Solar-Driven Photobleaching of Lignocellulosic Biomass

Ramona Marina Grigorescu; Lorena Iancu; Rodica-Mariana Ion; Madalina Elena David; Sofia Slămnoiu-Teodorescu

doi:10.2478/bsmm-2024-0007

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Solar-Driven Photobleaching of Lignocellulosic Biomass

Scientific Bulletin of Valahia University - Materials and Mechanics

Volume 20 (2024): Issue 22 (April 2024)

By: Ramona Marina Grigorescu, Lorena Iancu, Rodica-Mariana Ion, Madalina Elena David and Sofia Slămnoiu-Teodorescu

Open Access

|May 2024

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.

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Articles in this issue

DOI: https://doi.org/10.2478/bsmm-2024-0007 | Journal eISSN: 2537-3161 | Journal ISSN: 1844-1076

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Language: English

Page range: 35 - 41

Published on: May 2, 2024

Published by: Valahia University of Targoviste

In partnership with: Paradigm Publishing Services

Publication frequency: 2 issues per year

Keywords:

lignocellulose biomass,

Related subjects:

Mechanical engineering,

Fundamentals of mechanical engineering,

Thermodynamics,

Bioengineering and biomedical engineering,

Biomaterials

© 2024 Ramona Marina Grigorescu, Lorena Iancu, Rodica-Mariana Ion, Madalina Elena David, Sofia Slămnoiu-Teodorescu, published by Valahia University of Targoviste
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 20 (2024): Issue 22 (April 2024)