СИНТЕЗ УГЛЕРОДНЫХ МАТЕРИАЛОВ ИЗ СКОРЛУПЫ ГРЕЦКИХ ОРЕХОВ ПУТЕМ КАРБНИЗАЦИИ В ПРИСУТСТВИИ ФОСФОРНОЙ КИСЛОТЫ
Ключевые слова:
carbons, nitrogen adsorption, sorbents,Аннотация
Тwo different carbons, namely CWS-P-500_1-1 and CWS -P-500_2-1, were prepared from walnut shells by H3PO4-activation at H3PO4/ precursor (wt/wt) impregnation ratio of 1:1 and 2:1 respectively in self-generated atmosphere for 1 hour at 500 ºC. Low-temperature nitrogen adsorption studies showed that the estimated specific surface area was at least 668 m2/g for CWS-P- 500_1-1 and 943 m2/g for CWS-P-500_2-1; however methylene blue batch adsorption studies results at equilibrium conditions, which fitted Langmuir model with high R2 values, showed that the maximal methylene blue monolayer capacity varies insignificantly and amounts to 592 mg/g for CWS-P-500_1-1 and 649 mg/g for CWS-P-500_2-1 respectively. These high values of adsorption capacity signify for potential application of the obtained sorbents in water purification processes.Библиографические ссылки
1. Мансурова Р.M. Углеродсодержащие композиции. Химия и химическая технология. Современные проблемы. -Алматы: XXI век, 2001. - С. 152-175.
2. Evaluation of synthetic conditions for H3PO4 chemically activated rice husk and preparation of honeycomb monoliths Jandosov J.M., Shikina N.V., Bijsenbayev M.A., Shamalov M.E., Ismagilov Z.R., Mansurov Z.A. Eurasian Chemico-technological journal. Almaty, 2009, V.11. -№3. – P. 245 – 252
3. Mesoporous Carbon-based Rhodium Catalysts for Benzene Hydrogenation, J. M. Jandosov, Z. A. Mansurov, M. A. Biisenbayev, Z.R.Ismagilov, N.V.Shikina, I.Z. Ismagilov, S .R. Konuspayev, M. Shaymardan, “Carbon2011”, July 24-29,2011, Conference in Shanghai,China, CD-Author index # 880
4. Mansurov Z.A. Some Applications of Nanocarbon Materials for Novel Devices // Gross R. et al (eds.). Nonoscale-Devices –Fundamentals.- Springer, 2006. - P. 355-368.
5. Углеродные наноструктурированные материалы на основе растительного сырья// Под ред. З.А.Мансурова. Алматы: Қазақ университеті. 2010. - C.207-274.
2. Evaluation of synthetic conditions for H3PO4 chemically activated rice husk and preparation of honeycomb monoliths Jandosov J.M., Shikina N.V., Bijsenbayev M.A., Shamalov M.E., Ismagilov Z.R., Mansurov Z.A. Eurasian Chemico-technological journal. Almaty, 2009, V.11. -№3. – P. 245 – 252
3. Mesoporous Carbon-based Rhodium Catalysts for Benzene Hydrogenation, J. M. Jandosov, Z. A. Mansurov, M. A. Biisenbayev, Z.R.Ismagilov, N.V.Shikina, I.Z. Ismagilov, S .R. Konuspayev, M. Shaymardan, “Carbon2011”, July 24-29,2011, Conference in Shanghai,China, CD-Author index # 880
4. Mansurov Z.A. Some Applications of Nanocarbon Materials for Novel Devices // Gross R. et al (eds.). Nonoscale-Devices –Fundamentals.- Springer, 2006. - P. 355-368.
5. Углеродные наноструктурированные материалы на основе растительного сырья// Под ред. З.А.Мансурова. Алматы: Қазақ университеті. 2010. - C.207-274.
Загрузки
Выпуск
Раздел
НАНОТЕХНОЛОГИЯ
