Work

Preparation and Characterization of the MMT@Fe 3 O 4 @Ag Nanocomposite for Catalytic Degradation of Methyl Yellow: Reaction Parameters and Mechanism Based on the Artificial Neuron Network

Year: 2024

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide The montmorillonite@iron oxide@silver (MMT@Fe 3 O 4 @Ag) nanocomposite, which is recyclable and exhibits high catalytic activity, was evaluated for the degradation of methyl yellow (MY), a carcinogenic azo dye. For this purpose, MMT@Fe 3 O 4 was first synthesized via the coprecipitation method and then Ag was doped to MMT@Fe 3 O 4 via the chemical reduction method. MMT, MMT@Fe 3 O 4, and MMT@Fe 3 O 4 @Ag were characterized by various techniques including scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, vibrating sample magnetometer, and thermal gravimetric analysis. The results illustrated that MMT@Fe 3 O 4 @Ag exhibited a higher catalytic ability than MMT@Fe 3 O 4 toward decolorization of MY with a degradation efficiency of 100% in 10 min at pH 7.1 in the presence of sodium borohydride (NaBH 4 ). Further, some parameters like the amount of NaBH 4, initial dye concentration, and pH were also studied to determine optimum reaction conditions. MMT@Fe 3 O 4 @Ag could be easily separated and recycled from the reaction medium using an external magnet. Thus, the Ag-doped MMT@Fe 3 O 4 nanocomposite proved to have good catalytic activity, high MY degradation rate and reusability, and easy separation and simple synthesis method. These properties make it a promising catalyst for the treatment of wastewater containing organic pollutants. In addition, artificial neural network (ANN) simulation, which is a mathematical model with an artificial intelligence algorithm, was used for the degradation process. This model was evaluated with the parameters used in the experiment as the input and output layers. Last, the degradation of MY with the synthesized catalyst into different products was demonstrated by high-performance liquid chromatography (HPLC) analysis.

Source: ACS Omega

DOI: 10.1021/acsomega.4c02497

Authors: Türkan Altun, Musa Kazım Acar, Ilkay Hilal Gubbuk

Institutions: Konya Technical University, Selçuk University

Language: English

Topic: Nanomaterials for catalytic reactions

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: gold

Estimated APC paid: $1,935