Bio-inspired synthesis of N-doped TiO2/C nanocrystals using jellyfish mucus with high visible-light photocatalytic efficiency
文献类型：期刊论文
| 作者 | Feng, Song1,7 ; Liu, Lingchen2,6; Lin, Jianing4,5; Wang, Ziwei3; Gu, Jinzeng4,5; Zhang, Lutao4,5; Zhang, Bin6; Sun, Song1,7
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| 刊名 | NANOSCALE ADVANCES
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| 出版日期 | 2024-07-23 |
| 卷号 | 6期号:15页码:17 |
| ISSN号 | 2516-0230 |
| DOI | 10.1039/d4na00309h |
| 通讯作者 | Feng, Song(fengsong@qdio.ac.cn) ; Liu, Lingchen(lingchen2773@163.com) ; Lin, Jianing(linjianing@sdu.edu.cn) ; Zhang, Bin(0720060057@mail.xhu.edu.cn) |
| 英文摘要 | Non-metal doping of titanium dioxide (TiO2) has been widely investigated, because it can facilely improve the optical response of TiO2 under visible light excitation in environmental pollution treatments. In the ongoing efforts, however, little consideration has been given to the use of harmful marine organisms as dopants. Here, we employed the natural mucus proteins of the large harmful jellyfish Aurelia coerulea and Nemopilema nomurai, which have frequently bloomed in East Asian marginal seas in recent decades, to synthesize mesoporous nitrogen-doped TiO2 nanocrystals modified with carbon (N-TiO2/C) by a simple hydrothermal method. These nanocrystals were composed of predominantly anatase phase and a small amount of brookite phase TiO2. Their mesoporous structures changed with the variation of the volume ratio of jellyfish mucus added to tetrabutyl titanate (TBT). At the same ratio, larger surface area and pore volume but smaller pore size were observed in N-TiO2/C nanocrystals from N. nomurai rather than A. coerulea. Nitrogen was determinately doped into the lattice of the prepared nanocrystals and the carbon species were modified on their surfaces, which narrowed the band gap, facilitated the separation of photogenerated electron-hole pairs and favored the absorption of visible light, thus improving their visible light photocatalytic activity. The photocatalytic degradation efficiency of Rhodamine B (RhB) under visible light irradiation first increased and then decreased with the gradual increase of the volume ratio of jellyfish mucus proteins to TBT. The maximum reached 97.52% in 20 min from N-TiO2/C nanocrystals synthesized using N. nomurai mucus at the volume ratio of 4 : 1, which showed a remarkably strong visible light absorption, lower band gap energy and smaller electron transfer resistance. These N-TiO2/C nanocrystals also had a relatively stable crystal structure in multiple degradation reactions. The main active species including superoxide radicals (O-center dot(2)-), photogenerated holes (h(+)) and hydroxyl radicals ((OH)-O-center dot) were found to play a major role in the degradation process of RhB. This study highlights the potential high-value reapplication of harmful jellyfish mucus as a natural organic matrix in fabricating advanced materials with optimized functional properties. |
| WOS关键词 | IN-SITU SYNTHESIS ; FACILE SYNTHESIS ; NITROGEN ; HETEROSTRUCTURES ; NANOCOMPOSITES ; NANOMATERIALS ; ORIGIN |
| 资助项目 | National Key Research and Development Program of China[2023YFC3108204] ; National Natural Science Foundation of China[42176136] ; National Natural Science Foundation of China[42211540390] ; National Natural Science Foundation of China[42130411] ; Chinese Academy of Sciences[058GJHZ2022097FN] ; Natural Science Foundation of Shandong Province[ZR2020KE047] ; Ministry of Education Chun Hui plan project[202201136] ; Youth Innovation Promotion Association Project, Chinese Academy of Sciences ; Institute of Oceanology, Chinese Academy of Sciences |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001265390900001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/186326]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 通讯作者 | Feng, Song; Liu, Lingchen; Lin, Jianing; Zhang, Bin |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Marine Sci, Qingdao 266400, Peoples R China 2.Bur Nat Resources Daan Dist, Zigong 643000, Peoples R China 3.Liaoning Univ, Shenyang 110036, Peoples R China 4.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 5.Shandong Univ, Inst Ecoenvironm Forens, Qingdao 266237, Peoples R China 6.Xihua Univ, Sch Architecture & Civil Engn, Chengdu 610039, Peoples R China 7.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Song,Liu, Lingchen,Lin, Jianing,et al. Bio-inspired synthesis of N-doped TiO2/C nanocrystals using jellyfish mucus with high visible-light photocatalytic efficiency[J]. NANOSCALE ADVANCES,2024,6(15):17. |
| APA | Feng, Song.,Liu, Lingchen.,Lin, Jianing.,Wang, Ziwei.,Gu, Jinzeng.,...&Sun, Song.(2024).Bio-inspired synthesis of N-doped TiO2/C nanocrystals using jellyfish mucus with high visible-light photocatalytic efficiency.NANOSCALE ADVANCES,6(15),17. |
| MLA | Feng, Song,et al."Bio-inspired synthesis of N-doped TiO2/C nanocrystals using jellyfish mucus with high visible-light photocatalytic efficiency".NANOSCALE ADVANCES 6.15(2024):17. |
入库方式： OAI收割
来源：海洋研究所
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