标题：Identification of chromate binding mechanisms in Friedel's salt作者：Shao, Yan; Zhou, Min; Wang, Weixing; Hou, Haobo

来源出版物：CONSTRUCTION AND BUILDING MATERIALS 卷：48 页：942-947 DOI：10.1016/j.conbuildmat.2013.07.098出版年：NOV 2013

摘要：The Friedel's salt was found to be a major hydration product of NaCl and blast furnace slag and its ability and mechanism for solidification/stabilization of Cr was investigated. The metal-fixing capacity, mineral phases and its vibration bands in matrices were characterized by toxic characteristic leaching procedure (TCLP), X-ray diffraction (XRD), scanning electron microscopy (SEM) and fourier transform infrared spectroscopy (FTIR), respectively. The Tessier's five-step sequential extraction procedure was used to analyze the chemical speciation of Cr. To study the binding mechanisms of the Friedel's salt on Cr, solid solutions between Friedel's salt and Cr-Friedel's salt were synthesized and characterized by XRD, FTIR, inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and ionic chromatography (IC). The results indicated that the Friedel's salt can incorporate Cr effectively by physical encapsulation, isomorphous substitution and adsorption.

入藏号：WOS:000327561200112

文献类型：Article

语种：English

作者关键词：Friedel's salt, Cr, Solidification/stabilization, Solid solutions, Immobilization mechanisms

扩展关键词：MSWI FLY-ASH; HEAVY-METALS; BLENDED CEMENT; IMMOBILIZATION; MATRICES;PHASES;SOLIDIFICATION/STABILIZATION;STABILIZATION/SOLIDIFICATION; LEACHABILITY; ETTRINGITE

通讯作者地址：Hou, Haobo; Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072,Peoples R China.

电子邮件地址：34318989@qq.com

地址：

[Shao, Yan; Zhou, Min; Wang, Weixing; Hou, Haobo]Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072,Peoples R China.

研究方向：Construction & Building Technology; Engineering; Materials Science

ISSN：0950-0618