Methylene blue adsorption on magnetic alginate/rice husk bio-composite

Alver, Erol; Metin, Ayşegül Ülkü; Brouers, F.

doi:10.1016/j.ijbiomac.2020.02.330

Cited by 259 publications

(75 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The method of dye sorption allows one to more accurately assess the surface area of solids accessible to the reactants compared with low-temperature desorption of gas (nitrogen or steam), as a dye molecule is larger than a gas molecule. The application of this method is limited by solubility in water or water regain by the biomass, whereas water is used as a solvent in the existing dye sorption procedures [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Sorption of Methylene Blue for Studying the Specific Surface Properties of Biomass Carbohydrates

et al. 2020

View full text Add to dashboard Cite

The surface area is an important parameter in setting any biorefining technology. The aim of this study was to investigate the applicability of sorption of methylene blue to characterize the surface of the main biomass carbohydrates: α-cellulose, sigmacell cellulose, natural gum, β-glucan, and starch. The morphology of particles of the model objects was studied by scanning electron microscopy. Nitrogen adsorption isotherms demonstrate that the selected carbohydrates are macroporous adsorbents. The monolayer capacities, the energy constants of the Brunauer–Emmett–Teller (BET) equation, and specific surface areas were calculated using the BET theory, the comparative method proposed by Gregg and Sing, and the Harkins–Jura method. The method of methylene blue sorption onto biomass carbohydrates was adapted and mastered. It was demonstrated that sorption of methylene blue proceeds successfully in ethanol, thus facilitating surface characterization for carbohydrates that are either soluble in water or regain water. It was found that the methylene blue sorption values correlate with specific surface area determined by nitrogen adsorption/desorption and calculated from the granulometric data. As a result of electrostatic attraction, the presence of ion-exchanged groups on the analyte surface has a stronger effect on binding of methylene blue than the surface area does. Sorption of methylene blue can be used in addition to gas adsorption/desorption to assess the accessibility of carbohydrate surface for binding large molecules.

show abstract

Section: Introductionmentioning

confidence: 99%

Sorption of Methylene Blue for Studying the Specific Surface Properties of Biomass Carbohydrates

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Some of the groups of polymers involved in the environmental area and some of its examples are shown in Figure 1. Polyesters [43][44][45] , polyolefins [46,47] , polyamides [48,49] , and polysaccharides [28,[50][51][52] may be obtained naturally or through industrial chemical processes and are used in the removal or reduction of pollutants, among other applications in the environmental area, considering the advantages and disadvantages of each one for these applications.…”

Section: Biopolymers In the Environmental Areamentioning

confidence: 99%

Advances and perspectives in the use of polymers in the environmental area: a specific case of PBS in bioremediation

et al. 2020

View full text Add to dashboard Cite

Biodegradable polymers (e.g. poly(butylene succinate)-PBS) have been used in several sectors such as the environmental area, especially in bioremediation, in biological processes for conversion of pollutants into inorganic compounds. In this study, the foresight methodology for the use of biodegradable polymers, including PBS, reveals a publication rate of approximately 8.74 articles and 30.63 patents per year, between 2005 and 2019. However, the application of PBS, specifically, is still restricted to the environmental area, with only 3.0% of the 1484 works from this period. The results showed a more significant number of papers on the PBS application for synthesis, characterization, and application in the areas of Chemistry, Physics, and Pharmacy. In the area of bioremediation, only three studies related to PBS were found, revealing the lack of research and development to increase the contribution in the area of environmental recovery.

show abstract

“…[6] Among these methods, the adsorption process has been preferred that this can be attributed to its costeffective and high performance for treating effluents. [7,8] Much research for removing MB dye using various adsorbent such as manganese-cobaltite nanospinel, [9] TiO 2 NPs@ZIF-8 composite, [10] magnetic chitosan, [11] graphene oxide (MCGO), [12,13] magnetic zeolites, [14] magnetic alginate/rice husk, [15] metal-organic framework nanocomposite, [16] TiO 2 NPs@ZIF-8 composite [17] and activated carbon [18] have been developed. Activated carbon as one of the effective adsorbent has been developed to deal with the dye and pesticides in wastewater; this may be because a) the activated carbon is known as a low-cost, eco-friendly, bio-based and renewable sorbent that can prepare from agricultural waste, so it is benifical in removing organic compounds from wastewater and b) activated carbons have extensively advanced physical and chemical properties, becuse there are in them structure large surface area, large pore volumes and existence of numerous functional groups such as carboxyl, hydroxyl, etc., that finally lead to enhancement in removal efficiency.…”

Section: Introductionmentioning

confidence: 99%

Bioadsorbent from Magnetic Activated Carbon Hybrid for Removal of Dye and Pesticide

Nejadshafiee

Islami

2020

ChemistrySelect

View full text Add to dashboard Cite

A novel bioadsorbent has been developed based on the framework of activated carbon, Fe3O4 nanoparticles, and ascorbic acid (AA@Fe3O4 NPs@AC). The objective of this study was efficient adsorption of organic compounds such as dye and pesticide from aqueous solutions by AA@Fe3O4 NPs@AC adsorbent. The structure of AA@Fe3O4 NPs@AC was characterized by TEM, TGA, FTIR, VSM, XRD, BET and Zeta potential. Moreover, the adsorption process of dye and pesticide compounds on AA@Fe3O4 NPs@AC was systematically considered and was found which the pseudo‐second‐order kinetic equation and Langmuir isotherm model conformed. The maximum adsorption capacities of AA@Fe3O4 NPs@AC for methylene blue (MB) dye and acetamiprid pesticide compounds were 370.37 and 357.14 mg g−1, respectively that revealed excellent adsorption performance of AA@Fe3O4 NPs@AC adsorbent. On the other hand, with easy and high recovery of AA@Fe3O4 NPs@AC through magnetic separation has provided a simple and green method to enhance the efficiency of bio‐adsorbent for remove of dyes and pesticides from contaminated water.

show abstract

Methylene blue adsorption on magnetic alginate/rice husk bio-composite

Cited by 259 publications

References 46 publications

Sorption of Methylene Blue for Studying the Specific Surface Properties of Biomass Carbohydrates

Sorption of Methylene Blue for Studying the Specific Surface Properties of Biomass Carbohydrates

Advances and perspectives in the use of polymers in the environmental area: a specific case of PBS in bioremediation

Bioadsorbent from Magnetic Activated Carbon Hybrid for Removal of Dye and Pesticide

Contact Info

Product

Resources

About