Use of Starbon for the Adsorption and Desorption of Phenols

Novel materials, Starbon, prepared from naturally abundant polysaccharides, such as starch and alginic acid, have demonstrated significant potential as adsorbents for the uptake of a range of phenolic compounds. The experimental results revealed that the materials exhibited high efficiency to remove phenols from aqueous media due to their high mesoporous nature. The adsorption process was described well by the Langmuir and Freundlich isotherms. Thermodynamic analysis of the results indicated that adsorption was a physical process and is in agreement with data obtained from the Dubinin–Radushkevich isotherm model. Enthalpy of adsorption varied from endothermic to exothermic for different adsorbents and phenolics. Regeneration of Starbon was attempted using a range of pH with phenol recovery of up to 40% achieved. This work demonstrates the effectiveness of a green sustainable adsorbent for removal of hazardous compounds from aqueous waste streams.

[1]  I. D. Mall,et al.  Adsorptive removal of phenol by bagasse fly ash and activated carbon: Equilibrium, kinetics and thermodynamics , 2006 .

[2]  C. Moreno-Castilla.  Adsorption of organic molecules from aqueous solutions on carbon materials , 2004 .

[3]  F. Banat,et al.  Adsorption of phenol by bentonite. , 2000, Environmental pollution.

[4]  J. Clark,et al.  Polysaccharide‐Derived Carbons for Polar Analyte Separations , 2010 .

[5]  I. Langmuir.  THE ADSORPTION OF GASES ON PLANE SURFACES OF GLASS, MICA AND PLATINUM. , 1918 .

[6]  G. Mckay,et al.  Adsorption of acid dyes on chitosan—equilibrium isotherm analyses , 2004 .

[7]  M. Streat,et al.  Sorption of phenol and para-chlorophenol from water using conventional and novel activated carbons , 1995 .

[8]  Arsenic removal using mesoporous alumina prepared via a templating method. , 2004 .

[9]  Surendra Kumar,et al.  Adsorption of phenol and 4-nitrophenol on granular activated carbon in basal salt medium: equilibrium and kinetics. , 2007, Journal of hazardous materials.

[10]  T. Anirudhan,et al.  Removal of phenols from water and petroleum industry refinery effluents by activated carbon obtained from coconut coir pith , 2009 .

[11]  C. A. Başar.  Applicability of the various adsorption models of three dyes adsorption onto activated carbon prepared waste apricot. , 2006, Journal of hazardous materials.

[12]  J. Vijaya,et al.  Equilibrium, kinetic and thermodynamic studies on the adsorption of m-cresol onto micro- and mesoporous carbon. , 2007, Journal of hazardous materials.

[13]  Sunil Kumar,et al.  Removal of phenols from water environment by activated carbon, bagasse ash and wood charcoal , 2007 .

[14]  A. Da̧browski,et al.  Adsorption of phenolic compounds by activated carbon--a critical review. , 2005, Chemosphere.

[15]  B. Girgis,et al.  REMOVAL OF SOME SUBSTITUTED PHENOLS BY ACTIVATED CARBON OBTAINED FROM AGRICULTURAL WASTE , 1998 .

[16]  A Benhammou,et al.  Adsorption of metal ions onto Moroccan stevensite: kinetic and isotherm studies. , 2005, Journal of colloid and interface science.

[17]  A. J. Hunt,et al.  Elemental sustainability: Towards the total recovery of scarce metals , 2012 .

[18]  A. J. Hunt,et al.  Delicious not siliceous: expanded carbohydrates as renewable separation media for column chromatography. , 2005, Chemical communications.

[19]  A. Kuleyin.  Removal of phenol and 4-chlorophenol by surfactant-modified natural zeolite. , 2007, Journal of hazardous materials.

[20]  C. Lii,et al.  Interactions of starch with salts of metals from the transition groups , 2003 .

[21]  B. Özkaya.  Adsorption and desorption of phenol on activated carbon and a comparison of isotherm models. , 2006 .

[22]  C. Namasivayam,et al.  Adsorptive removal of 2-chlorophenol by low-cost coir pith carbon. , 2003, Journal of hazardous materials.

[23]  A. J. Hunt,et al.  The importance of being porous: polysaccharide-derived mesoporous materials for use in dye adsorption , 2012 .

[24]  M. Abdel Salam,et al.  Thermodynamics and Kinetics Studies of Pentachlorophenol Adsorption from Aqueous Solutions by Multi-Walled Carbon Nanotubes , 2010 .

[25]  G. Crini.  Recent developments in polysaccharide-based materials used as adsorbents in wastewater treatment , 2005 .

[26]  P. Tomasik,et al.  Inclusion complexes of starches with hydrocarbons , 2000 .

[27]  Lina Zhang,et al.  Adsorption isotherms and kinetics studies of malachite green on chitin hydrogels. , 2012, Journal of hazardous materials.