Assembly of TiO2‐on‐Cu2O Nanocubes with Narrow‐Band Cu2O‐Induced Visible‐Light‐Enhanced Photocatalytic Activity

Liu, Jiali; Wen, Ming; Chen, Hanxing; Li, Jing; Wu, Qingsheng

doi:10.1002/cplu.201300278

Cited by 14 publications

(4 citation statements)

References 27 publications

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“…In addition to the semiconductor-cocatalyst and semiconductor-carbon heterojunctions, heterojunctions consisting of two different semiconductors have been effectively used to improve the photostability of semiconductors and boost their overall photocatalytic activity. Typically, the type II heterojunctions, such as Cu 2 O/TiO 2 − and CdS/TiO 2 , − and all-solid-state Z-scheme systems − have been extensively and rationally designed to decrease photocorrosion of unstable Cu 2 O and CdS. Finally, preparation of protective overlayers, such as TiO 2 , − SrTiO 3 , g-C 3 N 4 , − Co–Pi, ,− CoO x , − Al 2 O 3 , Ga 2 O 3 , and SiO 2 , − on semiconductors can “passivate” or “catalyze” their surface to reduce charge recombination or enhance charge transfer, respectively, thus effectively boosting the overall photocatalytic activity .…”

Section: Fundamentals Of Heterogeneous Co2 Photoreductionmentioning

confidence: 99%

Cocatalysts for Selective Photoreduction of CO₂into Solar Fuels

et al. 2019

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Photoreduction of CO2 into sustainable and green solar fuels is generally believed to be an appealing solution to simultaneously overcome both environmental problems and energy crisis. The low selectivity of challenging multi-electron CO2 photoreduction reactions makes it one of the holy grails in heterogeneous photocatalysis. This Review highlights the important roles of cocatalysts in selective photocatalytic CO2 reduction into solar fuels using semiconductor catalysts. A special emphasis in this review is placed on the key role, design considerations and modification strategies of cocatalysts for CO2 photoreduction. Various cocatalysts, such as the biomimetic, metal-based, metal-free, and multifunctional ones, and their selectivity for CO2 photoreduction are summarized and discussed, along with the recent advances in this area. This Review provides useful information for the design of highly selective cocatalysts for photo(electro)reduction and electroreduction of CO2 and complements the existing reviews on various semiconductor photocatalysts.

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Section: Fundamentals Of Heterogeneous Co2 Photoreductionmentioning

confidence: 99%

Cocatalysts for Selective Photoreduction of CO₂into Solar Fuels

et al. 2019

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“…World energy demand is expected to increase at a rate of 2.2% per year from 2012 to 2035, with demand in buildings and industrial sectors accounting for 90% of this growth [1]. In order to mitigate climate change [2], both European [3] and UK [4] national policies suggest that efforts should be made to ensure sustainable development in future. One effective dispatch strategy of CES is formulated as a Mixed Integer Linear Programming (MILP) function to minimise the amount and price of energy absorbed from the grid.…”

Section: Introductionmentioning

confidence: 99%

Techno-enviro-economic assessment of household and community energy storage in the UK

Dong

Kremers

Brucoli

et al. 2020

Energy Conversion and Management

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Residential electricity demand is expected to rise in the next few decades due to the electrification of heating and transport. Both European and UK national policies suggest that efforts should be made to reduce carbon emissions and increase the share of renewable energy, an important element of which is encouraging generation, typically PV, in partnership with energy storage systems in the residential sector. The scale of the energy storage system is important, i.e. in individual properties or as a community resource. Many advantages of community energy storage (CES) over household energy storage (HES) have been identified, but the design and operation of CES has received significantly less attention. Most existing research has analysed CES at community level only, but the performance and impact on individual households has yet to be fully explored. In this study an agent-based model is proposed to investigate and analyse CES based on a range of criteria. Results indicate that both HES and CES can significantly reduce the grid peak power import and export, improve the community self-consumption rate (SCR) and self-sufficiency rate (SSR), and contribute to much higher energy saving. Furthermore, optimising the CES capacity leads to more effective use of PV power and better demand localisation during high PV-generation periods. It is found that an important challenge for CES systems is to realise the value of the shared electricity equitably amongst the participants and potentially to seek other revenue streams.

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“…From the studies reported, n-type TiO 2 coupling with p-type Cu 2 O exhibits good prospects for photocatalytic applications under visible light. For example, it was used in different applications such as the removal of organic and inorganic pollutants [20,[25][26][27][28], CO 2 reduction [29,30], H 2 evolution [14,[31][32][33], polyester textiles [34], as well as for antibacterial activity [35,36].…”

Section: Introductionmentioning

confidence: 99%

Layered Nanocomposite 2D-TiO2 with Cu2O Nanoparticles as an Efficient Photocatalyst for 4-Chlorophenol Degradation and Hydrogen Evolution

et al. 2020

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New composites formed by layered hybrid TiO 2 (stearic acid) (LHTiO 2 ) and, Cu 2 O nanoparticles were studied as photocatalysts that extend the response range to light visible for the evolution of hydrogen and the degradation of 4-chlorophenol. The results revealed that LHTiO 2 /Cu 2 O exhibited a clearly improved photocatalytic degradation, about 5.6 times faster than pristine TiO 2 , and hydrogen evolution of about 2.7 times higher than the TiO 2 anatase. The enhanced photocatalytic activity can be assigned to the properties of the two-dimensional morphology, in sheets-like arrangement of LHTiO 2 , benefitting from the high exposure of surface, with more active sites available to improve matching with the surfaces of the Cu 2 O nanocrystals and significant reduction of migration distances of photogenerated carriers. In the photocatalytic degradation, a mechanism Z-scheme is supported, and in the photocatalytic evolution of hydrogen a mechanism type II band alignment is indicated. Photocatalytic reuse tests showed that stability and catalytic activity of LHTiO 2 /Cu 2 O were maintained for three cycles. Photoelectrochemical evaluation were performed through measurements of the photocurrent response and electrochemical impedance.

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Assembly of TiO₂‐on‐Cu₂O Nanocubes with Narrow‐Band Cu₂O‐Induced Visible‐Light‐Enhanced Photocatalytic Activity

Cited by 14 publications

References 27 publications

Cocatalysts for Selective Photoreduction of CO₂into Solar Fuels

Cocatalysts for Selective Photoreduction of CO₂into Solar Fuels

Techno-enviro-economic assessment of household and community energy storage in the UK

Layered Nanocomposite 2D-TiO2 with Cu2O Nanoparticles as an Efficient Photocatalyst for 4-Chlorophenol Degradation and Hydrogen Evolution

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Assembly of TiO2‐on‐Cu2O Nanocubes with Narrow‐Band Cu2O‐Induced Visible‐Light‐Enhanced Photocatalytic Activity

Cited by 14 publications

References 27 publications

Cocatalysts for Selective Photoreduction of CO2into Solar Fuels

Cocatalysts for Selective Photoreduction of CO2into Solar Fuels

Techno-enviro-economic assessment of household and community energy storage in the UK

Layered Nanocomposite 2D-TiO2 with Cu2O Nanoparticles as an Efficient Photocatalyst for 4-Chlorophenol Degradation and Hydrogen Evolution

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Assembly of TiO₂‐on‐Cu₂O Nanocubes with Narrow‐Band Cu₂O‐Induced Visible‐Light‐Enhanced Photocatalytic Activity

Cocatalysts for Selective Photoreduction of CO₂into Solar Fuels

Cocatalysts for Selective Photoreduction of CO₂into Solar Fuels