Fan, Huitao,Zhang, Peng,Bai, Shiqiang,&Liu, Weisheng.(2023).Tremella-like Boron-doped hierarchical CN and dispersion Co phthalocyanine assembling heterojunction for photocatalytic hydrogen evolution.CHEMICAL ENGINEERING JOURNAL,465. |
| MLA | Miao, Xuan,et al."Tremella-like Boron-doped hierarchical CN and dispersion Co phthalocyanine assembling heterojunction for photocatalytic hydrogen evolution".CHEMICAL ENGINEERING JOURNAL 465(2023). |
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