Advanced Oxidation Processes (AOPs) by Bismuth Oxyhalides for Environmental Remediation Using Solar Energy: Enhancing Material Property through Synthesis

Volume 2 - Issue 2

ID Sharma^1,2*, Chander Kant¹, AK Sharma¹ and KK Saini¹*

Received: March 01, 2018;   Published: March 15, 2018

DOI: 10.32474/AOICS.2018.02.000131

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Abstract

To combat air and water pollution with green chemistry is one of the major issues. Several research groups, worldwide, are today engaged in the design and development of new photocatalytic materials which can act to make air and water free from harmful species with the use of freely available solar energy. These strategies have been briefly addressed here. We have also reported the synthesis of Bismuth oxyhalides BiOX(X=Cl, Br, I) by wt chemical method using Bismuth nitrate (Bi (NO3)3.5H2O) and respective potassium halides (KCl, KBr, KI) as precursor materials and mixture of deionized water and ethanol as solvent. Solvent composition is found to affect the photo activity of the three materials viz; BiOCl, BiOI and BiOBr differently.

Synthesized samples were characterized by X-Ray diffraction (XRD), UV Visible absorption and HRSEM techniques. Photo degradation ability of the synthesized samples was ascertained by studying the degradation of methyl Orange (MO) in aqueous solution under UV light and solar light exposure environments. It is observed that the material crystallizes in the form of thin plates. BiOCl and BiOBrare found to exhibit excellent photo- degradation ability in the normal sun light exposure. Role of solvent composition on different oxyhalides have been attributed to the synthesis environment provided by solvent, which affect the crystal facet exposure.

Abstract| Introduction| Experimental Details| Structural and Basic Characterization| Photocatalytic Activity Measurements| Results and Discussion| Conclusion| Conclusion|