Photo-catalytic dye degradation of methylene blue by using ZrO2/MWCNT nanocomposites

Abstract

Photocatalytic degradation of the dyes was deliberated by altering the catalyst and dye concentrations. The Zirconium oxide/Multiwall carbon nanotube (ZrO2/MWCNT) catalyst was facilely synthesized by a hydrothermal synthesis method. The nanocomposite ZrO2/MWCNT was formed in hydrothermal condition 95 °C of low growth temperature. The physico-chemical properties were successfully characterized using X-ray diffraction, (XRD) Scanning Electron Microscope (SEM), Energy dispersive Spectroscopy (EDS), Dynamic light scattering (DLS) analysis, X-ray photoelectron spectroscopy (XPS). The presence of Orbicular shaped ZrO2 nanocrystallines and Multiwall carbon nanotube was characterized by XRD pattern shows the presence of ZrO2 and MWCNT with the 2θ peaks at 19.62, 22.5 & 30.2. The thermal behavior of the ZrO2/MWCNT partials was also investigated by differential thermal analysis, and their vibrational bands were identified by infrared spectroscopy. The photo catalytic degradation of methylene blue in industrial wastewater was observed under UV light irradiation using the synthesized ZrO2/MWCNT as catalyst. The results revealed that the ZrO2/MWCNT nanoparticles exhibited high degeneration with COD and TOC reducing from 241 mg/L and 148.00 mg/L to 2.34 mg/L and 1.26 mg/L respectively with the efficiency of 90–94% over 25–60 min duration of UV irradiation time. In comparison with the pristine Zirconium Oxide and MWCNT, the composite ZrO2/MWCNT nanoparticles exhibited more efficient, the durable and stable photo-catalytic activity during experiments.

Porous Zinc Oxide and Functionalized Multiwalled Carbon Nanotubes Composite as Electrode Material for Enhanced Electrochemical Sensing of an Anticancer Drug, Dasatinib

“…The ZnO NPs, f-MWCNT and ZnO@f-MWCNT have an average particle size of 78.2, 83.1 and 92.9 nm, which are in good agreement with reported values. 44,45 The zeta potential defines colloidal stability and is a typical measurement of the surface charge of a particle. Zeta potential analysis was performed for ZnO NPs (a), f-MWCNT (b) and ZnO@f-MWCNT (c) and the corresponding results are displayed in Fig.…”

Synthesis and Characterization of Zirconium Oxide Nanoparticles Based on Hemidesmus Indicus Extract: Evaluation of Biocompatibility and Bioactivity for Prosthetic Implant Coatings

“…8 Zirconium oxide has also exhibited significant potential in various areas, including adsorption, photo-degradation, antimicrobial activity, and structural reinforcement. 9,10 A multitude of studies has highlighted the versatility of zirconium oxide nanoparticles (ZrO 2 NPs), which have been employed as biosensors, anticancer, antimicrobial, and antioxidant agents, as well as in implant applications. 11,12 The unique physicochemical properties of ZrO 2 NPs make them particularly apt for biomedical applications.…”