Simultaneous adsorption of methylene blue and heavy metals from water using Zr-MOF having free carboxylic group

2021 ◽  
pp. 106216
Author(s):  
Madhu N Nimbalkar ◽  
Badekai Ramachandra Bhat
Keyword(s):  
Heavy Metals ◽  
Methylene Blue ◽  
Carboxylic Group ◽  
Simultaneous Adsorption

scholarly journals Application of modified green algae Nannochloropsis sp. as adsorbent in the simultaneous adsorption of Methylene Blue and Cu(II) cations in solution

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Buhani ◽  
Tri Agus Wijayanti ◽  
Suharso ◽  
Sumadi ◽  
Muslim Ansori
Keyword(s):  
Heavy Metals ◽  
Methylene Blue ◽  
Green Algae ◽  
Contact Time ◽  
Organic Dyes ◽  
Silica Matrix ◽  
Particle Coating ◽  
Adsorption Data ◽  
Magnetite Particles ◽  
Simultaneous Sorption

AbstractBiomass of algae is a very potent adsorbent for absorbing aqueous waste containing heavy metals and organic dyes. This study purposes to confirm the ability of adsorbents from green algae Nannochloropsis sp. modified with silica (ASN) and followed by coating magnetite particles (ASN-MPs) to absorb simultaneously the mixture of Methylene Blue (ME) and Cu(II) cations in aqueous solution. Simultaneous sorption of ME and Cu(II) cations to ASN and ASN-MPs was carried out by the batch method with the interaction pH condition 7, contact time 90 min, and initial concentrations of ME and Cu(II) cations (0.1–1.0 mM). Based on adsorption data, Cu(II) cations have a greater adsorption rate and capacity (qm) compared to ME at the same contact time and initial concentration. The adsorption capacity (qm) values of the bi-component ME and Cu(II) cation mixture in ASN and ASN-MPs were 1.39 × 10− 1 and 5.32 × 10− 1 mmol g− 1, respectively, with the binary Langmuir adsorption isotherm constant for Cu(II) cations greater than ME. Modified adsorbent from algae Nannochloropsis sp. with silica matrix and magnetite particle coating is an adsorbent that has a high effectiveness in the collective sorption of ME and Cu(II) cations. Therefore, these adsorbents can be used for the adsorption of cation mixtures of heavy metals and organic dyes that are cationic in solution.

scholarly journals B-Cyclodextrin Polyurethanes Copolymerised with Beetroot Fibers (Bio-Polymer), for the Removal of Organic and Inorganic Contaminants from Water

2013 ◽  
Vol 2 (1) ◽  
pp. 150 ◽  
Author(s):  
Jamil Rima ◽  
Karine Assaker
Keyword(s):  
Heavy Metals ◽  
Methylene Blue ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Water Treatment ◽  
Aromatic Hydrocarbons ◽  
Rhodamine B ◽  
Industrial Wastewater ◽  
Contaminated Groundwater ◽  
Inorganic Contaminants ◽  
Polycyclic Aromatic

<p>In this study, B-Cyclodextrinn polymerized with beetroot fibers (Bio-polymer), was prepared and applied to the removal of organic and inorganic contaminants from wastewater. An investigation into the use of cross-linked cyclodextrin polyurethanes copolymerised with beetroot fibers as adsorbents for organic pollutants and heavy metals has yielded very useful results which may have an impact in future water treatment applications.</p> The Biopolymer was tested in water contaminated by dyes, polycyclic aromatic hydrocarbons (PAH) and heavy metals. The effectiveness to eliminate dyes such as methylene blue and Rhodamine B with concentrations around 100 ppm was more than 99%, while the pyrene,which was chosen as an example among PAHs, showed a potential of elimination exceeding the 97% for solutions of 10 ppm. Also, heavy metals, such as Lead, Zn, and Cu, were tested and showed an efficacy exceeding the 99.8%. The results indicated that the biopolymer developed in this study has the potential to be a promising material for the removal of mixed pollutants from industrial wastewater or from contaminated groundwater.

scholarly journals Adsorption of heavy metals and methylene blue from aqueous solution with citric acid modified peach stone

2018 ◽  
Vol 53 (11) ◽  
pp. 1678-1688 ◽  
Author(s):  
Junhua Yan ◽  
Guihong Lan ◽  
Haiyan Qiu ◽  
Chao Chen ◽  
Yongqiang Liu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Aqueous Solution ◽  
Methylene Blue ◽  
Citric Acid

Simultaneous adsorption of heavy metals and organic dyes by β-Cyclodextrin-Chitosan based cross-linked adsorbent

2021 ◽  
Vol 255 ◽  
pp. 117486
Author(s):  
Muhammad Usman ◽  
Adeel Ahmed ◽  
Bing Yu ◽  
Song Wang ◽  
Youqing Shen ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Organic Dyes ◽  
Simultaneous Adsorption

scholarly journals Ulvan dialdehyde-gelatin hydrogels for removal of heavy metals and methylene blue from aqueous solution

2020 ◽  
Vol 249 ◽  
pp. 116841
Author(s):  
Niklas Wahlström ◽  
Sophie Steinhagen ◽  
Gunilla Toth ◽  
Henrik Pavia ◽  
Ulrica Edlund
Keyword(s):  
Heavy Metals ◽  
Aqueous Solution ◽  
Methylene Blue ◽  
Removal Of Heavy Metals

Simultaneous adsorption of methyl orange and methylene blue from aqueous solution using amino functionalized Zr-based MOFs

2019 ◽  
Vol 282 ◽  
pp. 179-187 ◽  
Author(s):  
Shi-Wen Lv ◽  
Jing-Min Liu ◽  
Hui Ma ◽  
Zhi-Hao Wang ◽  
Chun-Yang Li ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Methyl Orange ◽  
Simultaneous Adsorption

New Sorption Materials on the Basis of Aluminosilicates for Wasterwater Treatment

2017 ◽  
Vol 13 ◽  
pp. 190-196
Author(s):  
Kristina K. Abdugaffarova ◽  
Maksim V. Dorogov ◽  
Anatolii A. Vikarchuk ◽  
Vlada V. Zabolotskikh ◽  
Vladislav S. Firsov
Keyword(s):  
Heavy Metals ◽  
Methylene Blue ◽  
Chemical Composition ◽  
Specific Surface ◽  
Post Treatment ◽  
Pilot Studies ◽  
Physical Methods ◽  
Structure And Morphology ◽  
Composition Structure

This article presents the results of experimental obtaining together with tests of modifications of the granulated sorption aluminosilicate-based material. The chemical composition, structure and morphology of a surface of the obtained modifications of sorbents from clay have been explored. Through a complex of modern physical methods it is established that porosity and a specific surface of clay-based sorbents increased as a result of modification. Pilot studies have shown higher efficiency of new aluminosilicate-based sorbents in comparison with absorbent carbon during sorption of such model pollutants as methylene blue, phenol and ions of heavy metals. Modifications of sorbent which can be effectively used for post treatment of wastewater are revealed.

scholarly journals Application of modified green algae Nannochloropsis sp. as adsorbent in the simultaneous adsorption of methylene blue and Cu(II) cations in solution

2021 ◽  
Author(s):  
Buhani ◽  
Tri Agus Wijayanti ◽  
Suharso ◽  
Sumadi ◽  
Muslim Ansori
Keyword(s):  
Heavy Metals ◽  
Methylene Blue ◽  
Green Algae ◽  
Contact Time ◽  
Organic Dyes ◽  
Liquid Waste ◽  
Silica Matrix ◽  
Particle Coating ◽  
Magnetite Particles ◽  
Simultaneous Sorption

Abstract Biomass of algae is a very potent adsorbent for absorbing liquid waste containing heavy metals and organic dyes. This study purposes to confirm the ability of adsorbents from green algae Nannochloropsis sp. modified with silica (ASN) and followed by coating magnetite particles (ASN-MPs) to absorb simultaneously the mixture of methylene blue (ME) and Cu(II) cations in aqueous solution. Simultaneous sorption of ME and Cu(II) cations to ASN and ASN-MPs was carried out by the Batch method with the interaction pH condition 7, contact time 90 minutes, and initial concentrations of ME and Cu(II) cations (0.1 - 1.0 mmol L-1). Based on adsorption data, Cu(II) cations have a greater adsorption rate and capacity (qm) compared to ME at the same contact time and initial concentration. The adsorption capacity (qm) values of the bi-component ME and Cu(II) cation mixture in ASN and ASN-MPs were 1.385 x 10-1 and 5,319 x 10-1 mmolequiv g-1, respectively, with the binary Langmuir adsorption isotherm constant for Cu(II) cations greater than ME. Modified adsorbent from algae Nannochloropsis sp. with silica matrix and magnetite particle coating, is an adsorbent that has a high effectiveness in the collective sorption of ME and Cu(II) cations. Therefore, these adsorbents can be used for the adsorption of cation mixtures of heavy metals and organic dyes that are cationic in solution.

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