Journal of Mathematical and Fundamental Sciences
Vol. 52 No. 1 (2020)

Preliminary Studies of Cassava Leaves’ Ability to Remove Dyes from Water

Chairunnisa Chairunnisa (Department of Chemistry, Institut Teknologi Sumatera Jl. Terusan Ryacudu, Way Hui, Lampung Selatan, 35365 , Lampung)
Yuni Lisafitri (Department of Environmental Science, Institut Teknologi Sumatera, Jl. Terusan Ryacudu, Way Hui, Lampung Selatan, 35365 , Lampung)

Article Info

Publish Date
30 Apr 2020

Abstract

Low-cost adsorbents from cassava leaves (CLP) were prepared by simply washing the leaf powder with deionized water. The adsorption of methylene blue (MB) from the aqueous solution was measured in order to examine the adsorbent performance. The effect of the pH of the solution was studied by varying pH from 2 to 10. The kinetics of MB adsorption onto CLP followed the pseudo-second-order kinetic model with a k-value of 0.087907 g mg-1 min-1 and 0.094081 g mg-1 min-1 for CLP before and after washing, respectively. The adsorption isotherm for both adsorbents followed the Langmuir isotherm model with qm values of 178.5 mg g-1 and 243.9 mg g-1. The existence of disturber ions was investigated by adding NaCl into the MB solutions at a variety of concentrations.

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Journal Info
Journal of Mathematical and Fundamental Sciences
Website

Abbrev

jmfs

Publisher

Institut Teknologi Bandung

Subject

Astronomy Chemistry Earth & Planetary Sciences Mathematics Physics

Description

Journal of Mathematical and Fundamental Sciences welcomes full research articles in the area of Mathematics and Natural Sciences from the following subject areas: Astronomy, Chemistry, Earth Sciences (Geodesy, Geology, Geophysics, Oceanography, Meteorology), Life Sciences (Agriculture, Biochemistry, ...