Please use this identifier to cite or link to this item:
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/71487
Title: | Effect of KOH molarity on structure, morphology, and optical properties of flower-like CuO nanostructures synthesized by ultrasonic-assisted precipitation method |
Authors: | Akhiruddin Maddu Ahmad Habibi, Irmansyah akhiruddin@apps.ipb.ac.id |
Keywords: | CuO nanostructure flower-like morphology KOH sonochemistry |
Issue Date: | Apr-2021 |
Publisher: | Universiti Malaysia Perlis (UniMAP) |
Citation: | International Journal of Nanoelectronics and Materials, vol.14(2), 2021, pages 149-158 |
Abstract: | This paper reports the effect of KOH molarity variation on structure, morphology, and optical properties of CuO nanostructures synthesized by ultrasonic-assisted precipitation method. The results of the XRD analysis showed that the CuO samples had a monoclinic structure with lattice constants which decreased with increasing KOH molarity in the sonochemical precursors. The average crystallite size (ACS) of the CuO samples depend on the KOH molarity, which tends to decrease (in the range 16-23 nm) with increasing KOH molarity. Small ACS indicates that the CuO samples tend to have a nanocrystal structure. The morphology of the CuO samples is also influenced by the KOH molarity, which the flower-shaped CuO nanostructure was found for low molarity (0.25 M) of KOH in the sonochemical precursor. The optical characteristics of CuO samples strongly absorb the wide spectrum of electromagnetic waves below 650 nm. The bandgap energy of the CuO samples has a fairly large value and fluctuates in the range of 1.74 - 1.82 eV which varies with the molarity of KOH in the precursor solutions. |
Description: | Link to publisher's homepage at http://ijneam.unimap.edu.my |
URI: | http://dspace.unimap.edu.my:80/xmlui/handle/123456789/71487 |
ISSN: | 1985-5761 (Printed) 1997-4434 (Online) |
Appears in Collections: | International Journal of Nanoelectronics and Materials (IJNeaM) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Effect of KOH Molarity on Structure, Morphology, and Optical.pdf | 494.16 kB | Adobe PDF | View/Open |
Items in UniMAP Library Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.