Box–Behnken methodology for Cr (VI) and leather dyes removal by an eco-friendly biosorbent: F. vesiculosus

Cobas, M.; Sanromán, M.A.

doi:10.1016/j.biortech.2013.12.125

Cited by 57 publications

(39 citation statements)

References 29 publications

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“…Additionally, these algae grow quickly (Easton et al 2011;Nikolaisen and Jensen 2013). Although slower growing, seaweeds of genus Fucus as biosorbents have generated a growing interest in the last decades (Freitas et al 2008;Mata et al 2008Mata et al , 2009Cobas et al 2014). Their cell walls are characterized by the presence of cellulose, acting as structural support, sulfated polysaccharides and alginic acid, a polymer of mannuronic and guluronic acids (Lesmana et al 2009).…”

Section: Responsible Editor: Céline Guéguenmentioning

confidence: 99%

Comparative study on metal biosorption by two macroalgae in saline waters: single and ternary systems

Figueira

Henriques

Teixeira

et al. 2016

Environ Sci Pollut Res

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The biosorption capability of two marine macroalgae (green Ulva lactuca and brown Fucus vesiculosus) was evaluated in the removal of toxic metals (Hg, Cd and Pb) from saline waters, under realistic conditions. Results showed that, independently of the contamination scenario tested, both macroalgae have a remarkable capacity to biosorb Hg and Pb. In single-contaminant systems, by using only c.a. 500 mg of non-pre-treated algae biomass (size <200 μm) per litter, it was possible to achieve removal efficiencies between 96 and 99 % for Hg and up to 86 % for Pb. Despite the higher removal of Hg, equilibrium was reached more quickly for Pb (after 8 h). In multi-contaminant systems, macroalgae exhibited a similar selectivity toward the target metals: Hg > Pb> > Cd, although Pb removal by U. lactuca was more inhibited than that achieved by F. vesiculosus. Under the experimental conditions used, none of the macroalgae was effective to remove Cd (maximum removal of 20 %). In all cases, the kinetics of biosorption was mathematically described with success. Globally, it became clear that the studied macroalgae may be part of simple, efficient, and cost-effective water treatment technologies. Nevertheless, Fucus vesiculosus has greater potential, since it always presented higher initial sorption rates and higher removal efficiencies.

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Section: Responsible Editor: Céline Guéguenmentioning

confidence: 99%

Comparative study on metal biosorption by two macroalgae in saline waters: single and ternary systems

Figueira

Henriques

Teixeira

et al. 2016

Environ Sci Pollut Res

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“…This design is useful in avoiding experiments that would be performed under extreme conditions, for which unsatisfactory results might occur. 25 The number of experiments required (N) is given by:…”

Section: Photocatalysis Experimentsmentioning

confidence: 99%

Graphene Oxide/Zinc Oxide (GO/ZnO) Nanocomposite as a Superior Photocatalyst for Degradation of Methylene Blue (MB)-Process Modeling by Response Surface Methodology (RSM)

Hosseini¹,

Babaei²

2016

Journal of the Brazilian Chemical Society

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The photocatalytic performance of graphene oxide/zinc oxide (GO/ZnO) nanocomposite was investigated for degradation of methylene blue (MB) from wastewater and was compared with that of zinc oxide (ZnO), graphene oxide (GO) and carbon nanotube/zinc oxide (CNT/ZnO). The properties of the GO/ZnO nanocomposite were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The SEM and TEM results revealed the nanostructure of the composite. The photocatalytic process was modeled by response surface methodology (RSM), considering four independent factors. The significance of the model was approved by analysis of variance (ANOVA) (determination coefficient R 2 = 0.95, R 2 adj = 0.91). The optimum conditions of the process were found to be at photocatalyst dosage, initial pH, H 2 O 2 concentration and irradiation time of 2.1 g L -1 , 4.5, 3.5 × 10 -4 mol L -1 and 140 min, respectively. The removal of MB over GO/ZnO was 99% under the optimum conditions and was superior than that over GO and CNT/ZnO. According to Pareto analysis of the modeling, the irradiation time and photocatalyst dosage were the most effective factors on the decolorization efficiency of methylene blue, respectively.

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“…Such adsorbents can be used for the production of activated carbon with high adsorption capacity, considerable mechanical strength, considerable renewability as a resource, considerable reusability and eco-friendly nature [12][13][14]. Various biomasses like sugar beet pulp [15], rice husk [16], corn stalk [17], Ficus glomerata [18], persimmon [19], Daucus carota [20], Cupressus lusitanica bark [21], Citrus limetta peel [22], neen saw dust [23], peanut husk [24], longan seed [25], Fucus vesiculosus [26], etc. have been used for the removal of hexavalent chromium.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of unmodified and chemically modified Swietenia mahagoni shells for the removal of hexavalent chromium from simulated wastewater

Rangabhashiyam

Selvaraju

2015

Journal of Molecular Liquids

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Box–Behnken methodology for Cr (VI) and leather dyes removal by an eco-friendly biosorbent: F. vesiculosus

Cited by 57 publications

References 29 publications

Comparative study on metal biosorption by two macroalgae in saline waters: single and ternary systems

Comparative study on metal biosorption by two macroalgae in saline waters: single and ternary systems

Graphene Oxide/Zinc Oxide (GO/ZnO) Nanocomposite as a Superior Photocatalyst for Degradation of Methylene Blue (MB)-Process Modeling by Response Surface Methodology (RSM)

Efficacy of unmodified and chemically modified Swietenia mahagoni shells for the removal of hexavalent chromium from simulated wastewater

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