Removal of bisphenol A by adsorption on organically modified clays from Burkina Faso

Garikoé, Issaka; Sorgho, Brahima; Yaméogo, Adama; Guel, Boubié; Andala, Dickson

doi:10.1080/10889868.2020.1842321

Cited by 11 publications

(24 citation statements)

References 73 publications

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“…Different developed methodologies are still improving the sorption efficiency of organically modified clays in terms of achieving high sorption efficiency to remove organic pollutants such as BPA from water. Removal of BPA from aqueous solutions by sorption using organoclays synthesized from natural smectite containing clays with different types of organic cationic surfactants was demonstrated in several investigations [ 8 , 9 , 10 , 11 , 12 , 13 ]. A review of scientific studies on the BPA removal from water by sorption methodology was published recently [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…A review of scientific studies on the BPA removal from water by sorption methodology was published recently [ 14 ]. All studies reported a high ability of organoclays to sorb BPA compared to the untreated clays [ 8 , 9 , 10 , 11 , 12 , 13 , 14 ]. The organoclays are described as efficient sorbents expressed in terms of sorption capacity [ 8 , 11 , 13 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

“…All studies reported a high ability of organoclays to sorb BPA compared to the untreated clays [ 8 , 9 , 10 , 11 , 12 , 13 , 14 ]. The organoclays are described as efficient sorbents expressed in terms of sorption capacity [ 8 , 11 , 13 , 15 , 16 ]. In our recent paper, we have shown that organoclays prepared by using two natural smectites clays (denoted AH and DI) and four cationic surfactants were effective sorbents for BPA removal from water [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…From the literature, various parameters, such as the effects of sorbent dose, agitation time and kinetics, initial concentration and isotherm, pH, surfactant loading levels, temperature, and thermodynamics, were considered in the study of BPA sorption processes [ 8 , 11 , 16 ]. It has been shown that organoclays are efficient sorbents expressed in terms of sorption capacity, fitted isotherms, kinetic models, and thermodynamic aspects [ 8 , 11 , 13 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

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Sorption of Bisphenol A as Model for Sorption Ability of Organoclays

2022

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The arrangement of bisphenol A molecules into organoclays and their interactions with the intercalated surfactant were studied. The organoclays were prepared via solid-state intercalation of four cationic surfactants, such as dodecyltrimethyl-, tetradecyltrimethyl-, hexadecyltrimethyl-, and didodecyldimethyl-ammonium, as bromide salts, at different loading levels into the interlayers of two natural clays. The natural clays, the prepared organoclays, and the spent organoclays were characterized by X-ray powder diffraction, infrared spectroscopy, and scanning electron microscopy. X-ray powder diffraction measurements showed successive interlayer expansions of the d001 basal spacing due to the intercalation of the cationic surfactants and the bisphenol A sorption. The increased d001 basal spacing of the organoclays after bisphenol A sorption indicates that the molecules are integrated between the alkyl chains of the surfactant in the organoclays interlayers. Infrared spectroscopy was employed to probe the intercalation of the cationic surfactants and the sorbed bisphenol A. New characteristic bands attributed to the bisphenol A phenol rings appear in the range 1518–1613 cm−1 on the infrared spectra of the spent organoclays, proving the presence of bisphenol A in the hydrophobic interlayers. Scanning electron microscopy of the organoclays before and after BPA sorption shows that their morphology becomes fluffy and that the presence of the organic molecules expands the clay structure.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sorption of Bisphenol A as Model for Sorption Ability of Organoclays

2022

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“…In particular, there is a need for finding effective, inexpensive, and efficient materials for the adsorption processes. The removal of BPA from aqueous solutions by adsorption was demonstrated in several investigations, including hydrophobic zeolite [20,21], cetylpyridinium bromide (CPB) and N-cetyl-N, N, N, trimethylammonium bromide (CTAB) modified natural zeolites [21][22][23], various surfactants-modified clays [24][25][26], combined use of biopolymer chitosan and oxidoreductase polyphenol oxidase [27], chitosan [28], waste biomass [29][30][31] composites and polymeric materials [32,33], nano-adsorbents materials such as 2-vinylpyridine functionalized magnetic nanoparticles [34], and graphene oxide [35]. Among the nano-adsorbents used for organic and inorganic pollutants removal, gamma-alumina nanoparticles have gained extensive attention as reliable, sustainable, and eco-friendly materials [36][37][38][39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Synthesis of Alumina Nanoparticles and Their Usage for Bisphenol-A Removal from Aqueous Solutions

et al. 2021

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Gamma-alumina nanoparticles (γANPs) were obtained from a low-cost process by using natural bauxites. The γANPs materials were characterized by X-ray powder diffraction (XRPD), Fourier-transform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller (BET) theory, scanning electron microscopy (SEM), atomic force microscopy (AFM), and were functionalized with N-cetyl-N, N, N, trimethylammonium bromide (CTAB), leading to CTAB modified γ-alumina nanoparticles (γANPs-CTAB). These novel functionalized γANPs-CTAB were characterized by XRPD, FTIR, and were used as an adsorbent for bisphenol-A (BPA) removal from water. Batch investigations were conducted under different experimental conditions (e.g., adsorbent dose, agitation time, initial concentration, and pH and surfactant loading) in order to optimize BPA adsorption and to identify the adsorption mechanisms in the system γANPs-CTAB-BPA. The effect of pH on the adsorption showed that the quantity of BPA removed increased remarkably until the pH value was 4, then remained almost constant until the pH value was up to 10, and then decreased for pH values greater than 10. For an initial BPA concentration of 20 mg/L and an adsorbent dose of 12.5 g/L at a pH value of 10, the removal efficiency achieved was 91.80 ± 0.21%. The adsorption mechanism was perfectly described by pseudo-second-order kinetics and the Langmuir isotherm. γANPs-CTAB materials were found to be effective adsorbents for BPA removal from water.

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Removal of bisphenol A from wastewater by physical, chemical and biological remediation techniques. A review

Godiya

Park

2022

Environ Chem Lett

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Removal of bisphenol A by adsorption on organically modified clays from Burkina Faso

Cited by 11 publications

References 73 publications

Sorption of Bisphenol A as Model for Sorption Ability of Organoclays

Sorption of Bisphenol A as Model for Sorption Ability of Organoclays

Low-Cost Synthesis of Alumina Nanoparticles and Their Usage for Bisphenol-A Removal from Aqueous Solutions

Removal of bisphenol A from wastewater by physical, chemical and biological remediation techniques. A review

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