Adsorption of a textile dye from aqueous solutions by carbon nanotubes

Machado, Fernando Machado; Bergmann, Carlos Pérez; Lima, Éder C.; Adebayo, Matthew A.; Fagan, Solange B.

doi:10.1590/s1516-14392013005000204

Cited by 45 publications

(24 citation statements)

References 28 publications

(66 reference statements)

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“…Therefore, the maximum adsorption capacities were 502.5 and 567.7 mg g -1 for MWCNT and SWCNT. The enthalpy (∆H°) of adsorption implied which adsorption was the process that was an endothermic and the consequence of enthalpy was consistent with an electrostatic interaction of an adsorbent with the dye [37].…”

Section: Removal Of Textile Dyes By Adopting Adsorbents 3carbon Nanotmentioning

confidence: 92%

“…It is so efficient of fading for many dyes. Afterwards, iron (Fe) (ll) or iron (Fe) (lll) oxalate ion, UV light and Hydrogen peroxide have received a focus of lightening for especially synthetic dyes [37][38][39]. But about of the silt generation is a major disadvantage of this technique through flocculation of molecules of dyes.…”

Section: Y Ymentioning

confidence: 99%

“…Additionally, more adsorptions does not access in further steps. So, the Langmuir model exemplifies the equilibrium division of metal ions occurred in between the phase of solid and liquid [37]. The Langmuir isotherm is accurate to the monolayer adsorption.…”

Section: Tahir Et Al Discussed Physiochemical Modification Andmentioning

confidence: 99%

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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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Section: Removal Of Textile Dyes By Adopting Adsorbents 3carbon Nanotmentioning

confidence: 92%

Section: Y Ymentioning

confidence: 99%

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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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“…It is well known that the use of microwave route for the preparation of powdered catalysts presents as great advantages short synthesis time and production of high surface area particles, being this last characteristic of great importance for catalytic purposes 24,25 . NiFe 2 O 4 is a cubic oxide with a typical inverse spinel structure and has attracted much interest because of its fascinating magnetic and electromagnetic properties 26 , while the MWCNTs have attracted increasing research interest as dye adsorbent 27 , support for enzyme immobilization 28 and catalyst support 29 .…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nickel Ferrite/Carbon Nanotubes Composite by Microwave Irradiation Technique for Use as Catalyst in Photo-Fenton Reaction

et al. 2017

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Nickel ferrite/multi-walled carbon nanotubes (NiFe 2 O 4 /MWCNTs) composite has been rapidly synthesized via microwave irradiation technique. The structural properties of the product was investigated by X-ray diffraction (XRD), N 2 adsorption/desorption isotherms, thermogravimetric analysis (TGA), Raman spectroscopy and, scanning electron microscopy (SEM). Catalytic behavior of the composite material on the advanced photo-Fenton degradation of Amaranth dye was evaluated. The synthesis conditions employed on the microwave system were: temperature (235 °C), power (500 W), pressure (600 psi) and irradiation time (30 min). Characterization results showed the formation of hybrid material, containing a predominantly microporous structure, with surface area and total pore volume of 54 m 2 g -1 and 0.2249 cm 3 g -1 , respectively. The composite exhibited higher catalytic activity compared to the pure NiFe 2 O 4 , reaching 100% of decolorization at 60 min of reaction, which can be attributed to a synergism between NiFe 2 O 4 and MWCNTs. Therefore, NiFe 2 O 4 /MWCNTs composite can be used as a promising photo-Fenton catalyst to degrade Amaranth dye from aqueous solutions.

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“…The most effi cient method used for the quickly removal of dyes from the aqueous solution is the physical adsorption [8]. Biosorbents, such as wood sawdust [9], waste-biomass [10], delonix regia [11], agricultural solid waste [12], are able to remove effi ciently the colour from water.…”

Section: Introductionmentioning

confidence: 99%

Removal of Methylene Blue by Adsorption onto Retama Raetam Plant: Kinetics and Equilibrium Study

Badis¹,

Benmaamar²,

Benkortbi³

et al. 2016

ChemJMold

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Abstract. The feasibility of using medicinal plants species Retama raetam as a low cost and an eco-friendly adsorbent for the adsorption of cationic dye methylene blue from simulated aqueous solution has been investigated. Adsorption kinetics of methylene blue onto Retama raetam plants was studied in a batch system. The effects of pH and contact time were examined. The methylene blue maximum adsorption occurred at pH 8 and the lowest adsorption occurred at pH 2. The apparent equilibrium was reached after 120 min. Optimal experimental conditions were determined. Adsorption modelling parameters for Freundlich and Langmuir isotherms were determined and, based on R 2 , various error distribution functions were evaluated as well. Adsorption isotherm was best described by non linear Freundlich isotherm model. Thermodynamic studies show that adsorption was spontaneous and exothermic. For determining the best-fi t-kinetic adsorption model, the experimental data were analyzed by using pseudo-fi rst-order, pseudo-second-order, pseudo-third-order, Esquivel, and Elovich models. Linear regressive and non-linear regressive method was used to obtain the relative parameters. The statistical functions were estimated to fi nd the suitable method that fi t better the experimental data. Both methods were appropriate for obtaining the parameters. The linear pseudo-second-order (type 9 and type 10) models were the best to fi t the equilibrium data. The present work showed that plant Retama raetam can be used as a low cost adsorbent for the removal of methylene blue from water.Keywords: Retama raetam, methylene blue, removal, modelling, adsorption. IntroductionThe textile industry is one of industrial waste water source. This contaminated water is very toxic for the humans and animals [1]. Methylene blue is used in colouring paper, dyeing cottons, wools, silk, leather and coating for paper stock. Although methylene blue is not strongly hazardous, it can cause some harmful effects, such as heartbeat increase, vomiting, shock, cyanosis, jaundice, quadriplegia, and tissue necrosis in human organisms [2].Chemical coagulation-fl occulation [3], different types of oxidation processes [4], biological process [5], membrane-based separation processes [6] and adsorption [7] were the treatments used in the purifi cation of waters. The most effi cient method used for the quickly removal of dyes from the aqueous solution is the physical adsorption [8]. Biosorbents, such as wood sawdust [9], waste-biomass [10], delonix regia [11], agricultural solid waste [12], are able to remove effi ciently the colour from water.Retama raetam plants can be used as biosorbent. This species belonging to the Fabaceae family has a very productive vertical and horizontal root system, which can reach 20 m. This, in turn, increases substantially the stabilization of the soil. Moreover, the Retama species contributes to the biofertilisation of poor grounds, because of their aptitude to associate with fi xing nitrogen bacteria Rhizobia. Therefore, the genus of Retama is ...

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Adsorption of a textile dye from aqueous solutions by carbon nanotubes

Cited by 45 publications

References 28 publications

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

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

Preparation of Nickel Ferrite/Carbon Nanotubes Composite by Microwave Irradiation Technique for Use as Catalyst in Photo-Fenton Reaction

Removal of Methylene Blue by Adsorption onto Retama Raetam Plant: Kinetics and Equilibrium Study

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