We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Catalytic Decolorization of Rhodamine B, Congo Red, and Crystal Violet Dyes, with a Novel Niobium Oxide Anchored Molybdenum (Nb–O–Mo).
- Authors
Kadam, Rahul L.; Kim, Yeonhee; Gaikwad, Sanjit; Chang, Mincheol; Tarte, Naresh H.; Han, Sangil
- Abstract
In this work, a new metal-to-metal charge transfer (MMCT) heterogeneous catalyst (Nb–O–Mo) was synthesized by a chemical grafting method under an inert atmosphere. The activity of the covalently anchored oxo-bridged Nb–O–Mo catalyst was estimated for decolorization of Rh B, congo red, and crystal violet dyes in an aqueous solution under fluorescent light. The catalyst was characterized via X-ray diffraction, scanning electron microscopy with energy-dispersive X-ray spectrometer, Fourier-transform infrared, and FT-Raman. The catalytic decolorization was evaluated from the UV spectra of dyes in aqueous solution by changing different factors, including dye concentration, temperature, and catalyst loading. Decolorization percentages were 83%–89%, 86%–95%, 97%–99% for Rh B, Congo Red and Crystal Violet in 1 min at 298 K, showing the best performance among other catalysts. Decolorization efficiency for 50 ppm of Rh B was improved from 92% to 98%, with a temperature increase to 318 K.
- Subjects
GENTIAN violet; NIOBIUM oxide; AZO dyes; RHODAMINE B; MOLYBDENUM oxides; HETEROGENEOUS catalysts; X-ray spectrometers
- Publication
Catalysts (2073-4344), 2020, Vol 10, Issue 5, p491
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal10050491