Enhanced removal of organic dye by activated carbon decorated TiO2 nanoparticles from Mentha Aquatica leaves via ultrasonic approach
| Autor: | Nabeen K. Shretha, Abhijit N. Kadam, Chinna Bathula, Sankar Sekar, Hyun-Seok Kim, Young-Soo Seo, Ji-Yeon Choy, Hae-Kyung Youi, Iqra Rabani |
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| Rok vydání: | 2021 |
| Předmět: |
Anatase
Materials science chemistry.chemical_element Nanoparticle 02 engineering and technology 01 natural sciences Catalysis chemistry.chemical_compound 0103 physical sciences Bathochromic shift Materials Chemistry medicine 010302 applied physics Process Chemistry and Technology 021001 nanoscience & nanotechnology Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry Titanium dioxide Ceramics and Composites Photocatalysis 0210 nano-technology Carbon Activated carbon medicine.drug Nuclear chemistry |
| Zdroj: | Ceramics International. 47:8732-8739 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2020.12.282 |
| Popis: | The development and investigation of environmental-friendly photocatalysts remain a challenge for eco-system remediation concerns. Herein, an ultrasonically-driven, biogenic, green synthesis of titanium dioxide (TiO2) nanoparticles (NPs) utilizing the extract of Mentha Aquatica leaves is reported. The TiO2 nanoparticles were further functionalized with carbon (TiO2@Carbon). The product composition and structure were examined through Raman, BET, and XPS analysis. The XRD studies of the TiO2 NPs confirmed the anatase phase of nanostructures. The TiO2@Carbon NPs displayed enhanced photocatalytic activity(doubled) compared to pristine TiO2 due to their increased surface area, a bathochromic shift in the optical absorption band, and effective charge separation. Significantly, greater than 90% RhB dye was decayed during the photocatalytic oxidation method, which is validated via trapping active species experiment. Carbon is a powerful substrate for the TiO2 hybrid and can be reused over successive five catalytic cycles. The experimental results demonstrated the TiO2@Carbon as a potential candidate for highly-efficient, eco-friendly, reusable, cost-effective photocatalyst. |
| Databáze: | OpenAIRE |
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