Fabrication of a novel magnetic CdS nanorod/NiFe2O4/NaX zeolite nanocomposite with enhanced sonocatalytic performance in the degradation of organic dyes

2020 ◽  
Vol 44 (20) ◽  
pp. 8386-8401 ◽  
Author(s):  
Meysam Sadeghi ◽  
Saeed Farhadi ◽  
Abedin Zabardasti

Herein, magnetically separable CdS nanorods (NRs)/NiFe2O4/NaX zeolite ternary nanocomposite was fabricated and applied for the enhanced sonocatalytic degradation of organic dyes.

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 44034-44049
Author(s):  
Meysam Sadeghi ◽  
Saeed Farhadi ◽  
Abedin Zabardasti

A magnetically separable NaY zeolite/MgFe2O4/CdS NRs/MoS2 NFs nanocomposite was successfully manufactured and utilized as a new sonocatalyst for the effective degradation of toxic organic dyes.


Author(s):  
Parmeshwar Lal Meena ◽  
Krishna Poswal ◽  
Ajay Kumar Surela ◽  
Jitendra Kumar Saini

Abstract The current study is focused on fabrication of a ternary metal oxide nanocomposite (ZnO/CuO/Ag2O) as an efficient and superior photocatalyst by step wise implanting of p-type of CuO and Ag2O semiconductors onto n-type of semiconductor (ZnO) via chemical method. The structural and textural characteristics of manufactured samples were characterized by X-ray diffraction (XRD), Fourier Transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy combine electron dispersive spectroscopy (FESEM-EDS) and UV-vis spectroscopy. The photocatalytic performance of the fabricated ternary nanocomposite was tested against the photocatalytic degradation of Crystal violet (CV) and Rhodamine B (RhB) organic dyes under solar light irradiation. The ternary nanocomposite demonstrated about 99.05% and 97.38% degradation efficiencies for CV and RhB dyes under solar light irradiation in a time period of 105 min. The calculated rate constants (k, min−1) for degradation under solar light over the ZnO/CuO/Ag2O nanocomposite were 4.26 and 3.61 times higher than the k value obtained over ZnO nanoparticles for CV and RhB dyes, respectively. The main reactive species taken part in the photodegradation processes were •OH and •O2− over ZnO/CuO/Ag2O photocatalyst under solar light illumination. Further the recycle experiments confirm good reusability and photo-stability of ZnO/CuO/Ag2O ternary nanocomposite.


RSC Advances ◽  
2020 ◽  
Vol 10 (54) ◽  
pp. 32845-32855 ◽  
Author(s):  
Abbasali Mokhtari Andani ◽  
Tayebeh Tabatabaie ◽  
Saeed Farhadi ◽  
Bahman Ramavandi

A magnetically separable MIL-101(Cr)/CoFe2O4 binary nanocomposite was prepared via a hydrothermal route and applied as a sonocatalyst for the efficient degradation of organic dyes.


RSC Advances ◽  
2020 ◽  
Vol 10 (17) ◽  
pp. 10082-10096 ◽  
Author(s):  
Meysam Sadeghi ◽  
Saeed Farhadi ◽  
Abedin Zabardasti

A novel magnetically separable CoFe2O4@Cr-MIL-101/Y zeolite ternary nanocomposite was prepared and applied as a sonocatalyst for efficient degradation of organic contaminants.


2017 ◽  
Vol 41 (19) ◽  
pp. 10568-10583 ◽  
Author(s):  
Aniket Kumar ◽  
Lipeeka Rout ◽  
L. Satish K. Achary ◽  
Sangram Keshari Mohanty ◽  
Priyabrat Dash

A novel GO–CuFe2O4–ZnO ternary nanocomposite has been designed as an efficient photocatalyst for the degradation of four toxic organic pollutants.


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