A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Novel talc-like nickel phyllosilicates functionalized with ethanolamine and diethanolamine
AbstractEthanolamine (E) and diethanolamine (D) were incorporated into 3-glycidoxypropyltrimethoxysilane (G) to give two new silylating agents. These agents were used to prepare in sol–gel process talc-like compounds, corresponding to nickel phyllosilicates (Ph), called PhGE and PhGD. Both structures have been confirmed by infrared spectroscopy, solid state NMR for silicon and carbon nuclei, thermogravimetry, X-ray powder diffraction and SEM. The 13C NMR results showed organic moieties covalently bound on the inorganic framework, while 29Si NMR revealed the silicon only occupied T positions. The materials presented a well-organized trioctahedral 2:1 structure, indicated by the powder X-ray patterns by the (060) reflection, with basal spacings of 1015 and 1147 pm. Based on the nitrogen amount, 3.08±0.42 and 2.25±0.03 mmol g−1 of silylating agent were grafted onto the inorganic framework. Both phyllosilicates uptake barium ions from aqueous solution to give maximum adsorption of 0.54±0.05 and 0.81±0.01 mmol g−1.
Novel talc-like nickel phyllosilicates functionalized with ethanolamine and diethanolamine
AbstractEthanolamine (E) and diethanolamine (D) were incorporated into 3-glycidoxypropyltrimethoxysilane (G) to give two new silylating agents. These agents were used to prepare in sol–gel process talc-like compounds, corresponding to nickel phyllosilicates (Ph), called PhGE and PhGD. Both structures have been confirmed by infrared spectroscopy, solid state NMR for silicon and carbon nuclei, thermogravimetry, X-ray powder diffraction and SEM. The 13C NMR results showed organic moieties covalently bound on the inorganic framework, while 29Si NMR revealed the silicon only occupied T positions. The materials presented a well-organized trioctahedral 2:1 structure, indicated by the powder X-ray patterns by the (060) reflection, with basal spacings of 1015 and 1147 pm. Based on the nitrogen amount, 3.08±0.42 and 2.25±0.03 mmol g−1 of silylating agent were grafted onto the inorganic framework. Both phyllosilicates uptake barium ions from aqueous solution to give maximum adsorption of 0.54±0.05 and 0.81±0.01 mmol g−1.
Novel talc-like nickel phyllosilicates functionalized with ethanolamine and diethanolamine
Melo, Maurício A. Jr. (author) / Oliveira, Fernando J.V.E. (author) / Airoldi, Claudio (author)
Applied Clay Science ; 42 ; 130-136
2008-01-09
7 pages
Article (Journal)
Electronic Resource
English
Novel talc-like nickel phyllosilicates functionalized with ethanolamine and diethanolamine
| Online Contents | 2008
Novel talc-like nickel phyllosilicates functionalized with ethanolamine and diethanolamine
| Online Contents | 2008
Antimicrobial activity of delaminated aminopropyl functionalized magnesium phyllosilicates
| Online Contents | 2011
Phyllosilicates and Clay Minerals
| Elsevier | 1977