Bovornlak OonkhanondMichael E. MullinsMahidol UniversityMichigan Technological University2018-06-212018-06-212005-04-01Journal of Colloid and Interface Science. Vol.284, No.1 (2005), 210-215002197972-s2.0-14744303363https://repository.li.mahidol.ac.th/handle/20.500.14594/16419Zeolite particles formed from an aluminosilicate solution possess a negative surface charge due to the substitution of aluminum atoms into a SiO4tetrahedral structure making it difficult to form a continuous layer in solution. The particle interactions with surfaces and each other can be studied using the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory. The interaction energy between zeolite-zeolite and zeolite-substrate on various materials can be estimated in this fashion. The zeolite LTA particles show a stronger repulsion interaction on all substrates and on the each other as compared to the ZSM-5 particles. This repulsive energy also increases as the particles size increases. This results in the formation of conglomerate in the solution rather than forming an adhered layer on the substrate. © 2004 Elsevier Inc. All rights reserved.Mahidol UniversityChemical EngineeringChemistryPhysics and AstronomyArticleSCOPUS10.1016/j.jcis.2004.08.170