Constructing an S‐Scheme Heterojunction between CdIn2S4 and an In2O3 Catalyst for Enhanced Photocatalytic Activity
Herein, a novel CdIn2S4/In2O3 heterojunction photocatalyst, aiming to enhance photocatalytic performance for pollutant degradation, is fabricated by a self‐assembly process at low temperature. Ternary CdIn2S4 nanoparticles are uniformly deposited on the In2O3 nanoflowers, forming a step‐scheme (S‐sc...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2022-08-01
|
| Series: | Advanced Energy & Sustainability Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/aesr.202200012 |
| _version_ | 1811344157957947392 |
|---|---|
| author | Chengyu Yuan Xuejun Zou Fan He Yuying Dong Yubo Cui Hui Ge Yang Hou |
| author_facet | Chengyu Yuan Xuejun Zou Fan He Yuying Dong Yubo Cui Hui Ge Yang Hou |
| author_sort | Chengyu Yuan |
| collection | DOAJ |
| description | Herein, a novel CdIn2S4/In2O3 heterojunction photocatalyst, aiming to enhance photocatalytic performance for pollutant degradation, is fabricated by a self‐assembly process at low temperature. Ternary CdIn2S4 nanoparticles are uniformly deposited on the In2O3 nanoflowers, forming a step‐scheme (S‐scheme) hybrid heterostructure. As a result, the light absorption efficiency and charge separation efficiency of CdIn2S4/In2O3 are greatly improved. Among these fabricated samples are activated by visible light, and the degradation efficiency of gaseous acetone is as great as 92.3% over 10% CdIn2S4/In2O3 within 3 h, which is the highest value observed. Furthermore, the key intermediate compounds are elucidated using in situ Fourier transform infrared (FTIR) spectra, which strongly validate the hypothesized light degradation mechanism over CdIn2S4/In2O3. Correspondingly, a potential photocatalytic mechanism over CdIn2S4/In2O3 S‐scheme heterojunction is explored and discussed. |
| first_indexed | 2024-04-13T19:42:48Z |
| format | Article |
| id | doaj.art-ff982c001e7c4e5fbadc984baa3e6fd3 |
| institution | Directory Open Access Journal |
| issn | 2699-9412 |
| language | English |
| last_indexed | 2024-04-13T19:42:48Z |
| publishDate | 2022-08-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Energy & Sustainability Research |
| spelling | doaj.art-ff982c001e7c4e5fbadc984baa3e6fd32022-12-22T02:32:51ZengWiley-VCHAdvanced Energy & Sustainability Research2699-94122022-08-0138n/an/a10.1002/aesr.202200012Constructing an S‐Scheme Heterojunction between CdIn2S4 and an In2O3 Catalyst for Enhanced Photocatalytic ActivityChengyu Yuan0Xuejun Zou1Fan He2Yuying Dong3Yubo Cui4Hui Ge5Yang Hou6Department of Environmental Science and Technology Dalian Minzu University Dalian 116600 ChinaDepartment of Environmental Science and Technology Dalian Minzu University Dalian 116600 ChinaKey Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering Zhejiang University Hangzhou 310012 ChinaDepartment of Environmental Science and Technology Dalian Minzu University Dalian 116600 ChinaDepartment of Environmental Science and Technology Dalian Minzu University Dalian 116600 ChinaDepartment of Environmental Science and Technology Dalian Minzu University Dalian 116600 ChinaKey Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering Zhejiang University Hangzhou 310012 ChinaHerein, a novel CdIn2S4/In2O3 heterojunction photocatalyst, aiming to enhance photocatalytic performance for pollutant degradation, is fabricated by a self‐assembly process at low temperature. Ternary CdIn2S4 nanoparticles are uniformly deposited on the In2O3 nanoflowers, forming a step‐scheme (S‐scheme) hybrid heterostructure. As a result, the light absorption efficiency and charge separation efficiency of CdIn2S4/In2O3 are greatly improved. Among these fabricated samples are activated by visible light, and the degradation efficiency of gaseous acetone is as great as 92.3% over 10% CdIn2S4/In2O3 within 3 h, which is the highest value observed. Furthermore, the key intermediate compounds are elucidated using in situ Fourier transform infrared (FTIR) spectra, which strongly validate the hypothesized light degradation mechanism over CdIn2S4/In2O3. Correspondingly, a potential photocatalytic mechanism over CdIn2S4/In2O3 S‐scheme heterojunction is explored and discussed.https://doi.org/10.1002/aesr.202200012CdIn2S4/In2O3heterojunctionsphotocatalysisS-scheme |
| spellingShingle | Chengyu Yuan Xuejun Zou Fan He Yuying Dong Yubo Cui Hui Ge Yang Hou Constructing an S‐Scheme Heterojunction between CdIn2S4 and an In2O3 Catalyst for Enhanced Photocatalytic Activity Advanced Energy & Sustainability Research CdIn2S4/In2O3 heterojunctions photocatalysis S-scheme |
| title | Constructing an S‐Scheme Heterojunction between CdIn2S4 and an In2O3 Catalyst for Enhanced Photocatalytic Activity |
| title_full | Constructing an S‐Scheme Heterojunction between CdIn2S4 and an In2O3 Catalyst for Enhanced Photocatalytic Activity |
| title_fullStr | Constructing an S‐Scheme Heterojunction between CdIn2S4 and an In2O3 Catalyst for Enhanced Photocatalytic Activity |
| title_full_unstemmed | Constructing an S‐Scheme Heterojunction between CdIn2S4 and an In2O3 Catalyst for Enhanced Photocatalytic Activity |
| title_short | Constructing an S‐Scheme Heterojunction between CdIn2S4 and an In2O3 Catalyst for Enhanced Photocatalytic Activity |
| title_sort | constructing an s scheme heterojunction between cdin2s4 and an in2o3 catalyst for enhanced photocatalytic activity |
| topic | CdIn2S4/In2O3 heterojunctions photocatalysis S-scheme |
| url | https://doi.org/10.1002/aesr.202200012 |
| work_keys_str_mv | AT chengyuyuan constructingansschemeheterojunctionbetweencdin2s4andanin2o3catalystforenhancedphotocatalyticactivity AT xuejunzou constructingansschemeheterojunctionbetweencdin2s4andanin2o3catalystforenhancedphotocatalyticactivity AT fanhe constructingansschemeheterojunctionbetweencdin2s4andanin2o3catalystforenhancedphotocatalyticactivity AT yuyingdong constructingansschemeheterojunctionbetweencdin2s4andanin2o3catalystforenhancedphotocatalyticactivity AT yubocui constructingansschemeheterojunctionbetweencdin2s4andanin2o3catalystforenhancedphotocatalyticactivity AT huige constructingansschemeheterojunctionbetweencdin2s4andanin2o3catalystforenhancedphotocatalyticactivity AT yanghou constructingansschemeheterojunctionbetweencdin2s4andanin2o3catalystforenhancedphotocatalyticactivity |