CAS OpenIR
Influence of preparation methods on textural properties of purified bentonite
Shah, Liaqat Ali1,2; da Silva Valenzuela, Maria das Graca3; Farooq, Muhammad4; Khattak, Shaukat Ali5; Valenzuela Diaz, Francisco Rolando3
2018-09-15
Source PublicationAPPLIED CLAY SCIENCE
ISSN0169-1317
Volume162Pages:155-164
Abstract

The aim of this work was to study the effect of three different purification methods, using chemical solution of (Na(PO3))(6) (method-I), NaCl (method-II) and Na2CO3 (method-III), followed by stokes law of sedimentation, on the textural properties of a Pakistani bentonite, containing > 70% Ca2+-montmorillonite. The raw and the purified samples were examined through X-ray Diffraction (XRD), N-2 adsorption-desorption, and laser diffraction method (LDM). The quartz contents were found absent in all the purified samples. It was confirmed that the sample obtained by the method-I and other two methods resulted in to be,typically, Ca2+-bentonite and Na+-bentonite, respectively. In comparison with the raw sample, higher percentage volume of fine particles was detected in purified samples. The fine particles, however, exhibited significant enhancement in the samples purified by method-II and method-III. Higher pore volume and specific surface area were noticed for samples purified by the trio methods in comparison with the raw sample. Specific surface area of the sample obtained by the method-III was much higher than that of the other purified samples. Mesopores volume was increased significantly by purification, especially by the method-I and III. Considerably higher value of micropores volume/area and mesopores volume/area were detected for sample purified by method-III than for the samples purified by the other methods. A highly porous sample with the excellent surface area and small particle size was obtained by purification method-III which can be used as a good adsorbent, catalyst and catalyst support.

KeywordBentonite Soda Activation Purification Microporosity Mesoporosity Montmorillonite
DOI10.1016/j.clay.2018.06.001
Language英语
WOS KeywordPore-size Distribution ; Non-clay Minerals ; Surface-area ; Activated Bentonite ; Porosity Evolution ; Swelling Clays ; Water-vapor ; Homoionic Montmorillonite ; Exchanged Cation ; Carbon-dioxide
WOS Research AreaChemistry ; Materials Science ; Mineralogy
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Mineralogy
WOS IDWOS:000440775900017
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/25752
Collection中国科学院过程工程研究所
Corresponding AuthorShah, Liaqat Ali
Affiliation1.Univ Peshawar, Dept Phys, Peshawar, Khyber Pakhtunk, Pakistan
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China
3.Univ Sao Paulo, Polytech Sch, BR-05508900 Sao Paulo, SP, Brazil
4.Univ Peshawar, Natl Ctr Excellence Phys Chem, Peshawar, Pakistan
5.Abdul Wali Khan Univ Mardan, Dept Phys, Mordan 23200, Pakistan
Recommended Citation
GB/T 7714
Shah, Liaqat Ali,da Silva Valenzuela, Maria das Graca,Farooq, Muhammad,et al. Influence of preparation methods on textural properties of purified bentonite[J]. APPLIED CLAY SCIENCE,2018,162:155-164.
APA Shah, Liaqat Ali,da Silva Valenzuela, Maria das Graca,Farooq, Muhammad,Khattak, Shaukat Ali,&Valenzuela Diaz, Francisco Rolando.(2018).Influence of preparation methods on textural properties of purified bentonite.APPLIED CLAY SCIENCE,162,155-164.
MLA Shah, Liaqat Ali,et al."Influence of preparation methods on textural properties of purified bentonite".APPLIED CLAY SCIENCE 162(2018):155-164.
Files in This Item:
File Name/Size DocType Version Access License
Influence of prepara(641KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Shah, Liaqat Ali]'s Articles
[da Silva Valenzuela, Maria das Graca]'s Articles
[Farooq, Muhammad]'s Articles
Baidu academic
Similar articles in Baidu academic
[Shah, Liaqat Ali]'s Articles
[da Silva Valenzuela, Maria das Graca]'s Articles
[Farooq, Muhammad]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Shah, Liaqat Ali]'s Articles
[da Silva Valenzuela, Maria das Graca]'s Articles
[Farooq, Muhammad]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.