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| Removal Study of Crystal Violet and Methylene Blue From Aqueous Solution by Activated Carbon Embedded Zero-Valent Iron: Effect of Reduction Methods | |
Wang, Yongmei1; Chen, Tiantian2 ; Zhang, Xiaolin3; Mwamulima, Teza3
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| 2021-12-21 | |
| 发表期刊 | FRONTIERS IN ENVIRONMENTAL SCIENCE
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| 卷号 | 9页码:13 |
| 通讯作者 | Chen, Tiantian([email protected]) |
| 摘要 | Zero valent iron (ZVI) particles were embedded into porous materials to avoid aggregation and separation problems in the controlled synthesis process. To investigate the adsorption mechanism of crystal violet and methylene blue, activated carbon (AC) and AC-based ZVI extraction by solid-phase and liquid-phase reduced approaches was conducted. Characterization methods of specific surface area, scanning electron microscopy (SEM), and x-ray diffractograms (XRD) were used to elucidate the structure of adsorbents, and the adsorption capacities of crystal violet and methylene blue were obtained under experimental conditions of various pH values (2.0-10.0), adsorption times (0-72 h), and temperatures (30-50 degrees C). The adsorption of crystal violet/methylene blue was controlled by both chemisorption and reduction. The adsorption processes were fitted to a pseudo-second-order kinetic model, and that of reduction kinetics was suitable to pseudo-first-order kinetic model. The thermodynamic study revealed that the adsorption of crystal violet and methylene blue was endothermic and spontaneous, and the adsorption isotherms fitted well to the Langmuir model. Different adsorption capacities of crystal violet and methylene blue on various adsorbents were found, indicating that both the properties of adsorbents (pore size, specific surface area, and chemical functional groups) and the structures of adsorbates had significant effect on the removal of dye molecules. |
| 关键词 | water pollution activated carbon zero valent iron crystal violet methylene blue |
| DOI | 10.3389/fenvs.2021.799264 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| WOS记录号 | WOS:000739077500001 |
| 出版者 | FRONTIERS MEDIA SA |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/177660 |
| 专题 | 海洋生态与环境科学重点实验室 |
| 通讯作者 | Chen, Tiantian |
| 作者单位 | 1.Shandong Univ Sci & Technol, Coll Safety & Environm Engn, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Ocean Univ China, Coll Environm Sci & Engn, Qingdao, Peoples R China |
| 通讯作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Yongmei,Chen, Tiantian,Zhang, Xiaolin,et al. Removal Study of Crystal Violet and Methylene Blue From Aqueous Solution by Activated Carbon Embedded Zero-Valent Iron: Effect of Reduction Methods[J]. FRONTIERS IN ENVIRONMENTAL SCIENCE,2021,9:13. |
| APA | Wang, Yongmei,Chen, Tiantian,Zhang, Xiaolin,&Mwamulima, Teza.(2021).Removal Study of Crystal Violet and Methylene Blue From Aqueous Solution by Activated Carbon Embedded Zero-Valent Iron: Effect of Reduction Methods.FRONTIERS IN ENVIRONMENTAL SCIENCE,9,13. |
| MLA | Wang, Yongmei,et al."Removal Study of Crystal Violet and Methylene Blue From Aqueous Solution by Activated Carbon Embedded Zero-Valent Iron: Effect of Reduction Methods".FRONTIERS IN ENVIRONMENTAL SCIENCE 9(2021):13. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| fenvs-09-799264.pdf（3853KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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