Enhanced photocatalytic degradation of organic dye by CeO 2 /CNT/GO hybrid nanocomposites under UV light for wastewater treatment.
Surjeet ChahalLakshita PhorAshok KumarSuresh KumarSandeep KumarRavi KumarParmod KumarPublished in: Environmental science and pollution research international (2023)
Development of nanocomposites as efficient photocatalysts for the removal of hazardous organic pollutants is always in dire demand due to increase in water pollution. In this article, a facile sol-gel method has been used to synthesize cerium oxide (CeO 2 ) nanoparticles followed by their decoration over multi-walled carbon nanotubes (CNTs) and graphene oxide (GO) to construct binary as well ternary hybrid nanocomposites using ultrasonic treatment. The oxygen vacancy defects have been depicted using X-ray photoelectron spectroscopy (XPS) that may result into improved photocatalytic efficiency. The ternary hybrid nanocomposites (CeO 2 /CNT/GO) showed excellent photocatalytic efficiency towards degradation of rose bengal (RB) dye up to 96.9% in 50 min. CNTs and GO provide the interfacial charge transfer which inhibits the electron-hole pair recombination. The results obtained here indicate that these composites can be effectively utilized as promising materials for the degradation of harmful organic pollutants for wastewater treatment.
Keyphrases
- visible light
- wastewater treatment
- reduced graphene oxide
- walled carbon nanotubes
- antibiotic resistance genes
- high resolution
- ionic liquid
- heavy metals
- gold nanoparticles
- dna damage
- perovskite solar cells
- dna repair
- electron transfer
- solar cells
- health risk assessment
- mass spectrometry
- human health
- magnetic resonance
- combination therapy
- drinking water
- quantum dots
- highly efficient
- electron microscopy
- replacement therapy
- metal organic framework