From Chemistry Towards Technology Step-By-Step From Chemistry Towards Technology Step-By-Step От химии к технологии шаг за шагом 2782-1900 104796 10.52957/2782-1900-2025-6-3-155-162 Научные статьи Scientific articles Научные статьи Silver-containing nanocomposite based on guar gum as a catalyst for the reduction of 4-nitrophenol Silver-containing nanocomposite based on guar gum as a catalyst for the reduction of 4-nitrophenol Варфоломеева Валерия Александровна Varfolomeeva Valeriya Aleksandrovna Шестаков Александр Станиславович Shestakov Aleksandr Stanislavovich shestakov@chem.vsu.ru Самотина Ирина Юрьевна Samotina Irina Yur'evna Бунина Виктория Романовна Bunina Viktoriya Romanovna Ремхо Виктория Владимировна Remho Viktoriya Vladimirovna Воронежский государственный университет Voronezh State University Воронежский государственный университет Воронеж Россия Voronezh state university Voronezh Russian Federation 30 09 2025 30 09 2025 6 3 155 162 22 07 2025 20 08 2025 https://chemintech.ru/en/nauka/article/104796/view

A silver nanocomposite on a matrix of the natural polysaccharide guar gum cross-linked with borate bridges was obtained. Metallic nanoparticles were synthesised by the reduction of silver ions under the action of the polysaccharide. The formation of the nanocomposites was confirmed by UV and IR spectroscopy and X-ray diffraction analysis. The resulting polymeric nanocomposite shows catalytic activity in the reduction of 4-nitrophenol with sodium borohydride under mild conditions.

A silver nanocomposite on a matrix of the natural polysaccharide guar gum cross-linked with borate bridges was obtained. Metallic nanoparticles were synthesised by the reduction of silver ions under the action of the polysaccharide. The formation of the nanocomposites was confirmed by UV and IR spectroscopy and X-ray diffraction analysis. The resulting polymeric nanocomposite shows catalytic activity in the reduction of 4-nitrophenol with sodium borohydride under mild conditions.

 Guar gum silver nanoparticles catalysis reduction 4-nitrophenol Guar gum silver nanoparticles catalysis reduction 4-nitrophenol The part of the research was conducted using the equipment of the Shared Research and Education Center of Voronezh State University. URL: http://ckp.vsu.ru The part of the research was conducted using the equipment of the Shared Research and Education Center of Voronezh State University. URL: http://ckp.vsu.ru

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