Detailed investigation of the catalytic abilities and adsorption curves of Banana peel with Nanodendrite Silver Nanoparticles for Wastewater purification

Abstract

In this investigation, banana peel extract (Musa cavendish) (BPE) was used to produce silver nanoparticles. The paper presents a green method for the synthesis of silver nanoparticles from bananas. In this all-natural synthesis, biodegradable silver nanoparticles were produced using BPE as a reducing agent. The addition of the aqueous banana peel extract to the silver nitrate solution caused a change in the colour of the reaction medium from pale yellow to brown, indicating the reduction of silver ions to silver nanoparticles. The SPR band increases with increasing concentration. Further analysis of the AgNPs was carried out using XRD, FTIR and SEM techniques. XRD was used to determine the crystalline nature and purity of the silver nanoparticles produced. The functional molecules responsible for the reduction and stabilisation of silver nanoparticles produced by banana peel extract were identified by FTIR analysis. The Langmuir adsorption isotherm showed that the adsorption takes place in a monolayer. The photocatalytic activity of the synthesised silver nanoparticles was tested by degrading methylene blue using the dried nanoparticles. It was found that the silver nanoparticles synthesised using green methods were effective in degrading the pollutant at different exposure times.