Adsorption and Photocatalytic Study of Phenol Using Composites of Activated Carbon Prepared from Onion Leaves (<i>Allium fistulosum</i>) and Metallic Oxides (ZnO and TiO<sub>2</sub>)
The aim of this study was to evaluate and compare the adsorption and photocatalytic activity of activated carbon-based photocatalysts. Titanium dioxide (TiO<sub>2</sub>) and zinc oxide (ZnO) were chosen as semiconductors to prepare composites with activated carbon by the wet impregnation...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-05-01
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| Series: | Catalysts |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4344/10/5/574 |
| Summary: | The aim of this study was to evaluate and compare the adsorption and photocatalytic activity of activated carbon-based photocatalysts. Titanium dioxide (TiO<sub>2</sub>) and zinc oxide (ZnO) were chosen as semiconductors to prepare composites with activated carbon by the wet impregnation method. Activated carbon was prepared using as starting material onion leaves (<i>Allium fistulosum</i>) and as activating agent phosphoric acid (H<sub>3</sub>PO<sub>4</sub>). Photooxidation and batch adsorption of phenol was studied to compare the efficiency of the materials prepared. The results showed that the composite AC–TiO<sub>2</sub> has a greater photocatalytic activity and a better adsorption capacity compared to AC–ZnO composite. |
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| ISSN: | 2073-4344 |