Thermal conversion of pineapple crown leaf waste to magnetized activated carbon for dye removal

[Display omitted] •Pineapple crown leaf waste was used in the magnetized activated carbon preparation.•A microwave irradiation method was applied.•Effect of impregnation ratio to the magnetic property was discussed.•Prediction of isotherm models was proposed and compared. Pineapple crown leaf was su...

Full description

Saved in:
Bibliographic Details
Published in:Bioresource technology 2019-09, Vol.287, p.121426-121426, Article 121426
Main Authors: Astuti, Widi, Sulistyaningsih, Triastuti, Kusumastuti, Ella, Thomas, Gui Yanny Ratna Sari, Kusnadi, Rizky Yogaswara
Format: Article
Language:English
Subjects:
Adsorption
Biomass
Magnetic adsorbent
Methyl violet
Microwave irradiation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] •Pineapple crown leaf waste was used in the magnetized activated carbon preparation.•A microwave irradiation method was applied.•Effect of impregnation ratio to the magnetic property was discussed.•Prediction of isotherm models was proposed and compared. Pineapple crown leaf was successfully converted to the magnetized activated carbon (MAC) as an attractive solution to overcome separation problems. The activated carbon (AC) was produced by an innovative method combining KOH activation and microwave heating while the magnetization process was prepared by a co-precipitation method. In this sense, the activation stage was studied at different impregnation ratio. The resulted magnetic adsorbent was further tested its feasibility for methyl violet dye removal. The result shows that MAC consists of both micropores and mesopores with more oxygen-containing functional groups, indicating it can be used to remove dye from contaminated water. The increase of impregnation ratio led to an increase in the MAC porosity and a decrease in the magnetic property. The adsorption behavior of methyl violet dye onto MAC was well described by the Redlich-Peterson isotherm model.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2019.121426