Adsorption of methylene blue on activated carbon fiber prepared from coconut husk: isotherm, kinetics and thermodynamics studies

Al‐Aoh, Hatem A.; Yahya, Rosiyah; Maah, Mohd Jamil; Abas, Mhd Radzi Bin

doi:10.1080/19443994.2013.831794

Cited by 42 publications

(23 citation statements)

References 43 publications

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“…Increasing of initial pH values from 2 to 10 enhances the adsorption capacity of MB from 89.07 to 207.09 mg/g. At higher initial pH values, the surface of the adsorbent CNDB adopts the negatives charges sites which favorites the adsorption of BM cations by electrostatic attraction while at lower initial pH values the surface of the CADB adopts the positive charge which causes a decrease in BM adsorbed due to the electrostatic repulsion, similar results were obtained by other studies on MB adsorption by activated carbon (AL-Aoh et al, 2013;Karagöz et al, 2008;Postai et al, 2016).…”

Section: Effect Of Ph On Adsorption Of Mbsupporting

confidence: 83%

Removal of methylene blue using activated carbon prepared from date stones activated with NaOH

2019

Global NEST: The International Journal

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<p>Synthetic dyes have a hurtful effect on human health and the environment. In this work, activated carbon was produced from date stones for use in elimination of methylene blue charged in aqueous solutions. Before that, the adsorbent was characterized by BET method, SEM, X-ray and TGA. The results of the adsorption kinetics are describe better with the pseudo-second order model (R2= 0.998). Frendlich adsorption isotherm model describe better the experimental data than the Langmuir model. The capacity for methylene blue removal was found to be 163.67 mg/g. Batch experiments studies show that the activated carbon produced as of date stones can be used effectively in the treatment of cationic dyes in aqueous solutions.</p>

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Section: Effect Of Ph On Adsorption Of Mbsupporting

confidence: 83%

Removal of methylene blue using activated carbon prepared from date stones activated with NaOH

2019

Global NEST: The International Journal

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“…Its high carbon content comprises mainly of cellulose and lignin (60%). The presence of carboxylic, phenolic and hydroxyl groups makes them a useful adsorbent (Low et al 1995;Al-Aoh et al 2013). Adsorption using AC is favored due to its high removal efficiencies with a wide range of pollutants, fast adsorption kinetics and its simplistic design (Tan et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Nutrient removal using spent coconut husks

et al. 2019

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Wastewater management poses major environmental and economic problems in many small island developing states (SIDs), such as Trinidad and Tobago. Conventional wastewater treatment using activated carbon (AC) from charcoal is very costly. However, using spent coconut husks can be a cheap, environmentally friendly alternative source of AC for removing nitrogen and phosphorus in the secondary effluent. This study considered thermal and non-thermal, chemical activation methods to create four different AC treatments. The treatments considered included: virgin AC (thermally activated only) and subsequent acid treatments. Acid treatments were considered as an acidic environment, optimized nitrate and phosphate removal and reduced hydroxyl ion competition. Although all treatments were effectively removed nitrates, virgin AC was ineffective in PO43−-P removal when concentrations were less than 10 mg/L. This was probably due to naturally occurring PO43−-P leaching from the coconut husk. The differences in removal efficiencies and adsorption capacities were not significantly different between treatments. Thermal activation was sufficient to remove NO3−-N and PO43−-P greater than 10 mg/L in experiments with batch stock solutions and the secondary effluent. Virgin AC can therefore be used as a potential substitute for conventional AC.

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“…The accumulation of these residual antibiotics not only pollutes the environment, but also causes harm to human health. 4 With the emergence of super bacteria, there is serious concern that society will lack the required antibiotics in future. 5 The warnings of scientists have attracted the attention of the public and governments.…”

Section: Introductionmentioning

confidence: 99%

Core–shell TiO₂@C ultralong nanotubes with enhanced adsorption of antibiotics

Wang

Hong-mei

et al. 2019

J. Mater. Chem. A

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Adsorption of methylene blue on activated carbon fiber prepared from coconut husk: isotherm, kinetics and thermodynamics studies

Cited by 42 publications

References 43 publications

Removal of methylene blue using activated carbon prepared from date stones activated with NaOH

Removal of methylene blue using activated carbon prepared from date stones activated with NaOH

Nutrient removal using spent coconut husks

Core–shell TiO₂@C ultralong nanotubes with enhanced adsorption of antibiotics

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Adsorption of methylene blue on activated carbon fiber prepared from coconut husk: isotherm, kinetics and thermodynamics studies

Cited by 42 publications

References 43 publications

Removal of methylene blue using activated carbon prepared from date stones activated with NaOH

Removal of methylene blue using activated carbon prepared from date stones activated with NaOH

Nutrient removal using spent coconut husks

Core–shell TiO2@C ultralong nanotubes with enhanced adsorption of antibiotics

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Product

Resources

About

Core–shell TiO₂@C ultralong nanotubes with enhanced adsorption of antibiotics