g-C3N4 nanosheets coupled with CoSe2 as co-catalyst for efficient photooxidation of xylose to xylonic acid
Photocatalysis has emerged as an effective approach to sustainably convert biomass into value-added products. CoSe2 is a promising non-precious, efficient cocatalyst for photooxidation, which can facilitate the separation of photogenerated electron–holes, increase the reaction rates, and enhance pho...
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| Format: | Article |
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KeAi Communications Co., Ltd.
2025-01-01
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| Series: | Green Energy & Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468025724001031 |
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| author | Qi Hao Yijun Liu Ren Zou Ge Shi Shilian Yang Linxin Zhong Wu Yang Xiao Chi Yunpeng Liu Shimelis Admassie Xinwen Peng |
| author_facet | Qi Hao Yijun Liu Ren Zou Ge Shi Shilian Yang Linxin Zhong Wu Yang Xiao Chi Yunpeng Liu Shimelis Admassie Xinwen Peng |
| author_sort | Qi Hao |
| collection | DOAJ |
| description | Photocatalysis has emerged as an effective approach to sustainably convert biomass into value-added products. CoSe2 is a promising non-precious, efficient cocatalyst for photooxidation, which can facilitate the separation of photogenerated electron–holes, increase the reaction rates, and enhance photocatalytic efficiency. In this work, we synthesized a stable and efficient photocatalysis system of CoSe2/g-C3N4 through attaching CoSe2 on g-C3N4 sheets, with a yield of 50.12% for the selective photooxidation of xylose to xylonic acid. Under light illumination, the photogenerated electrons were prone to migrating from g-C3N4 to CoSe2 due to the higher work function of CoSe2, resulting in the accelerated separation of photogenerated electron–holes and the promoted photooxidation. Herein, this study reveals the unique function of CoSe2, which can significantly promote oxygen adsorption, work as an electron sink and accelerate the generation of ·O2−, thereby improving the selectivity toward xylonic acid over other by-products. This work provides useful insights into the design of selective photocatalysts by engineering g-C3N4 for biomass high-value utilization. |
| format | Article |
| id | doaj-art-3759dd53763c4ddbbceb9c0bbdc59016 |
| institution | Kabale University |
| issn | 2468-0257 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Green Energy & Environment |
| spelling | doaj-art-3759dd53763c4ddbbceb9c0bbdc590162025-01-05T04:28:27ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572025-01-01101231238g-C3N4 nanosheets coupled with CoSe2 as co-catalyst for efficient photooxidation of xylose to xylonic acidQi Hao0Yijun Liu1Ren Zou2Ge Shi3Shilian Yang4Linxin Zhong5Wu Yang6Xiao Chi7Yunpeng Liu8Shimelis Admassie9Xinwen Peng10State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, Guangdong, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, Guangdong, China; Hainan Key Laboratory of Storage & Processing of Fruits and Vegetables, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, 524001, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, Guangdong, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, Guangdong, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, Guangdong, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, Guangdong, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, Guangdong, ChinaDepartment of Chemistry and Centre for Advanced 2D Materials (CA2DM) National University of Singapore 3 Science Drive 3, Singapore, 117543, SingaporeSchool of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528231, Guangdong, ChinaDepartment of Chemistry, Addis Ababa University, PO BOX 1176, Addis Ababa, EthiopiaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, Guangdong, China; Corresponding author.Photocatalysis has emerged as an effective approach to sustainably convert biomass into value-added products. CoSe2 is a promising non-precious, efficient cocatalyst for photooxidation, which can facilitate the separation of photogenerated electron–holes, increase the reaction rates, and enhance photocatalytic efficiency. In this work, we synthesized a stable and efficient photocatalysis system of CoSe2/g-C3N4 through attaching CoSe2 on g-C3N4 sheets, with a yield of 50.12% for the selective photooxidation of xylose to xylonic acid. Under light illumination, the photogenerated electrons were prone to migrating from g-C3N4 to CoSe2 due to the higher work function of CoSe2, resulting in the accelerated separation of photogenerated electron–holes and the promoted photooxidation. Herein, this study reveals the unique function of CoSe2, which can significantly promote oxygen adsorption, work as an electron sink and accelerate the generation of ·O2−, thereby improving the selectivity toward xylonic acid over other by-products. This work provides useful insights into the design of selective photocatalysts by engineering g-C3N4 for biomass high-value utilization.http://www.sciencedirect.com/science/article/pii/S2468025724001031Biomass photooxidationHemicellulosesXyloseg-C3N4Xylonic acid |
| spellingShingle | Qi Hao Yijun Liu Ren Zou Ge Shi Shilian Yang Linxin Zhong Wu Yang Xiao Chi Yunpeng Liu Shimelis Admassie Xinwen Peng g-C3N4 nanosheets coupled with CoSe2 as co-catalyst for efficient photooxidation of xylose to xylonic acid Green Energy & Environment Biomass photooxidation Hemicelluloses Xylose g-C3N4 Xylonic acid |
| title | g-C3N4 nanosheets coupled with CoSe2 as co-catalyst for efficient photooxidation of xylose to xylonic acid |
| title_full | g-C3N4 nanosheets coupled with CoSe2 as co-catalyst for efficient photooxidation of xylose to xylonic acid |
| title_fullStr | g-C3N4 nanosheets coupled with CoSe2 as co-catalyst for efficient photooxidation of xylose to xylonic acid |
| title_full_unstemmed | g-C3N4 nanosheets coupled with CoSe2 as co-catalyst for efficient photooxidation of xylose to xylonic acid |
| title_short | g-C3N4 nanosheets coupled with CoSe2 as co-catalyst for efficient photooxidation of xylose to xylonic acid |
| title_sort | g c3n4 nanosheets coupled with cose2 as co catalyst for efficient photooxidation of xylose to xylonic acid |
| topic | Biomass photooxidation Hemicelluloses Xylose g-C3N4 Xylonic acid |
| url | http://www.sciencedirect.com/science/article/pii/S2468025724001031 |
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