Date: Tuesday, 25 June 2024
Time: 17:30 - 18:30 CEST
Session code 6BV.10
Processes for bio-based chemicals and materials 2
Adding Value to Lignocellulosic Biomasses Through the Production of Nanolignin and Nanocellulose
Short Introductive summary
The aim of the work was to develop an innovative approach for the simultaneous production of nanocellulose, and nanolignin from different lignocellulosic biomasses (hemp and coconut shell). Nanoparticles were produced via an alkaline pre-treatment approach applied to the two different lignocellulosic biomasses, followed by acid hydrolysis. In the alkali pre-treatment process optimization, some parameters were tested, namely time of reaction and temperature. Taking into consideration a scale up of the process, the time of 2.5h and temperature of 60ºC were chosen as optimum for the process. Bionanocomposites made from hemp and coconut shell NC and NL were incorporated in chitosan and some properties are being analysed: mechanical properties, thickness, optical properties (opacity and transparency), surface color, and solubility and swelling degree.
Presenter
Isabel COELHOSO
LAQV-REQUIMTE, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Chemistry Dpt.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
V.G.L. Sousa, INL, Braga, PORTUGAL
I. Coelhoso, Universidade Nova de Lisboa - Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica, PORTUGAL
H. Godinho, Universidade Nova de Lisboa - Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica, PORTUGAL
A.L. Fernando, Universidade Nova de Lisboa - Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica, PORTUGAL
Session reference: 6BV.10.9