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Constructing Ni3C/2D g-C3N4 Photocatalyst and the Internal Catalytic Mechanism Study
Physica Status Solidi (A) - Applications and Materials Science Pub Date : 2021-07-01 , DOI: 10.1002/pssa.202100171 Hanxiang Chen 1 , Junjie Yuan 1 , Wenshu Yang 1 , Yahui Yu 1 , Yanhua Song 2 , Yuanbin She 3 , Zhigang Chen 1 , Xianglin Zhu 1 , Huaming Li 1 , Hui Xu 1
Physica Status Solidi (A) - Applications and Materials Science Pub Date : 2021-07-01 , DOI: 10.1002/pssa.202100171 Hanxiang Chen 1 , Junjie Yuan 1 , Wenshu Yang 1 , Yahui Yu 1 , Yanhua Song 2 , Yuanbin She 3 , Zhigang Chen 1 , Xianglin Zhu 1 , Huaming Li 1 , Hui Xu 1
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Developing efficient, highly stable, and cheap photocatalysts are the keys to the industrial application of photocatalytic techniques. For the photocatalytic reactions, how to promote the separating of photogenerated carriers and construct active sites are crucial challenges. Herein, Ni3C nanoparticles are loaded on 2D g-C3N4 as electron-transferring centers. The mechanism of interface charge transfer in the photocatalytic reactions is studied. Benefited from the formed Schottky junction and the special activation effect of Ni3C, Ni3C/2D g-C3N4 owns better separation efficiency of carriers and more active sites to produce ⋅O2− and ⋅OH species, which can enhance the photocatalytic activity. Finally, a highest rate of 90.3% for rhodamine B (Rh B) degradation is realized by the optimal proportion of Ni3C/2D g-C3N4. In addition, the increased photocurrent intensity and stronger signals of active species of Ni3C/2D g-C3N4 indicate the dual functions of Ni3C in both promoting the separation of carriers and the production of the active oxidation species.
中文翻译：
Ni3C/2D g-C3N4光催化剂的构建及内催化机理研究
开发高效、高稳定性和廉价的光催化剂是光催化技术工业应用的关键。对于光催化反应，如何促进光生载流子的分离和构建活性位点是至关重要的挑战。在此，Ni 3 C 纳米颗粒负载在二维 gC 3 N 4 上作为电子转移中心。研究了光催化反应中界面电荷转移的机理。受益于形成的肖特基结和Ni 3 C的特殊活化作用，Ni 3 C/2D gC 3 N 4具有更好的载流子分离效率和更多的活性位点来产生·O 2 -和 ⋅OH 物种，可以增强光催化活性。最后，通过最佳比例的 Ni 3 C/2D gC 3 N 4实现了罗丹明 B (Rh B) 降解的最高速率 90.3% 。此外，Ni 3 C/2D gC 3 N 4活性物种的光电流强度增加和信号更强表明Ni 3 C 在促进载流子分离和活性氧化物种生成方面具有双重作用。
更新日期：2021-07-01
中文翻译：
Ni3C/2D g-C3N4光催化剂的构建及内催化机理研究
开发高效、高稳定性和廉价的光催化剂是光催化技术工业应用的关键。对于光催化反应，如何促进光生载流子的分离和构建活性位点是至关重要的挑战。在此，Ni 3 C 纳米颗粒负载在二维 gC 3 N 4 上作为电子转移中心。研究了光催化反应中界面电荷转移的机理。受益于形成的肖特基结和Ni 3 C的特殊活化作用，Ni 3 C/2D gC 3 N 4具有更好的载流子分离效率和更多的活性位点来产生·O 2 -和 ⋅OH 物种，可以增强光催化活性。最后，通过最佳比例的 Ni 3 C/2D gC 3 N 4实现了罗丹明 B (Rh B) 降解的最高速率 90.3% 。此外，Ni 3 C/2D gC 3 N 4活性物种的光电流强度增加和信号更强表明Ni 3 C 在促进载流子分离和活性氧化物种生成方面具有双重作用。
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