当前位置：
X-MOL 学术
›
Ind. Eng. Chem. Res.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Construction of 2D/3D g-C3N4/ZnIn2S4 Heterojunction for Efficient Photocatalytic Reduction of CO2 under Visible Light
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2023-09-19 , DOI: 10.1021/acs.iecr.3c02523 Fangjun Wang 1 , Shiyi Chen 1 , Jiang Wu 2, 3 , Wenguo Xiang 1 , Lunbo Duan 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2023-09-19 , DOI: 10.1021/acs.iecr.3c02523 Fangjun Wang 1 , Shiyi Chen 1 , Jiang Wu 2, 3 , Wenguo Xiang 1 , Lunbo Duan 1
Affiliation
|
A 2D/3D g-C3N4/ZnIn2S4 heterojunction photocatalyst was constructed by a one-step hydrothermal method combined with a calcination process. This composite not only can use its heterostructure to improve the migration and separation of photogenerated electron–holes but also has stronger visible light utilization efficiency and CO2 adsorption capacity, thereby improving the severe charge recombination of g-C3N4 and ZnIn2S4 monomers. The g-C3N4/ZnIn2S4 heterojunction exhibits outstanding performance in CO2 photoreduction. A maximum CO production of 40 wt % g-C3N4/ZnIn2S4 composite can reach 82.26 μmol·g–1, which is 10.1 and 2.8 times as high as those of the g-C3N4 and ZnIn2S4 monomers, respectively. The heterojunction fabrication process and electronic changes were analyzed with respect to both experimental and theoretical aspects by means of photoelectrochemical measurements and density functional theory (DFT). Finally, we propose a feasible mechanism for the photocatalytic reduction of CO2 on the g-C3N4/ZnIn2S4 composite. This work could help to understand the structure regulation of carbon nitride-based materials and provides a certain guidance for the development of novel efficient and green heterojunction catalysts.
中文翻译：
构建 2D/3D g-C3N4/ZnIn2S4 异质结，用于可见光下高效光催化还原 CO2
采用一步水热法结合煅烧工艺构建了2D/3D gC 3 N 4 /ZnIn 2 S 4异质结光催化剂。该复合材料不仅可以利用其异质结构改善光生电子空穴的迁移和分离，而且具有更强的可见光利用效率和CO 2吸附能力，从而改善gC 3 N 4和ZnIn 2 S 4单体的剧烈电荷复合。gC 3 N 4 /ZnIn 2 S 4异质结在CO中表现出优异的性能2光还原。40 wt% gC 3 N 4 /ZnIn 2 S 4复合材料的最大CO产量可达82.26 μmol·g –1，分别是gC 3 N 4和ZnIn 2 S 4单体的10.1和2.8倍。分别。通过光电化学测量和密度泛函理论（DFT），从实验和理论方面分析了异质结的制造过程和电子变化。最后，我们提出了在gC 3 N 4 /ZnIn上光催化还原CO 2的可行机制2 S 4复合材料。该工作有助于理解氮化碳基材料的结构调控，为新型高效、绿色异质结催化剂的开发提供一定的指导。
更新日期：2023-09-19
中文翻译：
构建 2D/3D g-C3N4/ZnIn2S4 异质结，用于可见光下高效光催化还原 CO2
采用一步水热法结合煅烧工艺构建了2D/3D gC 3 N 4 /ZnIn 2 S 4异质结光催化剂。该复合材料不仅可以利用其异质结构改善光生电子空穴的迁移和分离，而且具有更强的可见光利用效率和CO 2吸附能力，从而改善gC 3 N 4和ZnIn 2 S 4单体的剧烈电荷复合。gC 3 N 4 /ZnIn 2 S 4异质结在CO中表现出优异的性能2光还原。40 wt% gC 3 N 4 /ZnIn 2 S 4复合材料的最大CO产量可达82.26 μmol·g –1，分别是gC 3 N 4和ZnIn 2 S 4单体的10.1和2.8倍。分别。通过光电化学测量和密度泛函理论（DFT），从实验和理论方面分析了异质结的制造过程和电子变化。最后，我们提出了在gC 3 N 4 /ZnIn上光催化还原CO 2的可行机制2 S 4复合材料。该工作有助于理解氮化碳基材料的结构调控，为新型高效、绿色异质结催化剂的开发提供一定的指导。
京公网安备 11010802027423号