Removal of the methyl violet 2B dye from aqueous solution using sustainable adsorbent Artocarpus odoratissimus stem axis

Muhammad Raziq Rahimi Kooh,Muhammad Khairud Dahri,Linda B L Lim

doi:10.1007/s13201-016-0496-y

Muhammad Raziq Rahimi Kooh, Muhammad Khairud Dahri + Show 1 more

Open Access

https://doi.org/10.1007/s13201-016-0496-y

Copy DOI

Journal: Applied Water Science	Publication Date: Oct 26, 2016
Citations: 31	License type: open-access

Affiliation: Universiti Brunei Darussalam

Abstract

This study investigates the potential of the stem axis of Artocarpus odoratissimus fruit (TSA) as an adsorbent for the removal of methyl violet 2B (MV). The functional group analysis was carried out using Fourier-transform infrared spectroscopy. Investigation of the effects of pH and ionic strength provide insights on the involvement of electrostatic attraction and hydrophobic–hydrophobic attraction between the adsorbent and adsorbates. Kinetics models (pseudo-first-order, pseudo-second-order, Weber–Morris and Boyd) and isotherm models (Langmuir, Freundlich and Dubinin–Raduskevich) were used for characterising the adsorption process. The Langmuir model predicted a high qm of 263.7 mg g−1. Thermodynamics studies indicate the adsorption system is spontaneous, endothermic and physical sorption dominant. The spent adsorbent was successfully regenerated using water and obtained adsorption capacity close to the unused adsorbent even after fifth cycle of washing.

Highlights

Textile industry is a very high water intensive and a mill of production rate of 8000 kg per day of fabric utilise 1.6 million litres of freshwater with the dyeing section producing up to 15% of total wastes (Kant 2012)
This study investigates the potential of the stem axis of Artocarpus odoratissimus fruit (TSA) as an adsorbent for the removal of methyl violet 2B (MV)
This research aimed to investigate the usefulness of tarap stem axis (TSA) as a potential adsorbent for the removal of methyl violet 2B (MV)

Summary

Introduction

Textile industry is a very high water intensive and a mill of production rate of 8000 kg per day of fabric utilise 1.6 million litres of freshwater with the dyeing section producing up to 15% of total wastes (Kant 2012). A few common industrial wastewater remediation methods include ozonation, membrane filtration, adsorption (Kooh et al 2016b), ion-exchange (Naushad et al 2015) and phytoremediation (Kooh et al 2016c). The adsorption capacity of absorbents varied with the type of dyes. Carbonaceous materials such as carbon nanotube (Mittal et al 2016d) and activated carbon may be effective

Objectives

Methods

Results

Conclusion