Biosorptive removal of cationic dye from aqueous system: a response surface methodological approach

Sadhukhan, Bikash; Mondal, Naba Kumar; Chattoraj, Soumya

doi:10.1007/s10098-013-0701-8

Cited by 34 publications

(30 citation statements)

References 64 publications

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“…Therefore, their removal from industrial effluents has become a major concern. Several methods, including flocculation, coagulation (Verma et al 2012), ion exchange (Greluk and Hubicki 2013), membrane separation (Salima et al 2012;He et al 2008), photodegradation (Kusic et al 2013;Gomez-Solis et al 2012), extraction (Muthuraman et al 2009), chemical oxidation (Turgay et al 2011), biological treatment Turgay et al 2011;Kanagaraj et al 2015), and adsorption (Elemen et al 2012;Chen 2011;Sadhukhan et al 2014;Ozdemir et al 2014) were investigated for dye removal from wastewater.…”

Section: Introductionmentioning

confidence: 99%

Effective removal of methylene blue from aqueous solution using a new magnetic iron oxide nanosorbent prepared by combustion synthesis

Păcurariu

Paska

Ianoş

et al. 2015

Clean Techn Environ Policy

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A magnetic iron oxide nanopowder (MnP) prepared by a new combustion technique was characterized and tested as adsorbent for methylene blue (MB) removal from aqueous solution. The effects of pH, adsorbent dose, initial dye concentration, contact time, and temperature on the amount of MB adsorbed were studied. The adsorption kinetics were described by a pseudo-second-order model, and the equilibrium experimental data were well fitted to the Langmuir isotherm, yielding a maximum adsorption capacity of 25.54 mg g -1 . The adsorption mechanism is governed by electrostatic forces and is highly dependent on the pH. The MnP adsorbent demonstrated excellent stability, showing good removal efficiency even after eight cycles of reuse, suggesting its potential large-scale application for the removal and recovery of MB from wastewater.

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Section: Introductionmentioning

confidence: 99%

Effective removal of methylene blue from aqueous solution using a new magnetic iron oxide nanosorbent prepared by combustion synthesis

Păcurariu

Paska

Ianoş

et al. 2015

Clean Techn Environ Policy

View full text Add to dashboard Cite

show abstract

“…Researchers have investigated several techniques to remove dyes from aqueous phase efficiently, such as coagulation, biodegradation, photodegradation, adsorption (Forgacs et al 2004), ozonation (Vedaraman et al 2013), Fenton processes (Nidheesh et al 2013), and biosorption (Sadaf and Bhatti 2014;Sadhukhan et al 2014). Among them adsorption is a physicochemical method, which does not bring in secondary contaminants, and will save the cost for the water plants if the adsorbents are regenerated conveniently.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Rhodamine B dye by biomimetic mesoporous SiO2 nanosheets

Shen

Zhang

et al. 2015

Clean Techn Environ Policy

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Efficient treatment of solutions and solid wastes containing Rhodamine B (RB), a common dye with potential carcinogenicity and sometimes used illegally in food industry, is of great importance because inappropriate treatment may lead to serious human and environmental risks. A novel nanomaterial, the mesoporous silica nanosheets prepared via electrospinning and calcination are applied to the adsorption of RB from aqueous solutions in this work. This sheet-like material is superior to classic powder adsorbents in recoverability, while good availability and stability favor its practical application. The effects of key parameters such as system pH, stirring rate, initial concentration, and contact time are studied. The adsorption isotherm type and the kinetic characteristic are analyzed. The results show that the mesoporous SiO 2 nanosheets are efficient in removing RB from aqueous phase, presenting great potential to become a practical dye adsorbent. Regeneration experiments show that this novel adsorbent can be activated by ethanol extraction process. This study provides the academic field with a successful application case of nanostructured materials, which can be applied to a wider range of dyes similar to RB in physicochemical properties, showing prosperous value in advanced environmental purification.

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“…Several studies have reported different methods for dye removal from aqueous solutions such as photochemical degradation, biological degradation, coagulation-flocculation, chemical oxidation, adsorption, membrane separation process, electrochemical, reverse osmosis, aerobic and anaerobic microbial degradation, but their shortcomings have limited their applications (Majumdar et al 2015;Das et al 2013;Sadaf and Bhatti 2014;Sadhukhan et al 2014;Shen et al 2015). Adsorption has proved to be the most effective physicochemical method in removing dye from effluents with activated carbon as the most widely used adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Novel biosynthesized silver nanoparticles from cobweb as adsorbent for Rhodamine B: equilibrium isotherm, kinetic and thermodynamic studies

et al. 2018

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This study has investigated the adsorption of Rhodamine B (Rh-B) dye on novel biosynthesized silver nanoparticles (AgNPs) from cobweb. The effects of contact time, initial pH, initial dye concentration, adsorbent dosage and temperature were studied on the removal of Rh-B and they significantly affected its uptake. Adsorption isotherms were evaluated using Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherm models. The adsorption process was best described by Langmuir isotherm with R 2 of 0.9901, indicating monolayer adsorption. The maximum adsorption capacity (q max ) of 59.85 mg/g showed that it has relatively high performance, while adsorption intensity showed a favourable adsorption process. Pseudo-secondorder kinetics fitted best the rate of adsorption and intra-particle diffusion revealed both surface adsorption and intra-particle diffusion-controlled adsorption process. Negative values of thermodynamic parameters (∆H°, ∆S° and ∆G°) indicated an exothermic and spontaneous adsorption process. The mean sorption energy (E) and activation energy (E a ) suggested the uptake of Rh-B onto AgNPs was chemical in nature (chemosorption).

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Biosorptive removal of cationic dye from aqueous system: a response surface methodological approach

Cited by 34 publications

References 64 publications

Effective removal of methylene blue from aqueous solution using a new magnetic iron oxide nanosorbent prepared by combustion synthesis

Effective removal of methylene blue from aqueous solution using a new magnetic iron oxide nanosorbent prepared by combustion synthesis

Adsorption of Rhodamine B dye by biomimetic mesoporous SiO2 nanosheets

Novel biosynthesized silver nanoparticles from cobweb as adsorbent for Rhodamine B: equilibrium isotherm, kinetic and thermodynamic studies

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