Adsorption and desorption studies of Congo red using low-cost adsorbent: activated de-oiled mustard

Abstract In this study, we prepared Zn-MOFs as an ordinary, low-cost, and efficiency method taking advantage of zinc(ii) acetate monohydrate and 1,3,5-benzenetricarboxylic acid in microwave-assisted ball milling. The Zn-MOFs were measured via scanning electron microscopy, infrared spectrometry, X-ray diffraction, and thermogravimetry. We explored its use as a photocatalyst for the degradation of tetracycline hydrochloride and Congo red from aqueous solutions. The results demonstrate that the kinetic model was appropriate for the removal of organic pollutants. In general, it is feasible, inexpensive, and effective to use metal organic framework (MOF) to treat waste liquid. Therefore, our findings indicate that Zn-MOFs have broad application vista in wastewater purification.

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Bioremediation of organic dyes using combination of plants ash

Foods and raw materials ◽

10.21603/2308-4057-2019-1-240-246 ◽

2019 ◽

Vol 7 (2) ◽

pp. 240-246

Author(s):

Kaur Harpreet ◽

Vandana Kamboj ◽

Vandana Kamboj

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Methyl Orange ◽

Crystal Violet ◽

Congo Red ◽

Organic Dyes ◽

Low Cost ◽

Sem Image ◽

Orange Peels

Water is the most crucial thing to mankind and so its contamination by various agencies is posing a threat to the natural balance. So, in the present work, the efficiency of various adsorbents derived from plant waste, to remove different dyes from aqueous solution was evaluated. Parameters for study were contact time, concentration and pH. Various combinations of plant ashes were used for the study. It was found that adsorbent prepared from the combination of orange peels, pomegranate and banana peels ashes, exhibited good adsorption capacity for methylene blue, congo red and crystal violet. All these dyes were completely removed from the aqueous solution while methyl orange was not removed. Congo red was removed completely within 40 min of contact with the adsorbent while methyl orange took 3 hrs to be removed to the extent of 48% only. The adsorption coefficient of congo red was found to be 2.33 while value for methylene blue and crystal violet was 1 and 1.66 respectively. The characterization of adsorbent was done by Scanning Electron Microscopy and IR spectroscopy. SEM image revealed the surface of adsorbent to be made of differential pores. From the results it became evident that the low-cost adsorbent could be used as a replacement for costly traditional methods of removing colorants from water.

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Competitive adsorption and desorption of arsenate, vanadate, and molybdate onto the low-cost adsorbent materials alum water treatment sludge and bauxite

Environmental Science and Pollution Research ◽

10.1007/s11356-018-3301-7 ◽

2018 ◽

Vol 25 (34) ◽

pp. 34053-34062 ◽

Cited By ~ 3

Author(s):

Tao Hua ◽

Richard J. Haynes ◽

Ya-Feng Zhou

Keyword(s):

Water Treatment ◽

Competitive Adsorption ◽

Low Cost ◽

Water Treatment Sludge ◽

Adsorption And Desorption ◽

Adsorbent Materials

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Low-cost biosorption of Methylene Blue and Congo Red from single and binary systems using Sargassum latifolium biorefinery waste/wastepaper xerogel: an optimization and modeling study

Journal of Applied Phycology ◽

10.1007/s10811-020-02290-2 ◽

2020 ◽

Author(s):

Mustafa A. Fawzy ◽

Mohamed Gomaa

Keyword(s):

Methylene Blue ◽

Congo Red ◽

Binary Systems ◽

Low Cost ◽

Single And Binary Systems ◽

Modeling Study

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Razor clam (Ensis directus) shell as a low-cost adsorbent for the removal of Congo red and Rhodamine B dyes from aqueous solution

10.1063/1.4983900 ◽

2017 ◽

Cited By ~ 1

Author(s):

Lila Elamari Mohamed Areibat ◽

Azlan Kamari

Keyword(s):

Aqueous Solution ◽

Rhodamine B ◽

Congo Red ◽

Low Cost ◽

Razor Clam

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Fabrication and Application of Zeolite/Acanthophora Spicifera Nanoporous Composite for Adsorption of Congo Red Dye from Wastewater

Nanomaterials ◽

10.3390/nano11092441 ◽

2021 ◽

Vol 11 (9) ◽

pp. 2441

Author(s):

Ahmed Hamd ◽

Asmaa Ragab Dryaz ◽

Mohamed Shaban ◽

Hamad AlMohamadi ◽

Khulood A. Abu Al-Ola ◽

...

Keyword(s):

Congo Red ◽

Industrial Wastewater ◽

Low Cost ◽

Industrial Effluent ◽

Dye Adsorption ◽

Field Testing ◽

Field Trials ◽

Anionic Dyes ◽

Intra Particle Diffusion ◽

Red Dye

Systematic investigations involving laboratory, analytical, and field trials were carried out to obtain the most efficient adsorbent for the removal of congo red (CR) dye from industrial effluent. Modification of the zeolite (Z) by the Acanthophora Spicifera algae (AS; marine algae) was evaluated in terms of adsorption capability of the zeolite to remove CR dye from aqueous solution. The zeolite/algae composite (ZAS) was fabricated using the wet impregnation technique. The AS, Z, and the synthesized ZAS composite were analyzed utilizing various characterization techniques. The newly synthesized ZAS composite has an adsorption capacity that is significantly higher than that of Z and AS, particularly at low CR concentrations. Batch experiments were carried out to explore the effects of different experimental factors, as well as the dye adsorption isotherms and kinetics. Owing to the presence of intermolecular interactions, the computational analysis showed that the adsorption of the CR molecule on zeolite surfaces is exothermic, energetically favorable, and spontaneous. Furthermore, growing the zeolite surface area has no discernible effect on the adsorption energies in all configurations. The ZAS composite may be used as a low-cost substitute adsorbent for the removal of anionic dyes from industrial wastewater at lower dye concentrations, according to the experimental results. Adsorption of CR dye onto Z, AS, and ZAS adsorbents was adequately explained by pseudo-second-order kinetics and the Langmuir isotherm. The sorption mechanism was also evaluated using Weber’s intra-particle diffusion module. Finally, field testing revealed that the newly synthesized adsorbent was 98.0% efficient at extracting dyes from industrial wastewater, proving the foundation of modern eco-friendly materials that aid in the reuse of industrial wastewater.

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Adsorption Performance of Modified Nkalagu Bentonite in Dye Removal: Kinetics, Equilibrium, Thermodynamics and Structural Properties of the Modified Samples

Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences ◽

10.52763/pjsir.phys.sci.58.3.2015.157.171 ◽

2015 ◽

Vol 58 (3) ◽

pp. 157-171

Author(s):

Regina Obiageli Ajemba

Keyword(s):

Congo Red ◽

Thermal Activation ◽

Low Cost ◽

Acid Activation ◽

Kinetics Analysis ◽

Ph Change ◽

Adsorption Performance ◽

Equilibrium Data ◽

Pseudo Second Order ◽

Physicochemical Methods

The adsorption performance of modified Nkalagu bentonite in removing Congo red (CR) from solution was investigated. The raw bentonite was modified by three different physicochemical methods: thermal activation (TA), acid activation (AA), and combined acid and thermal activation (ATA). The Congo red adsorption increased with increase in contact time, initial dye concentration, adsorbent dosage, temperature, and pH change. The results of the kinetics analysis of the adsorption data revealed that adsorption follows pseudo second-order kinetics. Analysis of the equilibrium data showed that Langmuir isotherm provided a better fit to the data. Evaluation of the thermodynamic parameters revealed that adsorption process is spontaneous and endothermic. The results from this study suggest that a combination of thermal and acid activation is an effective modification method to improve adsorption capacity of bentonite and makes the bentonite as low-cost adsorbent for removal of water pollutants.

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