Effective removal of Pb2+ and Cd2+ from wastewater by mesoporous tobermorite synthesized from alumina-extracted fly ash
文献类型：期刊论文
| 作者 | Wang, Zehua2; Huang, Zhongliang2; Zheng, Shili3; Wu, Daishe2; Cai, Weiquan1,4 |
| 刊名 | DESALINATION AND WATER TREATMENT
 |
| 出版日期 | 2021-09-01 |
| 卷号 | 235页码:209-220 |
| ISSN号 | 1944-3994 |
| 关键词 | Fly ash Tobermorite Adsorption Heavy metal Pb2+ Cd2+ |
| DOI | 10.5004/dwt.2021.27639 |
| 英文摘要 | In this study, for the first time, the effective removal of Pb2+ and Cd2+ from wastewater by mesoporous tobermorite synthesized from alumina-extracted fly ash (AEFA) was reported. The results of characterization of the synthesized tobermorite indicated that it showed mesoporous structure, with a high specific surface area of 68.4 m(2) g(-1). The tobermorite particles were aggregates of plate-like particles resulting in slit-shaped pores. The mesoporous tobermorite showed high removal efficiency for Pb2+ and Cd2+ of 99.97% and 78.64%, respectively, and the adsorption kinetic data for Pb2+ and Cd2+ on tobermorite were better fitted to the pseudo-second-order kinetic model. The Pb2+ and Cd2+ adsorption isotherms were better described by the Langmuir isotherm model, and the maximum adsorption capacities of the tobermorite towards Pb2+ and Cd2+ were 338.98 and 105.37 mg g(-1), respectively. The high adsorption capacities of the tobermorite towards Pb2+ and Cd2+ were due to its high specific surface area, the ion exchange of Ca2+ with Pb2+ and Cd2+, and the precipitation. This study shows the mesoporous tobermorite synthesized from AEFA as a low-cost and effective adsorbent for Pb2+ and Cd2+ and broadens the potential application of AEFA in wastewater treatment. |
| WOS关键词 | HEAVY-METAL IONS ; AQUEOUS-SOLUTION ; HUMIC-ACID ; COMPETITIVE ADSORPTION ; EFFICIENT REMOVAL ; ACTIVATED CARBON ; LEAD(II) IONS ; PB(II) ; CD(II) ; CU(II) |
| 资助项目 | National Natural Science Foundation of China[52004128] ; National Natural Science Foundation of China[51774261] ; Project of Reinforcing School with Innovation of the Department of Education of Guangdong Province[2018KZDXM051] |
| WOS研究方向 | Engineering ; Water Resources |
| 语种 | 英语 |
| 出版者 | DESALINATION PUBL |
| WOS记录号 | WOS:000716100700015 |
| 资助机构 | National Natural Science Foundation of China ; Project of Reinforcing School with Innovation of the Department of Education of Guangdong Province |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/50960]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wu, Daishe; Cai, Weiquan |
| 作者单位 | 1.Guangzhou Univ, Sch Chem & Chem Engn, Guangzhou 510006, Peoples R China 2.Nanchang Univ, Sch Resources Environm & Chem Engn, Key Lab Poyang Lake Environm & Resource Utilizat, Minist Educ, Nanchang 330031, Jiangxi, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 4.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zehua,Huang, Zhongliang,Zheng, Shili,et al. Effective removal of Pb2+ and Cd2+ from wastewater by mesoporous tobermorite synthesized from alumina-extracted fly ash[J]. DESALINATION AND WATER TREATMENT,2021,235:209-220. |
| APA | Wang, Zehua,Huang, Zhongliang,Zheng, Shili,Wu, Daishe,&Cai, Weiquan.(2021).Effective removal of Pb2+ and Cd2+ from wastewater by mesoporous tobermorite synthesized from alumina-extracted fly ash.DESALINATION AND WATER TREATMENT,235,209-220. |
| MLA | Wang, Zehua,et al."Effective removal of Pb2+ and Cd2+ from wastewater by mesoporous tobermorite synthesized from alumina-extracted fly ash".DESALINATION AND WATER TREATMENT 235(2021):209-220. |
入库方式： OAI收割
来源：过程工程研究所
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