Novel CuO/Mn3O4/ZnO nanocomposite with superior photocatalytic activity for removal of Rabeprazole from water

Abstract

In this work, a nanohybrid of CuO/Mn3O4/ZnO was generated through a simple hydrothermal based procedure. The CuO/Mn3O4/ZnO nanohybrid has been characterized using X-ray diffraction, transmission electron microscopy high resolution transmission electron microscopy, X-ray photoelectron spectroscopy, scanning electron microscopy and energy dispersive X-ray analysis. UV–visible spectrophotometry and photoluminescence techniques allowed evaluation of optical properties that additionally suggested the prevalence of strong interfacial interaction between the three moieties of the nanohybrid and suppressed electron–hole recombination. The hybrid photocatalyst brought on ~ 97.02 ± 1.15% disintegration of rabeprazole when illuminated with visible light. The progress of the photodegradation was in conformity with pseudo-first order kinetic model and had a velocity constant of 0.07773 min−1. Additionally, ~ 84.45% of total organic carbon removal was achieved while chemical oxygen demand was reduced by ~ 73.01%. Using high resolution liquid chromatograph mass spectrometry technique, identification of the degraded products was made and accordingly the mechanistic route of the aforesaid degradation was proposed.

Novel Copper-Zinc-Manganese Ternary Metal Oxide Nanocomposite as Heterogeneous Catalyst for Glucose Sensor and Antibacterial Activity

“…Because of their high surface area, biocompatibility, and excellent electrical and catalytic properties, Cu-Zn-Mn nanocomposites are proven to be highly efficient sensors [ 31 , 32 , 33 ]. Due to the compatible band structure and narrow bandgap of Cu, Zn, and Mn, they are highly useful for photocatalytic applications [ 34 ]. Several methods, such as biosynthesis, the hydrothermal route, and screen-printing, have been used to prepare the ternary nanocomposite [ 35 ].…”

Photocatalytic activity of CuO nanoparticles for organic and inorganic pollutants removal in wastewater remediation

“…Additionally, Raha et al [35] proposed the fragmentation pattern during the photocatalytic degradation of the pharmaceutical drug rabeprazole using CuO/Mn3O4/ZnO nanocomposite as illustrated in Figure 4.…”

Active removal of anionic azo dyes (MO,CR,EBT) from aqueous solution by potential adsorptive capacity of zinc oxide quantum dots

“…21,22 However, its use as an adsorbent is very rare; although some researchers have used it as an adsorbent, the size of their synthesized ZnO nanoparticle is large and their specific surface area is small, so it is difficult for the desired amount of dye to be adsorbed onto it. 23 The ZnO QDs synthesized in this work were of very small size (<10 nm), having large surface area, low cost and high point of zero charges (pH zpc ), and therefore were able to adsorb a very large amount of dyes. Besides these specific features, ZnO QDs also have a favorable electrostatic attraction to various anionic dyes.…”

“…According to the literature survey carried out for this research work, this specific metal oxide has extensively been used as a photocatalyst in degrading dyes and as an antibacterial agent 21,22 . However, its use as an adsorbent is very rare; although some researchers have used it as an adsorbent, the size of their synthesized ZnO nanoparticle is large and their specific surface area is small, so it is difficult for the desired amount of dye to be adsorbed onto it 23 …”