New organic-inorganic hybrid microporous organosilica having high metal ion adsorption capacity

TitleNew organic-inorganic hybrid microporous organosilica having high metal ion adsorption capacity
Publication TypeJournal Article
Year of Publication2010
AuthorsPaul, M, Pal, N, Rajamohanan, PR, Rana, BS, Sinha, AK, Bhaumik, A
JournalPhysical Chemistry Chemical Physics
Volume12
Issue32
Pagination9389-9394
Date PublishedJUL
ISSN1463-9076
Abstract

A new microporous organic-inorganic hybrid organosilica LHMM-2 containing a bis(propyliminomethyl)benzene moiety inside the framework has been synthesized hydrothermally without using any template or structure-directing agent. Powder XRD and TEM image analyses suggest a new disordered microporous structure with pores of dimension ca. 0.54 nm, and C-13 and Si-29 MAS NMR and spectroscopic results indicate the presence of bridging organic bis(propyliminomethyl) benzene moiety in this framework. TPD-NH3 results suggested that nearly 5 times as much bis(propyliminomethyl) benzene moiety is located inside the micropore walls (matrix) than in the surface of the pores. LHMM-2 shows very high adsorption capacity for metal cations like Fe3+, Cu2+ and Zn2+.

DOI10.1039/b925619a
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)3.453
Divison category: 
Central NMR Facility