Finding nanotubular halloysite at Lang Dong kaolin deposit, Phu Tho province

Bui Hoang Bac, Nguyen Tien Dung

Abstract


Halloysite obtained from Lang Dong kaolin deposit, Phu Tho province was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). XRD analysis showed that halloysite (10 Ǻ and 7Ǻ basal spacing) and kaolinite coexist in sample of size fractions <2 mm. SEM and TEM analyses showed that the halloysite has hollow nanotube structures with typical outer diameter of 0.08÷0.30 mm and length of 0.60÷6.00 mm. The mean outer diameter and length are 0.17 and 2.48 mm, respectively. Semi-quantitative analysis using scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDS) showed that the sample consists mainly of Al2O3 and SiO2. Result of formamide (FA) treatment showed that under size fraction <2 mm 50 wt% of the sample was taken by halloysite. The study elucidates the characteristics of mineral components, allowing for more efficient use of this resource.

References

Berthier, P., 1986: Analyse de I’halloysite. Annales de Chimie et de Physique 32, 332-335.

Chipera, S.J., & Bish, D.L., 2002: FULLPAT: a full pattern quantitative analysis program for X-ray powder diffraction using measured and calculated patterns. Journal of Applied Crystallopgraphy 35 (2002) 744-749.

Churchman, G.J., 2000: The alteration and formation of soil minerals by weathering. F3-F76 in: Handbook of Soil Science (M.E. Sunner, editor). CRC Press, Boca Ration, Florida.

Churchman, G.J., Carr, R.M., 1972: Stability fields of hydration states of a halloysite. American Mineralogist 57, 914-923.

Churchman, G.J., Carr, R.M., 1975: The definition and nomenclature of halloysites. Clays and Clay minerals 23, 382-388.

Churchman, G.J. and Theng, B.K.G., 1984: Interactions of halloysites with amides: mineralogical factors affect-ing complex formation. Clay Minerals 19, 161-175.

Deepak, R., & Agrawal, Y.K., 2012: Multifarious applications of halloysite nanotubes: A review. Reviews on Advanced Materials Science 30, 282-295.

Ghanbari, M., Emadzadeh, D., Lau, W.J., Matsuura, T., Ismail, A.F., 2015: Synthesis and characterization of novel thin film nanocomposite reverse osmosis membranes with improved organic fouling properties for water desalination. RSC Advances 5, 21268-21276.

Hillier, S., Ryan, P.C., 2002: Identification of halloysite (7Ǻ) by ethylene glycol solvation: the ‘MacEwan effect’. Clay minerals 37, 487-496.

Joussein, E., Kruytz, N., Righi, D., Petit, S., Delvaux, B., 2004:
Specific retention of radiocesium in volcanic ash soils devoid of micaceous clay minerals. Soil Science Society of America Journal 68, 313-319.

Kohymna, N., Fukushima, K. and Fukami, A., 1978: Observation of the hydrated form of tubular halloysite by an electron microscope equipped with an environmental cell. Clays and Clay Minerals 26, 25-40.

Mineralogy database: http://webmineral.com/data/Halloysite.shtml#.VmqAFtJ97RZ .

Mingliang, D., Baochun, G., Demin, J., 2010: Newly emerging applications of halloysite nanotubes: A review. Polymer International 59, 574-582.

Nicolini, K.P., Fukamachi, C.R.B., Wypych, F., and Salvio M.A.S., 2009: Dehydrated halloysite intercalated mechanochemically with urea: Thermal behavior and structural aspects. Journal of Colloid and Interface Science 338, 474-479.

Nguyen, T.D., & Nguyen, P., 2006: Geological characteristics and quality of kaolin, feldspar in Thach Khoan area, Thanh Son, Phu Tho. Journal of Mining & Geology Science and Technology 15(7) 65-70 (in Vietnamese).

Poppe, L.J., Paskevich, V.F., Hathaway, J.C., and Blackwood, D.S., 2001: A laboratory manual for X-ray powder diffraction. U.S. Geological Survey Open-File Report 01-041, pp. 88.

Ravindra, K., Manasi, G., Sheetal, G., Bijoy, K.P., 2012: Halloysite nanotubes and applications: A review. Journal of advanced scientific research 3(2) 25-29.

Sunaree, B., Darunee, B., Thongchai, P., Tripob, B., 2011: Characterization ò halloysite from Thung Yai District, Nakhon Si Thammarat Province, in southern Thailand. Songklanakarin Journal of Science and Technology 33(5), 559-607.

Wada, S.I., & Mizota, C., 1982: Iron-rich halloysite (10Ǻ) with crumpled lamellar morphology from Hokkaodo, Japan. Clays and Clay minerals 30, 315-317.

Yariv, S. and Shoval, S., 1976: Interaction between alkali-halides and halloysite: I.R. study of the interaction between alkali-halides and hydrated halloysite. Clays and Clay Minerals 24, 253-561.

 


Full Text:

PDF


DOI: https://doi.org/10.15625/0866-7187/37/4/8058 Display counter: Abstract : 97 views. PDF : 83 views.

Refbacks

  • There are currently no refbacks.


Vietnam Journal of Earth Sciences, ISSN: 0866 - 7187

Contact address:

tcckhvtd@vjs.ac.vn; vjesmail@gmail.com; phantrongt@yahoo.com

Index: Google ScholarNRSJ (Norway)CrossrefGeoRef (American Geosciences Institute)VCGScilit (Switzerland)Copernicus InternationalAsean Citation IndexCiteFactor

© Vietnam Academy of Science and Technology (VAST)