The present invention aims to provide a method for preparing a bio-based material that includes extracting celluloses from lignocellulosic biomass and regenerating a cellulose film. After that, preparing a metal-graphene oxide nano-composite and subsequently mixing the metal-graphene oxide nanocomposite into the cellulose film solution to form an interaction mixture. Subsequently, the interaction mixture is coagulated in a nonsolvent coagulant, and a highly porous structure of a cellulose membrane is regenerated.
INSPIRATION OF THE INVENTION
Utilize kenaf core cellulose by dissolving it in the alkali/urea system using a pre-cooling method, which is environmentally friendly. Green chemicals using alkali/urea (NaOH/urea and LiOH/urea) solvents is a green process and low cost. It offers an inexpensive and less toxic system as compared to other solvents developed previously.
PROBLEM STATEMENT & CURRENT ISSUES
Cellulose is easily dissolved in various solvents such as LiCl/N,N-dimethylacetamide (DMAc), N-methylmorpholine-N-oxide (NMMO) ionic liquids at high temperatures. However, an alternative green solvent of alkali/urea can easily dissolve cellulose at a pre-cooled temperature of -13°C. Therefore, cellulose was extracted from the kenaf core and dissolved in an alkali/urea solution. The dissolved cellulose was then modified with a crosslinking agent to form cellulose hydrogel and functionalized with graphene oxide, polyvinyl alcohol, and magnetite to form a regenerated cellulose product for high-end applications.
INVENTIVENESS & NOVELTY
Embodiments of the present invention relate to preparing cellulose-based material and more particularly to a method of preparing cellulose-based material from lignocellulosic biomasses and a method of preparing hydrogel from the lignocellulosic biomasses. Further, the method is inexpensive, efficient and environmentally friendly.
USEFULNESS & APPLICATION
- Absorption material: wastewater treatment, sanitary, hygienist used, absorption towel, etc
- Hydroponic plant
- Biotechnology – genetic growth flower (Sta-Green Moisture Max)
- Control- and slow-release fertilizer and water uphold
IMPACT OF THE PRODUCT
- Plantation for water holding materials/fertilizer
- Sanitary and hygienist: diapers, absorbance sheets (hospital use) etc.
- Plant pot and decorations
TRL : 5
Project Leader : Prof. Dr. Sarani Zakaria
Co-Researcher : Prof. Madya Dr. Chia Chin Hua, Dr. Hatika Kaco
Dept./Fac./Inst : Applied Physics
Expertise : Lignocellulose composite, pulp and paper, biorefinery, nanotechnology, cellulose derivatives and regenerated products, bioresin
Bio-Phenolic Elastomer Composite
The invention includes a process for producing bio-based phenolic resin from oil palm biomass and steps for fabrication of fibre reinforced bio-phenolic and bio-phenolic-epoxidized natural rubber composites.