Facile sonochemical synthesis of CdS/COF heterostructured nanocomposites and their enhanced photocatalytic degradation of Bisphenol-A

Sun, Chen; Karuppasamy, Lakshmanan; Gurusamy, Lakshmanan; Yang, Hsin-Ju; Liu, Cheng-Hua; Dong, Jun; Wu, Jerry J.

doi:10.1016/j.seppur.2021.118873

Cited by 58 publications

(14 citation statements)

References 60 publications

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“…The VB and CB of ZnS were determined in this study to be 4.46 and 0.79 eV, respectively. Additionally, the valence band (VB) and conduction band (CB) positions of COF were +0.96 and −0.65 eV, respectively [55]. The CB of COF appeared to be more negative than ZnS; the VB of ZnS appeared to be more positive than COF.…”

Section: Mechanism Of Photocatalytic Hydrogen Evolutionmentioning

confidence: 98%

Photocatalytic Hydrogen Evolution from Water Splitting Using Core-Shell Structured Cu/ZnS/COF Composites

Wang

Yang

et al. 2021

Nanomaterials

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Hydrogen is considered to be a very efficient and clean fuel since it is a renewable and non-polluting gas with a high energy density; thus, it has drawn much attention as an alternative fuel, in order to alleviate the issue of global warming caused by the excess use of fossil fuels. In this work, a novel Cu/ZnS/COF composite photocatalyst with a core–shell structure was synthesized for photocatalytic hydrogen production via water splitting. The Cu/ZnS/COF microspheres formed by Cu/ZnS crystal aggregation were covered by a microporous thin-film COF with a porous network structure, where COF was also modified by the dual-effective redox sites of C=O and N=N. The photocatalytic hydrogen production results showed that the hydrogen production rate reached 278.4 µmol g−1 h−1, which may be attributed to its special structure, which has a large number of active sites, a more negative conduction band than the reduction of H+ to H2, and the ability to inhibit the recombination of electron–hole pairs. Finally, a possible mechanism was proposed to effectively explain the improved photocatalytic performance of the photocatalytic system. The present work provides a new concept, in order to construct a highly efficient hydrogen production catalyst and broaden the applications of ZnS-based materials.

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Section: Mechanism Of Photocatalytic Hydrogen Evolutionmentioning

confidence: 98%

Photocatalytic Hydrogen Evolution from Water Splitting Using Core-Shell Structured Cu/ZnS/COF Composites

Wang

Yang

et al. 2021

Nanomaterials

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“…Among the fabricated NCs, the NC with 0.5 wt% of the framework shows the best photocatalytic performance. 100…”

Section: Synthesis Methods For Cofsmentioning

confidence: 99%

“…Among the fabricated NCs, the NC with 0.5 wt% of the framework shows the best photocatalytic performance. 100 Three approaches exist for CTF fabrication: cyclotrimerization of nitrile groups by zinc(II) chloride at 400 1C, a polycondensation method (at low temperature) using the reaction of amidines and aldehydes, and a common Schiff base condensation reaction with a precursor comprising triazine. [101][102][103] For an improvement in the optoelectronic and electronic features of these COFs, perylene groups can be utilized for CTF fabrication.…”

Section: Other Approachesmentioning

confidence: 99%

Design, synthesis, and application of covalent organic frameworks as catalysts

Nikkhoo¹,

Mallakpour

Hussain

2023

New J. Chem.

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“…Besides, the shearing force provided by ultrasounds is helpful for regulating the overall size of the composites. Sun et al added different amounts of COFs monomers to the reaction solution to prepare CdS/COFs by the ultrasonic method, [44] forming nanospheres with uniform sizes and relatively dense spatial composition. As expected, the diameter of the nanospheres gradually decreases as the COFs content increases, ranging from 45 nm to 20 nm.…”

Section: Sonochemical Methodsmentioning

confidence: 99%

Covalent Organic Frameworks Based Inorganic/Organic Composite Materials for Photocatalytic Applications

Xiao

Wei

2022

ChemNanoMat

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As a rising class of functional porous organic materials with tunable pore structures and flexible chemical environments, covalent organic frameworks (COFs) have demonstrated their tremendous potential in numerous applications, such as adsorption, water purification, heterogeneous catalysis, and organic electronics. In the field of photocatalytic applications, the association of emerging COFs with traditional inorganic catalysts can effectively combine the functionality of COFs with the stability of their inorganic counterparts to construct efficient and stable composite photocatalysts. A rapidly growing new field has been established regarding COFs-based inorganic/organic hybrid photocatalysts, which call for a timely review to summarize recent developments. In this contribution, we revisit this promising composite photocatalysts by emphasizing some recent breakthroughs in synthetic strategies and the enhanced performance in various photocatalytic applications. Simultaneously, the mechanisms of performance improvement are elucidated by analyzing the interactions between the inorganic and organic counterparts. We hope general tactics could be inspired for directing open considerations for the future design of photocatalysts and their practical implementations.

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Facile sonochemical synthesis of CdS/COF heterostructured nanocomposites and their enhanced photocatalytic degradation of Bisphenol-A

Cited by 58 publications

References 60 publications

Photocatalytic Hydrogen Evolution from Water Splitting Using Core-Shell Structured Cu/ZnS/COF Composites

Photocatalytic Hydrogen Evolution from Water Splitting Using Core-Shell Structured Cu/ZnS/COF Composites

Design, synthesis, and application of covalent organic frameworks as catalysts

Covalent Organic Frameworks Based Inorganic/Organic Composite Materials for Photocatalytic Applications

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