geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Surface modification of mechanochemically activated kaolinites by selective leaching


, : Surface modification of mechanochemically activated kaolinites by selective leaching. Journal of Colloid and Interface Science 294(2): 362-370

Low- and high-defect kaolinites mechanochemically activated for different periods of time have been treated with sulfuric acid solution. These modified materials were analyzed using a combination of X-ray diffraction, thermogravimetry, chemical analysis, diffuse reflectance Fourier transform infrared spectroscopy, as well as specific surface area and pore size distribution measurements. In addition to the mechanochemically amorphized part, the disordered and the adequately distorted phases also reacted with sulfuric acid. The specific surface areas of the leached samples of the partially or the completely amorphized materials were found to be greater than those of the thermally amorphized ones. The acid treatment results in a greater total pore volume for the partially amorphized materials than for the totally amorphized mineral. The partially amorphized high-defect kaolinite was proved to be more soluble than the low-defect kaolinite under similar conditions.

US$19.90

PMID: 16111689

DOI: 10.1016/j.jcis.2005.07.033


Other references

Schwartz, R.H.; Rodriguez, W.J.; Khan, W.N., 1982: Otitis media secondary to ampicillin-resistant Hemophilus influenzae. An update. Annals of Otology, Rhinology, and Laryngology 91(3 Pt 1): 328-329

Stessel, G.J.; Zuckerman, B.M., 1953: The perithecial stage of Chalara quercina in nature. Fertile perithecia of C. quercina were found embedded in subcortical mats that had developed on the surface of the sapwood and inner surface of the bark. The perithecial structures are described and laboratory experiments to determine the sexual c...

Koch, S.L., 2011: The use of tendon grafts in injuries of the flexor tendons of the hand. Southern Surgeon 13(7): 449-452

Mohamed, I.E.; Elowni, O.A.O.; Mohamed, G.E., 1998: Factors affecting composition of mastitic milk of Friesian cattle in Sudan. The composition of mastitic cows milk had a highly significant decrease in total solids, caseins, lactose, casein number and fat%, while ash chloride, total proteins and Koslter's value increased. The difference between maximum, minimum mean...

Anonymous, 1975: Polands participation in the activities of the International Union of Food Science and Technology. Przemysl spozywczy: 9 (4) 168-170

Grasso, E.; Guastella, T., 2013: Giant submucosal lipoma cause colo-colonic intussusception. A case report and review of literature. Lipoma of the large intestine is rare, with a reported incidence ranging between 0.2% and 4.4%. We present a case of a giant colonic lipoma causing descending-colonic intussusception. A 54-year-old woman visited our emergency room with sudden onse...

Norgrove, L.; Hauser, S., 1999: Effects of tree density and crop management upon earthworm cast production in a young timber plantation after introducing under-storey crops. The effects of two timber stand densities and four low-input crop management systems upon surface cast production by earthworms were assessed in a six year old Terminalia ivorensis timber plantation in Cameroon. Cast production was also monitored...

Beladi, I.; Mandi, Y.; Regely, K.; Garssadi, S.I., 1996: In vitro decrease of natural killer activity of chicken granulocytes against adenovirus infected target. Acta Microbiologica et Immunologica Hungarica 43(2-3): 214

Wu, Y., 2015: Minute of congress of subspecialty group of clinical pharmacology, the Society of Pediatrics, Chinese Medical Association and symposium of off-label drug use in children. Zhonghua Er Ke Za Zhi 52(9): 719-720

Jan, A.; Maruyama, K.; Todaka, D.; Kidokoro, S.; Abo, M.; Yoshimura, E.; Shinozaki, K.; Nakashima, K.; Yamaguchi-Shinozaki, K., 2013: OsTZF1, a CCCH-tandem zinc finger protein, confers delayed senescence and stress tolerance in rice by regulating stress-related genes. <I>OsTZF1</I> is a member of the CCCH-type zinc finger gene family in rice (<I>Oryza sativa</I>). Expression of <I>OsTZF1</I> was induced by drought, high-salt stress, and hydrogen peroxide. <I>OsTZF1</...