Probing the role of hydrolytically stable, 3-aminopropyl triethoxysilane crosslinked Chitosan/Graphene oxide membrane towards Congo red dye adsorption

The present study analyzed the efficiency of a naturally derived fenugreek powder for removal of Congo red dye from the aqueous solution. The flocculation Studies on Congo Red (CR) a hazardous, textile dye onto Fenugreek Powder and its adsorption was analyzed. Fenugreek Powder is Eco-friendly, biodegradable and locally available in the market. The dye adsorption process was performed in different batches at varying pH, dye concentration, adsorbent concentration and contact time to get the best results. The result showed that the maximum removal of dye was 42.4% with 10mg/l of Fenugreek powder at pH 4.

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Mechanistic aspects for the removal of Congo red dye from aqueous media through adsorption over N-doped graphene oxide nanoadsorbents prepared from graphite flakes and powders

Physics and Chemistry of the Earth Parts A/B/C ◽

10.1016/j.pce.2018.08.001 ◽

2018 ◽

Vol 107 ◽

pp. 58-70 ◽

Cited By ~ 11

Author(s):

Kholiswa Yokwana ◽

Alex T. Kuvarega ◽

Sabelo D. Mhlanga ◽

Edward N. Nxumalo

Keyword(s):

Graphene Oxide ◽

Congo Red ◽

Aqueous Media ◽

Congo Red Dye ◽

Doped Graphene ◽

Red Dye

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Experimentally and theoretically approaches for Congo red dye adsorption on novel kaolinite-alga nano-composite

International Journal of Environmental & Analytical Chemistry ◽

10.1080/03067319.2021.1969378 ◽

2021 ◽

pp. 1-23

Author(s):

Doaa Rady ◽

Mohamed Shaban ◽

Khaled N. M. Elsayed ◽

Ahmed Hamd ◽

N. K. Soliman ◽

...

Keyword(s):

Congo Red ◽

Dye Adsorption ◽

Nano Composite ◽

Congo Red Dye ◽

Red Dye

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Adsorption of Congo red dye onto antimicrobial terephthaloyl thiourea cross-linked chitosan hydrogels

Water Science & Technology ◽

10.2166/wst.2017.442 ◽

2017 ◽

Vol 76 (10) ◽

pp. 2719-2732 ◽

Cited By ~ 14

Author(s):

Nouf F. El-Harby ◽

Shaimaa M. A. Ibrahim ◽

Nadia A. Mohamed

Keyword(s):

Adsorption Capacity ◽

Congo Red ◽

Dye Adsorption ◽

Solution Temperature ◽

Structural Variations ◽

Maximum Sorption Capacity ◽

Congo Red Dye ◽

Chitosan Hydrogels ◽

Red Dye ◽

Kinetics And Isotherms

Abstract Adsorption capacity of three antimicrobial terephthaloyl thiourea cross-linked chitosan hydrogels for Congo red dye removal from its aqueous solution has been investigated for the first time in this work. These hydrogels were prepared by reacting chitosan with various amounts of terephthaloyl diisothiocyanate cross-linker. The effect of the hydrogel structural variations and several dye adsorption processing parameters to achieve the best adsorption capacity were investigated. The hydrogels' structural variations were obtained by varying their terephthaloyl thiourea moieties content. The processing variables included initial concentration of the dye solution, temperature and time of exposure to the dye. The adsorption kinetics and isotherms showed that the sorption processes were better fitted by the pseudo-second-order equation and the Langmuir equation, respectively. On the basis of the Langmuir analysis Congo red dye gave the maximum sorption capacity of 44.248 mg/g. The results obtained confirmed that the sorption phenomena are most likely to be controlled by chemisorption process. The adsorption reaction was endothermic and spontaneous according to the calculated results of adsorption thermodynamics.

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Removal of Congo red dye from aqueous solutions using a halloysite-magnetite-based composite

Water Science & Technology ◽

10.2166/wst.2016.060 ◽

2016 ◽

Vol 73 (9) ◽

pp. 2132-2142 ◽

Cited By ~ 13

Author(s):

F. Ferrarini ◽

L. R. Bonetto ◽

Janaina S. Crespo ◽

M. Giovanela

Keyword(s):

Aqueous Solutions ◽

Adsorption Kinetics ◽

Congo Red ◽

Contact Time ◽

High Efficiency ◽

Dye Adsorption ◽

Order Model ◽

Congo Red Dye ◽

Pseudo Second Order ◽

Red Dye

Adsorption has been considered as one of the most effective methods to remove dyes from aqueous solutions due to its ease of operation, high efficiency and wide adaptability. In view of all these aspects, this study aimed to evaluate the adsorption capacity of a halloysite-magnetite-based composite in the removal of Congo red dye from aqueous solutions. The effects of stirring rate, pH, initial dye concentration and contact time were investigated. The results revealed that the adsorption kinetics followed the pseudo-second-order model, and equilibrium was well represented by the Brunauer–Emmett–Teller isotherm. The thermodynamic data showed that dye adsorption onto the composite was spontaneous and endothermic and occurred by physisorption. Finally, the composite could also be regenerated at least four times by calcination and was shown to be a promising adsorbent for the removal of this dye.

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Adsorption and Statistical Analysis of Textile Effluent Contaminated with Congo red On Orange Peel

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.j9344.0881019 ◽

2019 ◽

Vol 8 (10) ◽

pp. 2607-2615

Keyword(s):

Response Surface Methodology ◽

Response Surface ◽

Congo Red ◽

Dye Adsorption ◽

Orange Peel ◽

Box Behnken Design ◽

Congo Red Dye ◽

Contour Plots ◽

Synthetic Media ◽

Red Dye

In the present study we made an effort to deploy orange peel as adsorbent to remove Congo red dye from a synthetic media. Adsorption of Congo red dye was carried out using Response Surface Methodology (RSM).The influence of various factors such as adsorbent dosage, initial concentration of adsorbate and agitation time on adsorption was analyzed. A total no of 13 runs of experiments were conducted by using the detailed conditions which is designed by RSM based Box-Behnken Design. Contour plots and surface plots were analyzed to know the effect of factors. Activated orange peel could adsorb a maximum of 96.776% of congo red dye. The values observed in the experiment well agreed with the RSM predicted values .Activated orange peel seems to be better adsorbent and RSM could be a great tool undertake adsorption.: Congo Red Dye, Adsorption, Response Surface Methodology, Orange Peel, Box-Behnken Design.In the present study we made an effort to deploy orange peel as adsorbent to remove Congo red dye from a synthetic media. Adsorption of Congo red dye was carried out using Response Surface Methodology (RSM).The influence of various factors such as adsorbent dosage, initial concentration of adsorbate and agitation time on adsorption was analyzed. A total no of 13 runs of experiments were conducted by using the detailed conditions which is designed by RSM based Box-Behnken Design. Contour plots and surface plots were analyzed to know the effect of factors. Activated orange peel could adsorb a maximum of 96.776% of congo red dye. The values observed in the experiment well agreed with the RSM predicted values .Activated orange peel seems to be better adsorbent and RSM could be a great tool undertake adsorption.: Congo Red Dye, Adsorption, Response Surface Methodology, Orange Peel, Box-Behnken Design.

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