Further Insight into the Definite Morphology and Formation Mechanism of Mesoporous Silica KCC-1.
The unique three-dimensional pore structure of KCC-1 has attracted significant attention and has proven to be different compared to other conventional mesoporous silica such as the MCM-41 family, SBA-15, or even MSN nanoparticles. In this research, we carefully examine the morphology of KCC-1 to define more appropriate nomenclature. We also propose a formation mechanism of KCC-1 based on our experimental evidence. Herein, the KCC-1 morphology was interpreted mainly on the basis of compiling all observation and information taken from SEM and TEM images. Further analysis on TEM images was carried out. The gray value intensity profile was derived from TEM images in order to determine the specific pattern of this unique morphology that is found to be clearly different from that of other types of porous spherical-like morphologies. On the basis of these results, the KCC-1 morphology would be more appropriately reclassified as bicontinuous concentric lamellar morphology. Some physical characteristics such as the origin of emulsion, electrical conductivity, and the local structure of water molecules in the KCC-1 emulsion were disclosed to reveal the formation mechanism of KCC-1. The origin of the KCC-1 emulsion was characterized by the observation of the Tyndall effect, conductometry to determine the critical micelle concentration, and Raman spectroscopy. In addition, the morphological evolution study during KCC-1 synthesis completes the portrait of the formation of mesoporous silica KCC-1.
Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia.|Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia.
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Febriyanti
Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia.|Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia.
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Suendo
Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia.|Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia.
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Mukti
Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia.|Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia.
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Prasetyo
Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia.|Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia.
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Arifin
Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia.|Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia.
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Akbar
Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia.|Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia.
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Triwahyono
Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia.|Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia.
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Marsih
Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia.|Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia.
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