2015
DOI: 10.3390/su71115302
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Adsorptive Removal of Reactive Black 5 from Wastewater Using Bentonite Clay: Isotherms, Kinetics and Thermodynamics

Abstract: Abstract:The studies of the kinetics and isotherms adsorption of the Reactive Black 5 (RB5) onto bentonite clay were explored in a batch study in a laboratory. The maximum RB5 adsorption conditions of bentonite clay were optimized such as shaking speed (100 rpm), temperature (323 K), pH (10), contact time (40 min), initial dye concentration (170 mg·L −1 ), and particle size (177 µm). The adsorbent surface was characterized using Fourier Transform Infrared Spectroscopy spectroscopy. The mechanisms and character… Show more

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Cited by 165 publications
(80 citation statements)
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“…In the manner, reactive dyes are mainly employed in dying paper and textile industries that release large flows from colored wastewater [8]. Many triers to remove the wastewater in different physical, chemical and biological methods were done such as photocatalytic decolorization [8] [9] [10], adsorption [11] [12] [13], bio-removal [14] [15], photo fenton and fenton-like [16] [17] extraction [18], Coagulation [19] [20] and using dielectric barrier discharge [21].…”
Section: Introductionmentioning
confidence: 99%
“…In the manner, reactive dyes are mainly employed in dying paper and textile industries that release large flows from colored wastewater [8]. Many triers to remove the wastewater in different physical, chemical and biological methods were done such as photocatalytic decolorization [8] [9] [10], adsorption [11] [12] [13], bio-removal [14] [15], photo fenton and fenton-like [16] [17] extraction [18], Coagulation [19] [20] and using dielectric barrier discharge [21].…”
Section: Introductionmentioning
confidence: 99%
“…Flory-Huggins isotherm describes the degree of surface coverage characteristics of the adsorbate on the adsorbent [27].…”
Section: Flory-huggins Isothermmentioning
confidence: 99%
“…[59] The calculated isotherm parameters of two anionic dyes from both models are shown in Table 2. [60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][75][76][77][78][79] Though Fe 3 O 4 @SiO 2 -TRIS has a large number of terminal hydroxyl groups, their maximum dye binding capacity is less than that of Fe 3 O 4 @SiO 2 -MPAP [41] and Fe 3 O 4 @SiO 2 -NH 2. It indicates that the adsorption occurs at specific homogeneous sites within the adsorbent, forming a monolayer coating of the dye at the surface of the adsorbent.…”
Section: Adsorption Isotherm Studiesmentioning
confidence: 99%