Design and syntheses of MOF/COF hybrid materials via postsynthetic covalent modification: An efficient strategy to boost the visible-light-driven photocatalytic performance

Li, Fēi; Wang, Dengke; Xing, Qiu‐Ju; Zhou, Gang; Liu, Shanshan; Li, Yan; Zheng, Ling‐Ling; Ye, Peng; Zou, Jian‐Ping

doi:10.1016/j.apcatb.2018.10.043

Cited by 294 publications

(140 citation statements)

References 36 publications

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“…The obtained sample shows XRD patterns and FTIR spectra similar to those reported previously, suggesting that CTF-1 with high quality has been obtained (Figs. S1 and S2 online) [28,32]. CdS-CTF-1 nanocomposites were prepared via a solution impregnation method combined by a photo-deposition approach (Scheme 1).…”

Section: Resultsmentioning

confidence: 99%

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Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light

et al. 2020

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Section: Resultsmentioning

confidence: 99%

“…Previous studies have revealed that the p-stacked structure of COFs provides them with defined pathways for charge carrier transport [26][27][28]. This, in combination with the large surface area, adjustable porosity and tailorable chemistry, has enabled COFs to show a variety of potential applications.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light

et al. 2020

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“…MOFs photo-electronic properties can be improved by the modification of organic ligands. This can be carried out either during synthesis in-situ or following a post-synthetic approach [12,242]. Actually, electron-donating/withdrawing features of substituting groups influence the energies levels of both valence and conduction bands and, consequently, optical features as well as redox potentials.…”

Section: Ligand Functionalizationmentioning

confidence: 99%

“…This strategy was successfully applied to NH 2 -MIL-125(Ti) or NH 2 -UiO-66(Zr) systems, which were modified with triazine-based frameworks (B-CTF-1). Compared to bare MOFs and even physical mixtures of MOFs and COFs, obtained MOF/COF hybrid materials showed higher stability, as well as hydrogen production rate, due to the presence of amide bonds between B-CTF-1 and MOFs, ensuring wide absorption range as well as long-lived photogenerated charge carriers [225,242], as shown in Figure 13. The coating of NH 2 -MIL-125 with shell via a covalent bond linkage modifies the intrinsic electronic properties and reduces the recombination rate of photogenerated electron-hole pairs, resulting in excellent performances.…”

Section: Ligand Functionalizationmentioning

confidence: 99%

Photosensitive Hybrid Nanostructured Materials: The Big Challenges for Sunlight Capture

2020

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Solar radiation is becoming increasingly appreciated because of its influence on living matter and the feasibility of its application for a variety of purposes. It is an available and everlasting natural source of energy, rapidly gaining ground as a supplement and alternative to the nonrenewable energy feedstock. Actually, an increasing interest is involved in the development of efficient materials as the core of photocatalytic and photothermal processes, allowing solar energy harvesting and conversion for many technological applications, including hydrogen production, CO2 reduction, pollutants degradation, as well as organic syntheses. Particularly, photosensitive nanostructured hybrid materials synthesized coupling inorganic semiconductors with organic compounds, and polymers or carbon-based materials are attracting ever-growing research attention since their peculiar properties overcome several limitations of photocatalytic semiconductors through different approaches, including dye or charge transfer complex sensitization and heterostructures formation. The aim of this review was to describe the most promising recent advances in the field of hybrid nanostructured materials for sunlight capture and solar energy exploitation by photocatalytic processes. Beside diverse materials based on metal oxide semiconductors, emerging photoactive systems, such as metal-organic frameworks (MOFs) and hybrid perovskites, were discussed. Finally, future research opportunities and challenges associated with the design and development of highly efficient and cost-effective photosensitive nanomaterials for technological claims were outlined.

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“…Covalent organic frameworks (COFs), with high stability, large series of components, easy synthesis, modification, adjustable amplitude, etc., have emerged as a promising material class for the photoreduction of CO 2 . There have been many reports on the use of COFs as photocatalysts .…”

Section: Introductionmentioning

confidence: 99%

Improved Photoreduction of CO₂ with Water by Tuning the Valence Band of Covalent Organic Frameworks

et al. 2020

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Porous covalent organic frameworks (COFs), as an emerging material, have the characteristics of high stability, large series of components, easy synthesis, modification, and adjustable amplitude. They have the potential to become good catalysts. Bromine, as a halogen, has attracted intensive interest for the modification of photocatalysts for photocatalytic reactions. It is feasible to enhance the activity and selectivity of the material by facile functionalization of the reticular parent structure′s electron‐withdrawing groups. In addition, the conjugation effect of bromine, further delocalizing the electrons of the COF, is beneficial to the progress of many photocatalytic reactions. Reports on the modification of COFs by bromine functional groups to improve the catalytic performance have not been found so far. Here, TAPP [5,10,15,20‐tetrakis(4‐aminophenyl)porphyrin] and 2,5‐dibromo‐1,4‐benzenedialdehyde instead of terephthalaldehyde were chosen to synthesize a porphyrin‐based COF (TAPBB‐COF) by the solvothermal method. As expected, the valence band (VB) of TAPBB‐COF is thus adjusted to a more suitable position. Additionally, the CO production when using TAPBB‐COF under full‐wavelength light for 12 h was 295.2 μmol g−1, which was three times that of COF‐366, and the new material has good recycling stability and selectivity (95.6 %). Theoretical calculations indicate that the nitrogen of the porphyrin ring and the Schiff base, and the bromine in TAPBB‐COF contribute greatly to the activation of H2O and the conversion of CO2 in the photoreaction.

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Design and syntheses of MOF/COF hybrid materials via postsynthetic covalent modification: An efficient strategy to boost the visible-light-driven photocatalytic performance

Cited by 294 publications

References 36 publications

Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light

Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light

Photosensitive Hybrid Nanostructured Materials: The Big Challenges for Sunlight Capture

Improved Photoreduction of CO₂ with Water by Tuning the Valence Band of Covalent Organic Frameworks

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Design and syntheses of MOF/COF hybrid materials via postsynthetic covalent modification: An efficient strategy to boost the visible-light-driven photocatalytic performance

Cited by 294 publications

References 36 publications

Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light

Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light

Photosensitive Hybrid Nanostructured Materials: The Big Challenges for Sunlight Capture

Improved Photoreduction of CO2 with Water by Tuning the Valence Band of Covalent Organic Frameworks

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Improved Photoreduction of CO₂ with Water by Tuning the Valence Band of Covalent Organic Frameworks