Amorphous Fe2O3 nanoparticles embedded into hypercrosslinked porous polymeric matrix for designing an easily separable and recyclable photocatalytic system

Hojamberdiev, Mirabbos; Kadirova, Zukhra C.; Daminova, Shahlo S.; Razavi‐Khosroshahi, Hadi; Sharipov, Khasan T.; Miyauchi, Mutsumi; Teshima, Katsuya; Hasegawa, Masashi

doi:10.1016/j.apsusc.2018.10.098

Cited by 27 publications

(6 citation statements)

References 54 publications

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“…The spectrum at 300 K shows a broad doublet, with an isomer shi of IS ¼ 0.25(1) mm s À1 , which is typical for the high spin of Fe 3+ions. 45,46 There is no indication of the presence of Fe 2+ in the spectra. This corresponds to the colorimetric analysis of the Fe 2+ content in sample 1 (cf.…”

Section: Resultsmentioning

confidence: 97%

Characterization of an active ingredient made of nanoscale iron(oxyhydr)oxide for the treatment of hyperphosphatemia

et al. 2021

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Section: Resultsmentioning

confidence: 97%

Characterization of an active ingredient made of nanoscale iron(oxyhydr)oxide for the treatment of hyperphosphatemia

et al. 2021

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“…It is worth noting that the amorphous phase shows higher photocatalytic activity than the nanocrystals with the same diameter, which is due to the existence of hanging bonds and higher surface/bulk ratio in the amorphous phase, which has potential applications in photocatalysis. 26 For example, UiO-66/g-C 3 N 4 , 27 rGO@In 2 S 3 @UiO-66, 28 and PDA@UiO-66 29 showed good photocatalytic activity. In particular, the polymer matrix has advantages due to the lack of catalytic functional groups and the low cost of synthetic reagents.…”

Section: Introductionmentioning

confidence: 99%

“…To improve its photodegradation ability under visible light, semiconductor composites such as UiO-66@ZnIn 2 S 4 , Bi 2 S 3 /UiO-66, and Bi 2 MoO 6 /UiO-66(Zr) were successfully prepared. It is worth noting that the amorphous phase shows higher photocatalytic activity than the nanocrystals with the same diameter, which is due to the existence of hanging bonds and higher surface/bulk ratio in the amorphous phase, which has potential applications in photocatalysis . For example, UiO-66/g-C 3 N 4 , rGO@In 2 S 3 @UiO-66, and PDA@UiO-66 showed good photocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

In situ Growth of UiO-66 with Its Particle Size Reduced by 90% into Porous Polyacrylate: Experiments and Applications

Liu

Jin

Meng

2022

Ind. Eng. Chem. Res.

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In this study, we successfully synthesized a novel composite material UiO-66/polyacrylate (UiO/PA) by suspension polymerization and in situ growth of metal−organic frameworks (MOFs). Due to the control of heterogeneous nucleation and firm growth, nano-UiO-66 with a diameter of only 400 nm has been reduced by about 90%, resulting in lower transfer resistance, effective separation of photogenerated carriers, and more catalytic active sites exposed. Under visible light irradiation, UiO/PA with 48.7% loading can almost completely degrade rhodamine B (RhB) in 120 min and the corresponding degradation rate constant of RhB reached 0.0203 min −1 from 0 min −1 . After easy filtration and five cycles, the degradation rate is still above 85%. This study can provide new insights into effectively improving the photocatalytic performance of MOFs.

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“…[31] Although there are numerous reports of HCPs achieving great progress in the fields of CO 2 capture and storage, their photocatalytic applications for CO 2 conversion are restricted by the low quantum efficiency, relative to semiconductor photocatalysts like TiO 2 , due to the blocked conjugated structure by crosslinked methylene agent. [32,33] To combine the advantages of HCPs and TiO 2 photocatalyst, in the previous work, we proposed an in situ knitting strategy for constructing HCPs on TiO 2 surface using the functionalized graphene (FG) skeleton to provide the open phenyl group for covalent linking with syn-PhPh 3 . [34] The designed HCPs-TiO 2 -FG composite photocatalyst showed the enhanced CO 2 reduction efficiency with CH 4 production of 51.23 µmol g −1 h −1 without any other sacrificial reagents, resulting from high CO 2 uptake by the unique microporous structure of HCPs layers and improved electron transfer from TiO 2 to HCPs that mediated by graphene.…”

Section: Introductionmentioning

confidence: 99%

Grafting Hypercrosslinked Polymers on TiO₂ Surface for Anchoring Ultrafine Pd Nanoparticles: Dramatically Enhanced Efficiency and Selectivity toward Photocatalytic Reduction of CO₂ to CH₄

Zhan

Wang

Huang

et al. 2021

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Metal deposition with photocatalyst is a promising way to surmount the restriction of fast e−/h+ recombination to improve the photocatalytic performance. However, the improvement remains limited by the existing strategies adopted for depositing metal particles due to the serious aggregation and large unconnected area on photocatalyst surface. Here, a strategy is proposed by directly grafting hypercrosslinked polymers (HCPs) on TiO2 surface to construct Pd‐HCPs‐TiO2 composite with uniform dispersion of ultrafine Pd nanoparticles on HCPs surface. This composite with surface area of 373 m2 g−1 exhibits improved photocatalytic CO2 conversion efficiency to CH4 with an evolution rate of 237.4 µmol g−1 h−1 and selectivity of more than 99.9%. The enhancement can be ascribed to the grafted porous HCPs with high surface area and N heteroatom on TiO2 surface for the stabilization of Pd nanoparticles, favoring the electron transfer and CO2 adsorption for selective CH4 production. This strategy may hold the promise for design and construction of porous organic polymer with semiconductor for efficient photocatalytic conversion.

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Amorphous Fe2O3 nanoparticles embedded into hypercrosslinked porous polymeric matrix for designing an easily separable and recyclable photocatalytic system

Cited by 27 publications

References 54 publications

Characterization of an active ingredient made of nanoscale iron(oxyhydr)oxide for the treatment of hyperphosphatemia

Characterization of an active ingredient made of nanoscale iron(oxyhydr)oxide for the treatment of hyperphosphatemia

In situ Growth of UiO-66 with Its Particle Size Reduced by 90% into Porous Polyacrylate: Experiments and Applications

Grafting Hypercrosslinked Polymers on TiO₂ Surface for Anchoring Ultrafine Pd Nanoparticles: Dramatically Enhanced Efficiency and Selectivity toward Photocatalytic Reduction of CO₂ to CH₄

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Amorphous Fe2O3 nanoparticles embedded into hypercrosslinked porous polymeric matrix for designing an easily separable and recyclable photocatalytic system

Cited by 27 publications

References 54 publications

Characterization of an active ingredient made of nanoscale iron(oxyhydr)oxide for the treatment of hyperphosphatemia

Characterization of an active ingredient made of nanoscale iron(oxyhydr)oxide for the treatment of hyperphosphatemia

In situ Growth of UiO-66 with Its Particle Size Reduced by 90% into Porous Polyacrylate: Experiments and Applications

Grafting Hypercrosslinked Polymers on TiO2 Surface for Anchoring Ultrafine Pd Nanoparticles: Dramatically Enhanced Efficiency and Selectivity toward Photocatalytic Reduction of CO2 to CH4

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Grafting Hypercrosslinked Polymers on TiO₂ Surface for Anchoring Ultrafine Pd Nanoparticles: Dramatically Enhanced Efficiency and Selectivity toward Photocatalytic Reduction of CO₂ to CH₄