Fabrication of hydrophobic regenerated activated carbon with high specific surface area
文献类型：期刊论文
| 作者 | Li, Wenli1,2; Zhang, Qiongyuan1; Zhang, Jie1; Zheng, Yuhua1; Zhang, Hao1,2; Liu, Jiao1; Cui, Yanbin1,2 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE
 |
| 出版日期 | 2021-09-20 |
| 页码 | 14 |
| ISSN号 | 0022-2461 |
| DOI | 10.1007/s10853-021-06525-6 |
| 英文摘要 | Activated carbon (AC) has been widely used in the prevention and control of air and water pollution due to its excellent adsorption ability. However, the adsorption capacity of AC for targeting organic compounds is reduced because of the competitive adsorption of water molecules. The current study proposes hydrophobic modification and regeneration of waste AC as a solution to these issues. Using waste AC as raw material, SiO2 particles were introduced to increase its surface roughness and micropores of AC. Nonpolar alkyl chain groups were grafted on the surface of AC to improve its hydrophobic performance, and high-temperature regeneration was used to increase its specific surface area. The experimental results showed that the water contact angle of AC increased from 30 degrees (hydrophilic) to 142 degrees (hydrophobic) after modification, and it maintained an angle of 139 degrees even after high-temperature regeneration. The specific surface area of hydrophobic AC increased from 290 to 1075 m(2) g(-1) and the equilibrium adsorption capacity of hydrophobic AC for methylene blue is 425.4 mg g(-1) after regeneration. AC-adsorbed methylene blue also has excellent hydrophobicity (145 degrees) and high specific surface area (1250 m(2) g(-1)) after being modified and regenerated by the same methods. After being exposed to air for 600 days, the modified AC still has good hydrophobicity (125 degrees). This indicates that our method of hydrophobic modification combined with regeneration has great significance to the recovery and utilization of waste AC. |
| WOS关键词 | METHYLENE-BLUE ; ADSORPTION ; PERFORMANCE ; REMOVAL ; DYES ; MB ; MECHANISM ; BEHAVIOR ; SORPTION |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000698085900001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/50263]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Cui, Yanbin |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Wenli,Zhang, Qiongyuan,Zhang, Jie,et al. Fabrication of hydrophobic regenerated activated carbon with high specific surface area[J]. JOURNAL OF MATERIALS SCIENCE,2021:14. |
| APA | Li, Wenli.,Zhang, Qiongyuan.,Zhang, Jie.,Zheng, Yuhua.,Zhang, Hao.,...&Cui, Yanbin.(2021).Fabrication of hydrophobic regenerated activated carbon with high specific surface area.JOURNAL OF MATERIALS SCIENCE,14. |
| MLA | Li, Wenli,et al."Fabrication of hydrophobic regenerated activated carbon with high specific surface area".JOURNAL OF MATERIALS SCIENCE (2021):14. |
入库方式： OAI收割
来源：过程工程研究所
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