Adsorptive uptake of basic dyes from aqueous solution by novel brown linseed deoiled cake activated carbon: Equilibrium isotherms and dynamics

Khan, Tabrez Alam; Khan, Equbal A.; Shahjahan, Md

doi:10.1016/j.jece.2016.06.009

Cited by 58 publications

(17 citation statements)

References 59 publications

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“…However, q e decreased from 183.50 to 61.70 mg/g for MV and 241.00 to 63.70 mg/g for MG with increased IMGO dose from 0.20 to 0.90 g/L. At lower dose, all the of the adsorption sight were saturated during adsorption; on the other hand, at higher dose some active sites remained free that might be responsible for the decrease in q e with increase in the amount of IMGO [11]. The maximum adsorption was found at 0.7 g/L IMGO dose.…”

Section: Effect Of Imgo Dosesmentioning

confidence: 94%

Synthesis of magnetic iron‐manganese oxide coated graphene oxide and its application for adsorptive removal of basic dyes from aqueous solution: Isotherm, kinetics, and thermodynamic studies

Khan¹,

Shahjahan²,

Khan

2018

Env Prog and Sustain Energy

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Adsorptive removal of cationic dyes such as methyl violet (MV) and methyl green (MG) from aqueous solution using magnetic iron‐manganese oxide coated graphene oxide (IMGO) was examined. The IMGO was characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X‐ray spectroscopy, X‐ray diffraction (XRD), N2 adsorption–desorption isotherm, and vibrating sample magnetometer. The effect of different process parameters such as contact time, IMGO dose, initial dyes concentration, initial solutions pH, and temperature was investigated. The equilibrium experimental data were fitted with Langmuir, Freundlich, Dubinin–Radushkevich (D‐R), and Temkin isotherm models. The data fitted well with Freundlich isotherm model suggesting multilayer adsorption of dyes onto heterogeneous adsorbent surface. The Langmuir adsorption capacity (Qm, mg/g) of IMGO with MV and MG was 172.96 and 195.64, respectively. The data obeyed the pseudo‐second order kinetic model, and the mechanism of adsorption was controlled by both intra‐particle and liquid film diffusion models. The adsorption process was found to be spontaneous, endothermic, and physical in nature. The dye‐loaded IMGO was regenerated and used for at least four cycles without any substantial loss of its efficacy. The present adsorptive removal studies of MV and MG revealed that IMGO is an effective and efficient adsorbent for the removal of basic dyes from aquatic system. © 2018 American Institute of Chemical Engineers Environ Prog, 38: S214–S229, 2019

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Section: Effect Of Imgo Dosesmentioning

confidence: 94%

Synthesis of magnetic iron‐manganese oxide coated graphene oxide and its application for adsorptive removal of basic dyes from aqueous solution: Isotherm, kinetics, and thermodynamic studies

Khan¹,

Shahjahan²,

Khan

2018

Env Prog and Sustain Energy

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“…As such, there has been an increase in research into cheaper and more readily available adsorbents [14]. Some of the non-conventional, low cost adsorbents that have been utilized for the removal of dyes and other pollutants from wastewater include durian seed [15,16], mango leaf [17], wheat husk [18], coconut shell [19], periwinkle shell [20], Indian spinach leaf, bottom ash and de-oiled soya [21][22][23], brown linseed deoiled cake [24], waste tyre [25], native and citric acid modified bamboo sawdust [26], chir pine (Pinus roxburghii) sawdust [27], magnetic chitosan-bamboo sawdust composite [28], Multiwalled carbon nanotubepolyurethane (MWCNT/PU) composite [29], Magnetically modified multiwalled carbon nanotubes [30], magnesium oxide-coated kaolinite [31].…”

Section: Adsorption Experimentsmentioning

confidence: 99%

Scavenging Rhodamine B dye usingmoringa oleiferaseed pod

Bello

Lasisi

Adigun

et al. 2017

Chemical Speciation & Bioavailability

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Moringa oliferia seed pod was modified using orthophosphoric acid (H 3 PO 4 ) and used as adsorbent for sequestering Rhodamine B (Rh-B) dye from aqueous solution. The acid-modified adsorbent (MOSPAC) was characterized using Scanning Electron microscopy (SEM), Fourier Transform Infra Red (FTIR), Energy Dispersive X-ray (EDX), pH point of zero charge (pH pzc ) and Boehm Titration (BT) techniques, respectively. Operational parameters such as contact time, initial dye concentration, adsorbent dosage, pH and solution temperature were studied in batch process. Optimum dye adsorption was observed at pH 3.01. Equilibrium adsorption data was tested data using four different isotherm models: Langmuir, Freundlich, Temkin and DubininRadushkevich. Langmuir isotherm model fitted most with maximum monolayer adsorption capacity of 1250 mg g -1. Pseudo-second-order kinetic model provided the best correlation for the experimental data. Thermodynamic study showed that the process is endothermic, spontaneous and feasible. MOSPAC is an effective adsorbent for the removal of RhB dye from aqueous solutions.

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“…The techniques, methods and procedures reported in the literature for remediation of synthetic dyes can be broadly classified into three major groups; these are biological, chemical and physical methods. Use of microorganisms [8][9][10][11][12][13], nano materials [14][15][16][17][18], blends and polymers [19][20][21] and degradation techniques such as sonochemical [22], electrochemical [23] and oxidative degradation [24] are reported in the literature. These methods have such problems as high quantity of cost, operational difficulties including creation of toxic intermediates, lower quantity of removal and increased specificity for some dyes and such others [25].…”

Section: Introductionmentioning

confidence: 99%

Nutraceutical industrial chillies stalk waste as a new adsorbent for the removal of Acid Violet 49 from water and textile industrial effluent: adsorption isotherms and kinetic models

Yakuth

Taqui

Syed

et al. 2019

Desalination and Water Treatment

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a b s t r a c tFirst-ever study on the adsorption of Acid Violet 49 (AV49) dye, onto nutraceutical industrial chillies stalk waste (NICSW) is reported. A two-level fractional factorial experiment design and analysis of variance (ANOVA) were adopted to study how initial concentration of the dye, adsorbent dosage, duration of adsorption process, speed of agitation, pH of the reaction mixture and temperature affect the adsorption process. The adsorption capacity of NICSW at equilibrium was analyzed using Langmuir, Freundlich, Jovanovic, Temkin, Dubinin-Radushkevich and Harkins-Jura isotherms. The pseudo-first-order and pseudo-second-order models were considered for kinetic studies. Maximum adsorption capacity of 45.40 mg/g was obtained by Langmuir isotherm as against the experimental value of 29.00 mg/g, with correlation coefficient of 0.979 at near neutral pH. NICSW was characterized by Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller, scanning electron microscope and energy dispersive X-ray spectroscopy. Elemental (C, H, N, S) analyses of the adsorbent were conducted. Along with thermodynamic parameter evaluation such as Gibb's free energy, enthalpy and entropy and results of the surface characterization showed that the dye adsorption onto the biosorbent has taken place such as a physical process. These results proved that NICSW is a fast and effective adsorbent to remove AV49 from water and textile industrial effluent.

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Adsorptive uptake of basic dyes from aqueous solution by novel brown linseed deoiled cake activated carbon: Equilibrium isotherms and dynamics

Cited by 58 publications

References 59 publications

Synthesis of magnetic iron‐manganese oxide coated graphene oxide and its application for adsorptive removal of basic dyes from aqueous solution: Isotherm, kinetics, and thermodynamic studies

Synthesis of magnetic iron‐manganese oxide coated graphene oxide and its application for adsorptive removal of basic dyes from aqueous solution: Isotherm, kinetics, and thermodynamic studies

Scavenging Rhodamine B dye usingmoringa oleiferaseed pod

Nutraceutical industrial chillies stalk waste as a new adsorbent for the removal of Acid Violet 49 from water and textile industrial effluent: adsorption isotherms and kinetic models

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