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Development of self-assembled nanocrystalline cellulose as a promising practical adsorbent for methylene blue removal

Tan, Kok Bing, Reza, Alavy Kifait, Abdullah, Ahmad Zuhairi, Amini Horri, Bahman and Salamatinia, Babak (2018) Development of self-assembled nanocrystalline cellulose as a promising practical adsorbent for methylene blue removal Carbohydrate Polymers, 199. pp. 92-101.

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Abstract

This study is focused on nanocrystalline cellulose (NCC) flakes for methylene blue (MB) removal via adsorption. NCC flakes exhibit a high adsorption capacity (188.7 mg/g fixed at 0.7 g/L adsorbent dosage, 25 °C and pH 6) compared to other nanomaterials, such as carbon nanotube and other cellulosic materials, such as coffee husks. Unlike NCC powder, it was observed that NCC flakes can be easily separated from wastewater containing MB. Further adsorption studies were conducted on NCC flakes, and it was found that 0.7 g/L was the optimum adsorbent dosage, which fitted well with the Langmuir Isotherm. The mean free energy value from Dubinin-Radushkevich isotherm was less than 8 kJ/mol. ΔGo values at different temperatures were within the -20 kJ/mol to 0 kJ/mol range. In conclusion, NCC flakes is a promising and practical ‘green’ nanomaterial that can be further developed for industrial applications.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Tan, Kok Bing
Reza, Alavy Kifait
Abdullah, Ahmad Zuhairi
Amini Horri, Bahmanb.aminihorri@surrey.ac.uk
Salamatinia, Babak
Date : 5 July 2018
DOI : 10.1016/j.carbpol.2018.07.006
Copyright Disclaimer : © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Nano crystalline cellulose; Self assembly; Promising green adsorbent; Separation; Adsorption
Depositing User : Clive Harris
Date Deposited : 12 Oct 2018 09:30
Last Modified : 06 Jul 2019 02:08
URI: http://epubs.surrey.ac.uk/id/eprint/849652

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