A binary oxide-biochar composite for adsorption of arsenic from aqueous solutions: Combined microwave pyrolysis and electrochemical modification

Benis, Khaled Zoroufchi; Sokhansanj, Amin; Norberto, Julia; McPhedran, Kerry N.; Soltan, Jafar

doi:10.1016/j.cej.2022.137024

Cited by 29 publications

(2 citation statements)

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“…One general wastewater remediation method is to purify industrial wastewater through the adsorption method, 14,15 which possesses simple operation, 16 low investment cost, 17 and recycling ability. 18 Among them, polydopamine (PDA) is one of the most widely used adsorbents with effective adsorption of dyes, endocrine disruptors, and antibiotics.…”

Section: Introductionmentioning

confidence: 99%

Porous polydopamine nanospheres with yolk shell-like structure to effectively remove methylene blue, bisphenol A, and tetracycline from wastewaters

et al. 2023

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Section: Introductionmentioning

confidence: 99%

Porous polydopamine nanospheres with yolk shell-like structure to effectively remove methylene blue, bisphenol A, and tetracycline from wastewaters

et al. 2023

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“…Some studies modified biochar with the chemical coprecipitation technique [13], in which the obtained magnetic biochar showed a strong adsorption capacity for anionic pollutants. Furthermore, to shorten the biochar modification time, some studies [14,15] modified biochar with an electrolytic electrolyte solution using electrodes, which changed the physical-chemical properties of biochar and can greatly improve phosphate adsorption [14,15]. Modification using the electrochemical and one-step methods can change the adsorption capacity of biochar to varying degrees.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Magnetic Biochar Modified Using the One-Step and Electrochemical Methods and Its Impact on Phosphate Adsorption

Mei,

Wang,

Tao

2023

Materials

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The properties and phosphate adsorption capability of the one-step method and electrochemical method in modifying peanut shell biochar have been determined. The one-step method deposits MgO and Fe3O4 onto biochar through chemical impregnation and regularly affects the functional groups and magnetic separation of biochar, thereby enhancing its ability to adsorb phosphate. In contrast, the electrochemical method is not favorable for modifying functional groups of biochar but can promote phosphate adsorption because of the formation of MgFe2O4 and Fe3O4 using electrolysis. The adsorption isotherm and kinetics data suggest that adsorption is monolayer onto a homogeneous surface and phosphate adsorption could be controlled by chemical processes. Biochar with the addition of both Fe2+ and Mg2+ shows better phosphate adsorption capability than those with barely any Fe2+ additions. It was concluded that the one-step method is a better modification method than the electrochemical method for enhancing the phosphate adsorption capability of biochars.

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Adsorption of Sulfamethoxazole on to Microwave-Activated Biochar

Benis,

Minaei,

McPhedran

et al. 2024

Lecture Notes in Civil Engineering

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A binary oxide-biochar composite for adsorption of arsenic from aqueous solutions: Combined microwave pyrolysis and electrochemical modification

Cited by 29 publications

References 71 publications

Porous polydopamine nanospheres with yolk shell-like structure to effectively remove methylene blue, bisphenol A, and tetracycline from wastewaters

Porous polydopamine nanospheres with yolk shell-like structure to effectively remove methylene blue, bisphenol A, and tetracycline from wastewaters

Characterization of Magnetic Biochar Modified Using the One-Step and Electrochemical Methods and Its Impact on Phosphate Adsorption

Adsorption of Sulfamethoxazole on to Microwave-Activated Biochar

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