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Open AccessArticle

Enhanced Photocatalytic and Antibacterial Performance of ZnO Nanoparticles Prepared by an Efficient Thermolysis Method

1
Department of Chemistry and Bioactive Material Sciences, Research Institute of Physics and Chemistry, Chonbuk National University, Jeonju 54896, Korea
2
Department of Chemistry, Faculty of Civil Engineering, Khulna University of Engineering & Technology, Khulna 9203, Bangladesh
3
Department of Chemistry, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh
4
Textile Engineering, Chemistry and Science, North Carolina State University, 2401 Research Dr. Raleigh, NC 27695-8301, USA
*
Authors to whom correspondence should be addressed.
Catalysts 2019, 9(7), 608; https://doi.org/10.3390/catal9070608
Received: 3 June 2019 / Revised: 13 July 2019 / Accepted: 15 July 2019 / Published: 18 July 2019
(This article belongs to the Special Issue New Trends in the Photocatalytic Removal of Organic Dyes)
ZnO nanoparticles (ZnO-NPs) were synthesized by a straightforward modified thermal method using only one chemical: zinc acetate dihydrate. The process is environmentally safer than other methods because it does not involve other chemicals or a catalyst, acid, or base source. X-ray diffraction analysis indicated that the ZnO-NPs crystallize in the hexagonal wurtzite structure. The UV–vis absorption spectra revealed a marked redshift, which is critical for enhanced photocatalytic activity. We used methylene blue for photocatalytic activity tests and found an excellent degradation percentage (99.7%) within a short time (80 min). The antibacterial activity of the synthesized ZnO-NPs was tested against Escherichia coli at different concentrations of ZnO-NPs. The analysis revealed that the minimum inhibitory concentration (MIC) of the ZnO-NPs against E. coli was 30–50 μg/mL. Our ZnO-NPs were found to be more effective than previously reported ZnO-NPs synthesized via other methods. View Full-Text
Keywords: ZnO nanoparticles; thermal method; photocatalytic activity; antibacterial activity ZnO nanoparticles; thermal method; photocatalytic activity; antibacterial activity
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MDPI and ACS Style

Hanif, M.A.; Lee, I.; Akter, J.; Islam, M.A.; Zahid, A.A.S.M.; Sapkota, K.P.; Hahn, J.R. Enhanced Photocatalytic and Antibacterial Performance of ZnO Nanoparticles Prepared by an Efficient Thermolysis Method. Catalysts 2019, 9, 608. https://doi.org/10.3390/catal9070608

AMA Style

Hanif MA, Lee I, Akter J, Islam MA, Zahid AASM, Sapkota KP, Hahn JR. Enhanced Photocatalytic and Antibacterial Performance of ZnO Nanoparticles Prepared by an Efficient Thermolysis Method. Catalysts. 2019; 9(7):608. https://doi.org/10.3390/catal9070608

Chicago/Turabian Style

Hanif, Md. A.; Lee, Insup; Akter, Jeasmin; Islam, Md. A.; Zahid, Ali A.S.M.; Sapkota, Kamal P.; Hahn, Jae R. 2019. "Enhanced Photocatalytic and Antibacterial Performance of ZnO Nanoparticles Prepared by an Efficient Thermolysis Method" Catalysts 9, no. 7: 608. https://doi.org/10.3390/catal9070608

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Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

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