One-pot synthesis of tungsten oxide nanostructured for enhanced photocatalytic organic dye degradation
作者： T. Govindaraj , C. Mahendran , V. S. Manikandan , R. Suresh
DOI: 10.1007/S10854-020-04309-3
关键词:
摘要: Herein, WO3 nanorods have been prepared by simple hydrothermal method with the assistance of Na2SO4 as a structure-directing agent (SDA). The impact SDA concentrations on structural, morphological, optical, and photocatalytic performance nanoparticles has investigated. From XRD pattern, phase transformation (monoclinic to hexagonal) was observed after adding into matrix. Randomly oriented hexagonal were developed influence SDA, which FE-SEM analysis. chemical composition electronic structure photocatalyst confirmed X-ray photoelectron spectroscopy. blue shift absorbance recorded in UV–Vis spectrum. In PL spectrum, surface oxygen vacancy or defects obtained at wavelength 520 552 nm. Also, facilitates improve dye degradation performance. 0.05 m exhibit maximum efficiency 86% under visible light exposure. Furthermore, specific catalyst showed an excellent stability reusability up four consecutive cycles degradation.
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Ahmad Umar, Rajesh Kumar, Girish Kumar, H Algarni, SH Kim, None, Effect of annealing temperature on the properties and photocatalytic efficiencies of ZnO nanoparticles Journal of Alloys and Compounds. ,vol. 648, pp. 46- 52 ,(2015) , 10.1016/J.JALLCOM.2015.04.236
Huili Zhang, Jiaqin Yang, Di Li, Wei Guo, Qing Qin, Lianjie Zhu, Wenjun Zheng, Template-free facile preparation of monoclinic WO3 nanoplates and their high photocatalytic activities Applied Surface Science. ,vol. 305, pp. 274- 280 ,(2014) , 10.1016/J.APSUSC.2014.03.061
Xinyu Zhang, Jiaqian Qin, Yanan Xue, Pengfei Yu, Bing Zhang, Limin Wang, Riping Liu, Effect of aspect ratio and surface defects on the photocatalytic activity of ZnO nanorods Scientific Reports. ,vol. 4, pp. 4596- 4596 ,(2015) , 10.1038/SREP04596
S.L. Liew, Z. Zhang, T.W. Glenn Goh, G.S. Subramanian, H.L. Debbie Seng, T.S. Andy Hor, H.-K. Luo, D.Z. Chi, Yb-doped WO3 photocatalysts for water oxidation with visible light International Journal of Hydrogen Energy. ,vol. 39, pp. 4291- 4298 ,(2014) , 10.1016/J.IJHYDENE.2013.12.204
Tianyou Peng, Dingning Ke, Jiangrong Xiao, Li Wang, Jun Hu, Ling Zan, Hexagonal phase WO3 nanorods: Hydrothermal preparation, formation mechanism and its photocatalytic O2 production under visible-light irradiation Journal of Solid State Chemistry. ,vol. 194, pp. 250- 256 ,(2012) , 10.1016/J.JSSC.2012.05.016
Trenton W. Elkins, Helena E. Hagelin-Weaver, Characterization of Mn–Na2WO4/SiO2 and Mn–Na2WO4/MgO catalysts for the oxidative coupling of methane Applied Catalysis A-general. ,vol. 497, pp. 96- 106 ,(2015) , 10.1016/J.APCATA.2015.02.040
Jang-Hoon Ha, P. Muralidharan, Do Kyung Kim, Hydrothermal synthesis and characterization of self-assembled h-WO3 nanowires/nanorods using EDTA salts Journal of Alloys and Compounds. ,vol. 475, pp. 446- 451 ,(2009) , 10.1016/J.JALLCOM.2008.07.048
Xien Liu, Fengying Wang, Qing Wang, Nanostructure-based WO3 photoanodes for photoelectrochemical water splitting Physical Chemistry Chemical Physics. ,vol. 14, pp. 7894- 7911 ,(2012) , 10.1039/C2CP40976C
Wei Xiao, Wenting Liu, Xuhui Mao, Hua Zhu, Dihua Wang, Na2SO4-assisted synthesis of hexagonal-phase WO3 nanosheet assemblies with applicable electrochromic and adsorption properties Journal of Materials Chemistry. ,vol. 1, pp. 1261- 1269 ,(2013) , 10.1039/C2TA00545J
Yangchun Yu, Wen Zeng, Mengxue Xu, Xianghe Peng, Hydrothermal synthesis of WO3·H2O with different nanostructures from 0D to 3D and their gas sensing properties Physica E-low-dimensional Systems & Nanostructures. ,vol. 79, pp. 127- 132 ,(2016) , 10.1016/J.PHYSE.2015.12.023