Novel Z-scheme composite Ag2CrO4/NG/polyimide as high performance nano catalyst for photoreduction of CO2: design, fabrication, characterization and mechanism
The evolution of new Z-scheme composites aids to solve the increasing energy demand via artificial photosynthesis. This research introduced novel Z-scheme nanocomposite, Ag2CrO4/nitrogen-doped graphene /Polyimide (Ag2CrO4/NG/PI), and its photocatalytic activity in CO2 reduction under simulated sunli...
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| Format: | Article |
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Elsevier B.V.
2019
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| _version_ | 1796864463697084416 |
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| author | Zhou, Liang Kamyab, Hesam Surendar, Aravindhan Maseleno, Andino Ibatova, Aygul Z. Chelliapan, Shreeshivadasan Karachi, Nima Parsaee, Zohreh |
| author_facet | Zhou, Liang Kamyab, Hesam Surendar, Aravindhan Maseleno, Andino Ibatova, Aygul Z. Chelliapan, Shreeshivadasan Karachi, Nima Parsaee, Zohreh |
| author_sort | Zhou, Liang |
| collection | ePrints |
| description | The evolution of new Z-scheme composites aids to solve the increasing energy demand via artificial photosynthesis. This research introduced novel Z-scheme nanocomposite, Ag2CrO4/nitrogen-doped graphene /Polyimide (Ag2CrO4/NG/PI), and its photocatalytic activity in CO2 reduction under simulated sunlight irradiation. The nanocomposite was prepared with ultrasound-assisted in-situ deposition of different amounts of Ag2CrO4-NPs on NG/ PI and completely characterized using various techniques such as AFM, FE-SEM, XPS, XRD, FT-IR, DRS and PL which confirmed the presence of Ag2CrO4, NG and PI in the composite structure. The photocatalytic investigations showed a significant promotion for light absorption ability of Ag2CrO4 on NG and PI. The high performance photocatalytic activity of Ag2CrO4/NG/PI can be interpreted by the gap of EHPs in the photocatalyst as a Z-scheme due to the construction of hetero-linkage structure between Ag2CrO4 and PI. Meanwhile, the presence of the pyridinic N as an unique selective site toward CO generation, can reduce the free energy barrier for the potential-limiting step to compose important intermediates which lead to high-efficiency photocatalyst activity. The optimal Ag2CrO4/NG/PI (25AN) photocatalyst presented a CO2 photoreduction rate of 352.1 μmol h−1·gcat −1, which was higher than previously reported works under similar condition. This investigation introduces a novel photocatalyst nanocomposite of the, Ag2CrO4/NG/PI, in concurrent natural resources conservation and green productivity. |
| first_indexed | 2024-03-05T20:42:15Z |
| format | Article |
| id | utm.eprints-87548 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:42:15Z |
| publishDate | 2019 |
| publisher | Elsevier B.V. |
| record_format | dspace |
| spelling | utm.eprints-875482020-11-08T04:06:15Z http://eprints.utm.my/87548/ Novel Z-scheme composite Ag2CrO4/NG/polyimide as high performance nano catalyst for photoreduction of CO2: design, fabrication, characterization and mechanism Zhou, Liang Kamyab, Hesam Surendar, Aravindhan Maseleno, Andino Ibatova, Aygul Z. Chelliapan, Shreeshivadasan Karachi, Nima Parsaee, Zohreh T Technology (General) TA Engineering (General). Civil engineering (General) The evolution of new Z-scheme composites aids to solve the increasing energy demand via artificial photosynthesis. This research introduced novel Z-scheme nanocomposite, Ag2CrO4/nitrogen-doped graphene /Polyimide (Ag2CrO4/NG/PI), and its photocatalytic activity in CO2 reduction under simulated sunlight irradiation. The nanocomposite was prepared with ultrasound-assisted in-situ deposition of different amounts of Ag2CrO4-NPs on NG/ PI and completely characterized using various techniques such as AFM, FE-SEM, XPS, XRD, FT-IR, DRS and PL which confirmed the presence of Ag2CrO4, NG and PI in the composite structure. The photocatalytic investigations showed a significant promotion for light absorption ability of Ag2CrO4 on NG and PI. The high performance photocatalytic activity of Ag2CrO4/NG/PI can be interpreted by the gap of EHPs in the photocatalyst as a Z-scheme due to the construction of hetero-linkage structure between Ag2CrO4 and PI. Meanwhile, the presence of the pyridinic N as an unique selective site toward CO generation, can reduce the free energy barrier for the potential-limiting step to compose important intermediates which lead to high-efficiency photocatalyst activity. The optimal Ag2CrO4/NG/PI (25AN) photocatalyst presented a CO2 photoreduction rate of 352.1 μmol h−1·gcat −1, which was higher than previously reported works under similar condition. This investigation introduces a novel photocatalyst nanocomposite of the, Ag2CrO4/NG/PI, in concurrent natural resources conservation and green productivity. Elsevier B.V. 2019-01-01 Article PeerReviewed Zhou, Liang and Kamyab, Hesam and Surendar, Aravindhan and Maseleno, Andino and Ibatova, Aygul Z. and Chelliapan, Shreeshivadasan and Karachi, Nima and Parsaee, Zohreh (2019) Novel Z-scheme composite Ag2CrO4/NG/polyimide as high performance nano catalyst for photoreduction of CO2: design, fabrication, characterization and mechanism. Journal of Photochemistry and Photobiology A: Chemistry, 368 . pp. 30-40. ISSN 1010-6030 http://dx.doi.org/10.1016/j.jphotochem.2018.09.006 DOI:10.1016/j.jphotochem.2018.09.006 |
| spellingShingle | T Technology (General) TA Engineering (General). Civil engineering (General) Zhou, Liang Kamyab, Hesam Surendar, Aravindhan Maseleno, Andino Ibatova, Aygul Z. Chelliapan, Shreeshivadasan Karachi, Nima Parsaee, Zohreh Novel Z-scheme composite Ag2CrO4/NG/polyimide as high performance nano catalyst for photoreduction of CO2: design, fabrication, characterization and mechanism |
| title | Novel Z-scheme composite Ag2CrO4/NG/polyimide as high performance nano catalyst for photoreduction of CO2: design, fabrication, characterization and mechanism |
| title_full | Novel Z-scheme composite Ag2CrO4/NG/polyimide as high performance nano catalyst for photoreduction of CO2: design, fabrication, characterization and mechanism |
| title_fullStr | Novel Z-scheme composite Ag2CrO4/NG/polyimide as high performance nano catalyst for photoreduction of CO2: design, fabrication, characterization and mechanism |
| title_full_unstemmed | Novel Z-scheme composite Ag2CrO4/NG/polyimide as high performance nano catalyst for photoreduction of CO2: design, fabrication, characterization and mechanism |
| title_short | Novel Z-scheme composite Ag2CrO4/NG/polyimide as high performance nano catalyst for photoreduction of CO2: design, fabrication, characterization and mechanism |
| title_sort | novel z scheme composite ag2cro4 ng polyimide as high performance nano catalyst for photoreduction of co2 design fabrication characterization and mechanism |
| topic | T Technology (General) TA Engineering (General). Civil engineering (General) |
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