TY - JOUR
T1 - Development of gallium incorporated mesoporous silica catalysts for the selective removal of BTX
AU - Prabhu, Azhagapillai
AU - Shoaibi, Ahmed Al
AU - Srinivasakannan, Chandrasekar
N1 - Funding Information:
We gratefully acknowledge the funding from the GRC at the Petroleum Institute .
PY - 2013
Y1 - 2013
N2 - Three-dimensional mesoporous gallium KIT-6 with different Si/Ga molar ratios have been prepared by using P123 as a structure directing agent under acidic medium in hydrothermal conditions. The synthesized Ga-KIT-6 materials were characterized using small angle X-ray diffraction (XRD), inductively coupled plasma-atomic emission spectroscopy (ICP-AES), nitrogen sorption analyzer, UV-visible diffuse reflectance spectroscopy (UV-vis DRS), X-ray fluorescence spectroscopy (XRF), Fourier transform infrared spectroscopy (FT-IR) and thermo gravimetric analysis (TGA). The developed mesoporous gallium KIT-6 material possesses a high surface area of 892 m2 g-1 and pore volume of 1.24 cm3 g-1. The mesoporous structure of the catalyst together with the presence of gallium in the silica framework, which confers acidity for better adsorption. Adsorption of BTX over the different Si/Ga molar ratios of cubic Ia3d (Ga-KIT-6) materials were studied and found that the better adsorption on Ga-KIT-6 (5). Interestingly, this material showed excellent adsorption capacity of BTX in aqueous solution.
AB - Three-dimensional mesoporous gallium KIT-6 with different Si/Ga molar ratios have been prepared by using P123 as a structure directing agent under acidic medium in hydrothermal conditions. The synthesized Ga-KIT-6 materials were characterized using small angle X-ray diffraction (XRD), inductively coupled plasma-atomic emission spectroscopy (ICP-AES), nitrogen sorption analyzer, UV-visible diffuse reflectance spectroscopy (UV-vis DRS), X-ray fluorescence spectroscopy (XRF), Fourier transform infrared spectroscopy (FT-IR) and thermo gravimetric analysis (TGA). The developed mesoporous gallium KIT-6 material possesses a high surface area of 892 m2 g-1 and pore volume of 1.24 cm3 g-1. The mesoporous structure of the catalyst together with the presence of gallium in the silica framework, which confers acidity for better adsorption. Adsorption of BTX over the different Si/Ga molar ratios of cubic Ia3d (Ga-KIT-6) materials were studied and found that the better adsorption on Ga-KIT-6 (5). Interestingly, this material showed excellent adsorption capacity of BTX in aqueous solution.
KW - Adsorption of BTX compounds
KW - Ga-KIT-6
KW - Mesoporous silica
KW - Surface acidity
KW - Surface area
UR - http://www.scopus.com/inward/record.url?scp=84880875122&partnerID=8YFLogxK
U2 - 10.1016/j.apcata.2013.06.050
DO - 10.1016/j.apcata.2013.06.050
M3 - Article
AN - SCOPUS:84880875122
SN - 0926-860X
VL - 466
SP - 137
EP - 141
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
ER -