The influence of magnetic particle incorporation on bisphenol A removal by β-cyclodextrin-derived sorbent

Łukasik, Natalia; Wikarska, Sandra; Świątek, Hanna; Łapiński, Marcin; Klimczuk, Tomasz; Hemine, Koleta

doi:10.1016/j.chemosphere.2023.139538

Cited by 6 publications

(3 citation statements)

References 78 publications

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“…6(a), the degradation rate of BPA reached more than 90% at pH 3.1, 5.6, 6.7, and 9.3, while decreased to 23.26% at increasing pH 11.1. It was mainly due to the fact that the free radicals (SO4 − • ) generated in the PS system have the strongest oxidizing properties under acidic conditions, 46,47 but compared with the conventional Fenton process, the Fe2Mn1@N-BC3-800/PS system has a wide working pH range (3)(4)(5)(6)(7)(8)(9).…”

Section: Effects Of Initial Ph Co-existing Ions and Humic Acidsmentioning

confidence: 99%

“…3,4 Therefore, there is an urgent need to investigate an effective and reliable method for BPA removal. In previous studies, physical adsorption, 5 biodegradation, 6 advanced oxidation processes (AOPs) and other technologies have been widely adopted in the treatment of BPA, 7 but physical adsorption only transfers the pollutant from the aqueous environment to the catalyst and does not achieve complete removal of the pollutant or require further treatment of the adsorbent, with adsorption saturation also being one of the shortcomings of the process. BPA is usually very stable in the environment, which also limits the further application of biodegradation technologies.…”

Section: Introductionmentioning

confidence: 99%

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Activation Persulfate for Efficient Bisphenol A Degradation via Nitrogen doped Fe/Mn Bimetallic Biochar

Cao,

Yang,

Zhang

et al. 2024

Preprint

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To achieve the purpose of treating waste by waste, in this study, a nitrogen-doped Fe/Mn bimetallic biochar material (FeMn@N-BC) was prepared from chicken manure for persulfate (PS) activation to degrade Bisphenol A (BPA). The FeMn@N-BC was characterized by scanning electron microscopy (SEM), X-ray diffract meter (XRD), fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectrometer (XPS) and found that N doping can form larger specific surface area, higher defective degree and more active sites on the catalyst surface so that reduce the loss of metal. Catalytic degradation experiments showed that Fe/Mn bimetal doping not only accelerated the electron cycling rate on the catalyst surface, greatly improved the catalytic effect, but also makes the biochar magnetic and easy to separate, thus reducing environmental pollution. the performance of BPA degradation was compared under different kinds of biochar materials, and it was concluded that the highest degradation efficiency of BPA was achieved when the mass ratios of urea and chicken manure, Fe/Mn were 3:1 and 2:1, respectively, and the pyrolysis temperature was 800°C, which can almost degrade all the BPA in 60 min. In addition, the effects of different PS concentration, catalyst dosage, initial pH and co-existing anions on the degradation of BPA in FeMn@N-BC/PS system were also investigated. Finally, the degradation mechanism of BPA in FeMn@N-BC/PS system was verified by radical quenching and electron paramagnetic resonance (EPR) experiments. The results showed that the degradation mechanisms of BPA in FeMn@N-BC/PS system were both radical and non-radical pathways, including SO4−•, •OH, 1O2, O2−• and electron transfer. After 4 cycles of FeMn@N-BC, the efficiency of BPA removal can still reach about 75%, showing good reuse potential. FeMn@N-BC/PS system with high catalytic efficiency and low consumables is promising for reuse of waste resources and the remediation of wastewater.

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Section: Effects Of Initial Ph Co-existing Ions and Humic Acidsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Activation Persulfate for Efficient Bisphenol A Degradation via Nitrogen doped Fe/Mn Bimetallic Biochar

Cao,

Yang,

Zhang

et al. 2024

Preprint

View full text Add to dashboard Cite

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“…All of the techniques suffer from various disadvantages . Of the many techniques proposed in the literature, adsorption is gaining importance as it traps the toxic molecules onto the surface of the adsorbent. − Additionally, the adsorption method of wastewater treatment is becoming more and more popular due to its ease of use, simplicity, viability from an economic standpoint, and high efficiency . But creating adsorbent materials for the adsorption process that are effective, efficient, nontoxic, affordable, simple to use, and regenerate is a difficult task.…”

Section: Introductionmentioning

confidence: 99%

Studies on the Removal of Malachite Green from Its Aqueous Solution Using Water-Insoluble β-Cyclodextrin Polymers

Jayanayak,

Ganalu,

Shashikanth

et al. 2024

ACS Omega

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The rising global pollution of natural waters by dyes has brought to light the need for adaptable and efficient removal techniques. To create water-insoluble β-cyclodextrin (β-CD) polymers like CA/-CD, TA/-CD, and MA/-CD, several organic acids including citric acid (CA), tartaric acid (TA), and malic acid (MA) were cross-linked with β-cyclodextrin in this study. The obtained polymers were characterized by different advanced analytical techniques such as FTIR, SEM, and UV−vis spectrophotometry. Malachite green dye was removed from aqueous solutions using the synthesized polymers by adsorption. The adsorption investigation was conducted under several conditions, including pH, adsorbent mass, dye concentration, temperature, contact time, adsorption isotherm, and kinetics. The adsorbent CA/β-CD shows the highest adsorption of MG dye in all of the conditions because it contains a high number of carboxyl groups. The negatively charged carboxyl ions of CA/β-CD attract the positively charged MG dye electrostatically and remove MG from aqueous media with an efficiency of 91%. As a result, the findings indicated that waterinsoluble polymers based on β-cyclodextrin are well-suited as inexpensive adsorbents to remove colors from aqueous media.

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Simultaneous removal of organic micropollutants and metals from water by a multifunctional β-cyclodextrin polymer-supported-polyaniline composite

Wang,

An,

Jarvis

et al. 2024

Chemical Engineering Journal

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The influence of magnetic particle incorporation on bisphenol A removal by β-cyclodextrin-derived sorbent

Cited by 6 publications

References 78 publications

Activation Persulfate for Efficient Bisphenol A Degradation via Nitrogen doped Fe/Mn Bimetallic Biochar

Activation Persulfate for Efficient Bisphenol A Degradation via Nitrogen doped Fe/Mn Bimetallic Biochar

Studies on the Removal of Malachite Green from Its Aqueous Solution Using Water-Insoluble β-Cyclodextrin Polymers

Simultaneous removal of organic micropollutants and metals from water by a multifunctional β-cyclodextrin polymer-supported-polyaniline composite

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