A MOF-on-MOF strategy to construct double Z-scheme heterojunction for high-performance photocatalytic degradation

Sepehrmansourie, Hassan; Alamgholiloo, Hassan; Pesyan, Nader Noroozi; Zolfigol, Mohammad Ali

doi:10.1016/j.apcatb.2022.122082

Cited by 178 publications

(59 citation statements)

References 68 publications

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“…Nowadays, metal–organic frameworks (MOFs) have been known as a unique type of porous solid materials, because they have been utilized in different fields such as drug delivery, catalyst, photocatalyst, battery, super capacitor, sensor, gas storage, separation and adsorption of molecules. 1–3 These materials consist of multifunctional organic materials bound to metal or metal clusters through coordinated components such as carboxylates to form crystalline materials with high surface area and high thermal stability. 4–8 Among them, the post-modification of metal–organic frameworks can be carried out with metal, acid and basic groups for preparation of biological molecules, which make motivational enzymes attractive for catalytic processes.…”

Section: Introductionmentioning

confidence: 99%

A convenient catalytic method for preparation of new tetrahydropyrido[2,3-d]pyrimidines via a cooperative vinylogous anomeric based oxidation

et al. 2022

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Section: Introductionmentioning

confidence: 99%

A convenient catalytic method for preparation of new tetrahydropyrido[2,3-d]pyrimidines via a cooperative vinylogous anomeric based oxidation

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“…However, a survey XPS spectrum of Zr-MOF/Ti-MOF/g-C 3 N 4 shows the relationship between carbon and other elements, including nitrogen, oxygen, zirconium, and titanium, with atomic ratios of 51.3, 18.3, 29.1, 0.5, and 0.8%, respectively (Figure a). The high-resolution XPS spectrum for Ti 2p has two peaks at 464.37 and 470.11 eV, corresponding to Ti 2p 3/2 and Ti 2p 1/2 , implying the existence of Ti 4+ in the titanium-oxo cluster (Figure b) . Furthermore, Zr 3d contains peak binding energies of 188.35 and 190.74 eV, demonstrating the presence of Zr 3d 5/2 and Zr 3d 3/2 , respectively (Figure c).…”

Section: Resultsmentioning

confidence: 97%

“…The high-resolution XPS spectrum for Ti 2p has two peaks at 464.37 and 470.11 eV, corresponding to Ti 2p 3/2 and Ti 2p 1/2 , implying the existence of Ti 4+ in the titanium-oxo cluster (Figure 5b). 46 Furthermore, Zr 3d contains peak binding energies of 188. 35 and 190.74 eV, demonstrating the presence of Zr 3d 5/2 and Zr 3d 3/2 , respectively (Figure 5c).…”

Section: Acs Sustainablementioning

confidence: 99%

“…Recently, organic reactions such as nitration, alcohol oxidation, reductions of nitro compounds, and coupling reactions , have been reported in the presence of simulated sunlight. Recently, we have reported a new MOF-on-MOF double Z-scheme heterojunction for high-performance photocatalytic degradation . According to the latest findings, there is no report on the design and fabrication of dual Z-scheme heterojunction photocatalytic systems and the study of the photocatalytic properties in organic synthesis.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, we have reported a new MOF-on-MOF double Z-scheme heterojunction for high-performance photocatalytic degradation. 46 According to the latest findings, there is no report on the design and fabrication of dual Z-scheme heterojunction photocatalytic systems and the study of the photocatalytic properties in organic synthesis.…”

Section: ■ Introductionmentioning

confidence: 99%

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Nanoarchitecting a Dual Z-Scheme Zr-MOF/Ti-MOF/g-C₃N₄ Heterojunction for Boosting Gomberg–Buchmann–Hey Reactions under Visible Light Conditions

Sepehrmansourie

Alamgholiloo

Pesyan

et al. 2023

ACS Sustainable Chem. Eng.

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Combining more than two metal−organic frameworks (MOFs) with different structures is an intelligent strategy for the architecture of hybrid MOFs. Herein, well-organized UiO-66(Zr)-on-MIL-125(Ti)-NH 2 growth with g-C 3 N 4 nanosheets was developed for the Gomberg−Buchmann−Hey reaction under visible light irradiation (λ > 420 nm). First, UiO-66(Zr) micropores as host MOFs were fabricated by a solvothermal method. Subsequently, MIL-125(Ti)-NH 2 crystals and g-C 3 N 4 nanosheets were grown inside UiO-66(Zr) to obtain a new type of the dual Zscheme Zr-MOF/Ti-MOF/g-C 3 N 4 heterojunction photocatalyst. Under visible light irradiation, this dual Z-scheme heterojunction acts as a highly efficient photocatalyst for forming C−C bonds via diazonium salts, which can compete with the best photocatalyst systems. The findings indicated that the presence of Zr and Ti metals in MOF-on-MOF and g-C 3 N 4 nanosheets could significantly increase the separation of photogenerated electron−hole pairs and then enhance the photocatalytic performance. The present study not only provides new insights into the architecture of MOFs on other MOFs but also develops Z-scheme heterojunction materials for coupling reactions and other organic reactions under visible light irradiation.

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Novel Metal–Organic Framework Cocrystal Strategy for Significantly Enhancing Photocatalytic Performance

Liu,

Wang,

et al. 2023

Adv Funct Materials

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Owing to their high carrier recombination speed and low spectral utilization, it is difficult to further improve the performance of photocatalysts. In this study, a novel metal–organic framework (MOF) self‐assembled cocrystal material is developed. The guest molecule is inserted and self‐assembled with the existing MOF ligand to form an organic cocrystal. The highly ordered molecular arrangement and tight intermolecular distances between donor and acceptor molecules promote a strong π–π charge transfer interaction, facilitating the migration and separation of photogenerated charge carriers. In addition, efficient redshifts in the absorption wavelength enhance the response to visible light. Further, the unique porous structure of MOFs is beneficial for increasing the interfacial area of photocatalytic reactions, and metal ions can become the center of photogenerated carrier capture, effectively inhibiting carrier recombination. Consequently, the MOF cocrystal demonstrates remarkable efficiency in the degradation of pollutants in water, achieving a noteworthy removal efficiency of 95.31% within 15 min. Moreover, the photocatalyic reaction kinetics constant of the MOF cocrystal is 46.5 times higher, indicating the success of this new strategy in developing highly efficient photocatalytic systems.

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A MOF-on-MOF strategy to construct double Z-scheme heterojunction for high-performance photocatalytic degradation

Cited by 178 publications

References 68 publications

A convenient catalytic method for preparation of new tetrahydropyrido[2,3-d]pyrimidines via a cooperative vinylogous anomeric based oxidation

A convenient catalytic method for preparation of new tetrahydropyrido[2,3-d]pyrimidines via a cooperative vinylogous anomeric based oxidation

Nanoarchitecting a Dual Z-Scheme Zr-MOF/Ti-MOF/g-C₃N₄ Heterojunction for Boosting Gomberg–Buchmann–Hey Reactions under Visible Light Conditions

Novel Metal–Organic Framework Cocrystal Strategy for Significantly Enhancing Photocatalytic Performance

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A MOF-on-MOF strategy to construct double Z-scheme heterojunction for high-performance photocatalytic degradation

Cited by 178 publications

References 68 publications

A convenient catalytic method for preparation of new tetrahydropyrido[2,3-d]pyrimidines via a cooperative vinylogous anomeric based oxidation

A convenient catalytic method for preparation of new tetrahydropyrido[2,3-d]pyrimidines via a cooperative vinylogous anomeric based oxidation

Nanoarchitecting a Dual Z-Scheme Zr-MOF/Ti-MOF/g-C3N4 Heterojunction for Boosting Gomberg–Buchmann–Hey Reactions under Visible Light Conditions

Novel Metal–Organic Framework Cocrystal Strategy for Significantly Enhancing Photocatalytic Performance

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Nanoarchitecting a Dual Z-Scheme Zr-MOF/Ti-MOF/g-C₃N₄ Heterojunction for Boosting Gomberg–Buchmann–Hey Reactions under Visible Light Conditions