Synthesis of SBA-15 under Normal Pressure by Microwave Irradiation Method for Adsorption of Pb(II) in Environment

Abstract:

Mesoporous silica SBA-15 has been prepared rapidly under normal pressure by microwave irradiation method. The textural properties were studied by low-angle X-ray diffraction (XRD) and nitrogen adsorption-desorption. The optimum adsorption conditions of Pb(Ⅱ) on SBA-15 was investigated. The results show that the adsorption kinetics follows a pseudo-second-order rate model and the experimental equilibrium data is fitted well by Langmuir adsorption isotherm. The adsorption capacity reaches 50.10 mg•g-1 which is much higher than that of hydrothermal synthesized samples. This adsorbent has been applied in the determination of Pb(Ⅱ) in river sediments samples.

• Periodical: Advanced Materials Research (Volumes 113-116)
• Pages: 775-779
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.113-116.775
• Online since: June 2010
• Authors: Yan Liu, Yun Wang, Xiao Jie Zhang, Ji Min Xie, Yong Sheng Yan
• Keywords: Adsorption, Micro-Wave, Pb(II), SBA-15

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