Title of article :
The first study of adsorption of methylene blue by Black Titania (B-TiO2) nanoparticle in aqueous solution
Author/Authors :
Soleimani ، M. School of Chemistry, College of Science - University of Tehran , Boorboor Azimi ، E. School of Chemistry, College of Science - University of Tehran , Mousavi ، M. School of Chemistry, College of Science - University of Tehran , Ghasemi ، J. B. School of Chemistry, College of Science - University of Tehran , Badiei ، A. School of Chemistry, College of Science - University of Tehran
Abstract :
In this study, the elimination of methylene blue (MB) by adsorption on Black Titania (B-TiO2) in an aqueous solution in the dark room is investigated. Preparation of B-TiO2 was carried out via the reduction of white TiO2 by NaBH4 in a tube furnace under an inert gas atmosphere at 600°C. Characterization of the absorbent was carried out by XRD, N2 adsorption-desorption, SEM mapping, photoluminescence, EDX analysis, Zeta potential, DLS, and FT-IR. The maximum adsorption capacity of B-TiO2 was found to be 88.65 mg g−1. The rate-limiting step was the intra-particle diffusion stage. The maximum adsorption was observed under the conditions: 26 mg of the B-TiO2 at pH 6 and MB concentration of 10 mg L−1. It was demonstrated that B-TiO2 might be recycled six times with very good adsorption results while keeping its high removal efficiency.
Keywords :
Black Titania , methylene blue , Adsorption Isotherm , Kinetic studies
Journal title :
Scientia Iranica(Transactions C: Chemistry, Chemical Engineering)
Journal title :
Scientia Iranica(Transactions C: Chemistry, Chemical Engineering)
