Journal
CHEMOSPHERE
Volume 293, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2022.133540
Keywords
TiO2; Ce doping; Methylene blue; Rhodamine B; Visible light; Wastewater management
Categories
Funding
- UGC-SAP grant
- DST-FIST grant
- MHRD RUSA Phase II grant
- Deanship of Scientific Research at King Khalid University [R.G.P.2/22/42]
- PURSE grant
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Pristine and Ce doped TiO2 nanoparticles were fabricated to remove toxic pollutants from wastewater. The doping of Ce ions improved the surface roughness and reduced the particle size of the TiO2 photocatalysts. The 4% Ce-TiO2 catalyst exhibited higher efficiency and activity compared to pure TiO2, making it a potential candidate for efficient wastewater management.
Pristine and Ce doped TiO2 nanoparticles were fabricated for toxic pollutants removal from wastewater. Pristine, 2% Ce and 4% Ce doped TiO2 photocatalysts were produced via hydrothermal route. 4% Ce doped TiO2 exhibited 2.41 eV bandgap which is smaller than pure TiO2. The morphology was also investigated and it was established that doping of Ce ions enhanced the surface roughness and reduced the particle size. The surface area was characterized through BET analysis and 4% Ce-TiO2 possess higher surface with large pore diameter which helped the photocatalytic activity. The prepared photocatalysts were investigated on reduction of pollutants from wastewater under visible light. Higher efficiency was obtained for 4% Ce-TiO2 photocatalyst for both model pollutants. The k value possessed was also higher for the doped TiO2 catalyst. These analysis reports the optimum level of ceria doping to enhance morphology, surface area and it increased activity than bare TiO2. 4% Ce-TiO2 will be the potential candidate for efficient wastewater management. The 4% Ce doped TiO2 photo catalyst provided 77% and 88% on reducing MB and RhB dyes. The dopant has developed higher surface area, morphology and good recombination rate which reduced the toxic pollutants and changed the wastewater to reuse.
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