Effect of Fenton Oxidation Performance and Kinetics with Different Morphologies of α-Fe2O3 Nanocrystals

被引：4
|
作者：
Zhang Enlei [1 ]
Wang Lijie [1 ]
Zhang Bengui [1 ]
Sun Chuanbi [1 ]
Zhang Ying [1 ]
Wang Guosheng [1 ]
机构：
[1] Shenyang Univ Chem Technol, Coll Chem Engn, Shenyang 110142, Liaoning, Peoples R China
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2018年 / 18卷 / 04期
关键词：
alpha-Fe2O3; Nanorods; Fenton Oxidation; Morphology Control; PARTICLE-SIZE; AQUEOUS-SOLUTION; DEGRADATION; ADSORPTION; NANORODS; FEOOH; ACID; NANOWIRES; CATALYSTS; IRON;
D O I：
10.1166/jnn.2018.15191
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Different morphologies hematite (alpha-Fe2O3) nanocrystals were synthesized by hydrothermal process and subsequent calcination treatment. The crystal structure and shape of the products were confirmed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Fenton oxidation degradation of Congo red (CR) was carried out with alpha-Fe2O3 nanocrystals with different morphologies to compare their catalytic performance. The result shows that CR can be degraded above 90% after 2 h by using alpha-Fe2O3 nanorods. In addition, degradation efficiencies of alpha-Fe2O3 nanocrystals with different morphologies towards CR were also investigated. It reveals that alpha-Fe2O3 nanorods with exposed {210} and {001} planes exhibited superior Fenton oxidation performance to that of nanoparticles. It is traceable to the higher density of Fe3+ exposed on the {210} and {001} planes of nanorods than that of other morphologies crystals. The mechanism of Fenton oxidation and kinetics analysis were extensively studied.
引用
收藏
页码：2637 / 2642
页数：6
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