Nanostructured Cellulose-Based Sorbent Materials for Water Decontamination from Organic Dyes
Nanostructured materials have been recently proposed in the field of environmental remediation. The use of nanomaterials as building blocks for the design of nano-porous micro-dimensional systems is particularly promising since it can overcome the (eco-)toxicological risks associated with the use of...
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doaj-f3e39ce1a2c64d2a9112f86f099880862020-11-25T03:36:41ZengMDPI AGNanomaterials2079-49912020-08-01101570157010.3390/nano10081570Nanostructured Cellulose-Based Sorbent Materials for Water Decontamination from Organic DyesLaura Riva0Nadia Pastori1Alice Panozzo2Manuela Antonelli3Carlo Punta4Department of Chemistry, Materials, and Chemical Engineering “G. Natta” and INSTM Local Unit, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, ItalyDepartment of Chemistry, Materials, and Chemical Engineering “G. Natta” and INSTM Local Unit, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, ItalyDepartment of Chemistry, Materials, and Chemical Engineering “G. Natta” and INSTM Local Unit, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, ItalyDepartment of Civil and Environmental Engineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, ItalyDepartment of Chemistry, Materials, and Chemical Engineering “G. Natta” and INSTM Local Unit, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, ItalyNanostructured materials have been recently proposed in the field of environmental remediation. The use of nanomaterials as building blocks for the design of nano-porous micro-dimensional systems is particularly promising since it can overcome the (eco-)toxicological risks associated with the use of nano-sized technologies. Following this approach, we report here the application of a nanostructured cellulose-based material as sorbent for effective removal of organic dyes from water. It consists of a micro- and nano-porous sponge-like system derived by thermal cross-linking among (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO)-oxidized cellulose nanofibers (TOCNF), branched polyethylenimine 25 kDa (bPEI), and citric acid (CA). The sorbent efficiency was tested for four different organic dyes commonly used for fabric printing (Naphthol Blue Black, Orange II Sodium Salt, Brilliant Blue R, Cibacron Brilliant Yellow), by conducting both thermodynamic and kinetic studies. The material performance was compared with that of an activated carbon, commonly used for this application, in order to highlight the potentialities and limits of this biomass-based new material. The possibility of regeneration and reuse of the sorbent was also investigated.https://www.mdpi.com/2079-4991/10/8/1570nanostructured materialssorptionorganic dyeswastewater treatmentnanocellulose |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Laura Riva Nadia Pastori Alice Panozzo Manuela Antonelli Carlo Punta |
spellingShingle |
Laura Riva Nadia Pastori Alice Panozzo Manuela Antonelli Carlo Punta Nanostructured Cellulose-Based Sorbent Materials for Water Decontamination from Organic Dyes Nanomaterials nanostructured materials sorption organic dyes wastewater treatment nanocellulose |
author_facet |
Laura Riva Nadia Pastori Alice Panozzo Manuela Antonelli Carlo Punta |
author_sort |
Laura Riva |
title |
Nanostructured Cellulose-Based Sorbent Materials for Water Decontamination from Organic Dyes |
title_short |
Nanostructured Cellulose-Based Sorbent Materials for Water Decontamination from Organic Dyes |
title_full |
Nanostructured Cellulose-Based Sorbent Materials for Water Decontamination from Organic Dyes |
title_fullStr |
Nanostructured Cellulose-Based Sorbent Materials for Water Decontamination from Organic Dyes |
title_full_unstemmed |
Nanostructured Cellulose-Based Sorbent Materials for Water Decontamination from Organic Dyes |
title_sort |
nanostructured cellulose-based sorbent materials for water decontamination from organic dyes |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2020-08-01 |
description |
Nanostructured materials have been recently proposed in the field of environmental remediation. The use of nanomaterials as building blocks for the design of nano-porous micro-dimensional systems is particularly promising since it can overcome the (eco-)toxicological risks associated with the use of nano-sized technologies. Following this approach, we report here the application of a nanostructured cellulose-based material as sorbent for effective removal of organic dyes from water. It consists of a micro- and nano-porous sponge-like system derived by thermal cross-linking among (2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO)-oxidized cellulose nanofibers (TOCNF), branched polyethylenimine 25 kDa (bPEI), and citric acid (CA). The sorbent efficiency was tested for four different organic dyes commonly used for fabric printing (Naphthol Blue Black, Orange II Sodium Salt, Brilliant Blue R, Cibacron Brilliant Yellow), by conducting both thermodynamic and kinetic studies. The material performance was compared with that of an activated carbon, commonly used for this application, in order to highlight the potentialities and limits of this biomass-based new material. The possibility of regeneration and reuse of the sorbent was also investigated. |
topic |
nanostructured materials sorption organic dyes wastewater treatment nanocellulose |
url |
https://www.mdpi.com/2079-4991/10/8/1570 |
work_keys_str_mv |
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