Visible light-assisted heterogeneous Fenton with ZnFe 2 O 4 for the degradation of Orange II in water

Cai, Chun; Zhang, Zhuoyue; Jin, Liu; Ni, Shan; Zhang, Hui; Dionysiou, Dionysios D.

doi:10.1016/j.apcatb.2015.09.056

Cited by 387 publications

(136 citation statements)

References 67 publications

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“…Advanced oxidation processes based on Å OH or Å O 2 À have been commonly used in the degradation of persistent organic pollutants in water. For example, lots of technologies have been applied to generate Å OH or Å O 2 À radicals for aniline degradation including Fenton process [6,7], photocatalysis [8][9][10], catalytic wet oxidation [11][12][13], ozonation [14][15][16] and electrochemical oxidation [17][18][19][20]. However, these technologies have several limitations such as metal leaching, low pH rang (3)(4), excessive sludge production, and the high hydrogen peroxide transportation cost [1,4].…”

Section: Introductionmentioning

confidence: 99%

Direct fabrication of lamellar self-supporting Co3O4/N/C peroxymonosulfate activation catalysts for effective aniline degradation

Huang

Zhang

et al. 2017

Chemical Engineering Journal

107

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Section: Introductionmentioning

confidence: 99%

Direct fabrication of lamellar self-supporting Co3O4/N/C peroxymonosulfate activation catalysts for effective aniline degradation

Huang

Zhang

et al. 2017

Chemical Engineering Journal

107

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“…As reported, the peak at 710.2 eV can be attributed to Fe 2+ , and the other three peaks caused by Fe 3+ . By calculation, the ratio of Fe 2+ and Fe 3+ changed from 0.33 to 0.51 after reaction, confirming the occurrence of reaction in the presence of H 2 O 2 and UV–vis light …”

Section: Resultsmentioning

confidence: 54%

“…Moreover, cancer cells can generate abundant H 2 O 2 compared to normal cells. Through Fenton reaction, H 2 O 2 can be activated by Fe 3+ /Fe 2+ to produce toxic hydroxyl radicals (•OH) (Equations and ), which can damage biological molecules to induce cell apoptosis . Furthermore, more •OH can be generated by recycling of Fe 2+ with irradiation of UV through Equation

{normalH}_{2} {normalO}_{2} + {Fe}^{2 +} \to {Fe}^{3 +} + • OH + {OH}^{-}

{Fe}^{3 +} + {normalH}_{2} {normalO}_{2} \to {Fe}^{2 +} + {HO}_{2}^{-} + {normalH}^{+}

Fe {(normalOH)}^{2 +} + h ν \to {Fe}^{2 +} + • OH

…”

Section: Introductionmentioning

confidence: 99%

Glutathione Mediated Size‐Tunable UCNPs‐Pt(IV)‐ZnFe₂O₄ Nanocomposite for Multiple Bioimaging Guided Synergetic Therapy

Dai

Yang

et al. 2018

Small

106

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Here a multifunctional nanoplatform (upconversion nanoparticles (UCNPs)-platinum(IV) (Pt(IV))-ZnFe O , denoted as UCPZ) is designed for collaborative cancer treatment, including photodynamic therapy (PDT), chemotherapy, and Fenton reaction. In the system, the UCNPs triggered by near-infrared light can convert low energy photons to high energy ones, which act as the UV-vis source to simultaneously mediate the PDT effect and Fenton's reaction of ZnFe O nanoparticles. Meanwhile, the Pt(IV) prodrugs can be reduced to high virulent Pt(II) by glutathione in the cancer cells, which can bond to DNA and inhibit the copy of DNA. The synergistic therapeutic effect is verified in vitro and in vivo results. The cleavage of Pt(IV) from UCNPs during the reduction process can shift the larger UCPZ nanoparticles (NPs) to the smaller ones, which promotes the enhanced permeability and retention (EPR) and deep tumor penetration. In addition, due to the inherent upconversion luminescence (UCL) and the doped Yb and Fe in UCPZ, this system can serve as a multimodality bioimaging contrast agent, covering UCL, X-ray computed tomography, magnetic resonance imaging, and photoacoustic. A smart all-in-one imaging-guided diagnosis and treatment system is realized, which should have a potential value in the treatment of tumor.

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“…Fenton catalyst for removal contaminants in wastewater treatment [24]. The magnetite ability to promote photo-Fenton reactions even under circum neutral pH conditions, the limited iron leaching and its easy magnetic separation makes magnetite a promising catalyst in wastewater treatment applications.…”

Section: Metal Doped Fe3o4 Based Catalystsmentioning

confidence: 99%

The Role of Metal-Doped into Magnetite Catalysts for the Photo-Fenton Degradation of Organic Pollutants

Nguyen¹,

Ngo²

2018

JSEMAT

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Recently, the incorporation of transition metals into magnetite increasing the heterogeneous Fenton catalytic activity of magnetite with high efficiency and interesting magnetic properties applied for degradation of organic pollutants in water purification and wastewater treatment have attracted more and more researchers. In this review, using of one or some metal doped magnetite based systems in heterogeneous Fenton, or photo-Fenton processes are discussed. Then, the role of metal doped species for the enhanced efficiency of degradation process is presented. Finally, possible reaction mechanism for the photo-Fenton degradation pollutants in the present of metal doped magnetite is also given.

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Visible light-assisted heterogeneous Fenton with ZnFe 2 O 4 for the degradation of Orange II in water

Cited by 387 publications

References 67 publications

Direct fabrication of lamellar self-supporting Co3O4/N/C peroxymonosulfate activation catalysts for effective aniline degradation

Direct fabrication of lamellar self-supporting Co3O4/N/C peroxymonosulfate activation catalysts for effective aniline degradation

Glutathione Mediated Size‐Tunable UCNPs‐Pt(IV)‐ZnFe₂O₄ Nanocomposite for Multiple Bioimaging Guided Synergetic Therapy

The Role of Metal-Doped into Magnetite Catalysts for the Photo-Fenton Degradation of Organic Pollutants

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Visible light-assisted heterogeneous Fenton with ZnFe 2 O 4 for the degradation of Orange II in water

Cited by 387 publications

References 67 publications

Direct fabrication of lamellar self-supporting Co3O4/N/C peroxymonosulfate activation catalysts for effective aniline degradation

Direct fabrication of lamellar self-supporting Co3O4/N/C peroxymonosulfate activation catalysts for effective aniline degradation

Glutathione Mediated Size‐Tunable UCNPs‐Pt(IV)‐ZnFe2O4 Nanocomposite for Multiple Bioimaging Guided Synergetic Therapy

The Role of Metal-Doped into Magnetite Catalysts for the Photo-Fenton Degradation of Organic Pollutants

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Glutathione Mediated Size‐Tunable UCNPs‐Pt(IV)‐ZnFe₂O₄ Nanocomposite for Multiple Bioimaging Guided Synergetic Therapy