Synthesis, Characterization of Hydrothermally Grown MWCNT-TiO2 Photoelectrodes and Their Visible Light Absorption Properties
作者： Sawanta S. Mali , Chirayath A. Betty , Popatrao N. Bhosale , P. S. Patil
DOI: 10.1149/2.004202JSS
关键词:
摘要: We have synthesized multiwalled carbon nanotubes (MWCNT)-TiO2 hybrid nanocoral thin films by hydrothermal route with titanium tetrachloride (TiCl4) and functionalized MWCNT as the precursor. The new MWCNT-TiO2 material was characterized scanning electron microscopy (SEM), Fourier Transform Infrared (FT-IR) spectroscopy, Raman spectroscopy (FT-Raman), X-ray diffraction (XRD), X-Ray photoelectron (XPS) etc. study indicates that deposition process alters typical structures of material. film shows drastically changed morphology; i.e. coral like morphology TiO2 gets disturbed transforms into compactly arranged spherical ball particles size ranging from ∼550‐650 nm. MWCNT‐TiO2 exhibit high photocurrent density (0.693 mA/cm 2 ) yields overall conversion efficiency (η )o f 2.37%.
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