Solar-Driven Photobleaching of Lignocellulosic Biomass-Reference-Cited by-同舟云学术

Solar-Driven Photobleaching of Lignocellulosic Biomass

Published:2024-04-01 Issue:22 Volume:20 Page:35-41
ISSN:2537-3161
Container-title:Scientific Bulletin of Valahia University - Materials and Mechanics
language:en
Short-container-title:

Author:

Grigorescu Ramona Marina¹,Iancu Lorena¹,Ion Rodica-Mariana¹²³,David Madalina Elena¹,Slămnoiu-Teodorescu Sofia⁴

Affiliation:

1. National Institute for Research & Development in Chemistry and Petrochemistry - ICECHIM, Research Group Evaluation and Conservation of Cultural Heritage , 202 Splaiul Independentei, 060021 , Bucharest , Romania .

2. Valahia University of Targoviste , Doctoral School of Materials Engineering , 13 Aleea Sinaia, 130004, Targoviste , Romania .

3. Polytechnic University of Timisoara , Architecture and Urbanism Dept ., 2/A Traian Lalescu , , Timisoara, Jud. Timis , Romania .

4. Valahia University of Targoviste , Faculty of Materials Engineering and Mechanics , 13 Aleea Sinaia, 130004, Targoviste , Romania .

Abstract

Abstract Lignocellulose material is the main natural resource for the pulp and paper industry, and for its application the material should have a degree of whiteness as high as possible. For this reason, different bleaching treatments were applied during time. In this paper, the photobleaching induced by solar light of a lignocellulosic biomass using NaClO was studied. The colorimetric measurements, UV spectra absorption, and FTIR spectra changes are evaluated and discussed in this paper. The changes of L*a*b parameters can be considered a proof of the reactions generated by hypochlorite radicals during solar light exposure, leading to a biomass whitening.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/bsmm-2024-0007

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