Synthesis of SiO2/CoFe2O4 Nanoparticles Doped CMC: Exploring the Morphology and Optical Characteristics for Photodegradation of Organic Dyes

Abstract

The present work deals with enhanced structural and optical studies of silicon oxide (SiO2)–cobalt ferrite (CoFe2O4) nanoparticles doped carboxymethyl cellulose (CMC) to use in a photo-degradation of organic dyes pollutants for first time with low cost and excellent activity. The structural characteristics included of FTIR analysis and images microscope. The optical characteristics were measured using a VU spectrophotometer which included absorption spectra recording then optical parameters calculations. The optical characteristics results indicated to the absorbance of CMC increased about 93.1% when reached the SiO2–CoFe2O4 NPs content to 4.5 wt% at λ\u2009=\u2009500 nm. The energy band gap of polymer decreased from 5.2 to 4.8 eV. The optical parameters of CMC enhanced with rising of the SiO2-CoFe2O4NPs ratio. The photo-degradation property was investigated under solar light for methyl orange (MO). The results showed that the photo-degradation of CMC was enhanced from 13.99 to 45.73% by adding of SiO2–CoFe2O4 NPs. Finally, the results indicated that the CMC/SiO2–CoFe2O4 nanocomposites have good photo-degradation for organic pollutants with low concentration of nanoparticles, short irradiation time and inexpensive.