The Potential of rGO@TiO2 Photocatalyst for the Degradation of Organic Pollutants in Water

Abstract

The availability of clean water is essential for humans wellbeing and the diverse biotic population in the environment. Menkind imposes a significant pressure on food supplies, natural resources, and other commodities. Large-scale anthropogenic activities, such as agriculture and industry, which are practiced to ensure population growth and survival, have caused several harmful environmental effects, including the discharge of pollutants into the aquatic environment. Among them organic micropollutants (OMPs) are considered a significant threat to aquatic ecosystems. The efficient removal of this persistent pollutants from wastewater is nowadays commonly considered in water treatment technologies. Utilizing photocatalysis by harvesting solar energy as an inexhaustible source, represents a facile and easy to upscale solution, for removing persistent pollutants and other emerging contaminants. In the recent decade, graphene-based titanium dioxide catalyst (rGO@TiO2) has received a lot of attention as an effective material for the degradation in the enviroment. This review summarizes the recent progress in preparing rGO@TiO2 nanocomposites and their utilization for purification purposes. Its main advantage over many other photocatalysts is its easy preparation, low toxicity, and reasonable photo-activity in a specific solar light spectrum.

In Situ Electrochemical Development of Highly Charged TiO 2 -NPs Nanoparticles Decorated With Reduced Graphene Oxide For The Detection of Trace Chloroquine In Contaminated Human Urine And Serum Samples

“…TiO2 NPs were identified by using the Xray diffraction (XRD) technique to characterize the modified glassy carbon electrode paste (NPs TiO2@RGO/GCE), as shown in The obtained nanocomposites XRD pattern results reveal a highly crystalline TiO2 structure, no precursor-or reagent-related impurity peaks, and the absence of GO diffraction peaks in the prepared TiO2/rGO composite, which shows that the GO has been effectively reduced and that there is stacking between the graphene sheets. These structural characterizations support the conclusion that the hydrothermal method used to immobilize TiO2 on rGO was successful [48,49] . The a and c axes are followed by a high number of (TiO2) crystals.…”

Enhancement of the photocatalytic activity of rGO/NiO/Ag nanocomposite for degradation of methylene blue dye

“…In continue, these and ˙OH radicals react with MB dye molecules (RH) to degrade them into non-hazardous compounds. 50,51 The reactions involved in the rGO/NiO x /Ag photocatalysis with the presence of MB molecules are given as follows:˙OOH + ˙OOH → H 2 O 2 + O 2 h + (VB) + H 2 O → ˙OH + H + h + (VB) + OH → ˙OH˙OH + RH → R˙ + H 2 O…”

Harnessing the power of MXenes: a comprehensive exploration of their photocatalytic potential in mitigating hazardous dyes and CO2 reduction

“…With over 10,000 colors used across various applications in the industrial sector, synthetic colors are reported to be produced in substantial quantities, reaching an annual total of 30,000 tons [36]. Numerous synthetic dyes possess carcinogenic properties, posing a threat to human health, while their ability to reduce light permeability into water bodies negatively impacts algae and other aquatic life [37]. In human biology, dyes can adversely affect enzyme levels such as gamma-glutamyl transferase and alkaline phosphatase, impacting the liver and the central nervous system.…”