Efficient synthesis of magnetically separable CoFe2O4@SiO2 nanoparticles and its potent catalytic applications for the synthesis of 5-aryl-1,2,4-triazolidine-3-thione derivatives

Journal of Water and Environmental Nanotechnology

ARTICLE

Pansambal, Shreyas¹  Ghotekar, Suresh²  Shewale, Sunil³  Deshmukh, Keshav¹  Barde, Nilesh⁴  Bardapurkar, Pranav¹ 

[1] D. J. Malpani Commerce & B. N. Sarda Science College;Department of Chemistry, Commerce and Science College;Ahmednagar College;Badrinarayan Barwale Mahavidyalaya

关键词: Magnetic nanoparticles;    CoFe2O4@SiO2;    Nanocatalyst;    Recyclable catalyst;    Magnetic Separation;   

DOI  :  10.22090/jwent.2019.03.001

学科分类：数学（综合）

来源: Iranian Environmental Mutagen Society

【 摘 要 】

Magnetically separable silica-coated cobalt ferrite (CoFe2 O4 @SiO2 ) magnetic nanoparticles (MNPs) were synthesized by sol-gel auto combustion method. Silica matrix was employed to minimize the agglomeration and coarsening of the MNPs. The structural and morphological properties of the asprepared nanocatalyst were investigated using XRD, EDX, TEM-SAED, FTIR, XPS, BET specific surface area and VSM techniques. Furthermore, these nanoparticles were used as an efficient nanocatalyst for simple, swift and one-pot synthesis of 5-aryl-1,2,4-triazolidine-3-thione derivatives. The reaction steps include imine formation, cyclization, condensation and aromatization without use of any oxidizing or reducing reagents. The present methodology offers remarkable merits like shorter reaction time, mild reaction conditions, excellent yield, simplicity, safer reaction pathway, easy workup and recyclable catalyst without any significant loss in catalytic activity and can be used for large scale synthesis. Hence, the present study describing the synthesis of CoFe2 O4 @SiO2 nanoparticles by efficient sol-gel auto combustion method followed by the investigation of potent catalytic activities may be useful for nanochemistry research opening a new arena in this field.

【 授权许可】

CC BY