Equilibrium and kinetic studies on basic dye adsorption by oil palm fibre activated carbon

Tan, I.A.W.; Hameed, B.H.; Ahmad, A.L.

doi:10.1016/j.cej.2006.09.010

Cited by 669 publications

(303 citation statements)

References 34 publications

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“…Thus, the highest concentration that can be adsorbed by 0.04g TSC was 120 ppm. Furthermore, the adsorption percentage increased from 77 % to 87 % which shows that the rate of removal of the dye is faster at lower concentration and decreased with increasing concentration [19]. Again, this may be caused by the adsorption into the pores on the surface of TSC that was not saturated yet and therefore, the removal percentage of MB by TSC showed an increased trend.This study showed that the concentration of the adsorbate (MB)…”

Section: Effect Of Initial Mb Concentrationmentioning

confidence: 79%

Preparation of activated carbon from tamarind seeds and Methylene blue (MB) removal

Jamion¹,

Hashim²

2018

J. Fundam and Appl Sci.

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In this study, thedye treatment which is methylene blue ascertained with the activated carbon that prepared from the tamarind seed (Tamarindusindica). The conditions used to prepare activated carbon, using phosphoric acid as an activating agent at temperature 500 conditions may be attributed to enhance the surface area and pores development of TSC.Single point BET surface area (S and FESEM analysis showed that the pores development and formation were mostly in circle and oval pattern. The best conditions for TSC sample to adsorb MB effectively were at 50 mL of MB with concentration 120 ppm at temperature, 323 K by u maximum adsorption capacity for MB dye solution was 102.77 mg g In this study, thedye treatment which is methylene blue (MB) as water pollutants the activated carbon that prepared from the tamarind seed ). The conditions used to prepare activated carbon, (TSC) were activat using phosphoric acid as an activating agent at temperature 500 o C for four hours. These conditions may be attributed to enhance the surface area and pores development of TSC.Single point BET surface area (S BET ) analysis gave the surface area of TSC was and FESEM analysis showed that the pores development and formation were mostly in circle and oval pattern. The best conditions for TSC sample to adsorb MB effectively were at 50 mL of MB with concentration 120 ppm at temperature, 323 K by using 0.04 g of TSC. The maximum adsorption capacity for MB dye solution was 102.77 mg g -1 .; methylene blue; adsorption; phosphoric acid.

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Section: Effect Of Initial Mb Concentrationmentioning

confidence: 79%

Preparation of activated carbon from tamarind seeds and Methylene blue (MB) removal

Jamion¹,

Hashim²

2018

J. Fundam and Appl Sci.

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“…For the past two decades, a large variety of waste materials particularly from industrial and agricultural waste products, whose disposal has been a problem, have been successfully utilized as adsorbents for treating the industrial effluents (Bhatnagar and Sillanpaa 2010). Some common waste materials used for this purpose include rubber seed coat (Rengaraj et al 2002), pecan shells (Shawabke et al 2002), jute fiber (Senthilkumaar et al 2005), Indian rosewood sawdust (Garg et al 2004), olive stones (El-Sheikh et al 2004), pine wood (Tsenga et al 2003), coir pith (Namasivayam and Kavitha 2002), rice husk (Guo et al 2005), bamboo (Hameed et al 2007a), rattan sawdust (Hameed et al 2007a) and oil palm fiber (Tan et al 2007). …”

Section: Introductionmentioning

confidence: 99%

Adsorption isotherms, kinetics and mechanism for the adsorption of cationic and anionic dyes onto carbonaceous particles prepared from Juglans regia shell biomass

Nethaji

Sivasamy

Mandal

2012

Int. J. Environ. Sci. Technol.

311

170

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In the present study, Juglans regia shells were used to prepare activated carbon by acid treatment method. J. regia shell-based activated carbon was used for the adsorption of two synthetic dyes namely, a basic dye malachite green and an acid dye amido black 10B. The prepared adsorbent was crushed and sieved to three different mesh sizes 100, 600 and 1,000 lm. The adsorbent was characterized by scanning electron microscopy, surface acidity and zero-point charge. Batch experiments were carried out by varying the parameters like initial aqueous phase pH, adsorbent dosage and initial dye concentration. The equilibrium data were tested with Langmuir, Freundlich, Redlich-Peterson and Sips isotherm at three different temperatures 293, 300 and 313 K and it was found that the Freundlich isotherm best fitted the adsorption of both the dyes. Kinetic data were tested with pseudo first-order model and pseudo second-order model. The mechanism for the adsorption of both the dyes onto the adsorbent was studied by fitting the kinetic data with intraparticle diffusion model and Boyd plot. External mass transfer was found to be the rate-determining step. Based on the ionic nature of the adsorbates, the extent of film diffusion and intraparticle diffusion varied; both being system specific. Thermodynamic parameters were also calculated. Finally, the process parameters of each adsorption system were compared to develop the understanding of the best suitable system.

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“…Dye-bearing wastewaters exhibit high chemical and biochemical oxygen demands [2]. The presence of even very low concentrations in discharge effluents to the environment is worrying for both toxicological and esthetic reasons [3,4]. To reduce the negative effects of dye-contaminated wastewater on humans and the environment, the wastewater must be treated carefully before discharge into main streams [5].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of methylene blue from aqueous solution using untreated and treated (Metroxylon spp.) waste adsorbent: equilibrium and kinetics studies

et al. 2016

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Background (Metroxylon spp.) waste is an inexpensive and abundantly available material with the characteristics of a good adsorbent for treating dye from wastewater. We studied the effectiveness of alkali and acid modification in enhancing the adsorption capacity of sago waste. The untreated and treated adsorbent was characterized by FTIR, elemental analysis and BET surface area. The capacity of each adsorbent to adsorb MB was evaluated at different pH values, adsorbent dosage and initial dye concentrations and contact time. Results According to the results obtained, alkali treatment more than doubled the sorption capacity of sago waste by increasing the porosity, surface area and number of adsorption sites. The alkali-treated material also adsorbed significantly more than many known biosorbents. The effects of the initial concentration of methylene blue, solution pH and adsorbent dosage on methylene blue removal are reported. Equilibrium data were best represented by the Langmuir isotherm model with adsorption capacities of 83.5, 212.8 and 36.82 mg/g for untreated, potassium hydroxide-treated and phosphoric acid-treated sago wastes, respectively. The kinetics of adsorption were best described by a pseudo-second-order model (R 2 = 0.999). Conclusions The alkali treatment of sago waste demonstrates the use of a low-cost agricultural waste and a simple modification process to produce an effective adsorbent for removing cationic dye from wastewater.

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Equilibrium and kinetic studies on basic dye adsorption by oil palm fibre activated carbon

Cited by 669 publications

References 34 publications

Preparation of activated carbon from tamarind seeds and Methylene blue (MB) removal

Preparation of activated carbon from tamarind seeds and Methylene blue (MB) removal

Adsorption isotherms, kinetics and mechanism for the adsorption of cationic and anionic dyes onto carbonaceous particles prepared from Juglans regia shell biomass

Adsorption of methylene blue from aqueous solution using untreated and treated (Metroxylon spp.) waste adsorbent: equilibrium and kinetics studies

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