Microstructure of Montmorillonite and Its Acid Treatment Products

Journal of Inorganic Materials

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Microstructure of Montmorillonite and Its Acid Treatment Products

WU Ping-Xiao¹; ZHANG Hui-Fen²; GUO Jiu-Gao²; HU Cheng³; LIU Xiao-Yong³

1. South China Agricultural University; Guangzhou 510642; China; 2. Guangzhou Institute of Geochemistry; Guangzhou 510640; 3. State Key Laboratory of Solid Microstructure Physics Nangling University, Nanjing 210093, China

Received:1998-11-23 Revised:1998-12-28 Published:1999-12-20 Online:1999-12-20

Abstract

Abstract: The montmorillonite in Heping, Guangdong province was studied by chemical analysis,XRD, IR, EPR, AFM and MAS NMR. It was found that acid treatmellt is influential on the surface of montmorillonite. When the concentration of acid reaches 20%, some Q³ Si structure in montmorillonite is transformed to distortional Q³ Si structure and Q⁴ Si structure, and there is no any change about Al structure state in montmorillonite, that is in line with the observational result of atomic force microscope very well.

Key words: montmorillonite, acid treatment, MAS NMR, AFM

CLC Number:

TQ174

WU Ping-Xiao,ZHANG Hui-Fen,GUO Jiu-Gao,HU Cheng,LIU Xiao-Yong. Microstructure of Montmorillonite and Its Acid Treatment Products[J]. Journal of Inorganic Materials.

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Microstructure of Montmorillonite and Its Acid Treatment Products

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