Electrogenerated iron supported on mesoporous titania nanoparticles for the photocatalytic degradation of 2-chlorophenol

Abstract

In this research, various weight loadings of Fe (3%, 5%, 7%, and 10%) supported on mesoporous titania nanoparticles (MTNs) were prepared using in-situ electrolysis before being characterised using X-ray diffraction, Fourier transform infrared, surface area analysis, UV evis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. The performance of the FeeMTN catalysts was investigated under visible light illumination based on the photocatalytic degradation of 2-chlorophenol. Among the catalysts, 3 wt% FeeMTN demonstrated the highest degradation (99%), followed by 10, 7, and 5 wt% with degradations of 71%, 58%, and 54%, respectively. It has been indicated that the addition of Fe into MTN has enhanced the photocatalytic performance by lowering the catalyst's band gap to improve its efficiency under visible light. The kinetic study has shown that the reaction followed a pseudo-first-order kinetic model and the catalyst remained stable with a slight decrease after five cycles of degradation. Furthermore, the catalyst illustrated a positive performance in photocatalytic degradation of phenolic derivatives.

Mesoporous titania nanoparticles as photocatalyst for degradation of 2-chlorophenol

“…Figure 1(A) shows the XRD patterns of P25 and MTN. A series of P25 and MTN at 25, 38, 39, 48, 54, 56 and 63 are consistent with peaks of TiO2 anatase [13]. However, P25 illustrates a series of XRD peaks for rutile at 28, 55 and 57.…”

Electrogenerated Copper Supported Zinc Oxide for Degradation of 2,4-Dichlorophenol

“…The electrochemical method has been described as a simple method that requires minimal reaction time [14]. Previously, we reported the ability of commercial ZnO (CZ) and MZ to photodegrade phenol.…”