Photocatalytic Degradation of Naphthol Green B Dye Using Coupled CdS-ZnMoO4 in UV-A Light Irradiation.
J Nanosci Nanotechnol
; 21(3): 1526-1536, 2021 Mar 01.
Article
en En
| MEDLINE
| ID: mdl-33404416
At present, nanotechnology field development makes a major role in photocatalysis. CdS-ZnMoO4 (36.6 wt%) coupled nanophotocatalyst is synthesized using facile hydrothermal method. The CdSZnMoO4 catalyst shows superior photocatalytic activity in the Naphthol Green B (NGB) dye degradation in UV-A (365 nm) light irradiation. XRD analysis reveals the monoclinic structure of ZnMoO4, cubic structure of CdS. PL shows lesser the recombination (e--h+) rate of electron-hole pair formation. UV-Vis-DRS reveals an increase in absorption in entire visible region while loading with CdS. SEM images indicate that CdS-ZnMoO4 has nanofibrous structure. EDS reveal that Cd and S are present on the ZnMoO4 surface. ECM indicates the division of homogeneity in elements. SAED pattern of HR-TEM images proved high crystalline properties of the catalyst. XPS reveals the different oxidation states and term-symbols of Cd, S, Zn, Mo and O in this catalyst with corresponding binding energies. CdS-ZnMoO4 (18.5 m²g-1) has a higher surface area compared to ZnMoO4 (10.8 m²g-1). Current densities obtained from CV reveals the higher cyclic movement of electrons (electrochemical activity) of CdS-ZnMoO4. An effective parameters for photodegradability of NGB dye by CdS-ZnMoO4 was analyzed.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
J Nanosci Nanotechnol
Año:
2021
Tipo del documento:
Article
País de afiliación:
India
Pais de publicación:
Estados Unidos