Preparation and Characterization of (Hyacinth plant / Chitosan) Composite as a Heavy Metal Removal

Taha Et Al

doi:10.21123/bsj.2019.16.4.0865

Abstract

In this study, the preparation and characterization of hyacinth plant /chitosan composite, as a heavy metal removal, were done. Water hyacinth plant (Eichhorniacrasspes) was collected from Tigris river in Baghdad. The root and shoot parts of plant were ground to powder. Composite materials were prepared at different ratios of plant part (from 2.9% to 30.3%, wt /wt) which corresponds to (30-500mg) of hyacinth plant (root and shoot) and chitosan. The results showed that all examined ratios of plant parts have an excellent absorption to copper (Cu (II)). Moreover, it was observed that 2.9% corresponds (30mg) of plant root revealed highest removal (82.7%) of Pb (II), while 20.23% of shoot removed 61% of Cd (II) within 24 hr. On the other hand, SEM images displayed a regular shape and high porosity of prepared samples, while FTIR spectra of composite materials showed the characteristic of raw materials bands, which give strong evidence of composite formation.

Highlights

Eichhorniacrassipes is a free perennial aquatic plant
The results showed the composite is successful in removing heavy metal compared with chitosan beads alone or powder parts of hyacinth plant alone
This was attributed to the unique hydrogen bonding from cellulose; lignin in present in root of hyacinth plant and high total dipole moment and chitosan could perform an attractive electrostatic interaction to deal with pb(ll),cu(ll), cd(ll) heavy metal

Summary

Introduction

Eichhorniacrassipes is a free perennial aquatic plant It results in a problem in many countries because of minimizing the oxygen level in water, reducing water circulation of water activities, hindrance, getting rid of fish and others [1]. It is a floating macrophyte, which hold large quantities of toxic metals; some of which are important for plant growth. Its advantages are low operating cost, effective in dilute solution, secondary waste, minimization, taking a short time period and have no toxicity limit for heavy metals. Removal of Pb(II), Cu (II) and Cd (II) by prepared composite was determined and optimized

Materials and Methods

Results and Discussions

Conclusion