Abstract
A new solid nanoparticle sorbent (SnO2 / AC) could serve as high surface area and inexpensive nanocatalyst was prepared. Many properties were characterized by SEM and UV spectroscopy. High surface area, large micro pore volume and total pore volume were found to be 571 m2 g−1, 0.4785 cm3 g−1 and 0.7267 cm3 g−1 respectively even with very high loaded ratio (60 %) of tin dioxide to Activated Carbon (SnO2 / AC). Taguchi factorial design method was used to get the maximum MB dye adsorption on the surface of SnO2 / AC nanoparticle sorbent. Contact time (60 min), initial dye concentration (5 mM) and solution temperature (293 K) were found to be the best conditions for the more effective absorption process.
Highlights
The most extensive work has been performed on the metals and their oxides supported on active carbon instead of SiO2 – Al2O3 [1,2,3,4,5]
SnCl2 ∙ 2H2O, CH3COOH, H2SO4, KOH, Acetone, Ethanol and Methylene Blue (MB) dye and all chemicals reagents in analytical grad were used from Uni-Chem
The XRD data for SnO2 nanopartical (Fig. 3) shows that all the peaks are related to SnO2 tetragonal phase which were confirmed with the standard JCPDS data (No 72-1147)
Summary
The most extensive work has been performed on the metals and their oxides supported on active carbon instead of SiO2 – Al2O3 [1,2,3,4,5]. Various kinds of precursors have been modified with different materials and methods to produce high surface Activated Carbon (AC) such as peanut hulls [9], coconut husk [10], rice husk [11], bamboo [12], fruit stone [13] and papaya leaves [14]. Among of these agricultural wastes, Date Stones (DS) considered as the best candidate because it is cheap and abundantly available [15].
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