Enriched Catalytic Activity of TiO<sub>2</sub> Nanoparticles Supported by Activated Carbon for Noxious Pollutant Elimination
Cleaning wastewater has become one of the most serious issues for a number of scientists and researchers in recent years, as water is the most basic need for the daily life of humans. There has been a focus on the removal of noxious pollutants from wastewater effluents by using nanocatalysts owing t...
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| Main Authors: | , , , , , , , , , |
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| Format: | article |
| Language: | EN |
| Published: |
MDPI AG
2021
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| Subjects: | |
| Online Access: | https://doaj.org/article/86ea7f356b1a4d0493c53ffbb02fec2d |
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| Summary: | Cleaning wastewater has become one of the most serious issues for a number of scientists and researchers in recent years, as water is the most basic need for the daily life of humans. There has been a focus on the removal of noxious pollutants from wastewater effluents by using nanocatalysts owing to their unique physicochemical actions and stability. Herein we manufactured TiO<sub>2</sub> nanoparticles supported by activated carbon (AC-TiO<sub>2</sub>) using a cost-effective sonochemical method. The band structures of the AC-TiO<sub>2</sub> and TiO<sub>2</sub> were modified from 3.2 to 3.1 eV, thus increasing the catalytic activity. The structural, optical and anatase crystal phase properties, with morphological confirmation, were studied by applying UV-DRS, PL, FESEM, XRD, along with HRTEM, respectively. The specific surface area, calculated by BET analysis, was found to be ~241 m<sup>2</sup>/gm and ~46 m<sup>2</sup>/gm for AC-TiO<sub>2</sub> and TiO<sub>2</sub>. The degradation efficiency of the as-prepared nanocatalysts against the very toxic but rarely studied organic textile dye pollutant RO 84 was investigated and 97% efficiency were found for the AC-TiO<sub>2</sub> as compared to pure TiO<sub>2</sub>, which is a highly appreciated finding in the catalytic dye degradation application domain. Such surface-modified nanocatalysts could be further implemented for the treatment of wastewaters/waste effluents released from chemical industries, laboratories and other sources. |
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