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- Title
Investigations of most versatile MAl<sub>2</sub>O<sub>4</sub> (M=Zn, Mg, Ca) nanopowder advantageous as inexpensive, efficient photocatalyst against methyl blue dye.
- Authors
Ahlawat, Rachna; Goswami, Bindiya; Rani, Neelam; Chauhan, Meenal; Rani, Gita
- Abstract
We have fabricated the most versatile MAl2O4 (M=Zn, Mg, Ca) spinel nanopowder by citrate sol–gel method using ethylene glycol as a chelating compound. X-ray diffraction method has been employed to analyze the crystalline behavior of prepared nanopowders. The sample annealed at 800 °C indicates the cubic phase for zinc and magnesium aluminates while the monoclinic phase has been noticed for calcium aluminates. Structural parameters like d-spacing, lattice constant 'a', microstrain, stacking fault were evaluated for prepared nanopowders. The Debye–Scherrer formula is being used to calculate the prepared powder's crystallite size, which is further compared with the results of W–H analysis. Surface morphology and elemental composition were examined by SEM–EDS. Methyl blue dye has been selected for evaluating the degradation efficiency of aluminates under sunlight. The study reveals that ZnAl2O4 has the highest degradation efficiency (~ 98%) owing to its large surface area, optimum bandgap, and suitable nanocrystalline size.
- Subjects
SPINEL; CALCIUM aluminate; CHELATES; LATTICE constants; ETHYLENE glycol; CHELATING agents; CITRATES
- Publication
Applied Nanoscience, 2023, Vol 13, Issue 9, p6151
- ISSN
2190-5509
- Publication type
Article
- DOI
10.1007/s13204-023-02843-0