Preparation, characterization, and photocatalytic activity of three-dimensionally ordered macroporous hybrid monosubstituted polyoxometalate K 5 [Co(H 2 O)PW 11 O 39 ] amine functionalized titanium catalysts

Lu, Lu; Li, Li; Hu, Tianyu; Zhang, Wenzhi; Huang, Xiandan; Zhang, Jianqi; Liu, Xijun

doi:10.1016/j.molcata.2014.06.037

Cited by 29 publications

(10 citation statements)

References 32 publications

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“…During the typical synthesis of the catalysts, we first prepared the polystyrene (PS) colloidal crystal microspheres (diameters: ca. 380 nm) in a soap-free emulsion, polymerized as in the literature approach [24,37]. Then, the PS colloidal crystals microspheres passed through centrifugation at 4000 rpm for 4 h to obtain the suspended template.…”

Section: Preparation Of the Catalystmentioning

confidence: 99%

Synthesis of Three-Dimensionally Ordered Macroporous NiCe Catalysts for Oxidative Dehydrogenation of Propane to Propene

et al. 2018

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Three-dimensionally ordered macroporous (3DOM) NiCe catalysts with different Ni/Ce molar ratio were fabricated using the colloidal crystal templating method. The physic-chemical properties of the samples were characterized by various techniques, including N 2 adsorption-desorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman, and H 2 -temperature-programmed reduction (TPR) characterizations. The results revealed that the 3DOM NiCe samples preserved the three-dimensionally ordered macroporous channels with interlinked micro-or mesoporous structure and highly dispersed nickel oxide species in the framework upon different amount of nickel incorporation. In the evaluation of the oxidative dehydrogenation (ODH) of propane, the 3DOM NiCe catalysts exhibited higher selectivity and yield to propene than the amorphous NiCe catalyst. An optimum yield of propene of 11.9% with the 30.3% propane conversion at 375 • C was obtained over the 3DOM 2NiCe catalyst. Combining XRD, TPR, and Raman analysis, it could be found that the nickel incorporation in CeO 2 lattice produced a high concentration of oxygen vacancies that were the active sites for the oxidative dehydrogenation of propane. Besides this, the 3DOM structure promoted the rapid diffusion of the reactants and products-favorable for the generation of propene in the ODH of propane.

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Section: Preparation Of the Catalystmentioning

confidence: 99%

Synthesis of Three-Dimensionally Ordered Macroporous NiCe Catalysts for Oxidative Dehydrogenation of Propane to Propene

et al. 2018

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“…Materials like spherical-shaped C-TiO 2 , 3D ordered macroporous 3DOM PW 11 Co-APS-TiO 2 with interconnected honeycomb pore structure, spherical crystal ZnO, shapeless Fe 2 O 3 -TiO 2 , metal ion-doped TiO 2 , irregular Bi 2 WO 6 Porphyrin/SiO 2 / Cp*Rh(bpy)Cl Hybrid to mimic chloroplast, etc. [137][138][139][140][141][142][143].…”

Section: Sol-gelmentioning

confidence: 99%

A review on the progress of nanostructure materials for energy harnessing and environmental remediation

et al. 2018

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The nanostructured materials offer various advantages as they provide more flexible space for ease reconstruction, as their nanosize expands the limits and results in confinement effect, enhanced mechanical stability, and large surface area, and make them suitable for photocatalytic activities. The advancement in synthesis techniques provides the freedom to alter its physical properties as per the demand. This article provides a 360° view point on the nanomaterials which are used for solar energy harnessing with respect to environmental and energy application. The discussion emphasizes on various synthesis methods of nanostructured materials, their mechanistic features, usage in demanding applications such as photosplitting of water for hydrogen production, artificial photosynthesis, and water and wastewater treatment with an endnote highlighting the future scope of nanomaterials for real-world applications.

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“…The photocatalytic activity of the catalysts can be further improved due to the increase of active sites of the macroporous composites. In addition, compared with the sample without PS template treatment, the as-synthesized 3DOM TiO 2 -ZrO 2 composites possess an open, transparent and orderly macroporous structure; this is one of the reasons that the composite has high activity under microwave radiation [25,31,32,46,47]. Fig.…”

Section: Photocatalytic Activitymentioning

confidence: 99%

“…Accordingly, we conducted research on a series of 3DOM materials [31,32]. We find that the structure and the morphology of the macropores often restrict the photocatalytic efficiency.…”

Section: Introductionmentioning

confidence: 99%

Multi-layer and open three-dimensionally ordered macroporous TiO2–ZrO2 composite: diversified design and the comparison of multiple mode photocatalytic performance

Zhang

Liu

et al. 2015

Materials & Design

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Preparation, characterization, and photocatalytic activity of three-dimensionally ordered macroporous hybrid monosubstituted polyoxometalate K 5 [Co(H 2 O)PW 11 O 39 ] amine functionalized titanium catalysts

Cited by 29 publications

References 32 publications

Synthesis of Three-Dimensionally Ordered Macroporous NiCe Catalysts for Oxidative Dehydrogenation of Propane to Propene

Synthesis of Three-Dimensionally Ordered Macroporous NiCe Catalysts for Oxidative Dehydrogenation of Propane to Propene

A review on the progress of nanostructure materials for energy harnessing and environmental remediation

Multi-layer and open three-dimensionally ordered macroporous TiO2–ZrO2 composite: diversified design and the comparison of multiple mode photocatalytic performance

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