Adsorption Method for the Remediation of Brilliant Green Dye Using Halloysite Nanotube: Isotherm, Kinetic and Modeling Studies.

The first-ever use of halloysite nanotube (HNT), a relatively low-cost nanomaterial abundantly
available with minor toxicity for removing brilliant green dye from aqueous media, is reported.
The factors affecting adsorption were studied by assessing the adsorption capacity, kinetics, and
equilibrium thermodynamic properties. All the experiments were designed at a pH level of around
7. The Redlich-Peterson isotherm model fits best amongst the nine isotherm models studied. The
kinetic studies data confirmed a pseudo model of the second order. Robotic investigations propose
a rate-controlling advance being overwhelmed by intraparticle dispersion. The adsorbent features
were interpreted using infrared spectroscopy and electron microscopy. Process optimization was
carried out using Response Surface Methodology (RSM) through a dual section Fractional Factorial
Experimental Design to contemplate the impact of boundaries on the course of adsorption. The
examination of fluctuation (ANOVA) was utilized to consider the joined impact of the boundaries.
The possibilities of the use of dye adsorbing HNT (“sludge”) for the fabrication of the composites
using plastic waste are suggested.