Methylene blue adsorption on activated carbon prepared from Posidonia oceanica (L.) dead leaves: Kinetics and equilibrium studies

Dural, Mehmet Ulas; Çavaş, Levent; Papageorgiou, Sergios K.; Katsaros, Fotios K.

doi:10.1016/j.cej.2010.12.038

Cited by 323 publications

(113 citation statements)

References 64 publications

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“…Additionally, it is important to note that for methylene blue adsorption, activated carbon manufactured from biomass precursors showed a better uptake performance than the adsorbent used in this work (Ahmed and Dhedan, 2012;Cazetta et al, 2011;Dural et al, 2011;Foo and Hameed, 2011a, 2011bHameed et al, 2007aHameed et al, , 2007bLi et al, 2013;Olorundare et al, 2014;Pezoti et al, 2014;Vargas et al, 2011) (see Table SII in supplementary material), a bituminous coal-based activated carbon (i.e. mineral origin precursor).…”

Section: Equilibrium Adsorption Testsmentioning

confidence: 99%

Phenol and methylene blue adsorption on heat-treated activated carbon: Characterization, kinetics, and equilibrium studies

Sáenz-Alanís

García-Reyes

Soto-Regalado

et al. 2017

Adsorption Science & Technology

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A comprehensive study was performed for a thermally treated activated carbon to evaluate the influence of this treatment on the physical and chemical properties of the mineral activated carbon, as well as the adsorption toward phenol and methylene blue. After the heat treatment, surface area decreased and total pore volume diminished about 8.5%, and the total basic groups decreased 18% while the total acid groups increased 8% in comparison with the raw activated carbon. Equilibrium adsorption of phenol and methylene blue was described well with the Freundlich and Langmuir isotherm models, respectively. Adsorption kinetics of phenol and methylene blue was predicted adequately with the empirical pseudo-second-order model, the intraparticle diffusion model, and the homogeneous solid diffusion model, but mass transfer coefficients of the diffusion models help to better understand the adsorption phenomenon. Intraparticle diffusion seems to be the ratecontrolling step in the adsorption process, and heat-treated activated carbon in an inert atmosphere was a better adsorbent for both phenol and methylene blue than raw activated carbon.

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Section: Equilibrium Adsorption Testsmentioning

confidence: 99%

Phenol and methylene blue adsorption on heat-treated activated carbon: Characterization, kinetics, and equilibrium studies

Sáenz-Alanís

García-Reyes

Soto-Regalado

et al. 2017

Adsorption Science & Technology

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“…Activated carbon is used most widely in adsorption processes as it can be produced both from renewable and non-renewable resources with low cost (Tay et al 2012). The low-cost activated carbons obtained from renewable agricultural wastes, and by-products so far include flamboyant pods (Vargas et al 2011), soybean oil cake (Tay et al 2012), cashew nut shell (Kumar et al 2011), Posidonia oceanic leaves (Dural et al 2011), date pits , bamboo (Hameed et al 2007), oil palm wood ), sour cherry stones (Angın 2014), date stones , Jatropha curcas fruit shell (Tongpoothorn et al 2011), rise husks (Yalçın and Sevinç 2000), peach stones (Attia et al 2008) and orange peel (Khaled et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Removal of crystal violet and methylene blue from aqueous solutions by activated carbon prepared from Ferula orientalis

Aysu

Küçük

2014

Int. J. Environ. Sci. Technol.

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Ferula orientalis L. stalks were used as an agricultural solid biomass waste for preparation of activated carbon with zinc chloride activation using slow pyrolysis in a fixed-bed reactor. The chemical characteristics of the activated carbon obtained at 550°C were identified by elemental, fourier transform infrared spectroscopy, Brunauer-Emmett-Teller, scanning electron microscopy analyses and found to have a surface area of 1,476 m 2 /g. The ability of the activated carbon to adsorb methylene blue and crystal violet from aqueous solutions has been investigated. Adsorption studies were performed at different initial dye concentrations (200-800 ppm), contact time (0.5-90 min) and temperature (25-45°C). Adsorption data were modeled with Langmuir, Freundlich and Temkin adsorption isotherms. Equilibrium data of the adsorption processes showed that adsorption of methylene blue is fitted to the Langmuir and crystal violet to the Freundlich isotherm. Pseudo-first-order, pseudo-secondorder and Elovich kinetic models were used to analyze the kinetic data obtained at different initial dye concentrations. The adsorption kinetic data were very well described by the pseudo-second-order model. The calculated thermodynamic parameters such as change in free energy, enthalpy and entropy showed that adsorptions of both dyes onto activated carbon were spontaneous and endothermic under the experimental conditions.

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“…On the other hand, the total primary production of sea plant p. oceanicu (L) in the Mediterranean basin alone has been estimated in the range of 5-50 million tons per year [55]. In the United States, about 30 million tons of oak leaves are collected and burned every year.…”

Section: Adsorbent Resourcesmentioning

confidence: 99%

Low-cost Adsorbents Derived from Agricultural By-products/Wastes for Enhancing Contaminant Uptakes from Wastewater: A Review

Sulyman

Namieśnik

Gierak

2017

Pol. J. Environ. Stud.

209

112

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A major threat to the comfort of human life has been imposed by increased industrialization and urbanization. The generation and disposal of huge amounts of toxic materials and pollutants have heavily contaminated our environment. Some Organics such as synthetic dyes (SD) and heavy metals (HM) are becoming increasingly prevalent as the most dangerous pollutants in soil and surface water environments. They are causing great concern worldwide due to their toxicity to many life forms.Environmentally friendly utilization of agricultural by-products/waste materials either as raw materials or in production of so-called activated carbons (AC) is an important issue. Because it is apparent from our literature review that the main factors characterizing these materials are their affordability, local availability, and efficiencies in removing many unwanted toxics and pollutants, they therefore could be utilized instead of more conventional but expensive adsorbent materials, particularly in developing countries where many industries lack appropriate individual sewage treatment systems; even where they exist, they lack satisfactory functioning and maintenance because of the lack of good budgets.A number of case studies are supplied in this review. These case studies have pointed to the efficient removal of SD/HM ions from aqueous solutions by the agricultural by-products/wastes in the form of a raw material, signifying spent tea leaves (STL) as a good example. Besides, the efficient removal of such ions by AC produced from these agricultural by-products/wastes has also been given in detail, suggesting a variety of AC agricultural by-products/wastes sources. Both kinds are widely used adsorbents in the treatment of wastewaters. Our review has shown that these adsorbents are characterized by many exceptional physical and chemical features that make them widely used adsorbents in the treatment of wastewaters. The adsorption efficiencies by these substances were also affected by the characteristics of AC, which depend on the physical and chemical properties of the precursor (i.e., agricultural by-products/wastes) as well as on the activation method applied, which is either chemical or physical. The structural properties of the resulting

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Methylene blue adsorption on activated carbon prepared from Posidonia oceanica (L.) dead leaves: Kinetics and equilibrium studies

Cited by 323 publications

References 64 publications

Phenol and methylene blue adsorption on heat-treated activated carbon: Characterization, kinetics, and equilibrium studies

Phenol and methylene blue adsorption on heat-treated activated carbon: Characterization, kinetics, and equilibrium studies

Removal of crystal violet and methylene blue from aqueous solutions by activated carbon prepared from Ferula orientalis

Low-cost Adsorbents Derived from Agricultural By-products/Wastes for Enhancing Contaminant Uptakes from Wastewater: A Review

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