OBTAINING A LIGNIN-SILICA COMPOSITE FROM RICE HUSK AND INVESTIGATING ITS ADSORPTION PROPERTIES
Abstrak
The processing of agricultural waste (specifically rice husks) to produce high-value functional materials is a priority area within green chemistry and the circular economy. The natural presenc of a cellulose, hemicellulose, lignin, and silicon dioxide (SiO2) complex in rice husks provides a vast raw material base for the cost-effective production of lignocellulosic composites. Utilizing these composites in modern technologies—particularly as effective sorbents for wastewater treatment and in environmentally friendly battery manufacturing and recycling processes—is a matter of significant importance.
Iqtiboslar
Law of the Republic of Uzbekistan. "On Waste." – Tashkent, 2002. (Or latest revisions).
Salikhova, M. S., et al. Scientific and practical foundations of agricultural waste processing. — Tashkent: Fan va texnologiya, 2021.
Ahmmad, A., et al. "Extraction of silica and lignin from rice husk and their applications in composite materials." Journal of Cleaner Production, vol. 252, 2020, p. 119850.
Sharma, N., & Kumar, V. "Green synthesis of lignocellulose-silica hybrid composites from agro-industrial wastes for heavy metal removal." Carbohydrate Polymers, vol. 229, 2020, p. 115540.
Turaqulov, Kh. Kh. Technology of chemical processing of agricultural raw materials. — Tashkent: O‘qituvchi, 2019.
Liu, Y., et al. "A facile and eco-friendly method to prepare silica-lignin composites from rice husk for efficient adsorption of Ni(II) ions." Industrial Crops and Products, vol. 145, 2020, p. 112110.
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