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Adsorption of Nickel and Chromium Ions by Amine-Functionalized Silica Aerogel

Sudarat Sertsing, Thanaphat Chukeaw, Sitthiphong Pengpanich, Bawornpong Pornchuti, A.C. Kumoro, Hadiyanto, S.A. Roces, L. Yung, X. Rong, A.W. Lothongkum, M.T. Phong, M.A. Hussain (+2 others)
2018 MATEC Web of Conferences  
In this study, silica aerogel was synthesized by drying at atmospheric pressure and modified further with aminopropyl triethoxysilane (APTES). The amine-functionalized silica aerogel was investigated as an adsorbent for removal of nickel and chromium ions. The effect of contact time, solution pH, and initial solution concentration were studied. The equilibrium was achieved within 60 min. The optimum pH was found to be 4. Adsorption equilibrium data were agreed fairly well with Langmuir isotherm
more » ... h Langmuir isotherm model. Adsorption capacities for nickel and chromium ions were found to be 40.32 mg/g and 46.08 mg/g, respectively.
doi:10.1051/matecconf/201815603014 fatcat:n3uqo27xrjdrzehmc7rirbboje