Open AccessFabrication of titanium dioxide nanotubes with reduced bandgaps by varying electrolytic concentrations
Author(s) -
C U Bhadra,
D. Henry Raja,
D. Jonas Davidson
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1166/1/012054
Subject(s) - titanium dioxide , materials science , ethylene glycol , electrolyte , anodizing , dissolution , chemical engineering , titanium , scanning electron microscope , inorganic chemistry , nanotechnology , metallurgy , composite material , chemistry , electrode , aluminium , engineering
The main objective of this work is to fabricate titanium dioxide nanotubes of reduced bandgaps for hydrogen generation. Nano scaled material has many peculiar properties than the bulk ones and has led to great break in various fields of science and technology. Titanium dioxide nanotubes have great potential because of its functional properties such as large surface to volume ratio. The TiO 2 nanotubes are grown by electrochemical anodization method at constant DC voltage of 12V for 1 hour. For sample A 0.25 wt% of potassium fluoride dissolved in 99% of ethylene glycol with molarity 0.004M is used as electrolyte. For samples B,C and D the electrolytic solution was prepared by the dissolution of 0.004M of ethylene glycol with copper nitrate(Cu(NO 3 ) 2 3H 2 O) solution of different concentration (0.002mM,0.003M,0.004M).Titanium dioxide nanotubes formed were studied by Field Emission Scanning Microscope and Photoluminescence Spectroscopy and the results were discussed.