TY - JOUR
T1 - One-step synthesis, characterization and oxidative desulfurization of 12-tungstophosphoric heteropolyanions immobilized on amino functionalized SBA-15
AU - Pham, Xuan Nui
AU - Tran, Dinh Linh
AU - Pham, Tuan Dat
AU - Nguyen, Quang Man
AU - Thi, Van Thi Tran
AU - Van, Huan Doan
PY - 2018/1
Y1 - 2018/1
N2 - Keggin-type 12-tungstophosphoric [PW12O40](3-) heteropolyanions were successfully immobilized onto mesoporous material surface of SBA-15 functionalized using the (3-aminopropyl)triethoxysilane (APTES) synthesized by one-pot co-condensation method, also called one-step synthesis. The synthesized PW -NH3+-SBA-15 catalyst was characterized by XRD, N-2 adsorption-desorption, FT-IR, TGA, SEM, TEM, EDS, XPS methods. The results indicated that ordered hexagonal mesostructure for SBA-15 support was still maintained after being functionalized with amine groups, while the specific surface area of SBA-15 was decreased. The active species of phosphotungstic acid H3PW12O40 (HPW) retained its Keggin structure of the heteropolyanions on the amine-modified SBA-15. The PW -+H3N-SBA-15 catalyst exhibited a high catalytic activity for oxidative desulfurization process of sulfur-containing model fuel. The dibenzothiophene (DBT) conversion of almost 100% was achieved with reaction conditions of 40 mg of catalyst dosage, 2 mL of hydrogen peroxide, 90 degrees C of reaction temperature, and 120 min of reaction time. (C) 2017 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
AB - Keggin-type 12-tungstophosphoric [PW12O40](3-) heteropolyanions were successfully immobilized onto mesoporous material surface of SBA-15 functionalized using the (3-aminopropyl)triethoxysilane (APTES) synthesized by one-pot co-condensation method, also called one-step synthesis. The synthesized PW -NH3+-SBA-15 catalyst was characterized by XRD, N-2 adsorption-desorption, FT-IR, TGA, SEM, TEM, EDS, XPS methods. The results indicated that ordered hexagonal mesostructure for SBA-15 support was still maintained after being functionalized with amine groups, while the specific surface area of SBA-15 was decreased. The active species of phosphotungstic acid H3PW12O40 (HPW) retained its Keggin structure of the heteropolyanions on the amine-modified SBA-15. The PW -+H3N-SBA-15 catalyst exhibited a high catalytic activity for oxidative desulfurization process of sulfur-containing model fuel. The dibenzothiophene (DBT) conversion of almost 100% was achieved with reaction conditions of 40 mg of catalyst dosage, 2 mL of hydrogen peroxide, 90 degrees C of reaction temperature, and 120 min of reaction time. (C) 2017 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
KW - Dibenzothiophene
KW - Functional mesoporous materials
KW - Heteropoly acid
KW - One-pot synthesis
KW - Oxidative desulfurization
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=anu_research_portal_plus2&SrcAuth=WosAPI&KeyUT=WOS:000418658000008&DestLinkType=FullRecord&DestApp=WOS_CPL
U2 - 10.1016/j.apt.2017.10.011
DO - 10.1016/j.apt.2017.10.011
M3 - Article
SN - 0921-8831
VL - 29
SP - 58
EP - 65
JO - Advanced Powder Technology
JF - Advanced Powder Technology
IS - 1
ER -