Pillaring phyllosilicates and comparison with 2:1 HI isolated from soil

• Grant number: 08/08257-2
• Support Opportunities: Regular Research Grants
• Start date: December 01, 2008
• End date: November 30, 2011
• Field of knowledge: Agronomical Sciences - Agronomy - Soil Science
• Principal Investigator: Antonio Carlos de Azevedo
• Grantee: Antonio Carlos de Azevedo
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

The project aims to apply the knowledge about the clay pillaring process to sinthesize Hydroxy interlayered 2:1 (HI2:1), usually found in small amount in tropical soils. These minerals show variable intercalation degree (ID), and the reasons for that are not yet well known.Phyllosilicates 2:1 HI will be sinthesized in controled conditions using standards from the Clay and Clay Minerals Society Repository, a montmorillonite (octahedral substitution) and a beidellite (tetrahedral substitution). Measurements on the mineral peaks in the X-ray diffractogram will allow to learn about some of the factors influencing the ID and the resistance of the hydroxy polimers to extraction, such as the "locus" of isomorphous substitution (octahedral vs tetrahedral) (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SARTOR, LUCAS RESMINI; DE AZEVEDO, ANTONIO CARLOS; PUGLIESE ANDRADE, GABRIEL RAMATIS. Study of colloidal properties of natural and Al-pillared smectite and removal of copper ions from an aqueous solution. ENVIRONMENTAL TECHNOLOGY, v. 36, n. 6, p. 786-795, MAR 19 2015. (12/19270-5, 08/08257-2)