Synthesis, Characterization, and Visible-Light-Driven Photocatalytic Evaluation of Nickel Selenide/Polypyrrole (NiSe/PPy) Composite for Tetracycline Degradation in Wastewater

Abstract

This huge works presents the preparation and evaluation of the photocatalyst Nickel Selenide with Polypyrrole (NiSe/PPy), which is basically used for the photocatalytic degradation of Tetracycline use as pollutant, a common antibiotic found in wastewater treatment. When antibiotics are not properly ready, they enter aquatic(under water in biological world) systems, stimulating the emergence of antibiotic-resistant bacteria in bio-world. Conventional wastewater treatment plants often fail that totally remove these contaminants, allowing them to endure in the environment and the differential climate system. The NiSe/Polypyrrole composite catalyst was synthesized in normal heat condition which basically co-precipitation process it’s not a hydrothermal process to heat up to above 200 degree centigrade. It was characterized by techniques such as X-Ray Diffraction (XRD),Field emission Scanning Electron Microscopy (FE-SEM), and Fourier Transform Infrared Spectroscopy (FTIR), among others. The inclusion of conductive Polypyrrole enhances charge separation and light absorption, improving photocatalytic efficiency. The general procedure for photocatalytic degradation involved exposing the catalyst hydrogel beads to LED (visible) light. Experiments were conducted to assess the impact of tetracycline concentration, co-ions, and reaction time on degradation performance. In these studies, the NiSe/PPy composite demonstrated high efficiency, achieving up to 82% tetracycline degradation, confirming its potential for wastewater treatment application.