Engineering highly effective and stable nanocomposite photocatalyst based on NH2-MIL-125 encirclement with Ag3PO4 nanoparticles
authors Abdelhameed, RM; Tobaldi, DM; Karmaoui, M
nationality International
journal JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
author keywords New dry-synthesis process; Metal organic framework nanocomposite/Ag3PO4 NPs@NH2-MIL-125; Photocatalytic activity; Photostability properties
keywords VISIBLE-LIGHT-DRIVEN; METAL-ORGANIC FRAMEWORKS; HYDROGEN-PRODUCTION; SUB-MICROCRYSTALS; RHODAMINE-B; EFFICIENT; COMPOSITE; STABILITY; MIL-125; DECOMPOSITION
abstract The development of highly efficient photocatalyst under visible light still a challenge. Herein we present band gap modification of NH2-MIL-125 by encirclement with suitable semiconductor that possesses a narrow band gap Ag3PO4 nanoparticles (NPs). The band gap of NH2-MIL-125 was decreased from 2.51 to 2.39 eV, making them potential candidates for photocatalytic applications. Our prepared photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and UV-vis diffuse reflectance spectroscopy (UV-vis DRS). TEM characterizations indicated that NH2-MIL-125 MOFs are coated with Ag3PO4 NPs. The photocatalytic activity (PCA) was evaluated in the liquid-solid phase, by monitoring the degradation of an organic dye (methylene blue (MB) and rhodamine-B (RhB)) under visible-light irradiation. Furthermore, the Ag3PO4@NH2-MIL-125 nanocomposites shown themselves to be the most active with the reaction rate being 39 and 35 times higher than the well known Degussa P25 TiO2 toward photocatalytic degradation of MB and RhB. (C) 2017 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE SA
issn 1010-6030
year published 2018
volume 351
beginning page 50
ending page 58
digital object identifier (doi) 10.1016/j.jphotochem.2017.10.011
web of science category Chemistry, Physical
subject category Chemistry
unique article identifier WOS:000417657900006
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journal analysis (jcr 2017):
journal impact factor 2.891
5 year journal impact factor 2.680
category normalized journal impact factor percentile 56.122
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