2D–3D graphene-coated diatomite as a support toward growing ZnO for advanced photocatalytic degradation of methylene blue

Abstract

In this work, a diatomite@graphene@ZnO (ZGD) photocatalyst was synthesized by chemical vapor deposition and hydrothermal methods and used for the photocatalytic degradation of methylene blue.

Active Packaging Material Based on Immobilized Diatomaceous Earth/Zinc Oxide/High-Density Polyethylene Composite for Sea Food and Products

“…Raw DE ( Figure 1 A) has skeleton structures and pores ranging from 5 to 15 μm, similar to those of diatom algae; the diameters of the pores varied between 200 and 460 nm. Owing to the nanometric proportion and morphological structure inherent in DE, this material is a potential choice for antibacterial applications as a host for ZnO particles [ 33 , 34 ]. The TEM micrographs, as well as the EDS of the synthesized DE/ZnO composite, are shown in Figure 1 B,C.…”

Electrocatalytic and photocatalytic activity of CuTiO3 perovskites for complete degradation of methylene blue under sunlight irradiation

“…The outcome shows that after 60 minutes of exposure to sunlight, a dosage of 20 mg of 0.20 M CuTiO 3 photocatalyst at natural pH and a starting MB dye solution concentration of 20 ppm was set for future investigation. 33…”

“…The outcome shows that after 60 minutes of exposure to sunlight, a dosage of 20 mg of 0.20 M CuTiO 3 photocatalyst at natural pH and a starting MB dye solution concentration of 20 ppm was set for future investigation. 33 3.9.4 Effect of solution pH and PZC. pH of the solution is an important factor for the generation of proton and the hydroxyl radicals, in the degradation of MB dye.…”

Carbon nitride- and graphene-based materials for the photocatalytic degradation of emerging water pollutants

“…Therefore, the existence of graphene can function as an intermediary for electrons, impeding the recombination process and leading to the heightened generation of free radicals, which are responsible for breaking down MB, improving the degradation efficiency of MB. 121…”