Comparison the removal of reactive red 195 dye using powder and ash of barberry stem as a low cost adsorbent from aqueous solutions: Isotherm and kinetic study

Kamranifar, Mohammad; Khodadadi, Maryam; Samiei, Vida; Dehdashti, Bahare; Sepehr, Mohammad Noori; Rafati, Lida; Nasseh, Negin

doi:10.1016/j.molliq.2018.01.188

Cited by 57 publications

(18 citation statements)

References 34 publications

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“…DF = initial volume Selected volume for titration (2) where F x (mmol g −1 ) V bx , V ex , M t and DF are the total oxygen-containing functional groups, volume of titrant used to titrate the blank, volume of the titrant being used to titrate the extract, molarity of the titrant used and dilution factor, respectively. The textural properties of MA-AC400 were evaluated through frequently adopted nitrogen adsorption-desorption isotherm analysis at 77.30 K using a GEMINI VII 2390 surface area analyzer (Micromeritics Instrument Corp, Norcross, GA, USA).…”

Section: Textural Properties Of Ma-ac400mentioning

confidence: 99%

“…The multifaceted aromatic chemistry of such complex dyes offers resistance to biodegradation, resulting in incomplete mineralization, thus metabolites of varying toxicity are produced [1] which therefore increase the environmental health concerns. Presently, around 10,000 types and 700,000 tons of different dyes and pigments are manufactured worldwide annually with ever increasing trend [2]. The reactive dyes class represents a major share of commercial grade synthetic colorants due to their excellent capability of forming covalent bonding between the reactive groups of the dyes and the functional groups of substrates like cellulose in the case of textile products [3].…”

Section: Introductionmentioning

confidence: 99%

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Phosphoric Acid Activated Carbon from Melia azedarach Waste Sawdust for Adsorptive Removal of Reactive Orange 16: Equilibrium Modelling and Thermodynamic Analysis

et al. 2020

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Waste wood biomass as precursor for manufacturing activated carbon (AC) can provide a solution to ever increasing global water quality concerns. In our current work, Melia azedarach derived phosphoric acid-treated AC (MA-AC400) was manufactured at a laboratory scale. This novel MA-AC400 was tested for RO16 dye removal performance as a function of contact time, adsorbent dosage, pH, temperature and initial dye concentration in a batch scale arrangement. MA-AC400 was characterized via scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, dynamic light scattering (DLS) and fluorescence spectroscopy. MA-AC400 is characterized as mesoporous with BET surface area of 293.13 m2 g−1 and average pore width of 20.33 Å. pHPZC and Boehm titration confirm the acidic surface charges with dominance of phenolic functional groups. The average DLS particle size of MA-AC400 was found in the narrow range of 0.12 to 0.30 µm and this polydispersity was confirmed with multiple excitation fluorescence wavelengths. MA-AC400 showed equilibrium adsorption efficiency of 97.8% for RO16 dye at its initial concentration of 30 mg L−1 and adsorbent dose of 1 g L−1. Thermodynamic study endorsed the spontaneous, favorable, irreversible and exothermic process for RO16 adsorption onto MA-AC400. Equilibrium adsorption data was better explained by Langmuir with high goodness of fit (R2, 0.9964) and this fitness was endorsed with lower error functions. The kinetics data was found well fitted to pseudo-second order (PSO), and intra-particle diffusion kinetic models. Increasing diffusion constant values confirm the intraparticle diffusion at higher RO16 initial concentration and reverse was true for PSO chemisorption kinetics. MA-AC400 exhibited low desorption with studied eluents and its cost was calculated to be $8.36/kg.

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Section: Textural Properties Of Ma-ac400mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phosphoric Acid Activated Carbon from Melia azedarach Waste Sawdust for Adsorptive Removal of Reactive Orange 16: Equilibrium Modelling and Thermodynamic Analysis

et al. 2020

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“…They have toxic effects on health, many of them are considered as carcinogenic and mutagenic. [5][6] Also, colorization of water causes reduction in photosynthesis and afterwards adversely effects many organisms. 3,7 Reactive red 195 (RR195) is a monoazo, monochlorotriazine and vinylsulfone dye which is extensively used in dyeing processes.…”

Section: Introductionmentioning

confidence: 99%

“…1/q e =1/Q°b.1/C e +1/Q° (6) where Q° is the amount of dye adsorbed (mg g -1 ), which gives the maximum adsorption capacity of ESM and the Langmuir isotherm constant, b (l mg -1 ) is related to adsorption energy. The calculated Langmuir constants, Q o and b are given in Table 2.…”

mentioning

confidence: 99%

Optimization, isotherm and kinetics studies of azo dye adsorption on eggshell membrane

Dinçer

Sevildik

Aydemir

2019

International Journal of Chemistry and Technology

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Eggshell membrane (ESM) was used as an adsorbent for adsorption of reactive red 195 (RR195) and reactive black 5 (RB5) dyes from aqueous solutions. The experimental conditions were optimized via batch system experiments for maximum azo dyes removal. Adsorption of the dyes was pH dependent highly, and the maximum adsorption of RR195 and RB5 occurred at pH 3.0 and 2.0, respectively. For both dyes, the adsorption process was seen to be obeyed pseudo-second order kinetic and the Langmuir isotherm models. Maximum adsorption capacities (Q max) of ESM for RR195 dye and RB5 were found as 76.9 and 333.33 mg g-1 , respectively. The thermodynamic parameters were calculated and the adsorption of the dyes was found to be as exothermic and spontaneous. Moreover, the structural characterization of the ESM was performed by FTIR and SEM analysis.

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“…4). It was observed that dye removal efficiency increased with contact time up to 60 min for reactive red dye (Belala et al, 2011) and remains constant on further increase of contact time due to the availability of vacant sites during the initial stage and non-availability of vacant sites after the attainment of equilibrium (Kamranifar et al, 2018). In case of deep marine blue removal efficiency increased up to 45 min and remained constant on further increase in time.…”

Section: R Manimaran Et Al: Biosorption Of Dyes By Waste Papaya mentioning

confidence: 99%

Biosorption of synthetic dyes from textile industrial effluent using waste papaya latex

Manimaran¹,

Sarojini²,

Prabavathy³

2019

JEB

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The effect of pH, adsorbent concentration, time, initial dye concentration and agitation speed on adsorption capacity of papaya latex as an adsorbent was investigated. The biosorption experiments were carried out in batch process by means of conical flask and agitated in a thermostated shaking incubator at rpm for a suitable contact time at different temperature range. The experiments were carried out at different pH (4-9), fixed biosorbent dosage, temperature, contact time, initial dye concentration and agitation speed. The samples were withdrawn at regular intervals and the concentration of dyes were analyzed using a UV-Visible spectrometer. The adsorption studies revealed that papaya latex removed about 83.18% of the reactive red dye and 87.97% of deep marine blue dye from aqueous phase under optimal conditions. The maximum adsorption of both dyes was found at pH 4. Adsorption isotherms such as Langmuir, Freundlich, Temkin and Dubin models were attempted to predict equilibrium data. The pseudo-first-order kinetics provide the best correlation of experimental data. Waste papaya latex can be used as an eco-friendly and low-cost adsorbent in removal of reactive red dye and deep marine blue from textile effluent. Deep marine blue dye, Kinetics, Isotherm, Papaya latex, Reactive red dye Biosorption of synthetic dyes from textile industrial effluent using waste papaya latex

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Comparison the removal of reactive red 195 dye using powder and ash of barberry stem as a low cost adsorbent from aqueous solutions: Isotherm and kinetic study

Cited by 57 publications

References 34 publications

Phosphoric Acid Activated Carbon from Melia azedarach Waste Sawdust for Adsorptive Removal of Reactive Orange 16: Equilibrium Modelling and Thermodynamic Analysis

Phosphoric Acid Activated Carbon from Melia azedarach Waste Sawdust for Adsorptive Removal of Reactive Orange 16: Equilibrium Modelling and Thermodynamic Analysis

Optimization, isotherm and kinetics studies of azo dye adsorption on eggshell membrane

Biosorption of synthetic dyes from textile industrial effluent using waste papaya latex

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