Adsorption of phenol and reactive dye from aqueous solution on activated carbons derived from solid wastes

Nakagawa, Kyuya; Namba, Akio; Mukai, Shin R.; Tamon, Hajime; Ariyadejwanich, P.; Tanthapanichakoon, Wiwut

doi:10.1016/j.watres.2004.01.002

Cited by 178 publications

(88 citation statements)

References 20 publications

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“…Literature provides many reports on obtaining activated carbon by physical and chemical activation of all kinds of waste materials of plant or industrial origin (Cabal et al 2009;Chand et al 2009;Nakagawa et al 2003Nakagawa et al , 2004San Miguel et al 2002;Toles et al 1999). Such solutions are appreciated not only from the ecological viewpoint but also for economical reasons (reduced cost of production).…”

Section: Introductionmentioning

confidence: 99%

NO2 removal on adsorbents prepared from coffee industry waste materials

2013

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A technology for obtaining carbonaceous adsorbents by physical and chemical activation of waste materials from coffee industry is described. The effect of pyrolysis temperature and type of activation procedure on the textural parameters, acid-base character of the surface and sorption properties of activated carbons has been tested. The resulting carbons were characterized by lowtemperature nitrogen sorption, determination of pH and the number of surface oxygen groups. The sorption properties of the activated carbons obtained were characterized by evaluation of nitrogen dioxide adsorption in dry and wet conditions. The final products were adsorbents of specific surface area ranging from 5 to 2,076 m 2 /g and pore volume from 0.03 to 1.25 cm 3 /g, showing very diverse acidicbasic character of the surface. The results obtained in our study have proved that a suitable choice of the pyrolysis and activation procedure for coffee industry wastes permits production of adsorbents with high sorption capacity of nitrogen dioxide, reaching to 44.5 and 84.1 mg NO 2 /g in dry and wet conditions, respectively.

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Section: Introductionmentioning

confidence: 99%

NO2 removal on adsorbents prepared from coffee industry waste materials

2013

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“…The relationship between the specific surface area and the micropore size of AC was determined. The presence of mesopores together with micropores in the activated carbon enhances its adsorption capacities, especially in the case of large adsorbate molecules such as dye molecules (Nakagawa et al, 2004). Phenolic, lactonic, and carboxyl groups existed as surface functional groups, and the amounts of acidic functional groups were in the order: N-AC (0.46 -0.95 mmol/g) < B-AC (0.47 -1.11 mmol/g) < A-AC (1.31 -1.90 mmol/g).…”

Section: Results and Discussion Ac Characteristicsmentioning

confidence: 99%

Development of the Treatment Technology for Dye Removal from Aqueous Solution Using Activated Carbon Treatment and Ozone Oxidation

Ogata

Tominaga

Yabutani

et al. 2011

J. of Wat. & Envir. Tech.

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Activated carbon treatment and ozone oxidation were used for decolorization or total organic carbon (TOC) removal from an aqueous solution. Acid, neutral, and basic activated carbon (A-AC, N-AC, and B-AC) were prepared with particle sizes of 44 -297 μm (S), 297 -500 μm (M), and 500 -840 μm (L), respectively. Methylene blue (MB) and orange II (ORII) were used as adsorbates, and the amount of MB or ORII adsorbed onto AC depended on the specific surface area of the AC. The adsorption data were fitted to the Freundlich and Langmuir equations, which suggested that the mechanism by which dye is adsorbed onto AC is that of monomolecular adsorption onto a heterogeneous surface. After ozone treatment, the MB and ORII structures were degraded and decolorized. However, TOC was not significantly reduced because the dye structure was broken down by ozone oxidation, which generated low-molecular-weight molecules but did not remove them. Activated carbon treatment after ozone oxidation was very effective for dye and TOC removal. This treatment enhanced the TOC removal by up to 20 -30% from that achieved solely by ozone treatment.

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“…2 (c), the enlargement of pores had turned into cleavages, exposing more native cellulose so that the previously unreachable inner part of the fiber was able to react with the quaternizing agent. Larger pores also are more suitable for adsorption of bulky substrates such as reactive dyes (Nakagawa et al 2004).…”

Section: Textural Analysismentioning

confidence: 99%

Development of Novel Low-Cost Quaternized Adsorbent from Palm Oil Agriculture Waste for Reactive Dye Removal

Koay¹,

Ahamad²,

Mobarekeh³

et al. 2013

BioResources

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An attempt was made to chemically modify palm kernel shell (MPKS) to increase adsorption affinity towards Reactive Black 5 (RB5). Granulated palm kernel shell (PKS) was quaternized successfully by treating with N-(3-chloro-2-hydroxypropyl)trimethylammonium chloride under alkaline conditions and was characterized. Surface characterization by Scanning Electron Microscopy (SEM) and BET analysis confirmed the surface pore enlargement from mesospores to macropores after modification. Fourier Transform-Infrared (FTIR) Spectrometer and CHN analysis revealed that the quaternary ammonia group (NR 4 + ) was successfully reacted on MPKS fiber. pH 4 is the optimum for removal of RB5 on MPKS. Equilibrium isotherms were analyzed by the Langmuir, Freundlich, and Redlich-Peterson models. The Redlich-Peterson model was found to fit well with the data. The maximum adsorption capacity of MPKS was 207.5 mg/g for adsorption of RB5.

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Adsorption of phenol and reactive dye from aqueous solution on activated carbons derived from solid wastes

Cited by 178 publications

References 20 publications

NO2 removal on adsorbents prepared from coffee industry waste materials

NO2 removal on adsorbents prepared from coffee industry waste materials

Development of the Treatment Technology for Dye Removal from Aqueous Solution Using Activated Carbon Treatment and Ozone Oxidation

Development of Novel Low-Cost Quaternized Adsorbent from Palm Oil Agriculture Waste for Reactive Dye Removal

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