Synthesis of a Zinc Oxide Nanoflower Photocatalyst from Sea Buckthorn Fruit for Degradation of Industrial Dyes in Wastewater Treatment
by
Esrat Jahan Rupa 1, Lalitha Kaliraj 2, Suleman Abid 2, Deok-Chun Yang 1,2,* and Seok-Kyu Jung 1,2,*
Esrat Jahan Rupa 1, Lalitha Kaliraj 2, Suleman Abid 2, Deok-Chun Yang 1,2,* and Seok-Kyu Jung 1,2,*
1
Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University Giheung-gu Yongin-si, Gyeonggi-do, Yongin 446–701, Korea
2
Graduate School of Biotechnology and Ginseng Bank, College of Life Sciences, Kyung Hee University, Yongin 446–701, Korea
*
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(12), 1692; https://doi.org/10.3390/nano9121692
Received: 9 November 2019 / Revised: 22 November 2019 / Accepted: 22 November 2019 / Published: 26 November 2019
(This article belongs to the Section Synthesis, Interfaces, and Nanostructures)
: Green synthesis of ZnO nanoparticles has attracted research attention as a sustainable method of avoiding the destructive effect of chemicals. We synthesized a flower-shaped zinc oxide (ZnO) nanoflower (NF) from sea buckthorn fruit (SBT) by co-precipitation and characterized it using X-ray powder diffraction (XRD), X-ray photo electronic microscopy (XPS), photoluminescence (PL), field emission transmission electron microscopy (FE-TEM), and Fourier-transform infrared (FT-IR) spectroscopy. The ability of the ZnO/NF to degrade cationic and anionic dyes, including malachite green (MG), Congo red (CR), methylene blue (MB), and eosin Y (EY), under ultraviolet illumination was studied. The photocatalyst degraded approximately 99% of the MG, MB, CR and EY dyes within 70, 70, 80, and 90 min of contact time, respectively, at a dye concentration of 15 mg/L, 5 mg/L, SBT-ZnO/NF degraded 100% of the MG, MB, CR and EY dyes within 23, 25, 28, and 30 min, respectively. The results indicate that SBT-ZnO/NFs as synthesized is an inexpensive, non-toxic, rapid, and reusable photocatalyst that can play an enhanced role in wastewater treatment.
Keywords:
sea buckthorn fruit; zinc oxide nanoflower; dye degradation; photocatalysis; UV illumination; Congo red; malachite green; Eosin Y; Methylene blue
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Rupa, E.J.; Kaliraj, L.; Abid, S.; Yang, D.-C.; Jung, S.-K. Synthesis of a Zinc Oxide Nanoflower Photocatalyst from Sea Buckthorn Fruit for Degradation of Industrial Dyes in Wastewater Treatment. Nanomaterials 2019, 9, 1692.
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