Developing Ecofriendly Nano-Particulate Adsorbents using lron-Plant Polyphenols, Understanding the Molecular Properties and their Environmental Applications
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Date
2022
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Abstract
Removing pollutants using adsorbents made from natural ingredients is an exciting proposition from the standpoint of
their cost-effectiveness and safety. Polyphenols are a class of chemicals widely distributed in leaves, seeds, and
other parts of plants. They are known for their health benefits and antioxidant properties. Two iron(lll) based new
materials were synthesized from tannic acid (tttlat-1) and guava leaf extract (Mat-2) in -10 g scale under identical
conditions. The physical properties, surface properties, and chemical properties of all three materials were analyzed
using FESEM, FETEM, DLS, BET, pHzpc, CHNS analysis, Magnetic susceptibilities, EPR, XPS, Mass analysis,
TGA, PXRD, FTIR. The results of FESEM and TEM showed the materials as clusters of nano-sized particles. The
adsorbent properties of the materials were tested with anionic fluoride and cationic dyes. The biosafety of Mat-1 and
Mat-2 was checked on mung beans (Vrgna radiata) and on a number of bacteria.
Description
Supervisors: Ray, Manabendra and Chakraborty, Saswati
Keywords
Plant Polyphenol, lron-polyphenol Complexes, Methylene Blue, Fluoride, Phytotoxicity, Antimicrobial Activity