Chemically modified silica gel with thiol group as an adsorbent for retention of some toxic soft metal ions from water and industrial effluent

Barreto-Rodrigues, 2009, Combined zero-valent iron and fenton processes for the treatment of Brazilian TNT industry wastewater, J. Hazard. Mater., 165, 1224, 10.1016/j.jhazmat.2008.09.120 WHO, 1971 Gaballah, 1998, Recovery of heavy metal ions through decontamination of synthetic solutions and industrial effluents using modified barks, J. Geochem. Explor., 62, 241, 10.1016/S0375-6742(97)00068-X Li, 2007, Synthesis and characterization of imidazole functionalized SBA-15 as an adsorbent of hexavalent chromium, Mater. Lett., 61, 3197, 10.1016/j.matlet.2006.11.079 Ahmad, 2009, Adsorption kinetics and thermodynamics of β-carotene on silica-based adsorbent, Chem. Eng. J., 148, 378, 10.1016/j.cej.2008.09.011 Fung Lam, 2008, Selective adsorption of gold from complex mixtures using mesoporous adsorbents, Chem. Eng. J., 145, 185, 10.1016/j.cej.2008.03.019 Tiana, 2010, Removal of transition metal ions from aqueous solutions by adsorption, using a novel hybrid material silica gel chemically modified by triethylenetetraminomethylenephosphonic acid, Chem. Eng. J., 162, 573, 10.1016/j.cej.2010.05.065 Atia, 2009, Adsorption/desorption behavior of acid orange 10 on magnetic silica modified with amine groups, Chem. Eng. J., 150, 55, 10.1016/j.cej.2008.12.004 Blitz, 2006, Functionalized surfaces: silica structure and metal ion adsorption behavior Langmuir, 1916, The constitution and fundamental properties of solids and liquids, J. Am. Chem. Soc., 38, 2221, 10.1021/ja02268a002 Freundlich, 1906, Over the adsorption in solution, J. Phys. Chem., 57, 385 Tempkin, 1940, Kinetics of ammonia synthesis on promoted iron catalyst, Acta Phys. Chem. USSR, 12, 327 Redlich, 1959, A useful adsorption isotherm, J. Phys. Chem., 63, 1024, 10.1021/j150576a611 Sips, 1948, Combined form of Langmuir and Freundlich equations, J. Chem. Phys., 16, 490, 10.1063/1.1746922 Lagergren, 1898, Zur theorie der sogenannten adsorption gelöster stoffe, Kungliga Svenska Vetenskapsakademiens, Handlingar, 24, 1 Ho, 1999, Pseudo-second order model for sorption process, Process Biochem., 34, 451, 10.1016/S0032-9592(98)00112-5 Juang, 1997, Application of the Elovich equation to the kinetics of metal sorption with solvent-impregnated resins, Ind. Eng. Chem. Res., 36, 813, 10.1021/ie960351f Kumar, 2006, Comparative analysis of linear and non-linear method of estimating the sorption isotherm parameters for malachite green onto activated carbon, J. Hazard. Mater., 136, 197, 10.1016/j.jhazmat.2005.09.018 Mercier, 1997, Access in mesoporous materials: advantages of a uniform pore structures in the design of a heavy metal ion adsorbent for environmental remediation, Adv. Mater., 9, 500, 10.1002/adma.19970090611 Mercier, 1998, Heavy metal ion adsorbents formed by the grafting of thiol functionality to mesoporous silica molecular sieves, Environ. Sci. Technol., 32, 2749, 10.1021/es970622t