Electrochemical Synthesis and Photocatalytic Properties of α-Fe2O3

被引：16

作者：

Isaev, A. B. ^{[1
]}

Shabanov, N. S. ^{[1
,2
]}

Orudzhev, F. F. ^{[1
]}

Giraev, K. M. ^{[1
]}

Emirov, R. M. ^{[1
]}

机构：

[1] Dagestan State Univ, Dept Environm Chem & Technol, Makhachkala 367001, Russia

[2] Russian Acad Sci, Analyt Ctr Collect Use, Dagestan Sci Ctr, Gadzhiyev St 45, Makhachkala 367000, Russia

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2017年 / 17卷 / 07期

关键词：

Hematite; Electrochemical; Synthesis; Photocatalytic Oxidation; Mordant Dye; HYDROTHERMAL SYNTHESIS; HYDROGEN-PEROXIDE; HEMATITE; DEGRADATION; FACILE; NANOSTRUCTURES; DECOMPOSITION; NANOPARTICLES; PARTICLES; MECHANISM;

D O I：

10.1166/jnn.2017.14199

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The electrochemical method was used to synthesize hematite (alpha-Fe2O3) nanoparticles in the 0.1 M NaCl solution. The alpha-Fe2O3 were synthesized by dissolution the iron anode with formation the Fe(OH)(x) and its calcinations at different temperatures. The samples were characterized by means by X-ray diffraction (XRD), Raman and UV-vis spectroscopy, electron microscopy, EDX and FTIR. The photocatalytic oxidation of the mordant dye Chrome blue (CB) using electrochemical synthesize hematite was studied under ultraviolet light (UV-light) irradiations. The effect of hematite calcination temperature and hydrogen peroxide concentration on photocatalytic degradation of chrome blue was carried out. Increasing the annealing temperature are increases the degree of dye decolorization which connected with the gradually increasing proportion of the crystalline phase at the expense of the amorphous phase.

引用

页码：4498 / 4503

页数：6

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