Copper‐Based Coordination Polymer Nanostructure for Visible Light Photocatalysis

Jiang, Haiying; Zhou, Peng; Wang, Yuanyuan; Duan, Ran; Chen, Chuncheng; Song, Wenjing; Zhao, Jincai

doi:10.1002/adma.201603556

Cited by 103 publications

(95 citation statements)

References 47 publications

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“…The elements present in the CP are Ag, O, and C. The high resolution XPS spectra of Ag(3d) are shown inFigure 2b, and show the binding energies of 3d5/2 and Ag 3d3/2 states in these samples are 367.1 eV and 373.1 eV respectively, which is in good agreement with the literature values for Ag in the +1 oxidation sate 17. The presence of the organic spacer in the sample was confirmed by binding energies of C-C (283.5 eV), C-O (285.0 eV), and C=C/C=O (286.9 eV) groups in the C 1s(Figure 2c) 34,35.…”

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confidence: 90%

Photoactive Ag(I)-Based Coordination Polymer as a Potential Semiconductor for Photocatalytic Water Splitting and Environmental Remediation: Experimental and Theoretical Approach

et al. 2019

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Metal organic frameworks (MOFs) or Metal coordination polymers (CPs) with controlled structure on the micro/nano-scale have attracted intense interest for potential applications in a wide variety of fields, such as energy storage and conversion, chemical and biological sensing, and catalysis. Here, we report a new class of photocatalytic material, Ag(I) based nano-micro structured coordination polymer (Ag(I)-CP), which offer performance at a level competitive with known semiconductors in photocatalytic water oxidation and oxidation of organic compounds, such as dye/ organic pollutants present in contaminated water. The coordination polymer was synthesized by a wet-chemical route and has been characterized using powder X-ray diffraction, X-ray photoelectron spectroscopy and electron microscopy. The 2 Ag(I)-CP has notable semiconducting characteristics and charge transfer ability due to ligand centered charge transfer (LCCT) in combination with metal to ligand charge transfer MLCT (Ag-O cluster to ligand centre) as established from experimental absorption, luminescence and photoelectrochemical measurements alongside DFT calculations. Notably, Ag(I)-CP exhibits a highly reactive valance band potential +3.40 V vs NHE, composed of hybridized state of O 2p and C 2p through the organic linker and Ag 4d, this acts as an active center for the generation of reactive oxygen species (ROS) i.e., hydroxyl radical and h + under photocatalytic conditions. Consequently, the photogenerated species facilitate effective oxidations of water and organic contaminants such as tartrazine, rhodamine B and 2, 4-dichlorophenol under UV light irradiation. Furthermore, our results suggest that the Ag(I)-CP could be used as a promising material for the development of heterostructure for variety of photo-assisted-redox catalysis.

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confidence: 90%

Photoactive Ag(I)-Based Coordination Polymer as a Potential Semiconductor for Photocatalytic Water Splitting and Environmental Remediation: Experimental and Theoretical Approach

et al. 2019

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“…Intrinsic semiconductors with proper band structures have been used for visible-light-driven photocatalysis without adding defects using both inorganic semiconductors [83] and organic materials. [51] Recently, Song et al obtained copper phenylacetylide (PhC 2 Cu) nanobelts, [84] which has a band-like electronic structure with an optical band gap of 2.3 eV, allowing for visible light absorption. During photocatalysis, the valence state change between Cu − and Cu 2 − plays an important role, not only for the formation of hydroxide radicals but also for the material stability.…”

Section: Band Structure Engineering Through Crystal Structure Modificmentioning

confidence: 99%

Full‐Spectrum Solar‐Light‐Activated Photocatalysts for Light–Chemical Energy Conversion

Wang

Sang

et al. 2017

Advanced Energy Materials

257

116

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photocatalysis based on semiconductors represents another route for light energy conversion. This route endows the direct conversion of light energy into oxidation and reduction energy via charge carriers (electrons and holes) generated in the semiconductors. For instance, the photocatalytic degradation of harmful and toxic organic substances, dyes, and chemicals has been considered to be a suitable candidate for removing organic pollution from water, [5][6][7][8] where photooxidation dominates the degradation of the organic molecules. The full process of photocatalytic water splitting into H 2 and O 2 is believed to be promising for generating renewable and green energy, [9,10] and the process includes the photoreduction and photooxidation of water, respectively. The photocatalytic reduction of CO 2 can convert solar energy into chemical energy, stored as CH 4 , CO, CH 3 OH, etc. [11][12][13] These processes can help reduce the pressure of the global warming crisis and supply usable renewable energy. Due to the precise control of photocatalytic reduction and oxidation, photocatalytic molecular synthesis has also attracted much interest, which provides a sustainable pathway for green synthesis. [14][15][16] For an efficient photocatalytic process, solar light harvesting and a redox process based on photogenerated charge carriers are essential steps. Solar light harvesting consists of light absorption and charge carrier excitation steps, which can be expressed as the light utilization efficiency. The efficiency determines the total energy converted from solar light and is mostly determined by the band structure of the semiconductor applied to the photocatalytic process.The photocatalytic process has been extensively studied by examining the response of photocatalysts to UV light, due to its relatively high photonic energy. As is well known, UV light energy amounts to no more than 5% of the solar light energy. Visible light and near-infrared (NIR) light contain approximately 90% of the solar light energy. To utilize solar light in order to solve the environmental and energy crisis, visible light and NIR-light-activated photocatalysts are essential. For decades, many studies have focused on expanding the range over which a photocatalyst can utilize the solar light spectrum. In addition, there are several good reviews summarizing recent progress on UV-vis-light-activated photocatalysts, as well as strategies to improve the photocatalytic efficiency. [17][18][19][20] As is well known, the photonic energy of visible light is low, and that of NIR light is even lower. Photoinduced redox requires an initial amount of energy to activate the process; however, NIR photonic energy may be too low to realize photoinduced The realization of light-chemical energy conversion using solar light is an ideal goal in renewable energy studies. Many reports are concerned with extracting energy from solar light and the use/storage of the converted energy. Due to the progress in solar light absorption with various photocatalysts, the vari...

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“…Cu I and acetylide can form μ , η ‐coordination bonds leading to charge transfer between them. Much effort has been conducted to prepare Cu I ‐alkynyl nanoclusters with photoluminescent properties that have found various applications in organic optoelectronics, [8] bioimaging, [9] and catalysis [10] . The Cu I ‐alkynyl nanoclusters were prepared by the reaction of alkyl acetylide or aromatic acetylide with large substituent groups.…”

Section: Introductionmentioning

confidence: 99%

Mechanistic Investigation on Copper–Arylacetylide Polymerization and Sensing Applications

Liang

Chang

et al. 2021

Angew Chem Int Ed

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Exploration of new polymerization reactions is very intriguing in fundamental and practical research, whichw ill advance reaction theories and produce various functional materials.H erein, we report an ew polymerization method based on the reaction of Cu I and arylacetylide,which generates linear polymers with high molecular weight and low polydispersity index of molecular weight. The Cu-arylacetylide polymerization exhibits different characteristics with traditional polymerizations such as mild reaction temperature,a ir atmosphere reaction, high molecular weight, fast polymerization rate,and imprecise molar ratio between monomers.The bond formation path and activation energy of each step was investigated by density functional theory calculations to understand the reaction mechanism. The poly(Cu-arylacetylide)s exhibit strong fluorescence emission and inherent semiconductive properties,w hich have been used to fabricate an electronic device for streptavidin sensing.

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Copper‐Based Coordination Polymer Nanostructure for Visible Light Photocatalysis

Cited by 103 publications

References 47 publications

Photoactive Ag(I)-Based Coordination Polymer as a Potential Semiconductor for Photocatalytic Water Splitting and Environmental Remediation: Experimental and Theoretical Approach

Photoactive Ag(I)-Based Coordination Polymer as a Potential Semiconductor for Photocatalytic Water Splitting and Environmental Remediation: Experimental and Theoretical Approach

Full‐Spectrum Solar‐Light‐Activated Photocatalysts for Light–Chemical Energy Conversion

Mechanistic Investigation on Copper–Arylacetylide Polymerization and Sensing Applications

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