The effect of chitosan's addition to resorcinol/formaldehyde xerogels on the characteristics of resultant activated carbon
المؤلف | Awadallah-F A. |
المؤلف | Al-Muhtaseb S.A. |
تاريخ الإتاحة | 2020-04-01T06:54:48Z |
تاريخ النشر | 2019 |
اسم المنشور | Materials |
المصدر | Scopus |
الرقم المعياري الدولي للكتاب | 19961944 |
الملخص | Hybrid chitosan-resorcinol/formaldehyde xerogels were synthesized, and the effect of including minor quantities of chitosan on the consequent activated carbon was investigated. The resulting activated carbon were characterized by different techniques. Clear changes were found in the structure of activated carbon as a result of including chitosan in the synthesis. The results showed that the disorder ratio of crystal lattice decreased from 0.750 to 0.628 when increasing the concentration of chitosan from 0 to 0.037 wt%. The micropores increased from ~0.3% to ~1.0%, mesopores increased from ~11.2% to ~32.9% and macropores decreased from ~88.4% to ~66.1%. The total pore volume decreased from 1.040 to 0.238 cm3/g and the total pore surface area decreased from 912.3 to 554.4 m2/g. On the other hand, the average pore width decreased from 2.3 to 0.8 nm and the average particle size decreased from 224 to 149 nm. Nano-scale Scanning Electron Microscope (NanoSEM) morphology indicated a critical composition of chitosan (0.022 wt%) that affects the structure and thermal stability of activated carbon produced. - 2019 by the authors. |
راعي المشروع | This publication was made possible by the NPRP award (NPRP 08-014-2-003) from the Qatar National Research Fund (a member of Qatar Foundation). Statements made herein are the sole responsibility of the authors. Technical support from the Department of Chemical Engineering, Central Laboratory Unit (CLU) and Gas Processing Centre (GPC) at Qatar University is also acknowledged. Further, the publication of this article was funded by the Qatar National Library. This research was funded by Qatar National Research Fund (QNRF), Qatar; grant number NPRP 08-014-2-003. |
اللغة | en |
الناشر | MDPI AG |
الموضوع | Activated carbon Chitosan Formaldehyde Resorcinol Xerogel |
النوع | Article |
رقم العدد | 23 |
رقم المجلد | 12 |
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