Rodrigo Vieira | IES Management Collge and Research Centre (original) (raw)

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Papers by Rodrigo Vieira

Research paper thumbnail of A Bayesian network approach to searching Web databases through keyword-based queries

Information Processing and Management, 2004

Research paper thumbnail of Searching web databases by structuring keyword-based queries

Research paper thumbnail of Interaction of natural and crosslinked chitosan membranes with Hg(II) ions

Colloids and Surfaces A-physicochemical and Engineering Aspects, 2006

Fundamental investigation on adsorption and desorption of Hg(II) ions on chitosan membranes was p... more Fundamental investigation on adsorption and desorption of Hg(II) ions on chitosan membranes was performed. Batch experiments were used to study how these phenomena are affected by pH, concentration of Hg(II) ions, crosslinking agent (glutaraldehyde or epichlorohydrin) and desorbent solution. The adsorption depended on pH and speciation of mercury. Maximum capacity was reached near zero-charge-pH, the pHZPC. The amount of adsorbed

Research paper thumbnail of Dynamic and static adsorption and desorption of Hg(II) ions on chitosan membranes and spheres

Research paper thumbnail of Mercury Ion Recovery Using Natural and Crosslinked Chitosan Membranes

Adsorption-journal of The International Adsorption Society, 2005

Page 1. Adsorption 11: 731–736, 2005 cс 2005 Springer Science + Business Media, Inc. Manufactured... more Page 1. Adsorption 11: 731–736, 2005 cс 2005 Springer Science + Business Media, Inc. Manufactured in The Netherlands. Mercury Ion Recovery Using Natural and Crosslinked Chitosan Membranes RODRIGO S. VIEIRA AND MARISA M. BEPPU ∗ ...

Research paper thumbnail of A Bayesian network approach to searching Web databases through keyword-based queries

Information Processing and Management, 2004

Research paper thumbnail of Searching web databases by structuring keyword-based queries

Research paper thumbnail of Interaction of natural and crosslinked chitosan membranes with Hg(II) ions

Colloids and Surfaces A-physicochemical and Engineering Aspects, 2006

Fundamental investigation on adsorption and desorption of Hg(II) ions on chitosan membranes was p... more Fundamental investigation on adsorption and desorption of Hg(II) ions on chitosan membranes was performed. Batch experiments were used to study how these phenomena are affected by pH, concentration of Hg(II) ions, crosslinking agent (glutaraldehyde or epichlorohydrin) and desorbent solution. The adsorption depended on pH and speciation of mercury. Maximum capacity was reached near zero-charge-pH, the pHZPC. The amount of adsorbed

Research paper thumbnail of Dynamic and static adsorption and desorption of Hg(II) ions on chitosan membranes and spheres

Research paper thumbnail of Mercury Ion Recovery Using Natural and Crosslinked Chitosan Membranes

Adsorption-journal of The International Adsorption Society, 2005

Page 1. Adsorption 11: 731–736, 2005 cс 2005 Springer Science + Business Media, Inc. Manufactured... more Page 1. Adsorption 11: 731–736, 2005 cс 2005 Springer Science + Business Media, Inc. Manufactured in The Netherlands. Mercury Ion Recovery Using Natural and Crosslinked Chitosan Membranes RODRIGO S. VIEIRA AND MARISA M. BEPPU ∗ ...

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