Ilmenite: Properties and photodegradation kinetic on Reactive Black 5 dye

被引：12
作者：
Lee, Ru-Bin [1 ]
Juan, Joon-Ching [1 ]
Lai, Chin-Wei [1 ]
Lee, Kian-Mun [1 ]
机构：
[1] Univ Malaya, Inst Grad Studies IPS, Nanotechnol & Catalysis Res Ctr NANOCAT, Kuala Lumpur 50603, Malaysia
来源：
CHINESE CHEMICAL LETTERS | 2017年 / 28卷 / 07期
关键词：
Ilmenite; Photo-degradation; Reactive Black 5; Solar irradiation; Photo-catalytic; PHOTOCATALYTIC DEGRADATION; INORGANIC-IONS; ORGANIC CONTAMINANTS; HYDROCHLORIC-ACID; OXIDATION; TITANIA; PHENOL; RUTILE; FETIO3/TIO2; PARAMETERS;
D O I：
10.1016/j.cclet.2017.03.006
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ilmenite is natural mineral ore made up with titanium and iron mineral; including small portion of magnesium and manganese. To the best of our knowledge, photo-degradation of Reactive Black 5 dye (RB 5) using ilmenite under solar irradiation is still lacking. In the present study, the physicochemical properties of ilmenite were characterized by using X-ray diffraction (XRD), Scanning electron microscope (SEM), BET and Raman Spectroscopy. Based on our results obtained, 73% solar-driven photo-degradation of RB 5 was successfully obtained when the catalyst loading increased up to 2.0 g/L for 20 min. In general, the photo-degradation of RB 5 by ilmenite followed first-order kinetics. The pH had a significant effect, with the most rapid degradation occurring at pH less than 7. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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收藏
页码：1613 / 1618
页数：6
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