Perovskite Nano-Powder and Nano-Film Catalysts in Mineralization of Aqueous Organic Contaminants through Solar Simulated Radiation
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Published:2023-08-07
Issue:8
Volume:11
Page:2378
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ISSN:2227-9717
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Container-title:Processes
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language:en
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Short-container-title:Processes
Author:
Zorba Tamara1, Nassar Heba1, Helal Muath H. S.2, Song Jeheon3, Kim Tae Woo3, Jodeh Shehdeh1, Hilal Hikmat S.1ORCID
Affiliation:
1. Department of Chemistry, College of Science, An-Najah National University, Nablus P400, Palestine 2. Department of Pharmacy, College of Medical and Health Sciences, An-Najah National University, Nablus P400, Palestine 3. High Temperature Laboratory, Korea Institute of Energy Research, 152, Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
Abstract
Water contamination with various contaminants, including organic species, is a global concern. Reclamation through safe, economic and technically feasible methods is imperative. Two perovskites, zinc titanate (ZnTiO3) and manganese titanate (MnTiO3), mixed with TiO2 phases, were prepared as nano-powders and nano-films. The materials were characterized and used as catalysts in photodegradation of aqueous methylene blue, a hazardous model contaminant, using solar simulated radiation. The effects of various reaction conditions on the photodegradation were examined. The kinetics indicated the suitability of using the process at various contaminant concentrations and catalyst loadings. Both powder and film catalysts completely removed the contaminant in less than 6 h. Powder and film forms of the MnTiO3 mixture were more efficient than their ZnTiO3 counterparts. In both perovskite mixtures, the films exhibited higher catalytic efficiency than the powders. The film materials exhibited high catalytic efficiency in both the continuous flow and batch processes. Water contaminated with various methylene blue concentrations can be treated by the film catalysts that can be recovered and reused with no technical difficulties. The results open new horizons for larger-scale water purification processes.
Funder
Ministry of Science, ICT and Future Planning
Subject
Process Chemistry and Technology,Chemical Engineering (miscellaneous),Bioengineering
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