Synthesis of Graphene-Based Biopolymer TiO<sub>2</sub> Electrodes Using Pyrolytic Direct Deposition Method and its Catalytic Performance
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 Ti...
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MDPI AG
2020-09-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/10/9/1050 |
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| author | Parminder Kaur Sana Frindy Yuri Park Mika Sillanpää Monzur A. Imteaz |
| author_facet | Parminder Kaur Sana Frindy Yuri Park Mika Sillanpää Monzur A. Imteaz |
| author_sort | Parminder Kaur |
| collection | DOAJ |
| description | 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 TiO<sub>2</sub> 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. |
| first_indexed | 2024-03-10T16:23:11Z |
| format | Article |
| id | doaj.art-11429caa4172480aaf5dd09ffec000c6 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T16:23:11Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-11429caa4172480aaf5dd09ffec000c62023-11-20T13:26:06ZengMDPI AGCatalysts2073-43442020-09-01109105010.3390/catal10091050Synthesis of Graphene-Based Biopolymer TiO<sub>2</sub> Electrodes Using Pyrolytic Direct Deposition Method and its Catalytic PerformanceParminder Kaur0Sana Frindy1Yuri Park2Mika Sillanpää3Monzur A. Imteaz4Department of Separation Science, Lappeenranta-Lahti University of Technology, 53850 Lappeenranta, FinlandDepartment of Chemical and Metallurgical Engineering, School of Chemical Engineering, Aalto University, Kemistintie 1, Espoo, P. O. Box 16100, FI-00076 Aalto, FinlandDepartment of Separation Science, Lappeenranta-Lahti University of Technology, 53850 Lappeenranta, FinlandInstitute of Research and Development, Duy Tan University, Da Nang 550000, VietnamDepartment of Civil and Construction Engineering, Swinburne University of Technology, Melbourne, VIC 3112, AustraliaThe 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 TiO<sub>2</sub> 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.https://www.mdpi.com/2073-4344/10/9/1050TiO<sub>2</sub>-G filmchloramphenicol and nadololphoto-electro-FentonRSMcatalytic activity |
| spellingShingle | Parminder Kaur Sana Frindy Yuri Park Mika Sillanpää Monzur A. Imteaz Synthesis of Graphene-Based Biopolymer TiO<sub>2</sub> Electrodes Using Pyrolytic Direct Deposition Method and its Catalytic Performance Catalysts TiO<sub>2</sub>-G film chloramphenicol and nadolol photo-electro-Fenton RSM catalytic activity |
| title | Synthesis of Graphene-Based Biopolymer TiO<sub>2</sub> Electrodes Using Pyrolytic Direct Deposition Method and its Catalytic Performance |
| title_full | Synthesis of Graphene-Based Biopolymer TiO<sub>2</sub> Electrodes Using Pyrolytic Direct Deposition Method and its Catalytic Performance |
| title_fullStr | Synthesis of Graphene-Based Biopolymer TiO<sub>2</sub> Electrodes Using Pyrolytic Direct Deposition Method and its Catalytic Performance |
| title_full_unstemmed | Synthesis of Graphene-Based Biopolymer TiO<sub>2</sub> Electrodes Using Pyrolytic Direct Deposition Method and its Catalytic Performance |
| title_short | Synthesis of Graphene-Based Biopolymer TiO<sub>2</sub> Electrodes Using Pyrolytic Direct Deposition Method and its Catalytic Performance |
| title_sort | synthesis of graphene based biopolymer tio sub 2 sub electrodes using pyrolytic direct deposition method and its catalytic performance |
| topic | TiO<sub>2</sub>-G film chloramphenicol and nadolol photo-electro-Fenton RSM catalytic activity |
| url | https://www.mdpi.com/2073-4344/10/9/1050 |
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