Preparation of K8[Cu(H2O)W11CrO39]@rGO-CeO2 nanocomposite and its photodegradation of Rhodamine B

Sun, Jinwei; Qiu-jie, Shan; Chen, Lin; Chen, Wei; Zhang, Xinjia; Yang, Chaoqun

doi:10.1016/j.inoche.2019.107506

Inorganic Chemistry Communications

2019

DOI: 10.1016/j.inoche.2019.107506

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Preparation of K8[Cu(H2O)W11CrO39]@rGO-CeO2 nanocomposite and its photodegradation of Rhodamine B

Jinwei Sun

Shan Qiu-jie

Lin Chen

et al.

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Cited by 14 publications

References 52 publications

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Controllable selectivity of carboxylic acids produced by H_3+n[PMo_12‐nV_nO₄₀]‐catalyzed oxidation of lignite and its oxidative mechanism analysis

Liang,

Zhao,

Liu

et al. 2023

ChemistrySelect

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Although the oxidation of lignite has been extensively studied, the factors affecting the selectivity of carboxylic acids (CAs) are unclear. This attractive work examines the changes in CAs selectivity when lignite is oxidized by H3+n[PMo12‐nVnO40] (HPA‐n, n=1‐5) and discloses the catalytic mechanism of HPA. The results show that the selectivity of benzene polycarboxylic acids and acetic acid (AA) increases with increasing vanadium content of HPA‐n, such as mellitic acid and benzenepentacarboxylic acid from 0.8 % and 3.0 % to 5.4 % and 16.2 %, respectively. Consequently, the differences in the concentration of HPA or H2SO4 used to obtain optimal formic acid and AA yields confirm that the intrinsic properties of CAs calculated by Gaussian 09 can also affect their selectivity. HPA can not only activate lignite through electron transfer, but also further activate oxygen, leading to the generation of active substance ⋅OH in water. Consequentially, ⋅OH as the key reactive substance can promote the breakage of bridge bonds, side chains and condensed aromatic rings during HPA‐catalyzed oxidation of lignite. Thus, the oxidation pathway of lignite over HPA is proposed. This work constructs a relationship between oxidation capacity and CAs selectivity and discloses the lignite oxidation pathway at the molecular level, which is a significant progress in HPA‐catalyzed conversion of lignite.

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Controllable selectivity of carboxylic acids produced by H_3+n[PMo_12‐nV_nO₄₀]‐catalyzed oxidation of lignite and its oxidative mechanism analysis

Liang,

Zhao,

Liu

et al. 2023

ChemistrySelect

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Preparation, characterization and photocatalytic performance of K₈[Fe(H₂O)W₁₁MnO₃₉]/PANI/TiO₂ ternary composite

Liu

Qiu-jie

Chen

et al. 2021

Zeitschrift anorg allge chemie

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A new ternary composite catalyst, K8[Fe(H2O)W11MnO39]/PANI/TiO2, was synthesized by electrostatic self‐assembly method, of which K8[Fe(H2O)W11MnO39] was prepared by direct synthesis method, and PANI/TiO2 was prepared by coating polyaniline on the surface of TiO2 particles using chemical oxidation method with (NH4)2S2O8 as oxidant. Then, this ternary composite material was characterized by infrared (IR) spectroscopy, ultraviolet‐visible spectroscopy, X‐ray diffraction, scanning electron microscopy and N2 adsorption‐desorption, and its photocatalytic performance was explored through degradation experiments with gentian violet as an organic pollutant. The results showed that K8[Fe(H2O)W11MnO39]/PANI/TiO2 was successfully synthesized and its Keggin structure still remained with good stability. Under the optimal photocatalytic conditions, the decolorization rate of gentian violet by the ternary composite catalyst could reach to 92.93 %. After being recycled three times, the new composite catalyst still maintains good catalytic activity, indicating that it has a strong ability and reusability to degrade gentian violet with an excellent research potential.

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Synthesis, characterization and photocatalytic activity of a new type of high-efficiency polyacid composite

et al. 2021

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Preparation of K8[Cu(H2O)W11CrO39]@rGO-CeO2 nanocomposite and its photodegradation of Rhodamine B

Cited by 14 publications

References 52 publications

Controllable selectivity of carboxylic acids produced by H_3+n[PMo_12‐nV_nO₄₀]‐catalyzed oxidation of lignite and its oxidative mechanism analysis

Controllable selectivity of carboxylic acids produced by H_3+n[PMo_12‐nV_nO₄₀]‐catalyzed oxidation of lignite and its oxidative mechanism analysis

Preparation, characterization and photocatalytic performance of K₈[Fe(H₂O)W₁₁MnO₃₉]/PANI/TiO₂ ternary composite

Synthesis, characterization and photocatalytic activity of a new type of high-efficiency polyacid composite

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Preparation of K8[Cu(H2O)W11CrO39]@rGO-CeO2 nanocomposite and its photodegradation of Rhodamine B

Cited by 14 publications

References 52 publications

Controllable selectivity of carboxylic acids produced by H3+n[PMo12‐nVnO40]‐catalyzed oxidation of lignite and its oxidative mechanism analysis

Controllable selectivity of carboxylic acids produced by H3+n[PMo12‐nVnO40]‐catalyzed oxidation of lignite and its oxidative mechanism analysis

Preparation, characterization and photocatalytic performance of K8[Fe(H2O)W11MnO39]/PANI/TiO2 ternary composite

Synthesis, characterization and photocatalytic activity of a new type of high-efficiency polyacid composite

Contact Info

Product

Resources

About

Controllable selectivity of carboxylic acids produced by H_3+n[PMo_12‐nV_nO₄₀]‐catalyzed oxidation of lignite and its oxidative mechanism analysis

Controllable selectivity of carboxylic acids produced by H_3+n[PMo_12‐nV_nO₄₀]‐catalyzed oxidation of lignite and its oxidative mechanism analysis

Preparation, characterization and photocatalytic performance of K₈[Fe(H₂O)W₁₁MnO₃₉]/PANI/TiO₂ ternary composite