Factors affecting the reactivity of thiol-functionalized mesoporous silica adsorbents toward mercury(II)

• Published in: Talanta (Oxford) Vol. 79; no. 3; pp. 877 - 886
• Main Authors: Delacôte, Cyril, Gaslain, Fabrice O.M., Lebeau, Bénédicte, Walcarius, Alain
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.08.2009; Elsevier
• Subjects: Analytical chemistry; Chemical Sciences; Chemistry; Diffusion kinetics; Electrochemical methods; Exact sciences and technology; MCM-41; MCM-48; Mercury(II) adsorbent; Mesoporous silica; Speciation; Thiol; Thiol; MCM-48; Mesoporous silica; Mercury(II) adsorbent; MCM-41; Diffusion kinetics; Speciation; Self assembly; Stoichiometry; Particle size; Electrochemical method; In situ; Cationic surfactant; Grafting; Precursor; Silica; Chemical enrichment; Functionalization; Diffusion; Monitoring; Catalytic reaction; Mercury II; Ammonia; Adsorption; Catalyst; Comparative study

Numerous mercaptopropyl-functionalized silica spheres have been prepared by either post-synthesis grafting of MCM-41 and MCM-48 or self-assembly co-condensation of mercaptopropyltrimethoxysilane (MPTMS) or mercaptopropyltriethoxysilane (MPTES) and tetraethoxysilane (TEOS) precursors in hydroalcoholi...