Preparation and characterization of different zeolites from andesite rock: Product evaluation for efficient dye removal

Youssef, H.; Nasr, Rabab A.; El‐Anwar, Esmat A. Abou; Mekky, H. S.; Rahim, Said H. Abd El

doi:10.1016/j.micromeso.2021.111485

Cited by 18 publications

(7 citation statements)

References 77 publications

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“…Compared to these methods, adsorption gained paramount interest because of its easy manipulation and costeffectiveness for the direct adsorption of organic contaminants from water resources. 8,9 Several types of compounds have been reported to be used as adoptive materials, including mesoporous silicas, 10 metal-organic frameworks (MOFs), 11,12 zeolites, 13,14 activated carbonaceous materials, [15][16][17][18] and porous organic polymers (POPs). [19][20][21] Among them, activated carbon and other carbonaceous materials suffer from a small pore size, MOFs suffer from instability in acidic solutions, and zeolites and mesoporous silicas suffer from hard functionalization leading to limited application in dye removal.…”

Section: Introductionmentioning

confidence: 99%

An amine-rich porous organic polymer with flexible diarylmethane moieties for adsorptive removal of anionic dyes

Rashidinia,

Dinari

2023

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

An amine-rich porous organic polymer with flexible diarylmethane moieties for adsorptive removal of anionic dyes

Rashidinia,

Dinari

2023

New J. Chem.

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“…Hence, the porosity and specific surface area of the zeolite can be improved by removing contaminants from its pores. Meanwhile, zeolite's ability to adsorb salt ions onto its surface can be improved by enhancing its surface charge [7][8][9][10][11]. The activation process was carried out by placing zeolite granules between two stainless steel plates and then connecting the two plates to a DC voltage source.…”

Section: Introductionmentioning

confidence: 99%

Electrically activated zeolite for reducing seawater salinity

Wibowo,

Aditya,

Ulya

et al. 2023

J. Phys.: Conf. Ser.

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We have electrically activated natural zeolite (Clinoptilolite) to enhance the reduction ability of zeolite for seawater desalination. Activation was carried out using a voltage source of 8 V and 12 V for 0, 5, 10, 15, and 20 minutes. A salinometer is used to measure changes in seawater salinity after being treated with electrically activated zeolite. The salinity reduction value is expressed in percent reduction (η), which is measured every hour for 24 hours. Zeolite activated at a voltage of 8 V for 15 minutes was able to reduce seawater salinity by up to 5.7%. Zeolite activated at 12 V for 10 minutes was able to reduce salinity by up to 7.2%. Both values are higher compared to zeolite, which was thermally activated at 225 °C for 3 hours (4.8%). We have succeeded in increasing the adsorptivity of natural zeolite through a much shorter activation process with higher reduction efficiency compared to using thermal treatment, which takes up to 3 hours. Activation of zeolite using electric current can be a preferential option because it is carried out in an uncomplicated process in a brief time and does not involve the use of chemicals that have the potential to damage the environment.

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“…Simultaneously, adsorption is considered to be the simplest and cheapest operation, and has been widely used to remove pollutants. [14] With the continuous development and application of different adsorbents, a large number of nanomaterials such as graphene oxide, [15] activated carbon, [16] zeolite [17] and metal-organic framework [18] have been screened and applied extensively for MB removal. However, these adsorbents are tough to apply in practice due to their easy agglomeration, limited recovery rate, high cost, small adsorption capacity or low adsorption efficiency.…”

Section: Introductionmentioning

confidence: 99%

Efficient Adsorption of Methylene Blue in Aqueous Solution by Acid‐modified Sodium Alginate

Chen

et al. 2022

ChemistrySelect

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The acid-modified sodium alginate (AMSA) was synthesized utilizing a simple acidification method and its synthesis was confirmed by acid-base titration method, SEM, XRD, FTIR, TGA and BET. The sodium alginate after acidification, with a large number of carboxyl groups introduced, was favorable to the adsorption of methylene blue (MB) from water. The maximum adsorption capacity calculated by Langmuir model was up to 1593 mg/g, which was significantly higher than the adsorption capacity of other adsorbents reported. The adsorption rate of MB by AMSA was very fast. After the addition of adsorbent, the adsorption removal rate reached 79 % in 30 min, and the adsorption was balanced in 120 min (94 % of MB was removed). Furthermore, electrostatic interaction and hydrogen bonding, pore-filling and chemisorption were considered as the main adsorption mechanisms. AMSA is expected to be an optimal candidate for efficient and rapid removal of MB due to its simple synthesis, abundant sources, easy separation and no secondary pollution.

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Preparation and characterization of different zeolites from andesite rock: Product evaluation for efficient dye removal

Cited by 18 publications

References 77 publications

An amine-rich porous organic polymer with flexible diarylmethane moieties for adsorptive removal of anionic dyes

An amine-rich porous organic polymer with flexible diarylmethane moieties for adsorptive removal of anionic dyes

Electrically activated zeolite for reducing seawater salinity

Efficient Adsorption of Methylene Blue in Aqueous Solution by Acid‐modified Sodium Alginate

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