CuO-decorated dual-phase TiO2 microspheres with enhanced activity for photocatalytic CO2 reduction in liquid–solid regime

Zhao, Yunxia; Chen, Jiaxin; Cai, Wei; Bu, Yunfei; Huang, Qiong; Tao, Tao; Lu, Jian-Gang

doi:10.1016/j.cplett.2019.04.010

Cited by 17 publications

(16 citation statements)

References 32 publications

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“…Since V fb is generally 0.2 V more positive than the conduction band (CB) potential (E CB ) for an n-type semiconductor (Chen et al, 2013a; Wang et al, 2018d), the calculated E CB is ~-0.62 V vs. NHE. Based on the corresponding LUMO potential of NH 2 -MIL-125 (−0.62 V) (Zhao et al, 2019) and the bandgap (HOMO–LUMO gap width) in Figure 5A, the position of the HOMO energy level is further estimated to be 2.07 V vs. NHE. Under UV-light irradiation, NH 2 -MIL-125 can absorb photon energy and then be excited to generate electron-hole pairs.…”

Section: Resultsmentioning

confidence: 99%

A Highly Efficient Composite Catalyst Constructed From NH2-MIL-125(Ti) and Reduced Graphene Oxide for CO2 Photoreduction

et al. 2019

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Substantial consumption of fossil fuels causes an increase in CO2 emissions and intensifies global pollution problems, such as the greenhouse effect. Recently, a new type of ultra-low-density porous material, metal-organic frameworks (MOFs), has been developed for the photocatalytic conversion of CO2. Herein, a composite photocatalytic catalyst based on NH2-MIL-125(Ti) and reduced graphene oxide (rGO@NH2-MIL-125) was fabricated through a facile “one-pot” process. The acquired materials were characterized to obtain their structures, morphologies, and optical information. The experimental results showed that methyl formate (MF) was the predominant reaction product, and rGO@NH2-MIL-125 exhibited the highest yield of 1,116 μmol·g−1·h−1, more than twice that of pure MIL-125. The high photoactivity of rGO@NH2-MIL-125 can be ascribed to the effective spatial separation and transfer of photoinduced carriers, largely due to the synergistic effect of amino functionality and rGO incorporation. rGO@NH2-MIL-125 also displayed acceptable repeatability in cyclic runs for CO2 reduction.

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Section: Resultsmentioning

confidence: 99%

A Highly Efficient Composite Catalyst Constructed From NH2-MIL-125(Ti) and Reduced Graphene Oxide for CO2 Photoreduction

et al. 2019

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“…Adapted with permission. [ 52 ] Copyright 2019, Elsevier. c) CH 4 evolution in the gaseous phase reaction over the as‐prepared NaNbO 3 samples with 0.5 wt% Pt loading under the irradiation of a 300 W Xe lamp ( l > 300 nm).…”

Section: Homojunctionsmentioning

confidence: 99%

“…TiO 2 has at least 11 phases, in which anatase, rutile, and brookite are the most common phases. [ 52 ] Anatase with {001} and {101} facets is the most widely investigated due to its relatively high CO 2 adsorption and PC activity. However, polyphases TiO 2 has rarely been studied for CO 2 reduction.…”

Section: Homojunctionsmentioning

confidence: 99%

“…Based on previous studies, the two different phases of polyphase TiO 2 with distinctive band structures can enhance the light adsorption and charge separation. Therefore, Zhao et al [ 52 ] synthesized CuO‐decorated dual‐phases TiO 2 microspheres, realizing outstanding methyl formate (MF) production (450 μmol g −1 h −1 ) in methanol. X‐ray diffraction and Raman spectra strongly evidenced the presence of the anatase and TiO 2 (B) phases.…”

Section: Homojunctionsmentioning

confidence: 99%

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Junction Engineering for Photocatalytic and Photoelectrocatalytic CO₂ Reduction

Liu

Zhang

2020

Solar RRL

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Artificial photosynthesis of clean fuels shows fascinating prospects for solving the energy crisis and environmental pollution. However, the solar conversion efficiency is too low to fulfill industrialization requirements, which is confined by the poor photon utilization, severe recombination of electrons and holes, and insufficient reactive sites. Fortunately, junction engineering displays outstanding performance in conquering the aforementioned problems. Herein, an updated fundamental understanding of various junction engineering for enhancing the efficiency, selectivity, and stability of solar‐driven CO2 reduction is provided. The recent progresses of heterojunctions, homojunctions, and multijunctions for photocatalytic (PC) and photoelectrochemical (PEC) CO2 reduction are focused on, especially their essential roles in facilitating the key PC or PEC processes, including charge separation and transfer, adsorption and activation of CO2, and desorption of products, which may provide an interactively referential development pathway for CO2 photoreduction. Finally, an outlook on the current challenges and perspectives of junction engineering design of photocatalysts for solar‐driven CO2 reduction is provided.

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“…In this review, the most promising semiconductors with heterojunction with TiO 2 photocatalysts for CO 2 photoreduction, such as C 3 N 4 [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ], CeO 2 [ 34 , 35 , 36 , 37 , 38 ], CuO [ 39 , 40 , 41 , 42 , 43 ], CdS [ 44 , 45 , 46 , 47 ], MoS 2 [ 48 , 49 , 50 , 51 ], and others [ 52 , 53 , 54 ], are summarized.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Reduction of Carbon Dioxide on TiO2 Heterojunction Photocatalysts—A Review

2022

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The photocatalytic reduction of carbon dioxide to renewable fuel or other valuable chemicals using solar energy is attracting the interest of researchers because of its great potential to offer a clean fuel alternative and solve global warming problems. Unfortunately, the efficiency of CO2 photocatalytic reduction remains not very high due to the fast recombination of photogenerated electron–hole and small light utilization. Consequently, tremendous efforts have been made to solve these problems, and one possible solution is the use of heterojunction photocatalysts. This review begins with the fundamental aspects of CO2 photocatalytic reduction and the fundamental principles of various heterojunction photocatalysts. In the following part, we discuss using TiO2 heterojunction photocatalysts with other semiconductors, such as C3N4, CeO2, CuO, CdS, MoS2, GaP, CaTiO3 and FeTiO3. Finally, a concise summary and presentation of perspectives in the field of heterojunction photocatalysts are provided. The review covers references in the years 2011–2021.

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CuO-decorated dual-phase TiO2 microspheres with enhanced activity for photocatalytic CO2 reduction in liquid–solid regime

Cited by 17 publications

References 32 publications

A Highly Efficient Composite Catalyst Constructed From NH2-MIL-125(Ti) and Reduced Graphene Oxide for CO2 Photoreduction

A Highly Efficient Composite Catalyst Constructed From NH2-MIL-125(Ti) and Reduced Graphene Oxide for CO2 Photoreduction

Junction Engineering for Photocatalytic and Photoelectrocatalytic CO₂ Reduction

Photocatalytic Reduction of Carbon Dioxide on TiO2 Heterojunction Photocatalysts—A Review

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CuO-decorated dual-phase TiO2 microspheres with enhanced activity for photocatalytic CO2 reduction in liquid–solid regime

Cited by 17 publications

References 32 publications

A Highly Efficient Composite Catalyst Constructed From NH2-MIL-125(Ti) and Reduced Graphene Oxide for CO2 Photoreduction

A Highly Efficient Composite Catalyst Constructed From NH2-MIL-125(Ti) and Reduced Graphene Oxide for CO2 Photoreduction

Junction Engineering for Photocatalytic and Photoelectrocatalytic CO2 Reduction

Photocatalytic Reduction of Carbon Dioxide on TiO2 Heterojunction Photocatalysts—A Review

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Junction Engineering for Photocatalytic and Photoelectrocatalytic CO₂ Reduction