Physicochemical regeneration of industrial spent activated carbons using a green activating agent and their adsorption for methyl orange
文献类型：期刊论文
| 作者 | Fagbohun, Emmanuel Oluwaseyi1,2; Wang, Qianyu1; Spessato, Lucas3; Zheng, Yuhua1; Li, Wenli1,2; Olatoye, Abiola Ganiyat1,2; Cui, Yanbin1,2 |
| 刊名 | SURFACES AND INTERFACES
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 29页码:15 |
| ISSN号 | 2468-0230 |
| 关键词 | Regeneration Spent activated carbon Adsorption Green activating agent Methyl orange |
| DOI | 10.1016/j.surfin.2021.101696 |
| 英文摘要 | Thermal regeneration of spent activated carbons (SACs) is widely used in industry. However, low specific surface areas (SBET) of regenerated activated carbons (RACs) are achieved after thermal regeneration, constraining the adsorption of contaminants. Herein, a green chemical mixture of K2CO3 and KCl compared to conventional activating agents was used to regenerate SAC1 and SAC2, all prepared from plants and used to adsorb compounds in pharmaceutical and food factory respectively. Two kinds of RAC were used for the adsorption of methyl orange (MO). The SBET value of SAC1 after regeneration increased from 592 m(2) g(-1) to 1830 m(2) g(-1) with an abundance of micropores, and the SBET of SAC2 after regeneration increased from 3 m(2) g(-1) to 1802 m(2) g(-1) consisting of mesopores. A high carbon yield of 73% for RAC was achieved due to the presence of a KCl activating agent. A maximum MO adsorption capacity (Q(m)) of 733.73 mg g(-1) and 755.73 mg g(-1) was achieved for RAC1 and RAC2, respectively. After five cycles of adsorption-regeneration, the Q(m) of RAC1 and RAC2 was 577.66 mg g(-1) and 567.63 mg g(-1), and the SBET was 1122 m(2) g(-1) and 1101 m(2) g(-1), respectively. This work shows that the combination of K2CO3 and KCl can be used as an activating agent to achieve high specific surface area and carbon yield. |
| WOS关键词 | CHEMICAL ACTIVATION ; POROUS CARBON ; THERMAL REGENERATION ; AQUEOUS-SOLUTION ; BLUE DYE ; REMOVAL ; WASTE ; BIOMASS ; COAL ; TECHNOLOGIES |
| 资助项目 | National Natural Science Foundation of China[22076189] |
| WOS研究方向 | Chemistry ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000764896400001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/52401]  |
| 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 3.Univ Estadual Maringa, Dept Chem, Multifunct Carbonaceous Mat Lab, Av Colombo 5790, Maringa, Parana, Brazil |
| 推荐引用方式 GB/T 7714 | Fagbohun, Emmanuel Oluwaseyi,Wang, Qianyu,Spessato, Lucas,et al. Physicochemical regeneration of industrial spent activated carbons using a green activating agent and their adsorption for methyl orange[J]. SURFACES AND INTERFACES,2022,29:15. |
| APA | Fagbohun, Emmanuel Oluwaseyi.,Wang, Qianyu.,Spessato, Lucas.,Zheng, Yuhua.,Li, Wenli.,...&Cui, Yanbin.(2022).Physicochemical regeneration of industrial spent activated carbons using a green activating agent and their adsorption for methyl orange.SURFACES AND INTERFACES,29,15. |
| MLA | Fagbohun, Emmanuel Oluwaseyi,et al."Physicochemical regeneration of industrial spent activated carbons using a green activating agent and their adsorption for methyl orange".SURFACES AND INTERFACES 29(2022):15. |
入库方式： OAI收割
来源：过程工程研究所
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