Core-shell microstructure simultaneous solidification mechanism of Cr(III), Mn(IV), Ni(II) and Pb(II) in glass-ceramics
文献类型：期刊论文
| 作者 | Song, Wenfeng2,4; Zhu, Zewen1; Cao, Jianwei2,3; Wang, Zhi2; Lu, Jinshan4; Qian, Guoyu2 |
| 刊名 | Journal of Non-Crystalline Solids
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 563 |
| ISSN号 | 223093 |
| 关键词 | Manganese compounds - Glass ceramics - Lead compounds - Heavy metals - Metal ions - Sodium compounds - Silicate minerals - Chromium compounds - Nickel compounds - Solidification - Microstructure |
| DOI | 10.1016/j.jnoncrysol.2021.120809 |
| 英文摘要 | Glass-ceramics with crystal-coated glass phase microstructure were designed and prepared using the method of base-glass surface crystallization to simultaneously solidify multiple heavy metal ions (Cr3+, Ni2+, Mn4+ and Pb2+). Cr2O3 and PbO had opposite effects on the surface crystallization of the base glass, promoting and inhibiting it, respectively, when their concentrations were increased from 0.1 to 0.9 wt.%. This then affected their resistance to leaching of heavy metal. When the mass ratio of Na2O/SiO2 was increased from 0.08 to 0.20, the effect of PbO on inhibiting surface crystallization was weakened. The distribution of Cr3+, Ni2+, Mn4+ was inhomogeneous, and the concentrations of the ions were the highest at the glass phase-crystal interface and lowest in the wollastonite (CaSiO3) crystals. However, the concentration of Pb2+ at the interface decreased and the content of Pb2+ in the crystal gradually increased. The leaching test results showed that the leached concentrations of Cr3+, Mn4+, Ni2+, Pb2+ are all on the order of 10鈭? mg/L. 漏 2021 |
| 学科主题 | Leaching |
| 项目编号 | This work was financially supported by the National Natural Science Foundations of China (grant numbers: 52070181 and 51934006). |
| 出版者 | Elsevier B.V. |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/60351]  |
| 作者单位 | 1.School of Materials Science and Technology, China University of Geosciences, Beijing; 100083, China 2.CAS Key Laboratory of Green Process and Engineering, Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 3.ZhongkeLangfang Institute of Process Engineering, Fenghua Road No 1, Langfang, Economic &Technical Development Zone, Hebei Province, China 4.School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang; 330063, China |
| 推荐引用方式 GB/T 7714 | Song, Wenfeng,Zhu, Zewen,Cao, Jianwei,et al. Core-shell microstructure simultaneous solidification mechanism of Cr(III), Mn(IV), Ni(II) and Pb(II) in glass-ceramics[J]. Journal of Non-Crystalline Solids,2021,563. |
| APA | Song, Wenfeng,Zhu, Zewen,Cao, Jianwei,Wang, Zhi,Lu, Jinshan,&Qian, Guoyu.(2021).Core-shell microstructure simultaneous solidification mechanism of Cr(III), Mn(IV), Ni(II) and Pb(II) in glass-ceramics.Journal of Non-Crystalline Solids,563. |
| MLA | Song, Wenfeng,et al."Core-shell microstructure simultaneous solidification mechanism of Cr(III), Mn(IV), Ni(II) and Pb(II) in glass-ceramics".Journal of Non-Crystalline Solids 563(2021). |
入库方式： OAI收割
来源：过程工程研究所
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