• Vol 6, No 7 (2015)
  • Metalurgy and Material Engineering

Effect of Citric Acid Addition upon the Precipitation Process on the Nanostructural Characteristics of ZnO Nanoparticles

Imam Akbar, Akhmad Herman Yuwono, Nofrijon Sofyan, Ghiska Ramahdita, Amalia Sholehah

Corresponding email: ahyuwono@eng.ui.ac.id


Published at : 30 Dec 2015
IJtech : IJtech Vol 6, No 7 (2015)
DOI : https://doi.org/10.14716/ijtech.v6i7.1681

Cite this article as:

Akbar, I., Yuwono, A.H., Sofyan, N., Ramahdita, G., Sholehah, A., 2015. Effect of Citric Acid Addition upon the Precipitation Process on the Nanostructural Characteristics of ZnO Nanoparticles. International Journal of Technology. Volume 6(7), pp. 1205-1210

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Imam Akbar Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok 16424, Indonesia
Akhmad Herman Yuwono Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok 16424, Indonesia
Nofrijon Sofyan Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok 16424, Indonesia
Ghiska Ramahdita Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok 16424, Indonesia
Amalia Sholehah Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok 16424, Indonesia
Email to Corresponding Author

Abstract
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Zinc oxide (ZnO) nanoparticles have been investigated in depth, due to their potential as a semiconductor material in dye sensitized solar cell applications. In this current research, ZnO nanostructure was synthesized using a simple precipitation technique with the addition of citric acid (C6H8O7)as the capping agent. Various ratios of ZnO and citric acid were prepared, i.e. 1:1, 2:1, 4:1 and calcination temperatures of 150 and 400°C were used to investigate the effect of those parameters on the ZnO nanostructure and its crystallinity. The nanostructure characteristics, i.e. nanocrystallite size, crystallinity, and optical properties were determined by using x-ray diffraction (XRD), scanning electron microscopy (SEM), and ultra-violet visible (UV-Vis) spectroscopy, respectively. The investigation results showed that ZnO nanostructure was formed as spherical shapes and rods in the range of 19.8–30.8 nm with the lowest band gap energy (Eg) of 3.15 eV obtained under conditions of a 4:1 ratio and calcined at 400°C. Considering nanostructural characteristics, the ZnO nanostructures in this study would be suitable for application as a semiconductor oxide layer in a dye sensitized solar cell.

Citric acid, Crystallinity, Dye-sensitized solar cell, Nanostructure, ZnO

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