Evaluation of the potential cationic dye removal using adsorption by graphene and carbon nanotubes as adsorbents surfaces

Elsagh, A; Moradi, Omid; Fakhri, Ali; Najafi, Fahimeh; Alizadeh, Reza; Haddadi, Vahid

doi:10.1016/j.arabjc.2013.11.013

Cited by 54 publications

(28 citation statements)

References 37 publications

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“…The results of adsorption of both cationic dyes indicated that the removal was more effective using GO as adsorbent, which was attributed to the surface oxygenated groups. Similar behavior of results had the experiment reported by Elsagh [46] on the removal of BR 46 onto GE and GO. In the adsorption process, the physisorption was found to be the main adsorption mechanism.…”

Section: Graphene and Graphene Oxide As Adsorbent Of Organic Pollutansupporting

confidence: 89%

“…However, these methods present low removal efficiency. Adsorption process is the most widely used method for water treatment due to its low cost, ease of operation, efficiency in treatment [46], environmentally friendly [47], and adsorbents can be regenerated through a desorption process. Besides, adsorption does not generate the formation of harmful substances [48].…”

Section: Graphene and Graphene Oxide As Adsorbent Of Heavy Metals Fromentioning

confidence: 99%

“…Elsagh [46] investigated the elimination of cationic dye Basic Red 46 (BR46) from aqueous solutions using as adsorbents GO, graphene, single-walled CNT (SWCNT), carboxylate group functionalized SWCNT (SWCNT-COOH). The adsorption kinetic data of GE and GO were well fitted to the pseudo-second-order model, while the experimental data of SWCNT and SWCTN-COOH were best fitted to the pseudo-first-order model.…”

Section: Carbon Nanomaterials Vs Graphene As Adsorbentsmentioning

confidence: 99%

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Graphene Materials to Remove Organic Pollutants and Heavy Metals from Water: Photocatalysis and Adsorption

Pérez‐Ramírez¹,

Luz‐Asunción²,

Martínez-Hernández³

et al. 2016

Semiconductor Photocatalysis - Materials, Mechanisms and Applications

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Since graphene was isolated from graphite, different researches have been developed around it. The versatility of graphene properties and their derivates, such as graphene oxide or doped and functionalized graphene materials have expanded the possible applications of these nanostructures. The areas studied of graphene include the following nanocomposites, drug delivery, transistors, quantum dots, optoelectronic, storage energy, sensors, catalyst support, supercapacitors, among others. However, other important field of these materials is their applications in environment, mainly in the removal of pollutants in water. In this context, there are two possible alternatives to use graphene materials in water purification photocatalysis and adsorption. In the first case, the key is related to the bandgap and semiconductors properties of these materials, also the versatility of different graphene structures after the oxidation or functionalization, play an important role to get different arrangements useful in photocatalysis and avoid recombination, one of the problems of typical semiconductors photocatalysts. In the second case, surface area and useful chemical groups in carbon material give different options to produce efficient adsorbents depending on different synthesis conditions. Thus, this book chapter covers a review of the photocatalytic activity of graphene materials with emphasis in the removal of organic pollutants and heavy metals from water, in the next topics graphene-based semiconductor photocatalyst and graphene oxide as photocatalyst. On the other hand, the chapter also discusses the research related to the removal of organic compounds and heavy metals using graphene materials as adsorbents, the topics in this second part are as follows graphene and graphene oxide as adsorbent of heavy metals from water, graphene, and graphene oxide as adsorbent of organic pollutants from water,

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Section: Graphene and Graphene Oxide As Adsorbent Of Organic Pollutansupporting

confidence: 89%

Section: Graphene and Graphene Oxide As Adsorbent Of Heavy Metals Fromentioning

confidence: 99%

Section: Carbon Nanomaterials Vs Graphene As Adsorbentsmentioning

confidence: 99%

See 1 more Smart Citation

Graphene Materials to Remove Organic Pollutants and Heavy Metals from Water: Photocatalysis and Adsorption

Pérez‐Ramírez¹,

Luz‐Asunción²,

Martínez-Hernández³

et al. 2016

Semiconductor Photocatalysis - Materials, Mechanisms and Applications

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“…AR119 adsorption isotherm. The adsorption isotherm models in the current experiment were determined through linear regressions of the Langmuir and Freundlich equations [29]. Fig.…”

Section: Initial Concentration Effectsmentioning

confidence: 99%

Grass-Like Structured Mesoporous Carbon as an Acid Red 119 Dye Adsorbent

Krisnandi¹,

Priantini²,

Faisal³

et al. 2019

Makara J. Sci

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Grass-like structured mesoporous carbon was prepared by the soft-template method using triblock copolymer Pluronic F127, affording an organic-organic composite structure between phloroglucinol and formaldehyde. Thermogravimetric analysis revealed that the as-synthesized mesoporous carbon is stable to 900°C, and X-Ray Diffraction (XRD) analysis confirmed the presence of carbon material structures at 2θ values of 22.020° and 42.420°. A hysteresis loop at relative partial pressures (P/P o ) between 0.45 and 0.85 was observed in the N2 adsorption isotherm, indicating that the solid material exhibits mesoporous characteristics, with a homogeneous pore size distribution of 8.863 nm. Scanning Electron Microscope (SEM) images revealed that the bulk carbon surface exhibits a uniform grass-like structure. Furthermore, the as-synthesized mesoporous carbon was investigated for the adsorption of a diazo dye Acid Red 119, and it exhibited an adsorption capacity of 217.7389 mg/g; this capacity is 1.53 times greater than that of commercial activated carbon. Therefore, this mesoporous carbon is a potential adsorbent for the treatment of synthetic coloring waste.

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“…Other treatment methods can be operated during the process of wastewater of dyes removal not better than adsorption method with some factors such as cost, efficiency, operation system and so on. Besides, industrial wastewater for color removal can be treated biologically, chemically and physically [5]. As dyes are being produced in industry and later going for usage of the consumer product.…”

Section: Introductionmentioning

confidence: 99%

The Treatment of Industrial Effluents for the Discharge of Textile Dyes Using by Techniques and Adsorbents

Rahman¹

2015

J Textile Sci Eng

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dyes are located in subcontinents for example India, Pakistan, Bangladesh, Sri-Lanka and some other countries. Now, this sector still has a big influence of scattering the latest design of any fabric throughout the world within a short period of time and great potential of unutilized materials which are undiscovered and inherently related to the textile productions like yarns, cottons, fabrics, garments and so forth. AbstractNowadays, the extraction of textile dyes from the wastewater in industry becomes an environmental worldwide issue. Water contamination is a big threat of not only for state of the environment but human body causes some chronic diseases. Textile dyes are worn to several types of products by fabrication, for paper, leather, plastic and some products, used in human daily life. Despite of containing various hazardous chemicals into textile dyes, it is necessary to be discharged from effluents of waste-water of industry through treatment as quick as possible. A number of technologies of different processes are effectively carried out for the treatment of industrial waste water by removal of colors. A variety of textile dyes is having different chemical structure with different properties dealing with the activity of industrial reaction. By reviewing of effects of textile dyes such as toxicity and mutagenicity, bacteria and organism embedded a prologue of the expulsion of metals to the environment. Certainly, for the dominion of textile dyes removal, adsorption can be regarded as effective method used by activated carbon, bentonite clay as adsorbent for the wastewater treatment in industry. Predominantly, it is a critical review of literature conferred the removal of textile dyes for the treatment of industrial wastewater by using techniques, technologies, adsorbents thoroughly. Certainly, Adsorption is the sole and ultimate approach for removal of textile dyes through the industrial wastewater treatment. This literature shows the feasibility of minimum cost adsorbent in term of maximum outcome of industrial wastewater treatment for textile dyes removal.

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Evaluation of the potential cationic dye removal using adsorption by graphene and carbon nanotubes as adsorbents surfaces

Cited by 54 publications

References 37 publications

Graphene Materials to Remove Organic Pollutants and Heavy Metals from Water: Photocatalysis and Adsorption

Graphene Materials to Remove Organic Pollutants and Heavy Metals from Water: Photocatalysis and Adsorption

Grass-Like Structured Mesoporous Carbon as an Acid Red 119 Dye Adsorbent

The Treatment of Industrial Effluents for the Discharge of Textile Dyes Using by Techniques and Adsorbents

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