Adsorption of Remazol Brilliant Blue R on activated carbon prepared from a pine cone

Geçgel, Ünal; Kolancılar, Hakan

doi:10.1080/14786419.2010.541878

Cited by 38 publications

(17 citation statements)

References 23 publications

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“…Activated carbon is a widely used adsorbent in adsorption processes since activated carbon has complex pore structure, high specific surface area, and good chemical stability. To reduce the manufacture cost for activated carbon, low cost and naturally available raw materials such as pine cone (Geçgel and Kolancılar 2011), durian seed (Ahmad et al 2014), grape stalk (Ozdemir et al 2014), walnut shell (Yang and Qiu 2010), piassava fibers (Avealr et al 2010), wood apple rind (Malarvizhi and Ho 2010), citrus fruit peel (Dutta et al 2011), papaya seed (Weber et al 2013), and duckweed (Khataee et al 2012) are preferred to produce activated carbon with efficient in adsorption processes.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive Removal of Methylene Blue from Aqueous Solution by the Activated Carbon Obtained from the Fruit of Catalpa bignonioides

Geçgel

Kocabıyık

Üner

2015

Water Air Soil Pollut

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In this study, the fruit of Catalpa bignonioides was used as the raw material to obtain low-cost activated carbon. The activation process was carried out by using chemical activation method with zinc chloride. Catalpa activated carbon (CAC) was characterized using elemental analyzer, Brunauer-EmmetTeller (BET), scanning electron microscopy (SEM), Fourier transform infrared spectra (FTIR), and the point of zero charge (pH ZPC ). The BET surface area of CAC prepared by the impregnation ratio of 30 % ZnCl 2 (w/w) was found to be 896.02 m 2 /g. The efficiency in the process of the removal of methylene blue (MB) from aqueous solution by CAC was searched with different factors, such as temperature, pH, adsorbent concentration, dye concentration, and contact time. From the experimental data obtained, the studies related to adsorption isotherm, kinetics, and thermodynamics were performed. Langmuir model provided the best fit, and the adsorption capacity for the removal of methylene blue from aqueous solution by CAC was calculated to be 271.00 mg/g at 25°C. The adsorption follows a pseudo-second-order kinetic model. Moreover, the thermodynamic parameters such as ΔG°, ΔH°, and ΔS°presented that the adsorption was spontaneous and endothermic.

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Section: Introductionmentioning

confidence: 99%

Adsorptive Removal of Methylene Blue from Aqueous Solution by the Activated Carbon Obtained from the Fruit of Catalpa bignonioides

Geçgel

Kocabıyık

Üner

2015

Water Air Soil Pollut

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“…However, the large volume of wastewaters with high dye concentration requires the development of efficient, non‐toxic, low cost and regenerable adsorbents . Activated carbons have proved to be efficient adsorbents and have been widely applied in water treatment systems …”

Section: Introductionmentioning

confidence: 99%

“…15 -17 Activated carbons have proved to be efficient adsorbents and have been widely applied in water treatment systems. 18,19 One of the challenging stages in the adsorption process is the phase separation difficulty. This difficulty can be simply and efficiently overcomed using magnetic materials that can be separated after the adsorption process by exposure to external magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Effective impregnation for the preparation of magnetic mesoporous carbon: application to dye adsorption

Saroyan

Giannakoudakis

Sarafidis

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND In this study, magnetic mesoporous activated carbons were synthesized either via co‐precipitation of iron salts onto activated carbon or via impregnation of activated carbon with magnetic nanoparticles by sonication. The resulting impregnated carbons were examined as adsorbents for the removal of Reactive Black 5 (RB5) from aqueous solutions. RESULTS The magnetic nanocomposites were characterized by various techniques (nitrogen adsorption, Fourier transform infrared spectroscopy, X‐ray diffraction, vibrating sample magnetometry, and scanning electron microscope measurements). The results of characterization analyses revealed that co‐precipitation was unsuccessful for the preparation of magnetic carbon while sonication led to a super‐paramagnetic activated carbon. Adsorption studies revealed that although magnetic carbon presented a decreased adsorption capacity compared with raw carbon, it was an acceptable dye adsorbent. High pH and high ionic strength values favored dye adsorption, while the data of adsorption isotherms and kinetics were better fitted by the Freundlich isotherm model and the pseudo‐second‐order kinetic model, respectively. Regeneration of dye‐loaded activated carbons by thermal re‐activation and re‐use of regenerated samples were also investigated. CONCLUSION Mesoporous magnetic activated carbon, with a saturation magnetization of 18 emu g−1, was successfully synthesized by sonication of activated carbon and magnetite nanoparticles. The magnetic carbon was found to be an adequate dye adsorbent with a maximum adsorption capacity of 445.294 mg g−1. © 2017 Society of Chemical Industry

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“…AC is an amorphous carbon in which a high degree of porosity has been developed during manufacture. It is this porosity, which governs the way in which AC performs its purifying role, and the very large surface area provides many sites upon which the adsorption of impurity molecules can take place [84][85][86][87][88][89][90]. The factors which favour the selection of agricultural adsorbents are its low cost, widespread presence and organic composition which shows strong affinity for some selected dyes.…”

Section: Production Of Acs From Agricultural By-productsmentioning

confidence: 99%

Dye sequestration using agricultural wastes as adsorbents

Adegoke

2015

Water Resources and Industry

518

223

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Cite this article as: Kayode Adesina Adegoke and Olugbenga Solomon Bello, Dye sequestration using agricultural wastes as adsorbents, Water Resources and Industry, http://dx. AbstractColour is a visible pollutant and the presence of even minute amount of coloring substance makes it undesirable due to its appearance. The removal of color from dye-bearing effluents is a major problem due to the difficulty in treating such wastewaters by conventional treatment methods. The most commonly used methods for color removal are biological oxidation and chemical precipitation. However, these processes are effective and economic only in the case where the solute concentrations are relatively high. Most industries use dyes and pigments to color their products. The presence of dyes in effluents is a major concern due to its adverse effect on various forms of life. The discharge of dyes in the environment is a matter of concern for both toxicological and esthetical reasons. It is evident from a literature survey of about 305 recently published papers that low-cost adsorbents have demonstrated outstanding removal capabilities for dye removal and the optimal equilibrium time of various dyes with different charcoal adsorbents from agricultural residues is between 4 and 5 hrs. Maximum adsorptions of acidic dyes were obtained from the solutions with pH 8-10. The challenges and future prospects are discussed to provide a better framework for a safer and cleaner environment.

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Adsorption of Remazol Brilliant Blue R on activated carbon prepared from a pine cone

Cited by 38 publications

References 23 publications

Adsorptive Removal of Methylene Blue from Aqueous Solution by the Activated Carbon Obtained from the Fruit of Catalpa bignonioides

Adsorptive Removal of Methylene Blue from Aqueous Solution by the Activated Carbon Obtained from the Fruit of Catalpa bignonioides

Effective impregnation for the preparation of magnetic mesoporous carbon: application to dye adsorption

Dye sequestration using agricultural wastes as adsorbents

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