Immobilization of Arsenic(V) during the Transformation of Ferrihydrite: A Direct Speciation Study Using Synchrotron-based XAFS Spectroscopy

被引：10
|
作者：
Muramatsu, Chihiro [1 ]
Sakata, Masahiro [1 ]
Mitsunobu, Satoshi [1 ]
机构：
[1] Univ Shizuoka, Inst Environm Sci, Suruga Ku, Shizuoka 4228526, Japan
来源：
CHEMISTRY LETTERS | 2012年 / 41卷 / 03期
关键词：
ARSENATE; BEHAVIOR; OXIDES;
D O I：
10.1246/cl.2012.270
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In the present study, we investigated the behavior of arsenic (As) during the transformation of poorly crystalline iron(III) hydroxide, ferrihydrite. Adsorbed As on solids gradually decreased as ferrihydrite transformed to crystalline goethite and hematite. X-ray absorption fine structure (XAFS) analysis indicated that the As immobilization dominantly resulted from the incorporation of arsenate into poorly crystalline ferrihydrite under present experimental conditions.
引用
收藏
页码：270 / 271
页数：2
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