Yan, Yao1,2,3; Fang, Yanan4; Verma, Vivek4; Li, Jun1,2,3; Wang, Yong4; Yang, Yongqiang1,2; Chen, Fanrong1,2; Zhu, Runliang1,2; Wu, Shijun1,2; Hooper, Thomas J.N.4; White, Tim4
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
DOI10.1016/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
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
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
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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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