« Previous Abstract"Biosensors for the detection of lung cancer biomarkers: A review on biomarkers, transducing techniques and recent graphene-based implementations"    Next AbstractDiscrimination of Red Wines with a Gas-Sensor Array Based on a Surface-Acoustic-Wave Technique »

J Colloid Interface Sci

Title:		Atomically dispersed Ti-O clusters anchored on NH(2)-UiO-66(Zr) as efficient and deactivation-resistant photocatalyst for abatement of gaseous toluene under visible light
Author(s):		Lin LY; Liu C; Dien Dang V; Fu HT;
Address:		"Institute of Environmental Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan. Electronic address: lylin@nycu.edu.tw. Institute of Environmental Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan. Faculty of Biology and Environment, Ho Chi Minh City University of Food Industry, 140 Le Trong Tan, Ho Chi Minh 700000, Viet Nam"
Journal Title:		J Colloid Interface Sci
Year:		2023
Volume:		20221230
Issue:
Page Number:		323 - 335
DOI:		10.1016/j.jcis.2022.12.147
ISSN/ISBN:		1095-7103 (Electronic) 0021-9797 (Linking)
Abstract:		"Photocatalytic oxidation (PCO) of volatile organic compounds (VOCs) over MOF-based photocatalysts is considerably impeded by the weak activation of reactant molecules on the catalyst surface and low charge carrier mobility. In this study, we demonstrate that atomically dispersed Ti species anchored on NH(2)-UiO-66(Zr) (AUiO-66(Zr/Ti)) exhibit high visible-light-responsive photocatalytic activity toward toluene vapor with an 83 % removal efficiency and 89 % CO(2) selectivity. These results are markedly superior to those reported in the literature. More importantly, AUiO-66(Zr/Ti) exhibited excellent catalytic stability during a prolonged reaction, while its pristine AUiO-66(Zr) counterpart underwent rapid catalytic deactivation after a few hours. The optimized sample, AUiO-66(Zr/Ti)-4h, provided extended visible light absorption and enhanced charge carrier mobility due to ligand-to-linker metal charge transfer. Meanwhile, the defect-rich surface of AUiO-66(Zr/Ti)-4h facilitated the activation of H(2)O/toluene molecules into the critical intermediates of hydroxyl, benzoic acid, and maleic anhydride, which were effectively converted under visible light illumination. On the basis of the combined results of the PCO of toluene and material characterization, the structure - activity relationship and the related catalytic mechanism are discussed comprehensively"
Keywords:		Metal organic framework Photocatalysis Ti-oxide cluster Toluene abatement UiO-66;
Notes:		"PubMed-not-MEDLINELin, Liang-Yi Liu, Chieh Dien Dang, Van Fu, Hsuan-Ting eng 2023/01/05 J Colloid Interface Sci. 2023 Apr; 635:323-335. doi: 10.1016/j.jcis.2022.12.147. Epub 2022 Dec 30"