Comparative research on selective adsorption of Pb(II) by biosorbents prepared by two kinds of modifying waste biomass: Highly-efficient performance, application and mechanism
文献类型：期刊论文
| 作者 | Chen, Ming1,2,3; Wang, Xianfeng1,3; Zhang, Hao1,3 |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| 出版日期 | 2021-06-15 |
| 卷号 | 288页码:8 |
| 关键词 | Xanthate modified biosorbent Heavy metal One-step method Selective adsorption |
| ISSN号 | 0301-4797 |
| DOI | 10.1016/j.jenvman.2021.112388 |
| 通讯作者 | Chen, Ming(mchensn@hnu.edu.cn) |
| 英文摘要 | In this study, we used xanthate to modify two waste biomass materials (corn cob and chestnut shell) and prepared them as biosorbents in one step for effectively removing Pb(II) from aqueous solutions containing only Pb (II) or Pb(II), Cu(II) and Cd(II). The two biosorbents were characterized by SEM, EDS, FTIR and Zeta potential analysis, and the results of the characterization were used to explore the adsorption mechanism of Pb(II) on biosorbents. We compare the Pb(II) removal ability of the two biosorbents and the investigated factors that affect Pb(II) removal. The results show that the adsorption capacity of xanthate modified corn cob (X?CC) and xanthate modified chestnut shell (X?CS) for Pb(II) is related to pH, reaction time, temperature and initial concentrations of both adsorbent and adsorbate. The adsorption of Pb(II) on X?CC and X?CS follows Langmuir isotherm equation and quasi-secondary kinetic equation, and their fitted qm values are 166.39 and 124.84 mg g-1, respectively. The analysis shows that the biosorbent has high selectivity to Pb(II) rather than Cu(II) and Cd(II), and still maintains a high removal rate of Pb(II) in actual wastewater. The biosorbents remove metal ions mainly through ion exchange reaction and the functional group in the material complexes with the metal to form micro-precipitation. The high adsorption capacity in aqueous solution and low costs in the manufacturing process of the present biosorbents ensure that they have great potential in practical applications for treating heavy-metal contaminated surface water. |
| 资助项目 | 100 Talents Program of Chinese Academy of Sciences[E190620201] ; Program for Ecological restoration and engineering in Chinese Academy of Sciences, Chongqing[E055620201] ; Fundamental Research Funds for the Central Universities[531107051161] ; Fundamental Research Funds for the Central Universities[531118010167] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000644084500002 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/13393]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Chen, Ming |
| 作者单位 | 1.Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China 3.Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ming,Wang, Xianfeng,Zhang, Hao. Comparative research on selective adsorption of Pb(II) by biosorbents prepared by two kinds of modifying waste biomass: Highly-efficient performance, application and mechanism[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2021,288:8. |
| APA | Chen, Ming,Wang, Xianfeng,&Zhang, Hao.(2021).Comparative research on selective adsorption of Pb(II) by biosorbents prepared by two kinds of modifying waste biomass: Highly-efficient performance, application and mechanism.JOURNAL OF ENVIRONMENTAL MANAGEMENT,288,8. |
| MLA | Chen, Ming,et al."Comparative research on selective adsorption of Pb(II) by biosorbents prepared by two kinds of modifying waste biomass: Highly-efficient performance, application and mechanism".JOURNAL OF ENVIRONMENTAL MANAGEMENT 288(2021):8. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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