Liquid-phase adsorption of phenols using activated carbons derived from agricultural waste material

Kinetic and Thermodynamic Study of Phenol Removal from Water Using Activated Carbon Synthesizes from Avocado Kernel Seed

“…Equilibrium studies were carried out by taking 0.3 g powdered activated Carbon with 25 mL phenol solution of different initial concentrations (10,20,30,50,60, and 70 μg/L) for the aqueous solution of phenol in twelve (250mL) conical flask. The pH of the solutions was adjusted to 6.0 by adding either 0.1 M HCl or 0.1 M NaOH solutions.…”

“…In this study the maximum adsorption was recorded at a lower temperature (30 o C) and the minimum adsorption was observed at a higher temperature (40 o C). The increased uptake of phenol with an increase in initial concentration indicates that chemisorption more dominates over physisorption [30].…”

Superparamagnetic Fe3O4 nanoparticles as catalysts for the catalytic oxidation of phenolic and aniline compounds

“…These compounds are harmful to human health, and suspected to be carcinogens. Many techniques including physical adsorption [3][4][5][6][7][8], electrochemical oxidation [9][10][11], biodegradation [12][13][14], catalytic wet oxidation [15][16][17], and Fenton reagent oxidation [18][19][20] have been adopted for the removal of phenolic and aniline pollutants. Though practicable and effective these methods are, they also have some drawbacks, such as high cost, incomplete removal, more toxic byproducts than original pollutants.…”

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

“…The above reasons have prompted enormous research interest in the use of agricultural waste as starting materials because of their low-cost and widespread availability. Some examples of agrowaste that have been used for the removal of dyes are palm kernel fibers [12] , coir pith [13] , sugarcane bagasse [14] , banana peel [15] , peanut hull [16] , rice bran and wheat bran [17] , rice husk [18] , tea waste [19] , waste apricot [20] , rubber seed coat [21] , coconut shell [22] , apple pomace and wheat straw [23] , halzelnut shell [24] , plum kernel [25] , corncob and barley husk [26] , bamboo [27] , grass waste [28] , pumpkin seed hull [29] and garlic peel [30] . Methyl Red (MR) is a commonly used monoazo dye in laboratory assays, textiles and other commercial products; however, it may cause eye and skin sensitization [31] and pharyngeal or digestive tract irritation if inhaled or swallowed [32] .…”