Synthesis of cobalt ferrite nanoparticles via chemical precipitation as an effective photocatalyst for photo Fenton-like degradation of methylene blue

2019 ◽  
Vol 172 ◽  
pp. 96-105
Author(s):  
Deniz Uzunoğlu ◽  
Memduha Ergüt ◽  
Pınar Karacabey ◽  
Ayla Özer
Keyword(s):  
Methylene Blue ◽  
Cobalt Ferrite ◽  
Chemical Precipitation ◽  
Ferrite Nanoparticles ◽  
Cobalt Ferrite Nanoparticles

Magnetically Retrievable Cobalt Ferrite Nanoparticles as Heterogeneous Catalyst for Synthesis of 1-Oxo-hexahydroxanthenes

2019 ◽  
Vol 4 (2) ◽  
pp. 113-120
Author(s):  
M.G. Kukade ◽  
N.L. Gavade ◽  
A.N. Kadam ◽  
W.B. Chandane ◽  
K.M. Garadkar ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Cobalt Ferrite ◽  
Low Cost ◽  
Chemical Precipitation ◽  
Significant Loss ◽  
Ferrite Nanoparticles ◽  
Precipitation Method ◽  
Cobalt Ferrite Nanoparticles ◽  
Morphological Studies ◽  
Catalytic Cycles

In present study, magnetically separable cobalt ferrite nanoparticles (CoFe2O4·NPs) have been prepared by low cost chemical precipitation method and reported as reusable, proficient heterogeneous catalyst for the synthesis of 1-oxo-hexahydroxanthenes among other ferrites. The structural and morphological studies by X-ray diffraction and scanning electron microscopy confirmed the formation of CoFe2O4 nanoparticles. The current protocol evaluated a proficient catalyst for reaction between various salicylaldehydes and 1,3-diketones. The ambient reaction conditions, shorter reaction time, good to excellent yields of the products, ease of purification of the products and reusa-bility of catalyst up to five catalytic cycles without significant loss of catalytic activity making the current protocol promising for its practical application.

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