The structure heterogeneity of silica mesopores of Sba-15 in respect to the pluronic 123 template concentration

Mineral Processing and Technology International Conference 2017

Dhaneswara, D.^1 ; Fatriansyah, J.F.^1 ; Putranto, D.A.^1 ; Utami, S.A.A.^1 ; Delayori, F.^1

Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Jawa Barat

16424, Indonesia^1

关键词: Capillary condensation;    Interconnected pores;    Large mesopores;    Low concentrations;    Mesoporous SBA-15;    Silica mesopores;    Structure factors;    Structure heterogeneity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/285/1/012032/pdf
DOI  :  10.1088/1757-899X/285/1/012032

来源: IOP

【 摘 要 】

The analysis of structure heterogeneity factor of silica mesoporous SBA-15 has been conducted. The structure factor has been found to be different for low and high concentration of Pluronic-123 template. The structure heterogeneity of high concentration of Pluronic-123 has been found less than 1 while for low concentration, the structure heterogeneity was found to be larger than 1. This indicates the dissimilarity of the structure and can be used as a probe to detect the formation of large mesopores. It also was found that the system exhibits type IV and H1 adsorption type which indicates the capillary condensation and interconnected pores.