skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Grafting of organosilane derived from 3-glycidoxypropyltrimethoxysilane and thiourea onto magnesium phyllosilicate by sol-gel process and investigation of metal adsorption properties

Abstract

A layered inorganic-organic magnesium silicate (Mg-GTPS-TU) has been successfully synthesized by using sol-gel based precursor under mild temperature conditions and a new silylaing agent (GTPS-TU) derived from 3-glycidoxypropyltrimethoxysilane (GTPS) and thiourea (TU) as the silicon source. The hybrid material was characterized through elemental analysis, infrared spectroscopy, X-ray diffractometry, thermogravimetry, and carbon and silicon solid-state nuclear magnetic resonance spectroscopy. The result confirmed the attachment of organic functionality to the inorganic silicon network. The inter-lamellar distance for the hybrid material was found to be 18.8 A. Metal adsorption characteristics follows Cr(III) >Mn(II)>Zn(II) with more affinity towards Cr(III) in dilute aqueous solution. Evaluation of thermodynamic parameters DELTAH and DELTAS for Cr(III) were found to be 25.44 J mol{sup -1} and 79.9 J mol{sup -1} K{sup -1}, respectively, indicating adsorption process to be endothermic in nature. The negative value of DELTAG indicated the feasibility and spontaneity of ongoing adsorption process at relatively higher temperature. The presence of multiple coordination sites in the attached organic functionality expresses the potentiality of the hybrid material containing new silylating agent for heavy cation removal from eco-system. - Abstract: We report the synthesis and adsorption properties of a layered inorganic-organic magnesium silicate (Mg-GTPS-TU) derived from a new silylaing agentmore » from 3-glycidoxypropyltrimethoxysilane (GTPS) and thiourea (TU) as the silicon source. Display Omitted« less

Authors:
 [1]; ;  [2];  [3];  [1]
  1. Instituto de Quimica, Universidade Estadual de Campinas, Caixa Postal 6154, 13084-971 Caminas, Sao Paulo (Brazil)
  2. Department of Applied Chemistry, Birla Institute of Technology, Mesra 835 215, Ranchi (India)
  3. Department of Chemistry, Institute of Technology, Banaras Hindu University, Varanasi (India)
Publication Date:
OSTI Identifier:
21370513
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 182; Journal Issue: 8; Other Information: DOI: 10.1016/j.jssc.2009.05.011; PII: S0022-4596(09)00220-5; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION SPECTROSCOPY; ADSORPTION; AQUEOUS SOLUTIONS; CARBON; CHROMIUM COMPOUNDS; GRAFT POLYMERS; INFRARED SPECTRA; MAGNESIUM SILICATES; NMR SPECTRA; SILANES; SILICON; SOL-GEL PROCESS; SYNTHESIS; THERMAL GRAVIMETRIC ANALYSIS; THIOUREAS; X-RAY DIFFRACTION; ALKALINE EARTH METAL COMPOUNDS; CARBONIC ACID DERIVATIVES; CHEMICAL ANALYSIS; COHERENT SCATTERING; DIFFRACTION; DISPERSIONS; ELEMENTS; GRAVIMETRIC ANALYSIS; HOMOGENEOUS MIXTURES; HYDRIDES; HYDROGEN COMPOUNDS; MAGNESIUM COMPOUNDS; MIXTURES; NONMETALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; ORGANIC SILICON COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXYGEN COMPOUNDS; POLYMERS; QUANTITATIVE CHEMICAL ANALYSIS; SCATTERING; SEMIMETALS; SILICATES; SILICON COMPOUNDS; SOLUTIONS; SORPTION; SPECTRA; SPECTROSCOPY; THERMAL ANALYSIS; TRANSITION ELEMENT COMPOUNDS

Citation Formats

Dey, R.K., E-mail: rkdey@rediffmail.co, Oliveira, Andrea S, Patnaik, Tanushree, Singh, V K, Tiwary, D, and Airoldi, Claudio. Grafting of organosilane derived from 3-glycidoxypropyltrimethoxysilane and thiourea onto magnesium phyllosilicate by sol-gel process and investigation of metal adsorption properties. United States: N. p., 2009. Web. doi:10.1016/j.jssc.2009.05.011.
Dey, R.K., E-mail: rkdey@rediffmail.co, Oliveira, Andrea S, Patnaik, Tanushree, Singh, V K, Tiwary, D, & Airoldi, Claudio. Grafting of organosilane derived from 3-glycidoxypropyltrimethoxysilane and thiourea onto magnesium phyllosilicate by sol-gel process and investigation of metal adsorption properties. United States. https://doi.org/10.1016/j.jssc.2009.05.011
Dey, R.K., E-mail: rkdey@rediffmail.co, Oliveira, Andrea S, Patnaik, Tanushree, Singh, V K, Tiwary, D, and Airoldi, Claudio. 2009. "Grafting of organosilane derived from 3-glycidoxypropyltrimethoxysilane and thiourea onto magnesium phyllosilicate by sol-gel process and investigation of metal adsorption properties". United States. https://doi.org/10.1016/j.jssc.2009.05.011.
@article{osti_21370513,
title = {Grafting of organosilane derived from 3-glycidoxypropyltrimethoxysilane and thiourea onto magnesium phyllosilicate by sol-gel process and investigation of metal adsorption properties},
author = {Dey, R.K., E-mail: rkdey@rediffmail.co and Oliveira, Andrea S and Patnaik, Tanushree and Singh, V K and Tiwary, D and Airoldi, Claudio},
abstractNote = {A layered inorganic-organic magnesium silicate (Mg-GTPS-TU) has been successfully synthesized by using sol-gel based precursor under mild temperature conditions and a new silylaing agent (GTPS-TU) derived from 3-glycidoxypropyltrimethoxysilane (GTPS) and thiourea (TU) as the silicon source. The hybrid material was characterized through elemental analysis, infrared spectroscopy, X-ray diffractometry, thermogravimetry, and carbon and silicon solid-state nuclear magnetic resonance spectroscopy. The result confirmed the attachment of organic functionality to the inorganic silicon network. The inter-lamellar distance for the hybrid material was found to be 18.8 A. Metal adsorption characteristics follows Cr(III) >Mn(II)>Zn(II) with more affinity towards Cr(III) in dilute aqueous solution. Evaluation of thermodynamic parameters DELTAH and DELTAS for Cr(III) were found to be 25.44 J mol{sup -1} and 79.9 J mol{sup -1} K{sup -1}, respectively, indicating adsorption process to be endothermic in nature. The negative value of DELTAG indicated the feasibility and spontaneity of ongoing adsorption process at relatively higher temperature. The presence of multiple coordination sites in the attached organic functionality expresses the potentiality of the hybrid material containing new silylating agent for heavy cation removal from eco-system. - Abstract: We report the synthesis and adsorption properties of a layered inorganic-organic magnesium silicate (Mg-GTPS-TU) derived from a new silylaing agent from 3-glycidoxypropyltrimethoxysilane (GTPS) and thiourea (TU) as the silicon source. Display Omitted},
doi = {10.1016/j.jssc.2009.05.011},
url = {https://www.osti.gov/biblio/21370513}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 8,
volume = 182,
place = {United States},
year = {Sat Aug 15 00:00:00 EDT 2009},
month = {Sat Aug 15 00:00:00 EDT 2009}
}