Synthesis of Graphene-Based Biopolymer TiO2 Electrodes Using Pyrolytic Direct Deposition Method and its Catalytic Performance
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2020-09
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Language
en
Pages
17
1-17
1-17
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CATALYSTS, Volume 10, issue 9
Abstract
The traditional methods used to synthesize graphene layers over semiconductors are chemical-based methods. In the present investigation, a novel photoelectroactive electrode was synthesized using a chitosan biopolymer without the usage of chemicals. A chitosan-biopolymer layer over the surface of TiO2 was generated by electrodeposition. Furthermore, the pyrolysis method was used for the conversion of a biopolymer into graphene layers. The catalytic activity of the fabricated electrodes was investigated by the photo-electro-Fenton (PEF) process to oxidize chloramphenicol and nadolol pharmaceutical drugs in wastewater, remove metals (scandium, neodymium, and arsenic) and degrade real municipal wastewater. The PEF operational parameters (pH, voltage, reaction time, and Fenton catalytic dose) were optimized for the overall degradation of chloramphenicol and nadolol pharmaceutical drugs in wastewater. It was observed that at the optimum process operational parameters it took 40 min to degrade chloramphenicol and nadolol pharmaceutical drugs in wastewater. It was proved that biopolymer-based photoelectroactive novel electrodes render good catalytic activity. Furthermore, the reusability study of fabricated electrodes showed excellent storage and self-healing properties.Description
Keywords
Catalytic activity, Chloramphenicol and nadolol, Photo-electro-Fenton, RSM, TiO-G film
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Citation
Kaur , P , Frindy , S , Park , Y , Sillanpää , M & Imteaz , M A 2020 , ' Synthesis of Graphene-Based Biopolymer TiO2 Electrodes Using Pyrolytic Direct Deposition Method and its Catalytic Performance ' , Catalysts , vol. 10 , no. 9 , 1050 , pp. 1-17 . https://doi.org/10.3390/catal10091050