Photocatalytic degradation of 4-chlorophenol over Ag/MFe₂O₄ (M = Co, Zn, Cu, and Ni) prepared by a modified chemical co-precipitation method: a comparative study

Abstract

In this study, MFe 2 O 4 (M= Zn, Cu, Co and Ni) nanoparticles were prepared to use a modified chemistry co-precipitation methods followed by annealing, respectively.Then, Ag/MFe 2 O 4 nanoparticles were synthesised via a wetness impregnation method. The structural properties of the samples were systematically investigated by XRD, SEM, TEM, EDX, DRS, BET, SPV and FT-IR techniques. The photocatalytic performances of the prepared MFe 2 O 4 and Ag/MFe 2 O 4 samples were comparatively studied by the photodegradation of 4-Chlorophenol under xenon lamp illumination in FTIR reaction cell. The photodegradation rate of 4-Chlorophenol in photocatalytic process was 90% on Ag/CoFe 2 O 4 sample. The cheap cost and easy synthesized process of the photocatalysts indicate a better potential for the thermal disposal of chlorophenols pollutants at lower temperatures.

Catalytic Properties of Phosphate-Coated CuFe2O4 Nanoparticles for Phenol Degradation

“…Phenol is one of the abundant hazardous pollutants in wastewater. Phenol was found to be teratogenic, toxic, highly persistent in the environment, and nonbiodegradable [4][5][6]. Once it is discharged into water bodies, it presents a threat to aquatic systems and its inhabitants as well as humans' health [7].…”

Characterization, Production and Microwave Absorbing Properties of Polyaniline-NiFe2O4: Tb Composites

“…MFe2O4 (M = Ni, Zn, Cu, Co, etc.) type spinel ferrites are discovered to be significant magnetic materials due to their physiochemical properties [3,4]. Among these spinel ferrites, NiFe2O4 is one of the most important soft magnetic ferrites due to its low anti-isotropic wave, chemical stability and low conductance [5,6].…”

Facile synthesis, morphological, structural, photocatalytic and optical properties of CoFe2O4 nanostructures

“…Synthetic dyes are one of the major toxic pollutants in wastewater, and hence, their removal from the waste effluents has gained importance [3]. Various methods such as filtration, adsorption, photocatalysis, chemical oxidation and biological treatments have been widely employed for the treatment of wastewater [4][5][6]. In the past decade, semiconductor photocatalysis driven by solar and visible light has emerged as one of the most promising and efficient methods for removing organic pollutants from wastewater because of its low cost and low energy consumption [7][8][9].…”