Adsorption, kinetics and thermodynamics studies of methyl orange dye sequestration through chitosan composites films

Hussain, Sayed; Kamran, Muhammad Arshad; Khan, Shahid Ali; Shaheen, Kausar; Shah, Zarbad; Suo, Hongli; Khan, Qadeer; Shah, Abdul Basit; Rehman, Waseeq Ur; Al‐Ghamdi, Youssef O.; Ghani, Usman

doi:10.1016/j.ijbiomac.2020.12.054

Cited by 126 publications

(34 citation statements)

References 38 publications

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“…The Langmuir isotherm is based on the assumption that the adsorption sites are homogeneous and there is no obvious interaction between the adsorbed substances. In contrast, the Freundlich isotherm describes the adsorption process that occurs on heterogeneous surfaces with different energies [ 45 ]. The Sips isotherm is a combination of the Langmuir and Freundlich isotherms.…”

Section: Resultsmentioning

confidence: 99%

Development of Pectin-Based Aerogels with Several Excellent Properties for the Adsorption of Pb2+

Wang

Shuai

et al. 2021

Foods

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Traditional aerogels lack specific functional groups for the adsorption of Pb2+, which results in a low adsorption capacity and limits the application scope. Novel porous pectin-based aerogels (PPEAs) were prepared by incorporating polyethylenimine (PEI) using ethylene glycol diglycidyl ether (EGDE) as a cross-linker for the removal of Pb2+ from water. The cross-linking mechanism, morphology, mechanical strength, thermal stability, adsorption properties, and mechanism of the aerogels were investigated. The aerogels possessed several desirable features, such as a large maximum Pb2+ adsorption capacity (373.7 mg/g, tested at pH 5.0), ultralight (as low as 63.4 mg/cm3), high mechanical strength (stress above 0.24 MPa at 50% strain), and easy recyclability. Meanwhile, the equilibrium adsorption data was well described by the Langmuir–Freundlich (Sips) model and the kinetic adsorption process was well fitted using the pseudo-second-order model. The donor groups, such as -NH2, and oxygen-containing functional groups were responsible for the Pb2+ adsorption, which was confirmed by the FTIR and XPS analysis. The excellent characteristics mean that PPEAs are highly effective adsorbents in the remediation of lead-containing wastewater.

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Section: Resultsmentioning

confidence: 99%

Development of Pectin-Based Aerogels with Several Excellent Properties for the Adsorption of Pb2+

Wang

Shuai

et al. 2021

Foods

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“…Moreover, it is easy to get without a medical prescription and is not on the list of pharmaceutical assistance (RENAME) (BEHERA; OH; PARK, 2012). Moreover, the abundance of this drug in the environment leads to intoxication that causes health problems such as anemia, hypersensitivity, dermatology problems such as photosensitivity and ocular effects as blurry diplopia (HUSSAIN et al, 2021) Figure 4 shows the chemical structure of ibuprofen and the Disciplinarum Scientia. Série: Naturais e Tecnológicas, Santa Maria, v. 22, n. 3, p. 1-16, 2021.…”

Section: Ibuprofenmentioning

confidence: 99%

Agroindustrial waste application for drugs biosorption

Costa

Resmini

Vasconcellos

et al. 2021

DS-CNT

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Currently, one of the main focuses globally is the stability of the environment for future generations. For this to be possible, it is necessary to preserve natural resources, such as water, as it is essential for the continuity of life on the planet. However, due to the massive increase in residual water and the improper consumption of medications, which are generally not fully metabolized, being excreted inappropriately, becoming an environmental liability. In this context, several treatment techniques have been used to promote the correct disposition for this wastewater, highlighting the adsorption process due to its ease, low cost, and the possibility of using alternative materials (biosorbents). Thus, the present work aims to present a bibliographic review of a qualitative and exploratory character on the application of agro-industrial residues, as alternative materials, for the removal of medicines, through a study of adsorption equilibrium, using the Langmuir, Freundlich, Temkin and Sips isotherms and adsorption kinetics, using the Pseudo-First-Order, Pseudo-Second-Order and Elovich models. Therefore, research demonstrated positive results in the removal of organic pollutants such as the industrial use of cork and peach kernel for the removal of paracetamol, where a Q máx of 200 and 113 mg g -1 was obtained for Langmuir , n of 3.1 and 2.4 for Freundlich agreeing with the same, and having an optimal Pseudo-Second-Order kinetics of R 2 of 0.999 for both, therefore, with this article it was possible to verify the use of several biosorbent in the removal of the mentioned drugs previously.

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“…From these data, it appears that the removal efficiency of MO solution in the pH range 3-12 is more than 96%. This can occur because the interaction between MO dye and AlgN-CTAB occurs through an electrostatic interaction mechanism among the positive charges of AlgN-CTAB and MO dye [25,26]. The existence of biomass modification with CTAB has increased its ability to absorb anionic dyes.…”

Section: Impact Of Solution Acidity On Adsorptionmentioning

confidence: 99%

Dye Anionic Removal From Water by Green Synthesized Nannochloropsis Sp.- Cetyltrimethylammonium Bromide Surfactant: Kinetics, Adsorption Isotherm and Adsorbent Regeneration

Buhani

Miftahza

Suharso

et al. 2021

Preprint

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In this research, biomass modification of Nannochloropsis sp. with surfactant cetyltrimethylammonium bromide (CTAB) through a cation exchange reaction to produce adsorbent Nannochloropsis sp.-cetyltrimethylammonium bromide (AlgN-CTAB). Biomass modification of Nannochloropsis sp. by CTAB has been successfully carried out through confirmation from the analysis data produced by Fourier-transform infrared spectroscopy and scanning electron microscope & energy-dispersive X-ray spectroscopy. AlgN-CTAB adsorbent has been tested for its adsorption ability against anionic dye of methyl orange (MO) in solution by way of a sequence of experiments by the batch method. The optimum conditions for MO removal from the solution occurred at an adsorbent quantity of 0.1 g, pH of 5, and an interaction time of 60 min. MO adsorption kinetics data by AlgN and AlgN-CTAB tended to take the kinetics model of pseudo-second-order (PSO) with PSO rate constant (k2) values of 0.56 and 2.17 g mg-1min-1, serially. The MO adsorption isotherm pattern by AlgN tends to take the Freundlich adsorption isotherm whereas in AlgN-CTAB, it follows the Langmuir and Dubinin-Raduskevich adsorption isotherms (AIML and AIMDR). The results of the adsorption-desorption of MO by AlgN-CTAB with 4 repetition cycles resulted % removal of MO > 80%. The AlgN-CTAB adsorbent can be used repeatedly and is very effective in absorbing MO in solution.

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Adsorption, kinetics and thermodynamics studies of methyl orange dye sequestration through chitosan composites films

Cited by 126 publications

References 38 publications

Development of Pectin-Based Aerogels with Several Excellent Properties for the Adsorption of Pb2+

Development of Pectin-Based Aerogels with Several Excellent Properties for the Adsorption of Pb2+

Agroindustrial waste application for drugs biosorption

Dye Anionic Removal From Water by Green Synthesized Nannochloropsis Sp.- Cetyltrimethylammonium Bromide Surfactant: Kinetics, Adsorption Isotherm and Adsorbent Regeneration

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