DOI: https://doi.org/10.9767/bcrec.13.1.1354.127-135

Methyl Violet Degradation Using Photocatalytic and Photoelectrocatalytic Processes Over Graphite/PbTiO3 Composite

1Analytical and Environmental Chemistry Research Group, Department of Chemistry, Faculty of Mathematics and Natural Science, Sebelas Maret University, Indonesia

2Department of Chemistry, Faculty of Mathematics and Natural Science, Sebelas Maret University, Indonesia

Received: 19 Jul 2017; Revised: 8 Sep 2017; Accepted: 8 Sep 2017; Available online: 22 Jan 2018; Published: 2 Apr 2018.
Editor(s): Istadi Istadi
Open Access Copyright (c) 2018 by Authors, Published by BCREC Group
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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Abstract

Photocatalytic and photoelectrocatalytic degradation of methyl violet dye using Graphite/PbTiO3 composites has been conducted. The purposes of this research were to examine photocatalytic and photoelectrocatalytic degradation of methyl violet using Graphite/PbTiO3 composite. Synthesis of         Graphite/PbTiO3 composite was successfully performed via sol-gel method by mixing graphite powder, titanium tetra isopropoxide precursor solution (TTIP) and Pb(NO3)2. The Graphite/PbTiO3 composites were characterized using X-Ray Diffraction (XRD), Fourier Transform-Infra Red (FT-IR), and Scanning Electron Microscopy (SEM). The XRD diffractogram and IR spectrum of Graphite/PbTiO3 composite revealed all characteristic peak of graphite and PbTiO3. Photocatalytic degradation process showed that Graphite/PbTiO3 composite with ratio 1/1 decreased concentrations of methyl violet up to 92.20 %. While photoelectrocatalytic degradation processed for 30 minutes at neutral pH and 10 V voltage degraded the methyl violet until 94 %. However, the photoelectrocatalysis is still not significance to improve methyl violet degradation compared with photocatalysis. 

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Keywords: Graphite/PbTiO3; Photocatalytic; Photoelectrocatalytic degradation; Methyl violet
Funding: Directorate General of Higher Education

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Section: Original Research Articles
Language : EN
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