Highly efficient catalytic ozonation degradation of levofloxacin by facile hydrogenation-modified red mud wastes

Cui, Yan; Cheng, Zhiliang; Zhang, Xuan; Zhang, Yumei; Chen, Xianghan; Zeng, Guoquan; Xu, Heng

doi:10.1016/j.envpol.2023.122149

Cited by 8 publications

(1 citation statement)

References 57 publications

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“…Concrete with red mud also meets safety and toxicity standards and will not have negative effects [25]. Attempts have been made to prepare red mud as a catalyst after modification treatment for the degradation of levofloxacin [26] and sulfamethoxazole [27], both of which could achieve more than 90% degradation within 1 h. Red mud and paper ash were used to prepare a composite material [28], which can adsorb toxic and harmful elements in the soil, thus achieving the purpose of soil remediation. Li et al [29] showed that, after the addition of red mud, it can form a new phase that is favorable for the solidification of heavy metals, and reduce the leaching of a variety of heavy metals in fly ash.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of BiOX-Red Mud/Granulated Blast Furnace Slag Geopolymer Microspheres for Photocatalytic Degradation of Formaldehyde

Lu,

Zhang,

Wang

et al. 2024

Materials

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Release of formaldehyde gas indoors is a serious threat to human health. The traditional adsorption method is not stable enough for formaldehyde removal. Photocatalytic degradation of formaldehyde is effective and rapid, but photocatalysts are generally expensive and not easy to recycle. In this paper, geopolymer microspheres were applied as matrix materials for photocatalysts loading to degrade formaldehyde. Geopolymer microspheres were prepared from red mud and granulated blast furnace slag as raw materials by alkali activation. When the red mud doping was 50%, the concentration of NaOH solution was 6 mol/L, and the additive amount was 30 mL, the prepared geopolymer microspheres possessed good morphological characteristics and a large specific surface area of 38.80 m2/g. With the loading of BiOX (X = Cl, Br, I) photocatalysts on the surface of geopolymer microspheres, 85.71% of formaldehyde gas were adsorbed within 60 min. The formaldehyde degradation rate of the geopolymer microspheres loaded with BiOI reached 87.46% within 180 min, which was 23.07% higher than that of the microspheres loaded with BiOBr, and 50.50% higher than that of the microspheres loaded with BiOCl. While ensuring the efficient degradation of formaldehyde, the BiOX (X = Cl, Br, I)-loaded geopolymer microspheres are easy to recycle and can save space. This work not only promotes the resource utilization of red mud and granulated blast furnace slag, but also provides a new idea on the formation of catalysts in the process of photocatalytic degradation of formaldehyde.

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Section: Introductionmentioning

confidence: 99%

Synthesis of BiOX-Red Mud/Granulated Blast Furnace Slag Geopolymer Microspheres for Photocatalytic Degradation of Formaldehyde

Lu,

Zhang,

Wang

et al. 2024

Materials

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s‐scheme3D/3D Bi⁰/BiOBr/P Doped g‐C3 N4 with Oxygen Vacancies (Ov) for Photodegradation of Pharmaceuticals: In‐situ H₂O₂ Production and Plasmon Induced Stability

Malefane,

Managa,

Nkambule

et al. 2024

ChemSusChem

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Highlights S‐scheme heterojunction was fabricated through in‐situ solvothermal method 3D worm‐like BOR and 3D rocky stone CNPO composite exhibited high photoactivity through •O2− 3D/3D junction occurred through bridging bond for efficient charge separation Waste H2O2 was turned into wealth •OH for mineralization of OTC and LVX Bi0 plasmon assisted stability and H2O2 decomposition and Ov influenced its production

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Switching reactive oxygen species reactions derived from Mn–Pt anchored zeolite for selective catalytic ozonation

Zeng,

Zhuo,

Pan

et al. 2024

Environmental Pollution

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Highly efficient catalytic ozonation degradation of levofloxacin by facile hydrogenation-modified red mud wastes

Cited by 8 publications

References 57 publications

Synthesis of BiOX-Red Mud/Granulated Blast Furnace Slag Geopolymer Microspheres for Photocatalytic Degradation of Formaldehyde

Synthesis of BiOX-Red Mud/Granulated Blast Furnace Slag Geopolymer Microspheres for Photocatalytic Degradation of Formaldehyde

s‐scheme3D/3D Bi⁰/BiOBr/P Doped g‐C3 N4 with Oxygen Vacancies (Ov) for Photodegradation of Pharmaceuticals: In‐situ H₂O₂ Production and Plasmon Induced Stability

Switching reactive oxygen species reactions derived from Mn–Pt anchored zeolite for selective catalytic ozonation

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Highly efficient catalytic ozonation degradation of levofloxacin by facile hydrogenation-modified red mud wastes

Cited by 8 publications

References 57 publications

Synthesis of BiOX-Red Mud/Granulated Blast Furnace Slag Geopolymer Microspheres for Photocatalytic Degradation of Formaldehyde

Synthesis of BiOX-Red Mud/Granulated Blast Furnace Slag Geopolymer Microspheres for Photocatalytic Degradation of Formaldehyde

s‐scheme3D/3D Bi0/BiOBr/P Doped g‐C3 N4 with Oxygen Vacancies (Ov) for Photodegradation of Pharmaceuticals: In‐situ H2O2 Production and Plasmon Induced Stability

Switching reactive oxygen species reactions derived from Mn–Pt anchored zeolite for selective catalytic ozonation

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s‐scheme3D/3D Bi⁰/BiOBr/P Doped g‐C3 N4 with Oxygen Vacancies (Ov) for Photodegradation of Pharmaceuticals: In‐situ H₂O₂ Production and Plasmon Induced Stability