Knowledge Management System Of Guangzhou Institute of Geochemistry,CAS
Yan, Yao1,2,3; Fang, Yanan4; Verma, Vivek4; Li, Jun1,2,3![]() ![]() ![]() ![]() ![]() | |
Phase evolution and arsenic immobilization of arsenate-bearing amorphous calcium phosphate | |
刊名 | JOURNAL OF HAZARDOUS MATERIALS |
ISSN号 | 0304-3894 |
2023 | |
卷号 | 448页码:130973 |
DOI | 10.1016/j.jhazmat.2023.130973 |
语种 | 英语 |
WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
摘要 | The formation of As(V) substituted hydroxylapatite (HAP) has a vital influence on the fate of As(V) in the environment. However, despite growing evidence showing that HAP crystallizes in vivo and in vitro with amorphous calcium phosphate (ACP) as a precursor, a knowledge gap exists concerning the transformation from arsenate-bearing ACP (AsACP) to arsenate-bearing HAP (AsHAP). Here we synthesized AsACP nano-particles with varied As contents and investigated the arsenic incorporation during their phase evolution. The phase evolution results showed that the transformation process of AsACP to AsHAP could be divided into three Stages. A higher As(V) loading significantly delayed the transformation of AsACP, increased the distortion degree, and decreased the crystallinity of AsHAP. NMR result showed that the PO43- tetrahedral is geometrically preserved when PO43- is substituted by AsO43-. From AsACP to AsHAP, the As-substitution led to the transformation inhibition and As(V) immobilization. ? 2023 Elsevier B.V. |
关键词 | SOLID-STATE NMR HYDROXYAPATITE SUBSTITUTION APATITE CRYSTALLIZATION MODEL RAMAN |
WOS记录号 | WOS:000942633100001 |
收录类别 | SCI |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.gig.ac.cn/handle/344008/80189 |
专题 | 中国科学院矿物学与成矿学重点实验室 |
作者单位 | 1.CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, Guangzhou; 510640, China 2.CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, Guangzhou; 510640, China 3.University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing; 100049, China 4.School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore |
推荐引用方式 GB/T 7714 | Yan, Yao,Fang, Yanan,Verma, Vivek,et al. Phase evolution and arsenic immobilization of arsenate-bearing amorphous calcium phosphate[J]. JOURNAL OF HAZARDOUS MATERIALS,2023,448:130973. |
APA | Yan, Yao.,Fang, Yanan.,Verma, Vivek.,Li, Jun.,Wang, Yong.,...&White, Tim.(2023).Phase evolution and arsenic immobilization of arsenate-bearing amorphous calcium phosphate.JOURNAL OF HAZARDOUS MATERIALS,448,130973. |
MLA | Yan, Yao,et al."Phase evolution and arsenic immobilization of arsenate-bearing amorphous calcium phosphate".JOURNAL OF HAZARDOUS MATERIALS 448(2023):130973. |
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