Eco-utilization of silicon-rich lye: Synthesis of amorphous calcium silicate hydrate and its application for recovering heavy metals
文献类型：期刊论文
| 作者 | Qi, Fang1; Zhu, Ganyu2; Zhang, Yimin1; Hou, Xinjuan2,3; Li, Shaopeng2; Yang, Chennian2; Zhang, Jianbo2; Li, Huiquan2,3 |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 282页码:12 |
| 关键词 | Silicon-rich lye Causticization Calcium silicate hydrate Heavy metals Recovery |
| ISSN号 | 1383-5866 |
| DOI | 10.1016/j.seppur.2021.120092 |
| 英文摘要 | During sustainable high-value utilization of coal-based solid wastes, a kind of characteristic silicon-rich lye (SRL) generated, and its comprehensive recovery and recycling remains an important subject. Through a simple and facile strategy of mild caustic-crystallization method, SRL was favorably utilized through calcium silicate hydrate (C-S-H) synthesis with silicon conversion efficiency over 97.33%. The micro-morphology of C-S-H presented a typical "honeybee hive " like porous structure with numerous exchangeable activity cations and combination sites in the silicate chain structure. The amorphous C-S-H products possessed marvelous recovery abilities for typical heavy metals as Cu (II), Zn (II), and Cr (III) in industrial wastewater with recovery efficiency all above 99.6% in quite a short period. The recovery mechanism of C-S-H toward heavy metals was revealed as calcium ions exchange and interlayer structure combination with SiO4 and AlO4 tetrahedron through the analysis of characterization technologies and DFT simulation calculation. C-S-H synthesized in SRL contributes to achieving valuable resources conversion and recycling for guiding sustainable development of coal-based solid waste comprehensive utilization. |
| WOS关键词 | C-S-H ; AQUEOUS-SOLUTION ; FLY-ASH ; RED MUD ; DESILICATION ; ALUMINUM ; ACTIVATION ; ADSORPTION ; EXTRACTION ; COMPOSITE |
| 资助项目 | Projects of National Natural Science Foundation of China[U1810205] ; Projects of National Natural Science Foundation of China[51804293] ; Key Research and Development Program of Shandong Province (Major Sci-ence and Technology Innovation Project)[2019JZZY010504] ; Youth Innovation Promotion Association CAS[2018066] ; Chinese Academy of Science |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000780442000002 |
| 出版者 | ELSEVIER |
| 资助机构 | Projects of National Natural Science Foundation of China ; Key Research and Development Program of Shandong Province (Major Sci-ence and Technology Innovation Project) ; Youth Innovation Promotion Association CAS ; Chinese Academy of Science |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/52727]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhu, Ganyu; Zhang, Yimin |
| 作者单位 | 1.Wuhan Univ Sci & Technol, Coll Resources & Environm Engn, State Environm Protect Key Lab Mineral Met Resour, Wuhan 430081, Hubei, Peoples R China 2.Chinese Acad Sci, Natl Engn Res Ctr Green Recycling Strateg Met Res, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qi, Fang,Zhu, Ganyu,Zhang, Yimin,et al. Eco-utilization of silicon-rich lye: Synthesis of amorphous calcium silicate hydrate and its application for recovering heavy metals[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,282:12. |
| APA | Qi, Fang.,Zhu, Ganyu.,Zhang, Yimin.,Hou, Xinjuan.,Li, Shaopeng.,...&Li, Huiquan.(2022).Eco-utilization of silicon-rich lye: Synthesis of amorphous calcium silicate hydrate and its application for recovering heavy metals.SEPARATION AND PURIFICATION TECHNOLOGY,282,12. |
| MLA | Qi, Fang,et al."Eco-utilization of silicon-rich lye: Synthesis of amorphous calcium silicate hydrate and its application for recovering heavy metals".SEPARATION AND PURIFICATION TECHNOLOGY 282(2022):12. |
入库方式： OAI收割
来源：过程工程研究所
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