The relationship between iron and Ilmenite for photocatalyst degradation

Lee, Ru Bin and Lee, Kian Mun and Lai, Chin Wei and Pan, Guan Ting and Yang, Thomas Chung Kuang and Juan, Joon Ching (2018) The relationship between iron and Ilmenite for photocatalyst degradation. Advanced Powder Technology, 29 (8). pp. 1779-1786. ISSN 0921-8831, DOI

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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.

Item Type: Article
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)
Uncontrolled Keywords: Photocatalytic degradation; Pre-treated Ilmenite; Hydrochloric acid; Reactive Black 5; Charge carrier
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
T Technology > TP Chemical technology
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 20 Jun 2019 01:51
Last Modified: 20 Jun 2019 01:51

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