Sorption mechanisms of diphenylarsinic acid on natural magnetite and siderite: Evidence from sorption kinetics, sequential extraction and extended X-ray absorption fine-structure spectroscopy analysis

doi:10.1007/s11783-022-1547-2

	Sorption mechanisms of diphenylarsinic acid on natural magnetite and siderite: Evidence from sorption kinetics, sequential extraction and extended X-ray absorption fine-structure spectroscopy analysis
	Zhu, Meng 1,3,4,5; He, Yuhuan 1; Wei, Xiaobao 1; Qi, Haoran 1; Zhang, Yunpeng 1; Zhang, Yijun 1; Yang, Ruyi 1,4,5; Luo, Yongming2,3,4
发表期刊	FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
ISSN	2095-2201
	2022-09-01
卷号	16 期号:9 页码:14
关键词	Diphenylarsinic acid (DPAA) Sorption Magnetite Siderite Sequential extraction EXAFS
DOI	10.1007/s11783-022-1547-2
通讯作者	Luo, Yongming(ymluo@yic.ac.cn)
英文摘要	Diphenylarsinic acid (DPAA) is both the prime starting material and major metabolite of chemical weapons (CWs). Because of its toxicity and the widespread distribution of abandoned CWs in burial site, DPAA sorption by natural Fe minerals is of considerable interest. Here we report the first study on DPAA sorption by natural magnetite and siderite using macroscopic sorption kinetics, sequential extraction procedure (SEP) and microscopic extended X-ray absorption fine-structure spectroscopy (EXAFS). Our results show that the sorption pseudo-equilibrated in 60 minutes and that close to 50% and 20%-30% removal can be achieved for magnetite and siderite, respectively, at the initial DPAA concentrations of 4-100 mg/L. DPAA sorption followed pseudo-secondary and intra-particle diffusion kinetics models, and the whole process was mainly governed by intra-particle diffusion and chemical bonding. SEP and EXAFS results revealed that DPAA mainly formed inner-sphere complexes on magnetite ( > 80%), while on siderite it simultaneously resulted in outer-sphere and inner-sphere complexes. EXAFS analysis further confirmed the formation of inner-sphere bidentate binuclear corner-sharing complexes (C-2) for DPAA. Comparison of these results with previous studies suggests that phenyl groups are likely to impact the sorption capacity and structure of DPAA by increasing steric hindrance or affecting the way the central arsenic (As) atom maintains charge balance. These results improve our knowledge of DPAA interactions with Fe minerals, which will help to develop remediation technology and predict the fate of DPAA in soil-water environments. (C) Higher Education Press 2022
资助机构	National Natural Science Foundation of China ; Anhui Normal University ; Project of Innovation and Entrepreneurship Training for College Students
收录类别	SCI
语种	英语
关键词[WOS]	CHEMICAL WARFARE AGENTS ; P-ARSANILIC ACID ; SURFACE COMPLEXATION ; AQUEOUS-SOLUTION ; ATR-FTIR ; INTRAPARTICLE DIFFUSION ; BEARING FERRIHYDRITE ; DIMETHYLARSINIC ACID ; ARSENIC SPECIATION ; PHENYLARSONIC ACID
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
WOS记录号	WOS:000749226200002
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/31448
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Luo, Yongming
作者单位	1.Anhui Normal Univ, Sch Ecol & Environm, Wuhu 241002, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 4.Anhui Normal Univ, Anhui Prov Engn Lab Water & Soil Pollut Control &, Wuhu 241002, Peoples R China 5.Anhui Normal Univ, Ctr Cooperat Innovat Recovery & Reconstruct Degra, Wuhu 241002, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Meng,He, Yuhuan,Wei, Xiaobao,et al. Sorption mechanisms of diphenylarsinic acid on natural magnetite and siderite: Evidence from sorption kinetics, sequential extraction and extended X-ray absorption fine-structure spectroscopy analysis[J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,2022,16(9):14.
APA	Zhu, Meng.,He, Yuhuan.,Wei, Xiaobao.,Qi, Haoran.,Zhang, Yunpeng.,...&Luo, Yongming.(2022).Sorption mechanisms of diphenylarsinic acid on natural magnetite and siderite: Evidence from sorption kinetics, sequential extraction and extended X-ray absorption fine-structure spectroscopy analysis.FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,16(9),14.
MLA	Zhu, Meng,et al."Sorption mechanisms of diphenylarsinic acid on natural magnetite and siderite: Evidence from sorption kinetics, sequential extraction and extended X-ray absorption fine-structure spectroscopy analysis".FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 16.9(2022):14.