Solvothermal evolution of red palygorskite in dimethyl sulfoxide/water | |
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; Tian GY (田光燕)1,2; Wang Q (汪琴)1,3; Wang AQ (王爱勤)1,3 | |
2018-06 | |
Source Publication | Applied Clay Science |
Volume | 159Issue:无Pages:16-24 |
Abstract | Red clay deposit with palygorskite (Pal) as the main component is abundant on the earth, but it is not yet fully utilized in industrial fields because of its deep color. In this paper, we employed a facile one-step solvothermal process to treat red Pal using water, dimethyl sulfoxide (DMSO) and DMSO/water as solvents and studied the effect of this process on the structure, physico-chemical characteristics and color of red Pal. It was revealed that the brick-red Pal still remain its color unchanged after solvothermal reaction in water or DMSO solvent, but it converted to white after reaction in dimethyl sulfoxide (DMSO)/water mixture. When the volume ratio of DMSO to water is 2:1, the product has the best whiteness of 83.3%. The associated minerals such as quartz, feldspar and muscovite did not change significantly and the rod-like crystalline morphology of Pal still remains intact after solvothermal reaction. The leaching of Fe(III) in Pal, the dissolution of α-Fe2O3 and the reduction of Fe(III) by the dimethyl sulfide (the reaction product of DMSO with water) to Fe(II) contributed to the conversion of red Pal to white one. The conversion of brick-red Pal to white would lay a foundation for the applications of deep-colored clay minerals in the fields of chemical industries and composite materials. |
Keyword | Palygorskite Whiteness Transformation Solvothermal Dimethyl Sulfoxide |
Subject Area | 无机非金属材料 ; 复合材料 |
MOST Discipline Catalogue | 工学::材料科学与工程(可授工学、理学学位) |
DOI | 10.1016/j.clay.2017.06.014 |
URL | 查看原文 |
Indexed By | SCI |
If | 3.641 |
Language | 英语 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/24252 |
Collection | 甘肃省黏土矿物应用研究重点实验室 |
Corresponding Author | Wang WB (王文波); Wang AQ (王爱勤) |
Affiliation | 1.Key Laboratory of Clay Mineral Applied Research of Gansu Province, 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 ,Tian GY ,et al. Solvothermal evolution of red palygorskite in dimethyl sulfoxide/water[J]. Applied Clay Science,2018,159(无):16-24. |
APA | Zhang ZF ,Wang WB ,Tian GY ,Wang Q ,&Wang AQ .(2018).Solvothermal evolution of red palygorskite in dimethyl sulfoxide/water.Applied Clay Science,159(无),16-24. |
MLA | Zhang ZF ,et al."Solvothermal evolution of red palygorskite in dimethyl sulfoxide/water".Applied Clay Science 159.无(2018):16-24. |
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2018 张志芳 Solvotherma(1474KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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