Influence of polyvinylpyrrolidone coating on the surface morphology of ZnO microrods

Authors

Verdad Agulto ⋅ PH National Institute of Physics, University of the Philippines Diliman
Allan Christopher Yago ⋅ PH Institute of Chemistry, University of the Philippines Diliman
Ian Jasper Agulo ⋅ PH Department of Physical Sciences, University of the Philippines-Baguio
Roland Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Zinc oxide (ZnO) microrods grown via hydrothermal method were coated with polyvinylpyrrolidone (PVP). Fourier transform infrared spectra of coated microrods confirm the successful adsorption of PVP molecules to the ZnO surface through the C=O ligand. The effect of coating concentration on the surface morphology of ZnO was investigated. Splitting of twin boundaries and coarsening of ZnO facets were observed after coating which suggests the dissolution of ZnO in the PVP solution. The pH values of the coating solutions used were found to be acidic in nature which explains the dissolution. The purpose of this study is to understand the surface modification of ZnO by PVP ligand adsorption.

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Issue

2016: Proceedings of the 34th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2016-5B-05

Section

Condensed Matter Physics and Materials Science

Published

2016-08-18

How to Cite

[1]

V Agulto, AC Yago, IJ Agulo, and R Sarmago, Influence of polyvinylpyrrolidone coating on the surface morphology of ZnO microrods, Proceedings of the Samahang Pisika ng Pilipinas 34, SPP-2016-5B-05 (2016). URL: https://proceedings.spp-online.org/article/view/SPP-2016-5B-05.