The relationship between iron and Ilmenite for photocatalyst degradation
Document Type
Article
Publication Date
1-1-2018
Abstract
Photocatalytic degradation of organic compounds is a key target for the development of sustainable environmental pollution management system. The use of pre-treated Ilmenite with low concentration of Fe ions via single step of chloride process is essential to generate a highly effective photocatalyst. In the present study, comprehensive investigations on Fe concentrations in Ilmenite has been conducted. Based on the findings, pre-treated Ilmenite with low Fe content (0.76–7.15 at%) was successfully synthesized through a single step chloride process by using 15–35 v/v% of HCl. Interestingly, Ilmenite with 1.62 at% Fe after pre-treated with 25 v/v% HCl was able to photodegrade 100% of the Reactive Black 5 (RB5) under visible light within 30 min. The improvement of photocatalytic degradation efficiency of the pre-treated Ilmenite is mainly attributed to the better photo-induced charge carrier mobility and low recombination losses.
Keywords
Photocatalytic degradation, Pre-treated Ilmenite, Hydrochloric acid, Reactive Black 5, Charge carrier
Divisions
nanotechnology
Funders
Prototype Research Grant Scheme (No. PR002-2016),Trans Disciplinary Research Grant Scheme (No. TR002-2015A),Fundamental Research Grant Scheme (No. FP008-2015A),Universiti Malaya Prototype Grant (No. RU005G-2016),SATU grant (No. RU018B-2016, ST010-2017)
Publication Title
Advanced Powder Technology
Volume
29
Issue
8
Publisher
Elsevier