New insights in photocatalytic removal of Alizarin Yellow using reduced Ce 3+ /TiO 2 catalyst
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RESEARCH ARTICLE
New insights in photocatalytic removal of Alizarin Yellow using reduced Ce3+/TiO2 catalyst Lalliansanga 1 & Diwakar Tiwari 1 & Seung Mok Lee 2 & Dong-Jin Kim 3 Received: 8 May 2020 / Accepted: 30 September 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract The present communication aims to obtain a novel Ce3+/TiO2 thin film in a single step facile method using the in situ template process. The material was characterized by the XRD (X-ray diffraction), XPS (X-ray photoelectron spectroscopy), TEM (transmission electron microscope), and AFM (atomic force microscope) analyses. The thin film catalyst was intended to introduce in the degradation of one of potential dye Alizarin Yellow from aqueous solutions using the UV-A radiations. The mechanisms of degradation along with the physicochemical parametric studies were conducted extensively. The mineralization of pollutant and the replicate use of catalysts further enhance the applicability of present communication. Additionally, the real matrix treatment was conducted to simulate the treatment process. Keywords Ce3+/TiO2 catalyst . Facile one step synthesis . Mineralization . Alizarin Yellow . X-ray photoelectron spectroscopy . Real matrix degradation
Introduction The textile industries are utilizing large quantity of dyeing compounds; therefore, the effluent of these industries contained with significant amount of dyes. Through the industrial effluent, the dyes ultimately enter into the terrestrial water bodies and contaminating the aquatic environment at large. The concern is serious since some of these dye compounds especially the azo group of dyes are notably toxic, carcinogenic, or mutagenic in nature (Dumont et al. 2010; Del Giacco et al. 2017). Several dye compounds are persistent and stable in aquatic environment, hence pose greater threat to the ecosystem (Puzyn 2012). The alum or ferrous sulfate is often used
Responsible editor: Sami Rtimi * Diwakar Tiwari [email protected] 1
Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, India
2
Department of Health and Environment, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung 210-701, Republic of Korea
3
Department of Environmental Science & Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
as coagulant for the treatment of textile waste water in the removal of dye compounds from the effluents. However, the use of coagulant resulted in increase of sludge which receives further exaggerated problem of sludge disposal (Juang et al. 2013). Similarly, the adsorption/sorption of dyes using variety of solid materials also poses problems of solid waste disposal or even preconcentration/or separation. Therefore, the alternative methods including the photocatalyzed degradation of dye compounds are tried in the removal/degradation of these pollutants from the aqueous wastes. In a line, the TiO2 was modified with a cationic surfactant enabled to enhance the degradation of Alizarin Yellow S (ARS). It was
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