IJCRR - Vol 08 Issue 06, March, 2016
EVALUATION OF THE EFFECTS OF PH AND TEMPERATURE ON THE ADSORPTION ISOTHERM OF ACTIVATED MEDICOAL FROM NIGERIA PLANTS. MAGNIFERAINDICA, PERSEAGRATISSIMA AND PSIDIUMGUAJAVA
Author: Edwin N. Oguegbulu, Emmanuel A. Nwokeboth
Activated charcoal, also referred to as medicoal is known to be a versatile tool in the field of Pharmaceutical Medicine. This was successfully prepared from the stem parts of Mangiferaindica (Mango), Psidiumguajava (Guava) and Perseagratissima (Avagado pear) by process of carbonization and thermal activation. Liquid phase study was conducted using Freundlich isotherm model to evaluate the equilibrium adsorption data generated for methylene blue (MB) sulphanephthalein dye stuff on activated medicoal test samples. Ultra violet spectroscopic method was used to assess the effect of variation of pH and temperatures on the adsorption profile of all the medical samples, including the commercially available standard. The results were found to be statistically significant using the one-tail analysis of variance (ANOVA) at confidence interval of p ≤ 0.05. The research showed that the availability of negatively charged groups at the adsorbent surface is necessary for the adsorption of alkaline dye - stuff, thus the pH increase resulted to an increase in adsorption. The investigation also indicated that adsorption of locally sourced medicoal increases with temperature. The adsorption pattern of Perseagratissima compared favorably with that of the commercially available standard whereas Psidiumguajava ranked lowest.
Keywords: Locally sourced activated medicoal, Adsorption capacity, Function of, Temperature and pH
Edwin N. Oguegbulu, Emmanuel A. Nwokeboth. EVALUATION OF THE EFFECTS OF PH AND TEMPERATURE ON THE ADSORPTION ISOTHERM OF ACTIVATED MEDICOAL FROM NIGERIA PLANTS. MAGNIFERAINDICA, PERSEAGRATISSIMA AND PSIDIUMGUAJAVA International Journal of Current Research and Review. Vol 08 Issue 06, March, 18-21
1. Abrowski, A. D. (2005). Adsorption- from theory to practice, Advanced colloid interface science;pg 135 – 224.
2. Ademiluyo, F., Amadi, T., Nimisingha, J. (2009). Adsorption and Treatment of Organic Contaminants Using Activated Carbon from Waste Nigeria Bamboo, Rivers State University of Science and Technology, Port Harcourt, Nigeria, J. Appl. Sci. Environ. Manag.; 13(3): pp39 – 47.
3. Christmann, K. Adsorption. Lecture Series2010 /2011.”Modern Methods in Heterogenous Catalysis Research”. Institut Fur Chemie und Biochemie, Freie Universitat. Berlin.Pp. 1 -39.
4. Fiyyaz, A., Zill-i-hima, N., Waseem, S. (2000).Conversion of some Agro-Industrial Wastes into Useful Industrial Products. Pak. J. Agri. Sci.; 37: pp3 - 4.
5. Florence AT and Attwood D.(1981). Physicochemical Principles ln Pharmacy. Macmillan Ltd. N.y. Pp 66 -102.
6. Hema, M., Martin, D. (2009). Adsorption of malachite green onto carbon prepared from Borassus bark, The Arabian Journal for Science and Engineering;Vol. 34, Number 2A, July 2009.
7. NiebergallPJ(1980).Ionic solutions and Electrolytic Equilibria. InOsol Arthur (ed.).Remington’sPharmaceuticalSciencesMackP ublishing.Co.,Pennsylvania.Pp225-243.
8. Oguegbulu EN and Okumiahor J. Evaluation of the adsorption isotherm of activatedcharcoal used in pharmaceutical medicine from someNigerian plant parts, corn cobs, the wooden parts ofMangiferaindicaand Azandirachtaindica. Advancement in Medicinal Plant Research.Vol. 1(4), pp. 72-76, October 2013
9. Oguegbulu EN and Nwoke EA.(2015).Physicochemical and Spectroscopic Evaluation of Adsorption Potentials of Activated charcoal from stem parts of Mangiferaindica, Perseagratissima and Psidiumguajava for Pharmaceutical medicine. Novo Journal of Medical and Biological Sciences.Vol.4(2).2015.1-9.
10. Piero, M. A. Adsorption (last modified June 2005). Cited 8th November 2013 at 10:20am http://cpe.njit.edu/dlnotes/ CHE689/ Cls11-1.pdf
11. Transtutor. Surface area and adsorption (Last modified January, 2013). Cited 15th December 2013 at 1:15amhttp://www. transtutors.com/chemistry-homework-help/surfacechemistry/ adsorption.aspx
12. W.ikipedia (The Free Encyclopedia). Reactivation of Charcoal (Last Modified 17th November, 2012). Cited 9th January 2014 at 10am.http://en.m.wikipedia.org/wiki/Activated _carbon#section_7.
13. Zhu, J., Gao, J., Li, Y., Sun, T., Wu, S., (2012). In Preparation of Activated Carbons for SO2 Adsorption by CO2 and steam activation. J Twain Inst Chem Eng; 43(1): 112-119.