COBALT-, NICKEL OXIDES-DOPED ACTIVATED CARBONS FROM AGRICULTURAL WASTE: SYNTHESIS, STRUCTURE AND ELECTROANALYTICAL APPLICATION
KƏND TƏSƏRRÜFATI TULLANTILARINDAN KOBALT VƏ NİKEL OKSİDLƏRİ İLƏ LEGİRLƏNMİŞ AKTİVLƏŞDİRİLMİŞ KARBONLAR: SİNTEZ, STRUKTUR VƏ ELEKTROANALİTİK TƏTBİQ
Moldazhan Zh.Y. Ibragim G.S. Kadyrbayeva Zh.Zh. Uali A.S.
2026Azerbaijan National Academy of Sciences
Azerbaijan Chemical Journal
2026#2026Issue 221 - 31 pp.
Considering the growing interest in environmentally friendly and economically advantageous materials, this study focuses on developing activated carbons from waste wheat straw and husk and modifying them with transition metal ions, such as Ni2+, Co2+, and Co3+, to enhance their electrochemical properties. Using agricultural waste simultaneously addresses biomass utilisation challenges and produces valuable low-cost functional materials. A comprehensive physicochemical characterisation of the modified activated carbon (AC) was carried out. This included elemental (CHNS), ash, and oxygen content analysis, as well as spectral (FTIR, Raman) and structural (XRD) analysis of ACs, confirming the successful modification and morphological change. Carbon-paste electrodes exhibited high sensitivity and stable responses in electroanalytical assessments, including redox and acid-base potentiometric titrations. These findings suggest that the material holds significant promise as a cost-effective and efficient sensor for analysing aquatic environments and environmental monitoring. The study underscores the potential of utilising secondary biological resources to fabricate functional carbon materials, aligning with principles of sustainable development and the circular economy.
acid-base and redox titrations , activated carbon , carbon-paste electrode , Co and Ni oxides , potentiometry , waste wheat
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Department of Chemistry, L.N.Gumilyov Eurasian National University, Kazhymukan St 13, Astana, 010000, Kazakhstan
Department of Chemistry
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026