Open AccessModification of corn stalk using citric acid as biosorbent for methylene blue and malachite green
Author(s) -
Eny Yulianti,
Rada Shofa Mahmudah,
Susi Nurul Khalifah,
Agung Prasetyo,
Anastika Suri Irviyanti,
Ari Fithriya Romadhoni,
Guruh Prasetya Yudisputra
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/456/1/012015
Subject(s) - stalk , malachite green , methylene blue , adsorption , langmuir adsorption model , chemistry , citric acid , nuclear chemistry , food science , organic chemistry , horticulture , biology , catalysis , photocatalysis
corn stalks are effective adsorbent for methylene blue (MB) and malachite green (MG). In this research, we modified corn stalks used citric acid .The adsorption process of MB and MG by corn stalks illustrates the suitability of pseudo second-order. The Langmuir isotherm is also describe in the data on adsorption of MG. MB and MG adsorption on corn stalks was confirmed by infra-red (IR) spectroscopy and showed that the intensity peak 1734 cm −1 decreases. It indicated that the interaction between adsorbent and adsorbate involved the ester functional group.