| Nitrogen-doped hydrochars from shrimp waste as visible-light photocatalysts: Roles of nitrogen species | |
Chen, Zeliang; Jia, Hongxia; Guo, Yanchuan; Li, Yi; Liu, Zhengang
| |
| 2022-05-15 | |
| Source Publication | ENVIRONMENTAL RESEARCH
 |
| ISSN | 0013-9351 |
| Volume | 208Issue:0Pages:112695 |
| Abstract | The increasing shrimp waste production has caused severe environmental problems. In this study, nitrogen doped hydrochars (NDHCs) were facilely synthesized from shrimp waste and glucose by one-pot hydrothermal carbonization (HTC). The characterizations showed that NDHCs had large surface areas of up to 30.5 m(2) g(-1) with numerous functional groups on their porous surfaces. The nitrogen content (1.3-2.8%) and species distribution in NDHCs were associated with the amount of added glucose. These NDHCs were applied as visible-light-induced photocatalysts, and their photocatalytic performances were evaluated by methylene blue (MB) degradation. The removal rate of MB reached 88.9% after 1 h of visible light radiation by NDHC-1, which was 2.3 times higher than that of glucose-derived hydrochar (GHC). The mechanism study showed that the improved photoactivity of NDHCs was attributed to the increased adsorption capacity by porous surface and the promoted formation of hydroxyl radicals by synergistic effects of quaternary N and pyrrolic N during photocatalysis. This study offered a green approach to preparing tunable, efficient, and low-cost photocatalyst from waste biomass and insight into the photocatalytic mechanism of hydrochar materials. |
| Department | 固体废弃物处理与资源化实验室 ; 固体废弃物处理与资源化实验室 |
| Keyword | HYDROTHERMAL CARBONIZATION GRAPHENE CARBONS |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/47436 |
| Collection | 固体废弃物处理与资源化实验室 |
| Corresponding Author | Liu, Zhengang |
| Affiliation | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, 18 Shuangqing Rd, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Informat Ctr Minist Ecol & Environm, 1 Yuhui South Rd, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, 29 Zhongguancun East Rd, Beijing 100190, Peoples R China 5.Chinese Acad Sci, Inst Proc Engn IPE, State Key Lab Multiphase Complex Syst, Beijing 100190, Pe |
| Recommended Citation GB/T 7714 | Chen, Zeliang,Jia, Hongxia,Guo, Yanchuan,et al. Nitrogen-doped hydrochars from shrimp waste as visible-light photocatalysts: Roles of nitrogen species[J]. ENVIRONMENTAL RESEARCH,2022,208(0):112695. |
| APA | Chen, Zeliang,Jia, Hongxia,Guo, Yanchuan,Li, Yi,&Liu, Zhengang.(2022).Nitrogen-doped hydrochars from shrimp waste as visible-light photocatalysts: Roles of nitrogen species.ENVIRONMENTAL RESEARCH,208(0),112695. |
| MLA | Chen, Zeliang,et al."Nitrogen-doped hydrochars from shrimp waste as visible-light photocatalysts: Roles of nitrogen species".ENVIRONMENTAL RESEARCH 208.0(2022):112695. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Nitrogen-doped hydro（5257KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment