Structure evolution of brick-red palygorskite induced by hydroxylammonium chloride | |
Department | 甘肃省黏土矿物应用重点实验室 |
Zhang ZF(张志芳)1,2; Wang WB(王文波)1,3; Kang YR(康玉茹)1,3; Wang Q(汪琴)1,3; Wang AQ(王爱勤)1,3; Wang WB(王文波); Wang AQ(王爱勤) | |
The second department | 环境材料与生态化学研究发展中心 |
2018 | |
Source Publication | Powder Technology |
ISSN | 0032-5910 |
Volume | 327Pages:246-254 |
Abstract | Brick-red clay mineral with palygorskite (PAL) as the main ingredient has huge reserves in the nature, but the congenital brick-red color limits its applications in industrial fields. In light of the prospective application value of such mineral, researchers have been looking for a feasible way to turn it into white one. Herein, a simple one-step reaction process in the presence of hydroxylammonium chloride (HAC) was developed and used to turn brick-red PAL into white one. The change of textural structure and physicochemical features of the brick-red PAL was investigated. It was shown that the brick-red PAL was converted to white after the reaction in 5 mol/L of aqueous solution of HAC at 80 °C. The rod-like crystal morphology of PAL still remain well after the reaction, and the associated minerals such as quartz, feldspar and muscovite did not change obviously. The dissolution of associated hematite (α-Fe2O3) and the leaching of Fe(III) and Fe(II) in acidic and reductive HAC solution mainly contributed to the whitening of brick-red PAL, as confirmed by Mössbauer spectroscopy. This research would lay a theoretical basis for extending the industrial application of naturally abundant brick-red clay minerals. |
Keyword | Palygorskite Hydroxylammonium Chloride Whitening Mechanism Structure |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.powtec.2017.12.067 |
Funding Organization | the Key Research & Development Project of Gansu Provincial Sci. & Tech. Department, China (17YF1WA167);the fifth “333 project” of Jiangsu Province, China (BRA2016244);Youth Innovation Promotion Association CAS (2016370);the STS Regional Key Projects of Chinese Academy of Sciences, China (KeFaCuHan Word [2017] 70) |
Indexed By | SCI |
If | 3.230 |
Language | 英语 |
Funding Project | 功能复合材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22833 |
Collection | 甘肃省黏土矿物应用研究重点实验室 环境材料与生态化学研究发展中心 |
Corresponding Author | Wang WB(王文波); Wang AQ(王爱勤) |
Affiliation | 1.Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China 2.University of the Chinese Academy of Sciences, Beijing 100049, PR China 3.Center of Xuyi Palygorskite Applied Technology, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Xuyi 211700, PR China |
Recommended Citation GB/T 7714 | Zhang ZF,Wang WB,Kang YR,et al. Structure evolution of brick-red palygorskite induced by hydroxylammonium chloride[J]. Powder Technology,2018,327:246-254. |
APA | Zhang ZF.,Wang WB.,Kang YR.,Wang Q.,Wang AQ.,...&王爱勤.(2018).Structure evolution of brick-red palygorskite induced by hydroxylammonium chloride.Powder Technology,327,246-254. |
MLA | Zhang ZF,et al."Structure evolution of brick-red palygorskite induced by hydroxylammonium chloride".Powder Technology 327(2018):246-254. |
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