Regenerable magnetic carbonized Calotropis gigantea fiber for hydrophobic-driven fast removal of perfluoroalkyl pollutants

Niu, Bihui; Yang, Shuping; Li, Yuting; Zang, Kun; Sun, Changduo; Yu, Min; Zhou, Lei; Zheng, Yian

doi:10.1007/s10570-020-03192-9

Cited by 29 publications

(2 citation statements)

References 43 publications

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“… 119 Therefore, finding a solution that allows for their effective elimination from the environment is very important. Niu et al 105 investigated the adsorption performance of the Fe 3 O 4 /biochar composite for PFAS pollutants. The synthesis consisted of mechanical mixing of Calotropis gigantea fiber derived biochar with Fe 3 O 4 nanoparticles obtained from FeSO 4 ·7H 2 O, polyvinylpyrrolidone and NaOH and carbonization in 400 °C.…”

Section: Fe 3 O 4 /Biochar Mate...mentioning

confidence: 99%

“…Therefore, they obtained a material including biochar, magnetite, ferrihydrite, and desilication products that reached a high adsorption capacity of 194 mg/g. Similarly to the work of Niu et al, hydrophobic and electrostatic interactions were essential mechanisms of PFOS adsorption. Kinetic studies confirmed the occurrence of both physisorption (diffusion and hydrophobic interaction) and chemisorption (electrostatic interaction and ion exchange) of PFOS onto the adsorbent.…”

Section: Fe3o4/biochar Materialsmentioning

confidence: 99%

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Hybrid Metal Oxide/Biochar Materials for Wastewater Treatment Technology: A Review

et al. 2022

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This paper discusses the properties of metal oxide/biochar systems for use in wastewater treatment. Titanium, zinc, and iron compounds are most often combined with biochar; therefore, combinations of their oxides with biochar are the focus of this review. The first part of this paper presents the most important information about biochar, including its advantages, disadvantages, and possible modification, emphasizing the incorporation of inorganic oxides into its structure. In the next four sections, systems of biochar combined with TiO 2 , ZnO, Fe 3 O 4 , and other metal oxides are discussed in detail. In the next to last section probable degradation mechanisms are discussed. Literature studies revealed that the dispersion of a metal oxide in a carbonaceous matrix causes the creation or enhancement of surface properties and catalytic or, in some cases, magnetic activity. Addition of metallic species into biochars increases their weight, facilitating their separation by enabling the sedimentation process and thus facilitating the recovery of the materials from the water medium after the purification process. Therefore, materials based on the combination of inorganic oxide and biochar reveal a wide range of possibilities for environmental applications in aquatic media purification.

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Section: Fe 3 O 4 /Biochar Mate...mentioning

confidence: 99%

Section: Fe3o4/biochar Materialsmentioning

confidence: 99%