Dissecting the interfaces of MOF-coated CdS on synergized charge transfer for enhanced photocatalytic CO2 reduction

Mu, Qiaoqiao; Su, Yanhui; Wei, Zhihe; Sun, Hao; Lian, Yuebin; Dong, Yuyi; Qi, Pengwei; Deng, Zhao; Peng, Yang

doi:10.1016/j.jcat.2021.03.018

Cited by 70 publications

(33 citation statements)

References 83 publications

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“…45 As shown in The photoluminescence emission is produced by the recombination of photoinduced electron-hole pairs, so photoluminescence analysis can be employed to prove the separation efficiency of the charge carriers in the composite. 48 As shown in Fig. 8a, MOF-1 displayed strong photoluminescence emission when excited at 290 nm, while the emission intensity of 1/GO/Fe 3 O 4 decreased significantly, which confirmed a decreased recombination of the photogenerated carriers in 1/ GO/Fe 3 O 4 .…”

Section: Photocatalysis Mechanism Discussionmentioning

confidence: 58%

“…S9a and S9b †). 48,56 The E Fermi and E VBM values in electron volts can be converted into electrochemical energy potentials in volts according to the reference standard in which 0 V versus normal hydrogen electrode (vs. NHE) equaled −4.44 eV vs. vacuum. Therefore, the E Fermi and E VBM of MOF-1 were determined to be −0.01 V and 2.13 V (vs. NHE), respectively.…”

Section: Photocatalysis Mechanism Discussionmentioning

confidence: 99%

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Facile and efficient photocatalyst for degradation of chlortetracycline promoted by H₂O₂

Bai

Han

et al. 2022

Inorg. Chem. Front.

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Section: Photocatalysis Mechanism Discussionmentioning

confidence: 58%

Section: Photocatalysis Mechanism Discussionmentioning

confidence: 99%

Facile and efficient photocatalyst for degradation of chlortetracycline promoted by H₂O₂

Bai

Han

et al. 2022

Inorg. Chem. Front.

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“…[ 1 ] However, it is a daunting task for the effective integration of CO 2 reduction reaction (CO 2 RR) and H 2 O oxidation half‐reactions in one catalytic system, for which the development of photocatalysts is the most crucial factor. [ 2 ] At the initial stage, many inorganic semiconductors, such as TiO 2 , [ 3 ] CdS, [ 4 ] ZnGa 2 O 4 , [ 5 ] and Zn 2 GeO 4 [ 6 ] et al., were used to achieve the overall reaction. These inorganic materials usually suffer from low photocatalytic efficiency, unsatisfactory selectivity, and limited visible‐light harvesting, [ 7 ] therefore energizing to explore new photocatalytic systems.…”

Section: Introductionmentioning

confidence: 99%

Covalent Microporous Polymer Nanosheets for Efficient Photocatalytic CO₂ Conversion with H₂O

Zhi

Zhou

Liu

et al. 2022

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most promising technologies to solve these problems. [1] However, it is a daunting task for the effective integration of CO 2 reduction reaction (CO 2 RR) and H 2 O oxidation half-reactions in one catalytic system, for which the development of photo catalysts is the most crucial factor. [2] At the initial stage, many inorganic semiconductors, such as TiO 2 , [3] CdS, [4] ZnGa 2 O 4 , [5] and Zn 2 GeO 4 [6] et al., were used to achieve the overall reaction. These inorganic materials usually suffer from low photocatalytic efficiency, unsatisfactory selectivity, and limited visible-light harvesting, [7] therefore energizing to explore new photocatalytic systems. Recently, organic polymer materials including covalent organic frameworks (COFs) [8] and covalent microporous polymers (CMPs) [9] have been suggested as promising photocatalysts owing to their irreplaceable advantages including facile structural controllability, high CO 2 adsorption capacity, excellent structural stability, and wide spectral response range. [10--12] Nevertheless, sacrificial reagents, e.g. triethanolamine, triethylamine, and triisopropanolamine, are still necessary so far to reduce CO 2 for most of organic polymer photocatalytic systems. [13][14][15] Only a few examples among all the organic photocatalysts, such as 5T-15CN/BVNS by Jing's group, [16] sh-COP-P by Zhang's group, [17] TAPBB-COF by Su's group, [18] and TTCOF-Zn by Lan's group, [19] can complete the overall CO 2 reduction reaction, but usually with an unsatisfactory CO 2 reduction efficiency under visible light irradiation. As a result, it is still demanding to develop new high-performance organic polymer-based photocatalysts for CO 2 conversion with H 2 O as an electron donor.Herein, an imide-based 2D covalent organic polymer CoP-cPDA-CMP has been fabricated by the polyimidization reaction of tetraaminophthalocyanatocobalt(II) (CoTAPc) and 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA), which was exfoliated into nanosheets CoPcPDA-CMP NSs used for effective visible-light-driven CO 2 reduction. Our strategy is based on the following considerations: 1) both kinds of chromophores [cobalt phthalocyanine (CoPc) and 3,4,9,10-perylenetetracarboxylic diimide (PDI) moieties] in CoPcPDA-CMP NSs exhibit excellent visible-light-harvesting capacity, [20,21] leading to a wide spectral response range for CoPcPDA-CMP NSs.2) CoPc has a high LUMO energy to drive photoexcited electrons to reduce CO 2 , [22] while PDI and its derivatives with low It is still a challenging target to achieve photocatalytic CO 2 conversion to valuable chemicals with H 2 O as an electron donor. Herein, 2D imide-based covalent organic polymer nanosheets (CoPcPDA-CMP NSs), which integrate cobalt phthalocyanine (CoPc) moiety for reduction half-reaction and 3,4,9,10-perylenetetracarboxylic diimide moiety for oxidation half-reaction, are constructed as a Z-scheme artificial photosynthesis system to complete the overall CO 2 reduction reaction. Owing to the outstanding light absorption capacity, charge separation effic...

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“…The Cu 3 (BTC) 2 MOF@TiO 2 coreshell was used as a proof of concept to demonstrate the effects of semiconductor and MOF. Ultrafast spectroscopy indicated that the photo-generated charge can effectively transfer from photoexcited inorganic TiO 2 to Cu-MOF, thus providing longlifetime electrons for CO 2 reduction adsorbed in the nonporous MOF core [53]. Recently, TiO 2 @MOF (MIL-101) was prepared through accurately filling MOF with TiO 2 nanoparticles and exhibited significant performance improvements in CO 2 photoreduction (Figs.…”

Section: Semiconductor@mofsmentioning

confidence: 99%

Nanostructure@metal-organic frameworks (MOFs) for catalytic carbon dioxide (CO2) conversion in photocatalysis, electrocatalysis, and thermal catalysis

Wang

2021

Nano Res.

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The catalytic conversion of carbon dioxide (CO 2 ) into high value-added chemicals is of great significance to address the pressing carbon cycle issues. Reticular chemistry of metal-organic frameworks (MOFs)-based materials exhibits great potential and effectiveness to face CO 2 challenge from capture to conversion. To date, the integrated nanocomposites of nanostructure and MOF have emerged as a powerful heterogeneous catalysts featured with multifold advantages including synergistic effects between the two interfaces, confinement effect of meso-and micropores, tandem reaction triggered by multiple active sites, high stability and dispersion, and so on. Given burgeoning carbon cycle and nanostructure@MOFs, this review highlights some of important advancements to provide a full understanding on the synthesis and design of nanostructure@MOFs composites to facilitate carbon cycle through CO 2 photocatalytic, electrocatalytic, and thermal conversion. Afterward, the catalytic applications of some representative nanostructure@MOFs composites are categorized, in which the origin of activity or structure-activity relationship is summarized. Finally, the opportunities and challenges are proposed for inspiring the future development of nanostructure@MOFs composites for carbon cycle.

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Dissecting the interfaces of MOF-coated CdS on synergized charge transfer for enhanced photocatalytic CO2 reduction

Cited by 70 publications

References 83 publications

Facile and efficient photocatalyst for degradation of chlortetracycline promoted by H₂O₂

Facile and efficient photocatalyst for degradation of chlortetracycline promoted by H₂O₂

Covalent Microporous Polymer Nanosheets for Efficient Photocatalytic CO₂ Conversion with H₂O

Nanostructure@metal-organic frameworks (MOFs) for catalytic carbon dioxide (CO2) conversion in photocatalysis, electrocatalysis, and thermal catalysis

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Dissecting the interfaces of MOF-coated CdS on synergized charge transfer for enhanced photocatalytic CO2 reduction

Cited by 70 publications

References 83 publications

Facile and efficient photocatalyst for degradation of chlortetracycline promoted by H2O2

Facile and efficient photocatalyst for degradation of chlortetracycline promoted by H2O2

Covalent Microporous Polymer Nanosheets for Efficient Photocatalytic CO2 Conversion with H2O

Nanostructure@metal-organic frameworks (MOFs) for catalytic carbon dioxide (CO2) conversion in photocatalysis, electrocatalysis, and thermal catalysis

Contact Info

Product

Resources

About

Facile and efficient photocatalyst for degradation of chlortetracycline promoted by H₂O₂

Facile and efficient photocatalyst for degradation of chlortetracycline promoted by H₂O₂

Covalent Microporous Polymer Nanosheets for Efficient Photocatalytic CO₂ Conversion with H₂O