Photocatalytic properties of h-WO3 nanoparticles obtained by annealing and h-WO3 nanorods prepared by hydrothermal method

被引：1

作者：

Boyadjiev, Stefan I. ^{[1
]}

Nagy-Kovacs, Teodora ^{[2
]}

Lukacs, Istvan ^{[3
]}

Szilagyi, Imre M. ^{[1
,2
]}

机构：

[1] MTA BME Tech Analyt Chem Res Grp, Szent Gellert Ter 4, H-1111 Budapest, Hungary

[2] Budapest Univ Technol & Econ, Dept Inorgan & Analyt Chem, Szent Gellert Ter 4, H-1111 Budapest, Hungary

[3] Hungarian Acad Sci, Energy Res Ctr, Inst Tech Phys & Mat Sci, Konkoly Thege M Ut 29-33, H-1121 Budapest, Hungary

来源：

9TH INTERNATIONAL PHYSICS CONFERENCE OF THE BALKAN PHYSICAL UNION (BPU-9) | 2016年 / 1722卷

关键词：

TUNGSTEN TRIOXIDE; WO3; NANOFIBERS; STABILITY;

D O I：

10.1063/1.4944193

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In the present study, two different methods for preparing hexagonal WO3 (h-WO3) photocatalysts were used controlled thermal decomposition and hydrothermal synthesis. WO3 nanoparticles with hexagonal structure were obtained by annealing (NH4)(x)WO3-y at 500 degrees C in air. WO3 nanorods were prepared by a hydrothermal method using sodium tungstate Na2WO4, HCl, (COOH)(2) and NaSO4 precursors at 200 degrees C. The formation, morphology, structure and composition of the as-prepared nanoparticles and nanorods were studied by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy combined with energy-dispersive X-ray spectroscopy (SEM-EDX). The photocatalytic activity of the h-WO3 nanoparticles and nanorods was studied by decomposing methyl orange in aqueous solution under UV light irradiation.

引用

页数：4

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