The effect of ZnO or TiO 2  loaded nanoparticles on the adsorption and photocatalytic performance of Cu-BTC and ZIF-8 MOFs

Ökte, A. Neren; Karamanis, D.; Chalkia, Ekaterini; Tuncel, D.

doi:10.1016/j.matchemphys.2016.11.059

Cited by 40 publications

(23 citation statements)

References 31 publications

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“…They found that metal oxide composite could enhance dispersion of the active phase. Binary photocatalytic composites (TiO 2 /Cu-BTC) were tested for the decolorization of methylene blue (MB) and methyl orange (MO), and Cu-BTC based composites show higher dark adsorption abilities and higher degradation efficiencies toward MB [29]. V. Ramasubbu et al [30] synthesized a TiO 2 aerogel-Cu-BTC composite which showed a significant increase of absorption in the visible region.…”

Section: Introductionmentioning

confidence: 99%

Combining the Photocatalysis and Absorption Properties of Core-Shell Cu-BTC@TiO2 Microspheres: Highly Efficient Desulfurization of Thiophenic Compounds from Fuel

Liu

et al. 2018

Materials

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A core-shell Cu-benzene-1,3,5-tricarboxylic acid (Cu-BTC)@TiO2 was successfully synthesized for photocatalysis-assisted adsorptive desulfurization to improve adsorptive desulfurization (ADS) performance. Under ultraviolet (UV) light irradiation, the TiO2 shell on the surface of Cu-BTC achieved photocatalytic oxidation of thiophenic S-compounds, and the Cu-BTC core adsorbed the oxidation products (sulfoxides and sulfones). The photocatalyst and adsorbent were combined using a distinct core-shell structure. The morphology and structure of the fabricated Cu-BTC@TiO2 microspheres were verified by scanning electron microscopy, high-resolution transmission electron microscopy, energy-dispersive x-ray spectroscopy, X-ray powder diffraction, nitrogen adsorption-desorption and X-ray photoelectron spectroscopy analyses. A potential formation mechanism of Cu-BTC@TiO2 is proposed based on complementary experiments. The sulfur removal efficiency of the microspheres was evaluated by selective adsorption of benzothiophene (BT) and dibenzothiophene (DBT) from a model fuel with a sulfur concentration of 1000 ppmw. Within a reaction time of 20 min, the BT and DBT conversion reached 86% and 95%, respectively, and achieved ADS capacities of 63.76 and 59.39 mg/g, respectively. The BT conversion and DBT conversion obtained using Cu-BTC@TiO2 was 6.5 and 4.6 times higher, respectively, than that obtained using Cu-BTC. A desulfurization mechanism was proposed, the interaction between thiophenic sulfur compounds and Cu-BTC@TiO2 microspheres was discussed, and the kinetic behavior was analyzed.

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Section: Introductionmentioning

confidence: 99%

Combining the Photocatalysis and Absorption Properties of Core-Shell Cu-BTC@TiO2 Microspheres: Highly Efficient Desulfurization of Thiophenic Compounds from Fuel

Liu

et al. 2018

Materials

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“…In addition, π–π interaction between the hydrogen bonding and benzene ring also enhance the attraction between them. In the contrary, the interaction between Cu‐BTC and MO is weaker resulting from the repulsive force (oxygenous ligand groups of Cu‐BTC and sulfonic groups of MO) …”

Section: Resultsmentioning

confidence: 99%

High Performance Composite Photocatalysts based on Metal Organic Framework as the Modifier

Ren

Zhang

Huang

et al. 2020

Zeitschrift anorg allge chemie

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Photocatalysis attracts increasing attention because of the deteriorating environment pollution. Metal organic frameworks (MOFs) is deemed as one kind of promising modifiers to improve the photocatalytic performance of traditional semiconductors by their large BET areas. In this study, reduced graphene oxide (RGO) and Cu-BTC are utilized to decorate TiO 2 to enhance the corresponding photoactivity. Morphology of the as-prepared composite is detected by SEM and XRD curve, while the UV-and visible-light activities are estimated

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“…We believe that the presented approach can be used for the synthesis of other materials and be extended to synthesize composite structures and core–shell nanoparticles at the laboratory scale 62 , 63 . The synthesis can be performed not only in a hydrogel but also in other porous media, in which the mass transport can be realized by the combination of diffusion and advection or solely by advection.…”

Section: Discussionmentioning

confidence: 99%

Synthesis of zeolitic imidazolate framework-8 and gold nanoparticles in a sustained out-of-equilibrium state

Dúzs

Holló

Schuszter

et al. 2022

Sci Rep

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The design and synthesis of crystalline materials are challenging due to the proper control over the size and polydispersity of the samples, which determine their physical and chemical properties and thus applicability. Metal − organic frameworks (MOFs) are promising materials in many applications due to their unique structure. MOFs have been predominantly synthesized by bulk methods, where the concentration of the reagents gradually decreased, which affected the further nucleation and crystal growth. Here we show an out-of-equilibrium method for the generation of zeolitic imidazolate framework-8 (ZIF-8) crystals, where the non-equilibrium crystal growth is maintained by a continuous two-side feed of the reagents in a hydrogel matrix. The size and the polydispersity of the crystals are controlled by the fixed and antagonistic constant mass fluxes of the reagents and by the reaction time. We also present that our approach can be extended to synthesize gold nanoparticles in a redox process.

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The effect of ZnO or TiO 2 loaded nanoparticles on the adsorption and photocatalytic performance of Cu-BTC and ZIF-8 MOFs

Cited by 40 publications

References 31 publications

Combining the Photocatalysis and Absorption Properties of Core-Shell Cu-BTC@TiO2 Microspheres: Highly Efficient Desulfurization of Thiophenic Compounds from Fuel

Combining the Photocatalysis and Absorption Properties of Core-Shell Cu-BTC@TiO2 Microspheres: Highly Efficient Desulfurization of Thiophenic Compounds from Fuel

High Performance Composite Photocatalysts based on Metal Organic Framework as the Modifier

Synthesis of zeolitic imidazolate framework-8 and gold nanoparticles in a sustained out-of-equilibrium state

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