Adsorption of phenol from aqueous solutions using mesoporous carbon prepared by two-stage process

Kennedy, L. John; Vijaya, J. Judith; Kayalvizhi, K.; Sekaran, G.

doi:10.1016/j.cej.2007.01.009

Cited by 203 publications

(102 citation statements)

References 24 publications

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“…Otherwise, a desorption hysteresis loop in the mesopores is presented due to adsorbate condensation. All the phenomena show a good agreement with the known data (Puziy et al 2002;Kennedy et al 2007;Tongpoothorn et al 2011). Meanwhile, the porous structure parameters of the SBPAC are illustrated in Table 1 The FTIR spectra of SBPAC are shown in Fig.…”

Section: Characterizationsupporting

confidence: 64%

Adsorption kinetic studies for removal of methylene blue using activated carbon prepared from sugar beet pulp

Yan

Liu

et al. 2016

Int. J. Environ. Sci. Technol.

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Sugar beet pulp is an abundant, renewable and low-cost precursor for production of activated carbon. In the present study, sugar beet pulp based activated carbon was prepared by using phosphoric acid as activating agent for adsorption of methylene blue. The conditions of preparation process had a significant influence on the adsorption of methylene blue, and the optimal preparation conditions were obtained as follows: liquid-to-solid ratio of 5, temperature of 450°C and phosphoric acid concentration of 3 mol/L. The properties of sugar beet pulp based activated carbon were characterized by nitrogen adsorption isotherm. The adsorption increases as the increase of contact time, adsorption temperature and pH, and initial concentration of methylene blue. Batch kinetic studies showed that an equilibrium time of 100 min was needed for the adsorption, and the adsorbance of methylene blue is 244.76 mg/g at equilibration. Kinetic models, Weber's pore diffusion model and Boyd's equation were applied to the experimental data to study the mechanism of adsorption and the controlled step. The results showed that the adsorption kinetics followed the pseudosecond-order type kinetic model, intraparticle diffusion was not the rate-limiting mechanism and adsorption process was controlled by film diffusion.

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Section: Characterizationsupporting

confidence: 64%

Adsorption kinetic studies for removal of methylene blue using activated carbon prepared from sugar beet pulp

Yan

Liu

et al. 2016

Int. J. Environ. Sci. Technol.

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“…The compositions of rice husk have been studied and being investigated for preparation of activated carbon as adsorbent for removal of organic pollutants. Improving the quality of porous structures and adsorption capacity has been intensively studied.Development of technologies for preparation of high porous activated carbon is very important to obtained maximum process in removal of contaminates [11][12][13] .…”

Section: Introductionmentioning

confidence: 99%

Removal of 2-chlorophenol Using Rice Husk Activated Carbon Prepared by zncl2/h3po4 Activation

Allwar¹,

Syamsurizal²

2017

Orient. J. Chem

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The rice husk, agricultural solid waste was successfully converted into activated carbon using mixture of chemical agents ZnCl 2 /H 3 PO 4 . Their properties including porous structures, surface functional groups and morphology structures were carefully studied. Applications of rice husk activated carbons were applied for removal of 2-chlorophenol in aqueous solution under different conditions. The nitrogen isotherm exhibits Type IV, and the presence of hysteresis loop clearly shows the predominantly mesoporous characteristics. The BET and Langmuir surface areas are 144.6 and 212.5 m 2 g -1 , respectively. The equilibrium adsorptions for both Langmuir and Freundlich isotherms show the best a regression coefficient closed to unity. The values of correlation coefficient R 2 = 0.9976 represented the satisfactory pseudo-second-order model. The results show that rice husk activated carbon was effectively used as adsorbent for removal of 2-chlorophenol.

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“…The crystallites are formed by two or more of these plates being stacked one above the other. Notable property for well-defined adsorbents such as activated carbon is the absence of sharp peaks which indicate it is a is a largely amorphous structure (Kennedy, Vijaya, Kayalvizhi, & Sekaran, 2007). Figure 3(b) showed the XRD graph of the seeds of Moringa Oleifera.…”

Section: Introductionmentioning

confidence: 99%

Development of Water Treatment Sachets From the Seeds of Moringa Oleifera and Activated Carbon

Zakaria

Mansor

Shahrin

2018

mijst

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Adsorption of phenol from aqueous solutions using mesoporous carbon prepared by two-stage process

Cited by 203 publications

References 24 publications

Adsorption kinetic studies for removal of methylene blue using activated carbon prepared from sugar beet pulp

Adsorption kinetic studies for removal of methylene blue using activated carbon prepared from sugar beet pulp

Removal of 2-chlorophenol Using Rice Husk Activated Carbon Prepared by zncl2/h3po4 Activation

Development of Water Treatment Sachets From the Seeds of Moringa Oleifera and Activated Carbon

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