The high content of NH2-MIL-101(Fe) in NH2-MIL-101(Fe)/Fe3O4/GO enables selective adsorption removal of five parabens

Meng, Zicheng; Yu, Bolun; Chen, Yuchuan; Deng, Yi; Li, Haipu; Yao, Jingjing; Yang, Hui Ying

doi:10.1016/j.ces.2023.119527

Cited by 11 publications

(2 citation statements)

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“…3 Parabens are used as synthetic preservatives in cosmetics, food, pharmaceuticals, and personal care products. 5 For instance, at the food level, they are used as antimicrobial preservatives in baked goods, fats and oils, condiments, sugar substitutes, coffee extracts, fruit juices, pickles, sauces, soft drinks, and dairy products. 1,6 Parabens are recognized as endocrine-disrupting chemicals (EDCs) that can mimic, antagonize, or modify natural hormone levels in the body.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Some parabens have antibacterial and antifungal activities due to their ability to alter the cell membrane and intracellular proteins and cause a change in the enzymatic activity of microbial cells . Parabens are used as synthetic preservatives in cosmetics, food, pharmaceuticals, and personal care products . For instance, at the food level, they are used as antimicrobial preservatives in baked goods, fats and oils, condiments, sugar substitutes, coffee extracts, fruit juices, pickles, sauces, soft drinks, and dairy products. , …”

Section: Introductionmentioning

confidence: 99%

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Modified Cellulose for Adsorption of Methylparaben and Butylparaben from an Aqueous Solution

Correa-Navarro,

Rivera-Giraldo,

Cardona-Castaño

2024

ACS Omega

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Emerging contaminants are chemical products that are found in low concentrations, are not regulated by environmental norms, and cause health effects. Among this group of contaminants are parabens, a family of p-hydroxybenzoic acid esters used as preservatives in cosmetics, pharmaceuticals, and food products. Recent research describes parabens as endocrine disruptors that can cause health alterations. Some of the best alternatives for pollutant removal include the adsorption process, which can use materials that are inexpensive, abundant, and susceptible to modifications. In this sense, cellulose can be an option for obtaining materials that can be used in the removal of contaminants. This research investigates the synthesis of benzoic cellulose (MCB) and magnetic cellulose (MCM) as well as its use as an adsorbent for the removal of methylparaben (MP) and butylparaben (BP) from water. Likewise, physicochemical characterization, including Fourier transform infrared (FTIR), scanning electronic microscopy (SEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD), and thermogravimetric analysis (TGA), for both cellulose materials was carried out. Moreover, pseudo-first-order, pseudo-second-order, Elovich, Weber, Morris, and Boyd models were used to investigate the adsorption kinetics. As a result, the pseudo-second-order model was favorable for both modified cellulose and the two parabens assayed. Finally, Freundlich, Langmuir, and Sips adsorption isotherm models were investigated; the Langmuir model was the best for the adsorption isotherm data. The adsorption of methylparaben and butylparaben was in the following order: MCM > MCB. The maximum adsorption capacity of MP and BP for MCM was 9.58 and 12.03 mg g −1 , respectively. For instance, the results showed that the modified cellulose adsorbed the parabens physically, which could involve electrostatic attraction, hydrogen bonding, π−π bonding, and hydrophobic interactions.

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