Vidyasagar, Devthade and Kulkarni, Aditi and Ghugala, Sachin G and Umarea, Suresh S (2019) Open-mouth spherical g-C3N4/Fe-2, 5-thiophenedicarboxylic acid hybrid photocatalyst for dye degradation and bacterial inactivation. Journal of Chemical Technology and Biotechnology, 94 (3). pp. 761-767. ISSN 0268-2575, ESSN: 1097-4660

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Abstract

BACKGROUND: Photo-remediation of water is seen as an economical and sustainable solution to undertake the rampant pollution by dyes and bacterial pathogens. Despite significant advances made in semiconductor mediated photocatalysis, the search for cheap, efficient, eco-friendly and robust photocatalyst has underachieved. RESULTS: This paper reports the use of graphitic carbon nitride (g-C3N4) supported open-mouth spherical iron (III) based metal-organic framework (MOF) hybrid photocatalyst for rapid degradation of acidic dyes and bacterial pathogens. Open-mouth Fe-2,5-thiophenedicarboxylic acid (Fe-TDA) MOF was prepared by microwave-heating and coupled with g-C3N4 using methanol as solvent. Compared with the parent g-C3N4 and Fe-TDA, the resultant g-C3N4/Fe-TDA(x) hybrids have shown nearly 4-fold increase in acid violet 7 (AV7) dye degradation and Escherichia coli bacterial growth inhibition. The improvement in photo-response of g-C3N4/Fe-TDA(x) hybrids is ascribed to the exceptional specific surface area of the open-mouth MOF structure, rapid diffusion, transport of charged species and improved dissociation of photo-excitons. The present work may offer new directions for the synthesis of g-C3N4/MOF hybrid photocatalysts for visible light-driven applications. CONCLUSION: A new open-mouth nanospherical g-C3N4/Fe-TDA2wt% photocatalyst developed bymicrowave heating, produced a high specific surface area of 114m2 g−1, and improved rate kinetics of AV 7 dye photodegradation and E. coli inactivation.

Item Type:	Article
Uncontrolled Keywords:	Ddegradation; Fe(III)-TDA MOF; g-C3N4; Open Mouth Sphere; Photocatalyst
Subjects:	Materials Science
Divisions:	UNSPECIFIED
Depositing User:	Mr. RK Lohiya
Date Deposited:	07 Mar 2019 06:19
Last Modified:	07 Mar 2019 06:19
URI:	http://neeri.csircentral.net/id/eprint/1173

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