Kinetic Study on Mutagenic Chemical Degradation through Three Pot Synthesiszed Graphene@ZnO Nanocomposite

Abstract

The study was taken up with the objective to synthesize graphene-zinc oxide nano particles (NPs) nanocomposite (Gr@ZnO-Nc) via In-situ synthesis method. The structural, optical, thermal, electrical and photocatalytic properties of the synthesized Gr@ZnO-Nc were studied. The characterization data confirmed that the ZnO NPs were successfully incorporated into the graphene sheets. Further, TGA/DTA results exhibited an enhanced thermal stability of the Gr@ZnO-Nc compared with the graphene. The Gr@ZnO-Nc, graphene sheets were uniformly wrapped by ZnO NPs, which can protect graphene and delay their oxidation in air. The synthesized Gr@ZnO-Nc was used for the efficient photodegradation of a carcinogenic methyl orange (MO) dye. The results exhibited promising photodegradation of the MO dye under UV light irradiation through the production of reactive oxygen species (ROS). The promising effect of Gr@ZnO-Nc on the photodegradation properties was conferred by the large surface area which increased adsorption capacity, and the strong electron transfer ability. Thus, it is encouraging to conclude that the synthesized Gr@ZnO-Nc has environmental significance with its utility in remediation in the hazardous MO dye.

Synthesis and Characterization of Graphene Oxide/Zinc Oxide (GO/ZnO) Nanocomposite and Its Utilization for Photocatalytic Degradation of Basic Fuchsin Dye

“…Shoeb et al. calculated E g values of graphene‐ZnO nanocomposite and neat ZnO nanoparticles as 3.36 ± 0.1 and 3.65 eV, respectively . Yavariet al.…”

Graphene‐mesoporous anatase TiO2 nanocomposite: A highly efficient and recyclable heterogeneous catalyst for one‐pot multicomponent synthesis of benzodiazepine derivatives

“…In continuation of our previous work , herein we report, the comparative study of mesoporous TiO 2 NPs and graphene‐mesoporous TiO 2 nanocomposites (Gr@TiO 2 NCs) as a catalyst. Both the catalyst were synthesized through wet chemical route.…”

“…GO was synthesized by the oxidation of natural graphite powder (20 μm mesh, Sigma Aldrich) according to the modified Hummers method and in continuation of our previous work, herein we report with a modification in the absence of NaNO 3. Typically, graphite powder (1.0 g) was added to concentrated H 2 SO 4 (30 ml) under stirring in an ice bath. Under vigorous agitation, KMnO 4 (4.0 g) was stepwise added (1gm at an interval of 10 minutes) slowly to keep the temperature of the suspension lower than 20 °C.…”

“…These types of fascinating properties instigate tremendous enthusiasm from different research field photocatalyst as an environmental remediation and catalyst activity both of which are the smoking issue of the modern society . Especially in the catalyst research, graphene oxide has a promising candidature as a precursor to synthesize graphene in the solution form due to its inexpensive, consequently, improve its ability as well as processability to fabricate along with different material such as metal nanoparticle, metal oxide nanoparticle, and polymer etc …”

Graphene/Nickel Oxide-Based Nanocomposite of Polyaniline with Special Reference to Ammonia Sensing

“…To prepare the Pani/GN nanocomposite, GO (20 mg) was prepared in accordance with the existing literature 37 and was then dissolved in 10 mL of 1 M H 2 SO 4 with constant stirring for 1 h. Subsequently, aniline solution (10 mmol) prepared in 1 M H 2 SO 4 was mixed to the GO solution and stirred for another 1 h. The APS (30 mmol) solution prepared in 1 M H 2 SO 4 was then added to the above solution. The final reaction mixture was kept under constant stirring, followed by a conventional microwave treatment at 300 W for 30 min.…”