When 2D g-C3N4 meets 0D CNQDs and 1D CNTs: A strategy for photocatalytic hydrogen production over a ternary non-metallic catalyst
文献类型：期刊论文
| 作者 | Jing, Xiaoqing5; Zhang, Yan5; Chang, Hui4; Qiu, Ri5; Xie, Hongbo5; Yang, Weiting5; Zhang, Mingzhi5; Wang, Wenqi5; Liu, Qing3 ; Wang, Xiutong1
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| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
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| 出版日期 | 2024-09-06 |
| 卷号 | 343页码:12 |
| 关键词 | g-C3N4 CNQDs CNTs Visible light catalysis Hydrogen production |
| ISSN号 | 1383-5866 |
| DOI | 10.1016/j.seppur.2024.127161 |
| 通讯作者 | Zhang, Yan(tougaoktz@163.com) ; Chang, Hui(changhui2000_mic@sdust.edu.cn) |
| 英文摘要 | Utilizing solar energy to facilitate photocatalytic hydrogen production holds great promise in addressing the energy crisis. One material that shows tremendous potential in this field is two-dimensional graphitic carbon nitride (2D g-C3N4). However, the fast recombination rate of photogenerated carriers and the limited specific surface area impede its photocatalytic activity. This research endeavors to address these limitations by developing a ternary composite photocatalyst, CNQDs/g-C3N4/CNTs, by employing the microwave hydrothermal method. g-C3N4 was co-modified with zero-dimensional g-C3N4 quantum dots (0D CNQDs) and one-dimensional carbon nanotubes (1D CNTs). Incorporating CNQDs and the g-C3N4 interface facilitates the separation of photogenerated carriers, while the tubular channel of CNTs provides favorable conditions for transferring photogenerated electrons. Additionally, the introduction of CNQDs and CNTs significantly increases the specific surface area of the sample, thereby enhancing the number of reaction active sites available for the photocatalytic production of hydrogen. The hydrogen generation rate of the CNQDs/g-C3N4/CNTs is 1109.388 mu mol.g(-1).h(-1), surpassing that of the single g-C3N4 specimen by 3.62 times. The application of density functional theory (DFT) calculations reinforces the enhanced performance of the composite through the synergistic effect of CNQDs and CNTs. This effect optimizes the adsorption behavior of the active intermediate (H*) and reduces the Gibbs free energy Delta G(H*) associated with the photocatalytic hydrogen evolution reaction. |
| WOS关键词 | EVOLUTION ; INSIGHT ; GO |
| 资助项目 | Shandong Province Natural Science Foundation[ZR202103010716] ; Natural Science Foundation of Qingdao[SKDZK20230097] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001221137300001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/185772]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Zhang, Yan; Chang, Hui |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA 3.Shandong Univ Sci & Technol, Coll Chem & Biol Engn, Qingdao 266590, Peoples R China 4.Shandong Univ Sci & Technol, Coll Elect & Automat Engn, Qingdao 266590, Peoples R China 5.Shandong Univ Sci & Technol, Coll Safety & Environm Engn, Qingdao 266590, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jing, Xiaoqing,Zhang, Yan,Chang, Hui,et al. When 2D g-C3N4 meets 0D CNQDs and 1D CNTs: A strategy for photocatalytic hydrogen production over a ternary non-metallic catalyst[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2024,343:12. |
| APA | Jing, Xiaoqing.,Zhang, Yan.,Chang, Hui.,Qiu, Ri.,Xie, Hongbo.,...&Lyu, Xianjun.(2024).When 2D g-C3N4 meets 0D CNQDs and 1D CNTs: A strategy for photocatalytic hydrogen production over a ternary non-metallic catalyst.SEPARATION AND PURIFICATION TECHNOLOGY,343,12. |
| MLA | Jing, Xiaoqing,et al."When 2D g-C3N4 meets 0D CNQDs and 1D CNTs: A strategy for photocatalytic hydrogen production over a ternary non-metallic catalyst".SEPARATION AND PURIFICATION TECHNOLOGY 343(2024):12. |
入库方式： OAI收割
来源：海洋研究所
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