Adsorption of organic compounds from aqueous solution onto the synthesized zeolite

Journal of Hazardous Materials
Wen-Tien TsaiHsin-Chieh Hsu

Abstract

A novel zeolite was synthesized, characterized and employed for the adsorption of methylene blue (cationic dye) and bisphenol-A in aqueous solution. The pore properties of the synthesized zeolite have been determined using N(2) adsorption-desorption isotherms, indicating that it is a supermicroporous adsorbent with BET surface area of over 400 m(2)g(-1). Based on the XRD image, it was indicative of the probable formation of zeolite-P2 in the hydrothermal synthesis. The metal content and zeta-potential of the zeolite were also measured to examine the hydrophilicity and the effect of pH on the surface charge, respectively. It was found that the synthesized zeolite exhibited significantly higher adsorption capacity for methylene blue than that for bisphenol-A due to the difference in molecular properties. Kinetic studies at 25 degrees C indicated that the adsorption of methylene blue well followed the pseudo-second-order model and could be elucidated by considering the pore property and surface charge of the synthesized zeolite. The kinetic parameters thus obtained from the fittings of the model were dependent on initial dye concentration, pH, and adsorbent mass.

Citations

Feb 9, 2016·Environmental Technology·Serena EspositoFilomena Sannino
Sep 12, 2015·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Filomena SanninoMichele Pansini
May 18, 2016·Carbohydrate Polymers·Tahseen KamalAbdullah M Asiri
Dec 15, 2010·Journal of Hazardous Materials·Mária RehákováEugen Jóna
Jan 3, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Meng-Jung TsaiJing-Yun Wu
Jan 10, 2019·Journal of the Science of Food and Agriculture·Jing-Hua TzengYao-Tung Lin
Jul 23, 2019·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Sinead MorrisAnne-Marie Enright
Feb 8, 2021·Environmental Science and Pollution Research International·Evans DoviRunping Han

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