Utilization of Diatomite as Silica Source for the Synthesis of Ordered Mesoporous Silica Materials


Mesoporous silica is an important material which has wide range of industrial applications. Currently, it is produced from precursors that are costly. This paper presents the preparation of mesoporous silica MCM-41 materials using diatomite as inexpensive silica source and quaternary ammonium salt as structure directing agent by sol-gel method. The obtained samples were characterized by x-ray powder diffraction, N2 physisorption, field emission scanning electron microscopy and transmission electron microscopy. The results indicated that as-synthesized MCM-41 possessed well-ordered hexagonal structure, monodispersed spheres particle, high surface area and pore volumes. MCM-41 was also produced from pure silica source for comparison. The results obtained in this work demonstrated the feasibility of diatomite as a potential source of silica and could significantly reduce the cost to preparation MCM-41 mesoporous materials.

Author Information
Jirapa Kraisit, Chulalongkorn University, Thailand
Chutimon Satirapipathkul, Chulalongkorn University, Thailand

Paper Information
Conference: ACSEE2016
Stream: Energy: Renewable Energy and Environmental Solutions

This paper is part of the ACSEE2016 Conference Proceedings (View)
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Posted by James Alexander Gordon