Fabricating a Fe3O4@HNTs nanoreactor to expedite heterogeneous Fenton-like reactions

Xu, Huan-Yan; Xu, Yan; Zhang, Siqun; Dai, Li-Yuan; Wang, Yuan

doi:10.1016/j.matlet.2023.133985

Cited by 19 publications

(2 citation statements)

References 9 publications

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“…After calcination from 600 to 1200 °C, the peak at 8.96 ° disappears due to conversion to dehydrated halloysite (halloysite 7 Å) (Figure 4b). After heat treatment at 600, 800, and 1000 °C, in all halloysite samples, quartz is observed in pristine form, and the halloysite crystalline phase is converted into an amorphous phase through dihydroxylation [37]. Finally, when the temperature reaches 1200 °C, recrystallization occurs, and the mullite diffraction peak (ICDD # 015-0776) appears next to the quartz peak (Figure 4b) [28,38].…”

Section: Halloysite Structure and Characterizationmentioning

confidence: 97%

Halloysite-TiO2 Nanocomposites for Water Treatment: A Review

2023

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Halloysite nanotubes (HNTs) are clay minerals with a tubular structure that can be used for many different applications in place of carbon nanotubes. Indeed, HNTs display low/non-toxicity, are biocompatible, and can be easily prepared. Moreover, the aluminum and silica groups present on HNTs’ inner and outer surfaces facilitate the interaction with various functional agents, such as alkalis, organosilanes, polymers, surfactants, and nanomaterials. This allows the deposition of different materials, for instance, metal and non-metal oxides, on different substrate types. This review article first briefly presents HNTs’ general structure and the various applications described in the last 20 years (e.g., drug delivery, medical implants, and energy storage). Then, it discusses in detail HNT applications for water purification (inorganic and organic pollutants). It focuses particularly on HNT-TiO2 composites that are considered very promising photocatalysts due to their high specific surface area and adsorption capacity, large pore volume, good stability, and mechanical features.

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Section: Halloysite Structure and Characterizationmentioning

confidence: 97%

Halloysite-TiO2 Nanocomposites for Water Treatment: A Review

2023

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“…[34,35] Moreover, Fe 3 O 4 nanoparticles are highly efficient catalysts in a heterogeneous Fenton-like process due to the presence of Fe 2 + ions in their structure, which initiate * OH formation reactions. [36,37] Magnetite can be reused after magnetic separation and is nontoxic if released into the environment. [38,39] The facile and inexpensive ways to obtain magnetite is the electrochemical method, which allows easy control of particle size by adjusting the applied current density or oxidation potential.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Synthesis of Superparamagnetic Fe₃O₄ Nanoparticles for the Photo‐Fenton oxidation of Rhodamine B

et al. 2023

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Magnetite (Fe3O4) is one of the widely used materials as a catalyst in the photo‐Fenton process for the oxidation of dyes. We report about the electrochemical synthesis of the superparamagnetic Fe3O4 nanoparticles. The structure, morphology, chemical composition, and chemical state of the catalyst were characterized. The synthesized samples of superparamagnetic Fe3O4 nanoparticles were characterized using scanning electron microscopy, X‐ray diffraction spectroscopy (XRD), Raman shift spectroscopy, and vibrating magnetometer (VSM). The diffraction peaks and Raman shift spectra confirm the formation of Fe3O4. Superparamagnetic Fe3O4 nanoparticles were used as a catalyst for the oxidation of Rhodamine B (RhB) in a photo‐Fenton‐like process. The effect of operating parameters, including H2O2 concentration, catalyst concentration, and RhB concentration, on the RhB decomposition efficiency was investigated. The rate of color removal was 85 % after 12 minutes at RhB concentration of 2 mg/L, H2O2 concentration of 0.18 mM, and Fe3O4 concentration of 0.2 g/L. In addition, electrochemically synthesized superparamagnetic Fe3O4 nanoparticles showed that the catalyst activity decreased by only 7 % during recycling experiments, indicating long‐term stability of the sample.

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Enhanced Heterogeneous Fenton-Like Degradation by Fe/Cu-TA Encapsulated Melamine Sponge

Ouyang,

Chen,

Reheman

et al. 2024

Catal Lett

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Fabricating a Fe3O4@HNTs nanoreactor to expedite heterogeneous Fenton-like reactions

Cited by 19 publications

References 9 publications

Halloysite-TiO2 Nanocomposites for Water Treatment: A Review

Halloysite-TiO2 Nanocomposites for Water Treatment: A Review

Electrochemical Synthesis of Superparamagnetic Fe₃O₄ Nanoparticles for the Photo‐Fenton oxidation of Rhodamine B

Enhanced Heterogeneous Fenton-Like Degradation by Fe/Cu-TA Encapsulated Melamine Sponge

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Fabricating a Fe3O4@HNTs nanoreactor to expedite heterogeneous Fenton-like reactions

Cited by 19 publications

References 9 publications

Halloysite-TiO2 Nanocomposites for Water Treatment: A Review

Halloysite-TiO2 Nanocomposites for Water Treatment: A Review

Electrochemical Synthesis of Superparamagnetic Fe3O4 Nanoparticles for the Photo‐Fenton oxidation of Rhodamine B

Enhanced Heterogeneous Fenton-Like Degradation by Fe/Cu-TA Encapsulated Melamine Sponge

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About

Electrochemical Synthesis of Superparamagnetic Fe₃O₄ Nanoparticles for the Photo‐Fenton oxidation of Rhodamine B