当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES期刊下所有文献 > Role of functional groups in the production of self-assembled microfibrillated cellulose hybrid frameworks and influence on separation mechanisms of dye from aqueous medium.

Role of functional groups in the production of self-assembled microfibrillated cellulose hybrid frameworks and influence on separation mechanisms of dye from aqueous medium.

Abstract：

:In this article, the role of surface ζ-potential, surface charge density of functional groups and available surface functional groups (-OH and -COO-) of microfibrillated cellulose (MFC) was explored in the production of self-assembled dimensional frameworks. Furthermore, 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) oxidation of MFC and in situ TEMPO functionalization of produced frameworks were performed. The effect of increased charge density of carboxylic groups (-COO-) and decrease in surface ζ-potential on binding of titanium dioxide (TiO2) and horseradish peroxidase (HRP) was investigated further. High binding of TiO2 and HRP was reported due to high density of carboxylic group (-COO-) on produced functional frameworks. Thereafter, a model water of Irgalite Violet NZ dye was targeted to understand the behavior of available functional groups and introduced surface ζ-potential of frameworks towards adsorption of dye. Possible size-exclusion of dye aggregates was also explored using neat-MFC frameworks. Photo-oxidation (TiO2) and enzymatic catalysis (HRP) were studied further and highly effective system towards dye degradation was reported. Lastly, this study has shown a well deliberated quantitative understanding of functional groups/their density responsible for the production of frameworks and separation of dye.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Karim Z,Svedberg A,Ayub S

doi

10.1016/j.ijbiomac.2019.11.131

subject

Has Abstract

pub_date

2020-07-15 00:00:00

pages

1541-1552

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(19)35868-4

journal_volume

155

pub_type

杂志文章

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