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Adsorption of rhodamine B with activated carbon prepared from beech wood | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 11, Volume 33, Issue 2 - Serial Number 63, July 2018, Pages 280-289 PDF (642.74 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2018.116836.1451 | ||
| Authors | ||
| Mahmoud Rouhbakhsh Bidaei1; Mohammad Azadfallah* 2; Rasoul Yarahmadi3 | ||
| 1Wood and Paper Science and Technology Department, Natural Resources Faculty, University of Tehran | ||
| 2University of Tehran | ||
| 3Associate Professor, Department of Occupational Health, Member of Occupational Health Research Center, Iran University of Medical Sciences, Tehran, Iran | ||
| Abstract | ||
| Dyes release into waste water due to its toxicity for some organisms results in major environmental pollution problems. The activated carbon (AC) is an efficient adsorbent to remove this kind of pollutants from aqueous phase. Hence, in this research activated carbon was prepared from sound and rotted beech wood by chemical activation method and its adsorption capacity for removal of Rhodamine B was assessed. The carbonization and activation steps were performed at single stage with impregnating the substrate by zinc chloride as activating agent and with the ratio of 75, 100 and 125 percent to raw material mass at 400 and 500 ºC. The results showed that with increasing the impregnating agent content, the iodine number of ACs from both woods enhanced. The yield of AC from sound wood decreased with increasing impregnating agent while it was not predictable for AC resulted from rotted wood. Scanning electron microscopic (SEM) studies revealed much morphological changes in the surface of rotted wood-AC in comparison with sound wood -AC after treatment with activating agent. Also, raising the activating temperature from 400 to 500 ºC caused to enhance the iodine number. All prepared ACs performed much efficient in removal of Rhodamine B from aqueous solution. The maximum adsorption of the dye was obtained for ACs prepared under impregnating ratio of 125 and activating temperature of 500 ºC. | ||
| Keywords | ||
| Activated carbon; Rhodamine B; rotted wood; beech; Adsorption | ||
| References | ||
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