Application of potato (Solanum tuberosum) plant wastes for the removal of methylene blue and malachite green dye from aqueous solution

Gupta, Neha; Kushwaha, Atul Kumar; Chattopadhyaya, M. C.

doi:10.1016/j.arabjc.2011.07.021

Cited by 263 publications

(75 citation statements)

References 38 publications

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“…WGT biomass treated with HCl led to a decrease of adsorption efficiency (from 89% for untreated material to 75% for HCl treatment), fact which can be attributed to the decrease in electronegativity of the biosorbent surface due to the presence of the residual H + ions 47,48 Due to the fact that generally, the acid treatments lead to a decrease of adsorption, the still high values of adsorption efficiency obtained could be associated with the amount of organic matter present in the treated biomass. 49 H 3 PO 4 and H 2 SO 4 treatments were considered due to the fact that a different material can be obtained, activated carbon (or biochar), which is commonly utilized due to its large adsorption capacity, fast adsorption kinetics, and relatively ease of regeneration.…”

Section: The Effect Of Chemical Treatments Of Wgt Biomass Onto Mg mentioning

confidence: 99%

Adsorptive Removal of Malachite Green from Model Aqueous Solutions by Chemically Modified Waste Green Tea Biomass

Indolean

Burcă²,

Măicăneanu³

2017

ACSi

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The adsorption of malachite green (MG) from aqueous solution by waste green tea (WGT) biomass was investigated. A series of experiments in batch conditions were conducted in order to assess the MG removal on WGT, following adsorbent quantity and temperature influences. Maximum removal efficiency for untreated WGT was 89% (4 g biomass, 100 mL solution of 94 mg/L, 316 K). It was found that the adsorption of MG increased by increasing temperature from 296 to 316 K. Thermodynamic parameters (ΔH°, ΔS°, ΔG°) were calculated, and indicated that dye adsorption onto the studied biomass was endothermic and non-spontaneous. Six chemical treatments were tested (four acidic -H 3 PO 4 , H 2 SO 4 , HCl, and tartaric acid, one oxidant -H 2 O 2 , and one basic -NaOH) in order to study the chemical groups responsible for MG adsorption onto WGT biomass. The alkali and acidic treatments led to an increase of adsorption efficiency up to 92% and 95% (H 2 SO 4 ) respectively. The FTIR spectroscopy results emphasized the modifications of the biomass surface and how these are influencing the adsorption process.

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Section: The Effect Of Chemical Treatments Of Wgt Biomass Onto Mg mentioning

confidence: 99%

Adsorptive Removal of Malachite Green from Model Aqueous Solutions by Chemically Modified Waste Green Tea Biomass

Indolean

Burcă²,

Măicăneanu³

2017

ACSi

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“…In addition to its application in dyeing industries, Rh-B in combination with Uramine-O (a basic dye) is used as a biological stain widely used in biomedical research laboratories as well as in the dyeing of leather and paper. Various techniques, such as adsorption [4], coagulation/flocculation [5,6], photocatalytic processes [7,8], membrane technology [9,10] and biological treatments [11,12] have been employed to remove dyes from wastewater. Other conventional methods employed in removing dyes include oxidation or ozonation and membrane separation.…”

Section: Introductionmentioning

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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“…Error function analysis, in this regard, can be effectively used to evaluate the best fit of the isotherm to the experimental equilibrium data [30]. Equations used to calculate error functions are as follows [29]: Average relative error (ARE): …”

Section: Error Analysismentioning

confidence: 99%

Sorption characteristics of peat of Brunei Darussalam V: removal of Congo red dye from aqueous solution by peat

Zehra

Priyantha

Lim

et al. 2015

Desalination and Water Treatment

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A B S T R A C TPeat collected from Panaga, Brunei Darussalam, shows strong affinity towards the adsorption of Congo red (CR) dye from aqueous solution. The adsorption capacity of Bruneian peat under optimized conditions of shaking time, settling time, and medium pH is determined to be 10.1 mg g −1 at equilibrium. Adsorption of CR on Bruneian peat follows monolayer adsorption with small contribution to multilayer formation qualifying the validity of the Redlich-Peterson model, which is further supported by error function determination. In addition, changes in peat structure and surface were studied using scanning electron microscopic and X-ray fluorescence techniques. Kinetics studies were in agreement with the pseudo-second-order model and the adsorption reaction proceeds according to intra-particle diffusion.

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Application of potato (Solanum tuberosum) plant wastes for the removal of methylene blue and malachite green dye from aqueous solution

Cited by 263 publications

References 38 publications

Adsorptive Removal of Malachite Green from Model Aqueous Solutions by Chemically Modified Waste Green Tea Biomass

Adsorptive Removal of Malachite Green from Model Aqueous Solutions by Chemically Modified Waste Green Tea Biomass

Scavenging Rhodamine B dye usingmoringa oleiferaseed pod

Sorption characteristics of peat of Brunei Darussalam V: removal of Congo red dye from aqueous solution by peat

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