Effect of Electrolyte Composition on Structural and Photoelectrochemical Properties of Titanium Dioxide Nanotube Arrays Synthesized by Anodization Technique

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Tabarak Jafar Awaid
Asmaa Kadim Ayal
Ahlam Mohammed Farhan
Muna Sarhan Sando
Lim Ying Chin

Abstract

The present work involves studying the effect of electrolyte composition [@1= 0.5 wt.%  NH4F / 5% H2O / 5% Glycerol (GLY)/ 90%  Ethylene Glycol (EG)] and [ @2= 0.5 wt. % NH4F / 5% H2O / 95%  Ethylene Glycol (EG)]  on the structural and photoelectrochemical properties of titania nanotubes arrays (TNTAs). TNTAs substrates were successfully carried out via anodization technique and were carried out in 40 V for one hour in different electrolytes (@1, and @2). The properties of physicochemical of TNTAs were distinguished via an X-ray Diffractometer (XRD), Field Emission Scanning Electron Microscope (FESEM), an Energy Dispersive X-ray (EDX), and UV–visible diffuse reflectance. The photoelectrochemical response of TNTAs was evaluated in 0.01M Na2S under the choppy light of a halogen lamp. TNTAs photoelectrode prepared at @1 electrolyte was not sufficient to increase the photocurrent response compared to TNTAs prepared at @2. The TNTAs photoelectrode prepared in the @2 electrolyte confirmed the highest photoconversion efficiency compared to the TNTAs photoelectrode prepared in the @1 electrolyte.

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Awaid TJ, Ayal AK, Farhan AM, Sando MS, Chin LY. Effect of Electrolyte Composition on Structural and Photoelectrochemical Properties of Titanium Dioxide Nanotube Arrays Synthesized by Anodization Technique. Baghdad Sci.J [Internet]. 2020Dec.1 [cited 2021Jan.18];17(4):1183. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/4041
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Author Biography

Asmaa Kadim Ayal, University of Baghdad, College of Science for Women

   Dr. Asmaa Kadim Ayal graduated with a B. Sc. degree in Chemistry on 19th July 1999 from University of Al-Qadisiya. She then served as Associate chemist in Chemistry Department in the University of Al-Qadisiyah. Then, she graduated with an M. Sc. degree in Chemistry on 19th January 2006 from the University of Al- Mustansiriya. She then served as the lecturer in the Chemistry Department at the University of Al- Qadisiya. After that, she moved to the College of Science for Women, University of Baghdad. She then received her Ph.D. in Physical Chemistry (Nanoparticles in Physical Chemistry) from Universiti Putra Malaysia in 2017. Dr. Asmaa is currently a lecturer at Chemistry Department, College of Science for women, University of Baghdad, Iraq. Her major research involves electrochemical synthesis and characterization of nanomaterials for photoelectrochemical application. Her research interests include preparation and characterizations of nanomaterials and their application. Dr. Asmaa has published 23 articles in several journals.  Currently, her h-index is 4 in Scopus and 6 h-index in Google Scholar Citations.

 

 

  

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