Enhanced peroxymonosulfate activation for antibiotics degradation over FeOOH regulated by kaolinite with pleiotropic effects

Yang, Shanshan; Zhu, Rui; Li, Chunquan; Zhang, Xiangwei; Zheng, Shuilin; Sun, Zhiming

doi:10.1016/j.seppur.2023.124552

Cited by 12 publications

(1 citation statement)

References 44 publications

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“…Among various materials with As(V) adsorption capability, α-FeOOH stands out because its advantages of stable chemical properties and a large specific surface area, which can effectively remove arsenic through ion exchange, surface hydroxyl adsorption, or coprecipitation methods. , Wang et al constructed a MnO 2 –FeOOH-coloaded carbon foam, where MnO 2 oxidized the highly toxic As(III) to less toxic As(V), and α-FeOOH played the role of adsorbent for As(V). The composite displayed a maximum As(V) adsorption capacity of 78 mg/g through the formation of As–Fe and As–O–Fe bonds .…”

Section: Introductionmentioning

confidence: 99%

α-FeOOH-Modified Sn/N-Codoped TiO₂ Bifunctional Composites for As(III) Removal through Photocatalytic Oxidation and Simultaneous Adsorption

Wang,

Zhu,

Liu

et al. 2024

Langmuir

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Photocatalytic oxidation technology is one of the most efficient and green methods to convert highly toxic As(III) into lowly toxic As(V) for arsenic-polluted wastewater. However, the obtained As(V) may be reduced to As(III) again in the environment, causing secondary pollution. In order to resolve these issues, a bifunctional composite consisting of needle-like α-FeOOH-modified Sn/N-codoped TiO 2 granules (SNT-FeOOH) has been synthesized. After modifying, the band gap of SNT-FeOOH narrowed from 2.94 eV (SNT) to 2.29 eV. When the composites were applied to As(III) removal, 10 mg of SNT-FeOOH could totally photocatalytically oxidize 40 mL of As(III) solution with a concentration of 10,000 μg/L within 15 min and synchronously achieve complete adsorption of the produced As(V), which is much more efficient than pure Sn/N-codoped TiO 2 [21 min for As(III) photocatalytic oxidation and only 20.01% of total arsenic removal efficiency]. Based on the characterizations, α-FeOOH modification plays a significant role in the promoted performances of photocatalytic oxidation and adsorption of SNT-FeOOH, leading to arsenic removal. On one hand, the Fe−O−Ti interfacial chemical interactions formed between α-FeOOH and Sn/N-codoped TiO 2 can further boost the separation rate of photogenerated carriers, hence increasing the photocatalytic oxidation efficiency. On the other hand, α-FeOOH surface hydroxyl groups adsorb the generated As(V) by forming Fe−O−As bonds. The SNT-FeOOH bifunctional composites, prepared in this paper, with dual performances of photocatalytic oxidation and adsorption provide a new strategy to achieve arsenic removal from wastewater.

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Section: Introductionmentioning

confidence: 99%

α-FeOOH-Modified Sn/N-Codoped TiO₂ Bifunctional Composites for As(III) Removal through Photocatalytic Oxidation and Simultaneous Adsorption

Wang,

Zhu,

Liu

et al. 2024

Langmuir

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Cooperative effect of citric acid and pyrite on the slow-release of silicon from coal gangue and the stabilization of arsenic: Implications for soil remediation

Lyu,

Feng,

Zhan

et al. 2024

J. Cent. South Univ.

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Preparation and performance of FeCo bimetallic organic frameworks with super adsorption and excellent peroxymonosulfate activation for tetracycline removal

Zhang,

Shao,

2024

Arabian Journal of Chemistry

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Enhanced peroxymonosulfate activation for antibiotics degradation over FeOOH regulated by kaolinite with pleiotropic effects

Cited by 12 publications

References 44 publications

α-FeOOH-Modified Sn/N-Codoped TiO₂ Bifunctional Composites for As(III) Removal through Photocatalytic Oxidation and Simultaneous Adsorption

α-FeOOH-Modified Sn/N-Codoped TiO₂ Bifunctional Composites for As(III) Removal through Photocatalytic Oxidation and Simultaneous Adsorption

Cooperative effect of citric acid and pyrite on the slow-release of silicon from coal gangue and the stabilization of arsenic: Implications for soil remediation

Preparation and performance of FeCo bimetallic organic frameworks with super adsorption and excellent peroxymonosulfate activation for tetracycline removal

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Enhanced peroxymonosulfate activation for antibiotics degradation over FeOOH regulated by kaolinite with pleiotropic effects

Cited by 12 publications

References 44 publications

α-FeOOH-Modified Sn/N-Codoped TiO2 Bifunctional Composites for As(III) Removal through Photocatalytic Oxidation and Simultaneous Adsorption

α-FeOOH-Modified Sn/N-Codoped TiO2 Bifunctional Composites for As(III) Removal through Photocatalytic Oxidation and Simultaneous Adsorption

Cooperative effect of citric acid and pyrite on the slow-release of silicon from coal gangue and the stabilization of arsenic: Implications for soil remediation

Preparation and performance of FeCo bimetallic organic frameworks with super adsorption and excellent peroxymonosulfate activation for tetracycline removal

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α-FeOOH-Modified Sn/N-Codoped TiO₂ Bifunctional Composites for As(III) Removal through Photocatalytic Oxidation and Simultaneous Adsorption

α-FeOOH-Modified Sn/N-Codoped TiO₂ Bifunctional Composites for As(III) Removal through Photocatalytic Oxidation and Simultaneous Adsorption