Green synthesis of iron oxide nanoparticle using Carica papaya leaf extract: application for photocatalytic degradation of remazol yellow RR dye and antibacterial activity

Md Shakhawat Hossen Bhuiyan; Muhammed Yusuf Miah; Shujit Chandra Paul; Tutun Das Aka; Otun Saha; Md Mizanur Rahaman; Md Jahidul Islam Sharif; Ommay Habiba; Md Ashaduzzaman

doi:10.1016/j.heliyon.2020.e04603

Green synthesis of iron oxide nanoparticle using Carica papaya leaf extract: application for photocatalytic degradation of remazol yellow RR dye and antibacterial activity

Heliyon. 2020 Aug 4;6(8):e04603. doi: 10.1016/j.heliyon.2020.e04603. eCollection 2020 Aug.

Authors

Md Shakhawat Hossen Bhuiyan¹, Muhammed Yusuf Miah¹, Shujit Chandra Paul¹, Tutun Das Aka^{2

3}, Otun Saha⁴, Md Mizanur Rahaman⁴, Md Jahidul Islam Sharif⁵, Ommay Habiba¹, Md Ashaduzzaman⁵

Affiliations

¹ Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Sonapur 3814, Noakhali, Bangladesh.
² Department of Pharmacy, Noakhali Science and Technology University, Sonapur 3814, Noakhali, Bangladesh.
³ Department of Pharmacy, Atish Dipankar University of Science and Technology, Uttara, Dhaka 1230, Bangladesh.
⁴ Department of Microbiology, University of Dhaka, Dhaka 1000, Bangladesh.
⁵ Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka 1000, Bangladesh.

Abstract

Synthesis of iron oxide nanoparticles by the recently developed green approach is extremely promising because of its non-toxicity and environmentally friendly behavior. In this study, nano scaled iron oxide particles (α-Fe₂O₃) were synthesized from hexahydrate ferric chloride (FeCl₃.6H₂O) with the addition of papaya (Carica papaya) leaf extract under atmospheric conditions. The synthesis of iron oxide nanoparticles was confirmed by systematic characterization using FTIR, XRD, FESEM, EDX and TGA studies. The removal efficiency of remazol yellow RR dye with the synthesized iron oxide nanoparticles as a photocatalyst was determined along with emphasizing on the parameters of catalyst dosage, initial dye concentration and pH. Increasing the dose of iron oxide nanoparticles enhanced the decolorization of the dyes and a maximum 76.6% dye degradation was occurred at pH 2 after 6 h at a catalyst dose of 0.8 g/L. Unit removal capacity of the photocatalyst was found to be 340 mg/g at dye concentration of 70 ppm and at a catalyst dose of 0.4 g/L. The synthesized nanoparticles showed moderate antibacterial activity against Klebsiella spp., E.Coli , Pseudomonas spp., S.aureus bacterial strains. Although the cytotoxic effect of nanoparticles against Hela, BHK-21 and Vero cell line was found to be toxic at maximum doses but it can be considered for tumor cell damage because it showed excellent activity against the Hela and BHK-21 cell lines.

Keywords: Antibacterial activity; Carica papaya; Cytotoxicity; Iron oxide nanoparticles; Materials chemistry; Materials science; Nanotechnology; Photocatalytic activity; Remazol yellow RR.