التفاصيل البيبلوغرافية
| العنوان: |
Novel carbonaceous nanocomposite pellicle based on bacterial cellulose. |
| المؤلفون: |
Nata, Iryanti Fatyasari1, Lee, Cheng Kang1 |
| المصدر: |
Green Chemistry. Aug2010, Vol. 12 Issue 8, p1454-1459. 6p. |
| مصطلحات موضوعية: |
*NANOCOMPOSITE materials, *CARBONIZATION, *GLUCOSE, *CELLULOSE, *ACRYLIC acid, *METAL ions, *SUSTAINABLE chemistry |
| مستخلص: |
A novel carbonaceous nanocomposite pellicle was prepared by one-step mild hydrothermal carbonization of bacterial cellulose pellicle soaked in glucose solution. The nano-fibrous structure of bacterial cellulose remains intact while carbonaceous spheres with nanometre sizes were generated from glucose during hydrothermal carbonization at 180 °C for 3 h. The carbonaceous spheres formed in situand anchored on the nanofibers’ surface expanded the nanostructure of bacterial cellulose and the water-holding capacity decreased slightly from 98% to 93%. Approximately 80% w/w of the dried carbonaceous pellicle was found to be nanometre sized carbonaceous spheres. The size of carbonaceous spheres decreased significantly but had a 60% increase of surface carboxyl groups when the carbonaceous pellicle was prepared in the presence of acrylic acid. The carbonaceous spheres in the never-dried pellicle demonstrate a high adsorption capacity towards heavy metal ions. Approximately, 200 mg of Pb(ii) and 1134 mg of Fe(iii) can be adsorbed per gram of carbonaceous pellicle, respectively. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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