Nanotechnology has shown interest in the utilization of agricultural byproducts as a source for nanostructured materials. Due to their distinctive chemical, thermal, mechanical, morphological, optical, and electrical properties, cellulose nanocrystals (CNCs) have often found utility in a variety of fields. Using sulphuric acid with a 64% weight-to-weight ratio, we managed to extract CNCs chemically from rice husks for the study and examined the effects of varying the hydrolysis period and synthesized composites on optical and thermal characteristics. The usual procedure for preparation was followed, but set the hydrolysis time for 40, 60 and 90 minutes, and also varied temperature at 40？C, 45？C and 50？C. Tonic water and silver nanoparticles were used to synthesize the composites at different ratios. The samples were characterized using UV-Vis spectroscopy, Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) techniques. From the results of this study, maximum absorption is observed to shift to shorter wavelengths with an increase in temperature, and the peak absorbance (maximum wavelength) generally increased with hydrolysis time at all three temperatures. The FTIR spectrum of cellulose nanocrystals (CNCs), AgNPs and their composites exhibited distinctive absorption bands indicative of their molecular structure and chemical composition. From the TGA findings, the two composites had a relatively low thermal stability, hence restricting their application to a fixed temperature and below. Additionally, this property makes the composite easily formable into intricate designs, which is ideal for use in optical components and sensors. The low melting point also facilitates recycling and reprocessing, enhancing sustainability by enabling the reuse of the material in various applications. Moreover, the composite’s sensitivity to temperature can be useful in temperature-sensing applications, where changes in its properties at lower temperatures can provide valuable optical feedback.
References
[1]
Sarkar, A.N. (2013) Promoting Eco-Innovations to Leverage Sustainable Development of Eco-Industry and Green Growth. European Journal of Sustainable Development, 2, 171-224.
[2]
Xu, S., Girouard, N., Schueneman, G., Shofner, M.L. and Meredith, J.C. (2013) Mechanical and Thermal Properties of Waterborne Epoxy Composites Containing Cellulose Nanocrystals. Polymer, 54, 6589-6598. https://doi.org/10.1016/j.polymer.2013.10.011
[3]
Roy, S. and Das, T.K. (2015) Plant Mediated Green Synthesis of Silver Nanoparticles. International Journal of Plant Biology & Research, 3, 1044-1055.
[4]
Ghosh, S.K. and Pal, T. (2007) Interparticle Coupling Effect on the Surface Plasmon Resonance of Gold Nanoparticles: From Theory to Applications. Chemical Reviews, 107, 4797-4862. https://doi.org/10.1021/cr0680282
[5]
Singh, S.S., Salem, D.R. and Sani, R.K. (2021) Spectroscopy, Microscopy, and Other Techniques for Characterization of Bacterial Nanocellulose and Comparison with Plant-Derived Nanocellulose. In: Das, S. and Dash, H.R., Eds., Microbial and Natural Macromolecules, Elsevier, 419-454. https://doi.org/10.1016/b978-0-12-820084-1.00018-1
[6]
Monnier, G.F. (2018) A Review of Infrared Spectroscopy in Microarchaeology: Methods, Applications, and Recent Trends. Journal of Archaeological Science: Reports, 18, 806-823. https://doi.org/10.1016/j.jasrep.2017.12.029
[7]
Agidi, R. (2021) Synthesis and Characterization of Iron Oxide from Clay Ore for Biomedical Applications. Ashesi University, 84 p. http://hdl.handle.net/20.500.11988/689
[8]
Zhong, Z., Peng, F., Ying, L., Yu, G., Huang, F. and Cao, Y. (2021) Ternary Organic Photodiodes with Spectral Response from 300 to 1200 nm for Spectrometer Application. Science China Materials, 64, 2430-2438. https://doi.org/10.1007/s40843-020-1639-x
[9]
Robinson, J., Binner, E., Vallejo, D.B., Perez, N.D., Al Mughairi, K., Ryan, J., et al. (2022) Unravelling the Mechanisms of Microwave Pyrolysis of Biomass. Chemical Engineering Journal, 430, Article ID: 132975. https://doi.org/10.1016/j.cej.2021.132975
[10]
Gałko, G. and Sajdak, M. (2022) Trends for the Thermal Degradation of Polymeric Materials: Analysis of Available Techniques, Issues, and Opportunities. Applied Sciences, 12, Article 9138. https://doi.org/10.3390/app12189138
[11]
Teh, J.S., Teoh, Y.H., How, H.G. and Sher, F. (2021) Thermal Analysis Technologies for Biomass Feedstocks: A State-of-the-Art Review. Processes, 9, Article 1610. https://doi.org/10.3390/pr9091610
[12]
Lu, S., Ma, T., Hu, X., Zhao, J., Liao, X., Song, Y., et al. (2021) Facile Extraction and Characterization of Cellulose Nanocrystals from Agricultural Waste Sugarcane Straw. Journal of the Science of Food and Agriculture, 102, 312-321. https://doi.org/10.1002/jsfa.11360
[13]
Kaabipour, S. and Hemmati, S. (2021) A Review on the Green and Sustainable Synthesis of Silver Nanoparticles and One-Dimensional Silver Nanostructures. Beilstein Journal of Nanotechnology, 12, 102-136. https://doi.org/10.3762/bjnano.12.9
[14]
Pavitha P.A., Suma Mahesh, S., Sumi, V.S. and Rijith, S. (2024) Insight to the Batch Reactor Design and Sorption Potential Profiling of Polymer Grafted Chitosan Embedded Silanated Halloysite for Th(IV) Recovery from Aqueous System. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 689, Article ID: 133646. https://doi.org/10.1016/j.colsurfa.2024.133646
[15]
Dai, H., Zhang, Y., Ma, L., Zhang, H. and Huang, H. (2019) Synthesis and Response of Pineapple Peel Carboxymethyl Cellulose-G-Poly (Acrylic Acid-Co-Acrylamide)/Graphene Oxide Hydrogels. Carbohydrate Polymers, 215, 366-376. https://doi.org/10.1016/j.carbpol.2019.03.090
[16]
Frone, A.N., Batalu, D., Chiulan, I., Oprea, M., Gabor, A.R., Nicolae, C., et al. (2019) Morpho-Structural, Thermal and Mechanical Properties of PLA/PHB/Cellulose Biodegradable Nanocomposites Obtained by Compression Molding, Extrusion, and 3D Printing. Nanomaterials, 10, Article 51. https://doi.org/10.3390/nano10010051
[17]
Dong, Y., Bi, J., Zhu, D., Meng, D., Ming, S., Guo, W., et al. (2019) Functionalized Cellulose with Multiple Binding Sites for a Palladium Complex Catalyst: Synthesis and Catalyst Evaluation in Suzuki-Miyaura Reactions. Cellulose, 26, 7355-7370. https://doi.org/10.1007/s10570-019-02568-w
[18]
Huang, C., Jiang, X., Shen, X., Hu, J., Tang, W., Wu, X., et al. (2022) Lignin-Enzyme Interaction: A Roadblock for Efficient Enzymatic Hydrolysis of Lignocellulosics. Renewable and Sustainable Energy Reviews, 154, Article ID: 111822. https://doi.org/10.1016/j.rser.2021.111822
[19]
Hafid, H.S., Omar, F.N., Zhu, J. and Wakisaka, M. (2021) Enhanced Crystallinity and Thermal Properties of Cellulose from Rice Husk Using Acid Hydrolysis Treatment. Carbohydrate Polymers, 260, Article ID: 117789. https://doi.org/10.1016/j.carbpol.2021.117789
[20]
Zhang, Z., Chen, K., Tang, K., Chen, K., Li, R., Sun, X., et al. (2023) Quinine-fabricated Surface-Enhanced Raman Spectroscopy Chiral Sensing Platform Enables Simultaneous Enantioselective Discrimination and Identification of Aliphatic Amino Acids. Analytical Chemistry, 95, 4923-4931. https://doi.org/10.1021/acs.analchem.2c04839
[21]
Kambhampati, P. (2021) Nanoparticles, Nanocrystals, and Quantum Dots: What Are the Implications of Size in Colloidal Nanoscale Materials? The Journal of Physical Chemistry Letters, 12, 4769-4779. https://doi.org/10.1021/acs.jpclett.1c00754
[22]
D’Acierno, F., Hamad, W.Y., Michal, C.A. and MacLachlan, M.J. (2020) Thermal Degradation of Cellulose Filaments and Nanocrystals. Biomacromolecules, 21, 3374-3386. https://doi.org/10.1021/acs.biomac.0c00805
