Development of gallium incorporated mesoporous silica catalysts for the selective removal of BTX

Azhagapillai Prabhu; Ahmed Al Shoaibi; Chandrasekar Srinivasakannan

doi:10.1016/j.apcata.2013.06.050

Development of gallium incorporated mesoporous silica catalysts for the selective removal of BTX

Chemical and Petroleum Engineering

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17 Scopus citations

Abstract

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.

Original language	British English
Pages (from-to)	137-141
Number of pages	5
Journal	Applied Catalysis A: General
Volume	466
DOIs	https://doi.org/10.1016/j.apcata.2013.06.050
State	Published - 2013

Keywords

Adsorption of BTX compounds
Ga-KIT-6
Mesoporous silica
Surface acidity
Surface area

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title = "Development of gallium incorporated mesoporous silica catalysts for the selective removal of BTX",

abstract = "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.",

keywords = "Adsorption of BTX compounds, Ga-KIT-6, Mesoporous silica, Surface acidity, Surface area",

author = "Azhagapillai Prabhu and Shoaibi, \{Ahmed Al\} and Chandrasekar Srinivasakannan",

note = "Funding Information: We gratefully acknowledge the funding from the GRC at the Petroleum Institute .",

year = "2013",

doi = "10.1016/j.apcata.2013.06.050",

language = "British English",

volume = "466",

pages = "137--141",

journal = "Applied Catalysis A: General",

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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 - https://www.scopus.com/pages/publications/84880875122

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 -

Development of gallium incorporated mesoporous silica catalysts for the selective removal of BTX

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Keywords

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