Study on the preparation of nanosulfur/bentonite complex

TL;DR

This study develops a nanosulfur/bentonite composite with small particle size, aiming to enhance antifungal efficacy using a novel preparation method involving specific reaction conditions.

Contribution

It introduces a new method for preparing nanosulfur-bentonite composites with controlled particle sizes and optimized reaction parameters.

Findings

Nanosulfur particles are 20-30nm and 60-100nm in size.

Optimal reaction conditions were identified for synthesis.

The composite shows potential for antifungal applications.

Abstract

Inorganic compounds with sulfur have a good antifungal efficacy. However there is a limit, sulfur is required in bulk quantities for application. Nanosulfur might have a high anti-bacterial effect in a thin concentration. Nanosulfur-bentonite composite was prepared from nanosulfur made by the reaction between sodium thiosulfate and sulfuric acid and bentonite was used as a carrier. The most appropriate reaction temperature, concentrations of Na2S2O3 5H2O and H2SO4, dropping rate and stirring one were determined. From SEM images, it was illuminated that small particle size of nanosulfur deposited on bentonite is in the range of 20-30nm and big one is in the range of 60-100nm.