Cobalt-Tetracarboxyl-Phthalocyanine Linked with Fe3o4/Chitosan Microsphereas—Efficient Catalyst for Dye Degradation

Chen, Chen; Ma, Zhanhu; Zhou, Shiying; Li, Tianqi; Sun, Xiaoling

doi:10.1007/s10562-017-2149-7

Cited by 14 publications

(8 citation statements)

References 36 publications

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“…However, MPcs are usually prone to aggregate even in dilute solution, resulting in catalytically inactive dimers and oligomers 24 . Moreover, MPcs are difficult to separate and recycle, and the residue discharged into wastewater is prone to induce secondary pollution 25 . In this work, prepared tetraamino iron phthalocyanine (TAFePc) was loaded onto GO layers by solution intercalation, and PVA/GO@TAFePc nanocomposite hydrogels with catalytic activity were prepared via the in situ crosslinking method.…”

Section: Introductionmentioning

confidence: 99%

Poly(vinyl alcohol)/graphene oxide nanocomposite hydrogel with catalytic activity: the removal behavior and dual adsorption/catalytic degradation mechanism for dye wastewater

Zhao

2020

Polymer International

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The treatment of dye wastewater with traditional adsorption materials usually proceeds slowly with low removal efficiency and without completely eliminating dye molecules, leading to secondary pollution. In this work, poly(vinyl alcohol)/graphene oxide@tetraamino iron phthalocyanine (PVA/GO@TAFePc) nanocomposite hydrogels with catalytic activity were prepared via an in situ crosslinking method. Through interfacial covalent and π–π interactions, TAFePc was loaded onto GO layers with a high loading ratio, and GO@TAFePc was exfoliated and uniformly dispersed in the matrix. With increasing GO@TAFePc hybrid content, the pore size increased and a loose network structure was formed for the hydrogels, while the specific surface area rose significantly by using the hydrogel in a dye removal process, the removal rate of methylene blue (MB) increased sharply with contact time, reaching 98% in the presence of H2O2 with good reusability, and high removal efficiency was achieved for different dyes. The large surface area of the hydrogel was beneficial for MB adsorption. Meanwhile, under catalysis of TAFePc, a large amount of high activity ·OH was produced by H2O2 so as to degrade the MB molecules rapidly. Therefore, the MB degradation process for the composite hydrogel was ascribed to a dual adsorption/catalytic degradation mechanism. © 2020 Society of Industrial Chemistry

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Section: Introductionmentioning

confidence: 99%

Poly(vinyl alcohol)/graphene oxide nanocomposite hydrogel with catalytic activity: the removal behavior and dual adsorption/catalytic degradation mechanism for dye wastewater

Zhao

2020

Polymer International

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“…Assuming that Ni(II)–O–Ni(II) bridges are present in the NiTsPc/ION films, one should expect the existence of Fe(III)–O–Ni(II) as well. Chen et al have prepared nanocomposites of cobalt-tetracarboxyl-phthalocyanine linked with Fe 3 O 4 /chitosan microspheres for dye degradation . After structural analysis performed by FT-IR, UV–vis, and XPS spectroscopies, they concluded that the phthalocyanine molecules were linked to Fe 3 O 4 by electrostatic bonds, H-bonds, and coordination bonds as well, with the latter established by Co(II)–O–Fe(III) oxo bridges.…”

Section: Results and Discussionmentioning

confidence: 99%

Electrocatalytic Oxidation of Ethinyl Estradiol by an Iron Oxide Nanoparticle/Nickel Phthalocyanine Supramolecular Electrode

Ribeiro¹,

Souza²,

Pereira-da-Silva

et al. 2020

J. Phys. Chem. C

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Indium-doped tin oxide (ITO) substrates were surface-modified with layer-by-layer nanocomposite films of anionic nickel(II) tetrasulfonated phthalocyanine (NiTsPc) and positively charged iron oxide nanoparticles (IONs) aiming at the electrocatalytic oxidation of ethinyl estradiol (EE2). Atomic force microscopy and UV−vis and Raman spectroscopies suggest that the successive deposition of NiTsPc/ION bilayers forms a porous supramolecular structure driven by both electrostatic interaction and covalent Fe(III)−O−Ni(II) bridges. Cyclic and differential pulse voltammetry show that EE2 is effectively oxidized at the ITO/ (NiTsPc/ION) electrode while displaying an isolated and welldefined peak at +0.73 V (vs Ag/AgCl). Conversely, bare ITO and ITO modified by either ION or NiTsPc alone are unable to oxidize EE2. The benefit of the NiTsPc/ION bilayers for the EE2 oxidation is assigned to the charge-transfer process occurring between IONs and NiTsPc through the Fe(III)−O−Ni(II) bridge. This process suppresses the oxidation of both the phthalocyanine ring and Ni(II), which appear in the same potential range of EE2 oxidation and allow the electrons to be transferred from EE2 adsorbed onto IONs to the ITO substrate underneath. Therefore, this new sensing platform operates under a particular working principle in which analyte oxidation and subsequent charge transport are separately performed by its individual components.

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“…They can be applied to the determination of Cr( vi ) ions in water and soil samples. Chen et al 102 newly synthesized CoTcPc–chitosan/Fe 3 O 4 as an efficient catalyst for dye degradation under mild conditions (Fig. 21).…”

Section: Application Of Chitosan-based Fluorescent Probesmentioning

confidence: 99%

Preparation and application of chitosan-based fluorescent probes

Liang

Zuo

et al. 2022

Analyst

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Cobalt-Tetracarboxyl-Phthalocyanine Linked with Fe3o4/Chitosan Microsphereas—Efficient Catalyst for Dye Degradation

Cited by 14 publications

References 36 publications

Poly(vinyl alcohol)/graphene oxide nanocomposite hydrogel with catalytic activity: the removal behavior and dual adsorption/catalytic degradation mechanism for dye wastewater

Poly(vinyl alcohol)/graphene oxide nanocomposite hydrogel with catalytic activity: the removal behavior and dual adsorption/catalytic degradation mechanism for dye wastewater

Electrocatalytic Oxidation of Ethinyl Estradiol by an Iron Oxide Nanoparticle/Nickel Phthalocyanine Supramolecular Electrode

Preparation and application of chitosan-based fluorescent probes

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