Photothermal-enhanced catalysis in core–shell plasmonic hierarchical Cu<sub>7</sub>S<sub>4</sub>microsphere@zeolitic imidazole framework-8

Wang, Feifan; Huang, Yanjie; Chai, Zhigang; Zeng, Min; Li, Qi; Wang, Yuan; Xu, Dongsheng

doi:10.1039/c6sc03239g

Cited by 104 publications

(84 citation statements)

References 50 publications

(33 reference statements)

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“…Under UV light irradiation, photothermal catalysis was not obviously enhanced, which implies that there is a conflict between the photogenerated charges and photothermal conversion. Xu et al [120] focused on the highly efficient photothermal conversion based on plasmons. The better photothermal conversion properties led to a more efficient photothermal catalyst for CO 2 reduction with H 2 .…”

Section: Photothermal Catalysismentioning

confidence: 99%

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

Wang

Sang

et al. 2017

Advanced Energy Materials

258

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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Section: Photothermal Catalysismentioning

confidence: 99%

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

Wang

Sang

et al. 2017

Advanced Energy Materials

258

116

View full text Add to dashboard Cite

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“…It is demonstrated that the photothermal effect played a positive role for the Pdcatalyzed organic hydrogena tion reaction and the hotelectron effect played a negative role, which coincided with the ultrafast absorption spectros copy characterizations for different plasmonic modes of Au nanorods. Along with previous works, [33,88,90] the feasibility of photothermal catalysis has been verified to maximize the catalytic activity by delicate materials design, which should be exerted appropriately into the establishment of efficient solar energy conversion system. From another openminded viewpoint, this strategy provides an alternative way to realize the conventional thermal catalysis in the photothermal path way, e.g., photothermal CO 2 hydrogenation, methane activa tion, water-gas shift reaction, Fischer-Tropsch synthesis, etc.…”

Section: Discussionmentioning

confidence: 99%

“…They proposed a mecha nism that the hot holes generated by the plasmonic Cu 7 S 4 nanocrystals injected into the Pd nanoparticles and rendered these reactions being occurred. In the recent work by Xu and coworkers, [88] the photothermalenhanced catalysis was achieved in the core-shell plasmonic hierarchical Cu 7 S 4 micro sphere@ZIF8 (Cu 7 S 4 @ZIF8) structures (Figure 11a-d). The laser experiments showed that the plasmoninduced photo thermal effect is responsible for the improved catalytic activity.…”

Section: Organic Photosynthesis and Other Photocatalytic Reactionsmentioning

confidence: 99%

Recent Progress in Semiconductor‐Based Nanocomposite Photocatalysts for Solar‐to‐Chemical Energy Conversion

Wang

2017

Advanced Energy Materials

Self Cite

225

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Photocatalysis, which can directly convert solar energy into chemical energy and simultaneously accomplish solar energy conversion and storage objectives, is regarded as one of the most promising strategies to address the energy supply and environmental degradation issues. In recent decades, great efforts and encouraging achievements are performed in the field of semiconductor photocatalysts. Herein, this progress report summarizes the recent investigations and focuses on the advanced semiconductor‐based nanocomposite materials and structures and the novel mechanisms for the photocatalytic solar‐to‐chemical energy conversion. It begins with discussing basic principles for the establishment of an efficient photocatalysis system and illustrating recent studies on improving the elementary processes of photocatalysis, i.e., photophysics and surface/interface chemistry. Then, it demonstrates how the fundamental principles are utilized to enhance the important energy‐conversion‐related reactions, such as light‐driven water splitting, CO2 reduction, nitrogen fixation, organic photosynthesis, etc. Finally, the report concludes the topic on semiconductor‐based nanocomposite photocatalysis along with identifying crucial issues in fundamental studies, challenges in large‐scale industrializations, and perspectives in related research fields.

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“…This can be avoided by the encapsulationo fP dN Cs inside porousm aterials as shells with small pore openings, which also enable the size-selective hydrogenation of different substrates. [74] Wang et al [76] reported ac ore-shell Cu 7 S 4 @ZIF-8n anostructure and demonstrated that the core and shell sections of the composite were endued with thermo-and photocatalytic functionality,r espectively.T he hierarchicalC u 7 S 4 hollow microsphere core acts as ap lasmonic nanoheater with at hermophotocatalytic transductione fficiency of 31.1 %a nd the surface temperature increasedt o9 4 8Cu nder the irradiation of a 1450 nm laser.T he localized heat converted from light energy Figure 12. In ar ecent work, ar epresentative MOF,{ Zn(2-methylimidazole) 2 }( ZIF-8), was grown on Pd NCs to obtain Pd NCs@ZIF-8 with ac ore-shell structure ( Figure 12).…”

Section: Value-added Organic Compoundsmentioning

confidence: 99%

Thermo‐Photocatalysis: Environmental and Energy Applications

et al. 2019

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Catalysis is an integral part of a majority of chemical operations focused on the generation of value‐added chemicals or fuels. Similarly, the extensive use of fossil‐derived fuels and chemicals has led to deterioration of the environment. Catalysis currently plays a key role in mitigating such effects. Thermal catalysis and photocatalysis are two well‐known catalytic approaches that were applied in both energy and environmental fields. Thermo‐photocatalysis can be understood as a synergistic effect of the two catalytic processes with key importance in the use of solar energy as thermal and light source. This Review provides an update on relevant contributions about thermo‐photocatalytic systems for environmental and energy applications. The reported activity data are compared with the conventional photocatalytic approach and the base of the photothermal effect is analyzed. Some of the systems based on the positive aspects of thermo‐ and photocatalysis could be the answer to the energy and environmental crisis when taking into account the outstanding results with regard to chemical efficiency and energy saving.

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Photothermal-enhanced catalysis in core–shell plasmonic hierarchical Cu₇S₄microsphere@zeolitic imidazole framework-8

Abstract: A strategy to improve reaction activity via the photothermal effect of plasmonic semiconductor nanomaterials is demonstrated in a core–shell structured catalyst.

Cited by 104 publications

References 50 publications

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

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

Recent Progress in Semiconductor‐Based Nanocomposite Photocatalysts for Solar‐to‐Chemical Energy Conversion

Thermo‐Photocatalysis: Environmental and Energy Applications

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Photothermal-enhanced catalysis in core–shell plasmonic hierarchical Cu7S4microsphere@zeolitic imidazole framework-8

Abstract: A strategy to improve reaction activity via the photothermal effect of plasmonic semiconductor nanomaterials is demonstrated in a core–shell structured catalyst.

Cited by 104 publications

References 50 publications

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

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

Recent Progress in Semiconductor‐Based Nanocomposite Photocatalysts for Solar‐to‐Chemical Energy Conversion

Thermo‐Photocatalysis: Environmental and Energy Applications

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Photothermal-enhanced catalysis in core–shell plasmonic hierarchical Cu₇S₄microsphere@zeolitic imidazole framework-8