Promoting the protonation step on the interface of titanium dioxide for selective photocatalytic reduction of CO2 to CH4 by using red phosphorus quantum dots

Lu, Yinglong; Liu, Minghao; Zheng, Ningchao; He, Xiaoming; Hu, Ruiting; Zhou, Quan; Hu, Zhuofeng

doi:10.1007/s12274-021-3943-5

Cited by 14 publications

(10 citation statements)

References 44 publications

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“…The reaction mechanism researches of photocatalytic CO 2 RR are important due to the complicated reaction process and consequential various reduction products. The selectivity of reduction products is significantly affected by reaction pathways, [85][86][87][88][89] especially for multi-carbon product species. [61,[90][91][92] A series of elementary steps such as electron/proton transfer, CO bond breaking, intermediates forming, and new bonds creating, etc.…”

Section: General Reaction Pathways For Photocatalytic Co 2 Reductionmentioning

confidence: 99%

“…The introduction of red phosphorus quantum dots (RPQDs)'s into TiO 2 or the introduction of BP into covalent triazine framework or black titania were found to yield CH 4 instead of CO with high selectively. [31,86,146] Nevertheless, the competitive reaction of H 2 evolution was also found to distinctly exist in many BP-based photocatalysts. Furthermore, the understanding of photocatalytic CO 2 RR mechanism could be further deepened by the investigation of product's selectivity tuning.…”

Section: Evaluation Index Of Phosphorus-based Materials For Photocata...mentioning

confidence: 99%

“…The RPQDs were also found to be promising photocatalyst candidates for CO 2 RR, acting as a co-catalyst for TiO 2 . [86] The Small 2023, 19 Not mentioned [168] RPQDs were proved to greatly enhance the selectivity of CH 4 generation in CO 2 RR (4.697 µmol g −1 h −1 ) by converting the protonation step (a key step in CH 4 production) from endothermic to exothermic, which is 27.4 times higher than that of pristine TiO 2 (0.186 µmol g −1 h −1 ).…”

Section: Red Phosphorus As Co-catalystsmentioning

confidence: 99%

“…Gas-solid reaction 62.7 µmol g −1 h −1 (CO) Bulk fibrous phase RP (fibrous RP): 22 µmol g −1 h −1 (CO); BP nanosheets: 6 µmol g −1 h −1 (CO) [43] RPQDs/TiO 2 50 mg catalyst, 0.5 g KHCO 3 , 1 mL 6 m H 2 SO 4 300 W Xe lamp Gas-solid reaction 4.697 µmol g −1 h −1 (CO) TiO 2 : 0.186 µmol g −1 h −1 (CO) [86] separation efficiency and lifetime of photo-generated carriers, 3) adsorption, activation, and desorption of reactants/intermediates. The corresponding optimization methods for RP-based photocatalysts are also discussed.…”

Section: W Xe Lampmentioning

confidence: 99%

“…An S-scheme black phosphorus/Bi 19 Br 3 S 27 nanorods heterojunction (BP/ Bi 19 Br 3 S 27 ) was constructed by Niu's et al to enhance H* supply for effective CO 2 RR. [86] The photocatalytic active sites were calculated to change from Bi 19 . More importantly, the H* was demonstrated to be effectively stabilized by the BP sites.…”

Section: Black Phosphorus-based Heterostructures As Hybrid Catalystsmentioning

confidence: 99%

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A Review of Phosphorus Structures as CO₂ Reduction Photocatalysts

Zhai

Zhang

et al. 2023

Small

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Effective photocatalytic carbon dioxide (CO2) reduction into high‐value‐added chemicals is promising to mitigate current energy crisis and global warming issues. Finding effective photocatalysts is crucial for photocatalytic CO2 reduction. Currently, metal‐based semiconductors for photocatalytic CO2 reduction have been well reviewed, while review of nonmetal‐based semiconductors is almost limited to carbon nitrides. Phosphorus is a promising nonmetal photocatalysts with various allotropes and tunable band gaps, which has been demonstrated to be promising non‐metallic photocatalysts. However, no systematic review about phosphorus structures for photocatalytic CO2 reduction reactions has been reported. Herein, the progresses of phosphorus structures as photocatalysts for CO2 reduction are reviewed. The fundamentals of photocatalytic CO2 reduction, corresponding properties of phosphorus allotropes, photocatalysts with phosphorus doping or phosphorus‐containing ligands, research progress of phosphorus allotropes as photocatalysts for CO2 reduction have been reviewed in this paper. The future research and perspective of phosphorus structures for photocatalytic CO2 reduction are also presented.

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Section: General Reaction Pathways For Photocatalytic Co 2 Reductionmentioning

confidence: 99%

Section: Evaluation Index Of Phosphorus-based Materials For Photocata...mentioning

confidence: 99%

Section: Red Phosphorus As Co-catalystsmentioning

confidence: 99%

Section: W Xe Lampmentioning

confidence: 99%

Section: Black Phosphorus-based Heterostructures As Hybrid Catalystsmentioning

confidence: 99%

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A Review of Phosphorus Structures as CO₂ Reduction Photocatalysts

Zhai

Zhang

et al. 2023

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Size‐Dependent Multi‐Electron Donation in Metal‐Complex Quantum Dots Hybrid Catalyst for Photocatalytic Carbon Dioxide Reduction

Zhao,

Abdellah,

Cao

et al. 2024

Adv Funct Materials

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The effective conversion of carbon dioxide (CO2) into valuable chemical fuels relies significantly on the donation of multiple electrons. Its efficiency is closely linked to both the density and lifetime of excited charge carriers. In this study, a hybrid catalyst system comprising covalently bonded InP/ZnS quantum dots (QDs) and Re‐complexes is showcased. The electronic band alignment between the QDs and the Re‐complexes is revealed to dominate the multi‐electron transfer process for photocatalytic conversion to methane (CH4). Notably, the size of the QDs is found to be a determining parameter. Among the three QD sizes investigated, transient absorption spectroscopy studies unveil that rapid multi‐electron transfer from the QDs to the Re‐catalyst occurs in smaller QDs (2.3 nm) due to the substantial driving force. Consequently, the photocatalytic conversion of CO2 to CH4 is significantly enhanced with a turnover number of 6, corresponding to the overall apparent quantum yield of ≈1%. This research underscores the possibilities of engineering multi‐electron transfer by manipulating the electronic band alignment within a catalytic system. This can serve as a guide for optimizing photocatalytic CO2 reduction.

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Hydrophobic Ni@N‐Doped TiO₂ Nanosheet Arrays‐Carbon Paper Photocatalyst for CO₂ Photoreduction at Tri‐Phase Interfaces

Zhao

Dang

Xuan

et al. 2023

Advanced Sustainable Systems

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Rational interphase reaction provides a feasible method to overcome the matters of insufficient adsorption of CO2 molecules at the catalytic sites and competitive hydrogen evolution reaction (HER), which can increase the formation rate and selectivity of carbon derivatives in photocatalytic CO2 reduction. Herein, a hydrophobic photocatalyst with TiO2 nanosheet arrays grown on hydrophobic carbon paper (TiO2‐HCP) is fabricated using a combination of magnetron sputtering and hydrothermal method, and its unique structure not only endows it excellent light absorption and effective carrier spatial separation but also avoids the hydrophobic reagent covering reactive sites. When the interphase reaction shifts from solid–liquid diphase to gas‐liquid‐solid tri‐phase, the photocatalytic CO2 reduction over TiO2‐HCP mainly generates CO molecules and effectively suppresses HER due to the HCP suppressing the mass transfer of H2O molecules to active sites. Notably, amounts of H2 byproduct can further react with CO2/CO to produce high value‐added CH4 resultant by modifying the N‐doped TiO2‐HCP with nickel/nickel oxide species. In the tri‐phase interfacial CO2 photoreduction system, the CH4 formation rate of Ni@N‐doped TiO2‐HCP reaches 134.17 µmol m−2 h−1 (about 74.6% selectivity) and total carbon derivatives selectivity is about 93%.

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Promoting the protonation step on the interface of titanium dioxide for selective photocatalytic reduction of CO2 to CH4 by using red phosphorus quantum dots

Cited by 14 publications

References 44 publications

A Review of Phosphorus Structures as CO₂ Reduction Photocatalysts

A Review of Phosphorus Structures as CO₂ Reduction Photocatalysts

Size‐Dependent Multi‐Electron Donation in Metal‐Complex Quantum Dots Hybrid Catalyst for Photocatalytic Carbon Dioxide Reduction

Hydrophobic Ni@N‐Doped TiO₂ Nanosheet Arrays‐Carbon Paper Photocatalyst for CO₂ Photoreduction at Tri‐Phase Interfaces

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Promoting the protonation step on the interface of titanium dioxide for selective photocatalytic reduction of CO2 to CH4 by using red phosphorus quantum dots

Cited by 14 publications

References 44 publications

A Review of Phosphorus Structures as CO2 Reduction Photocatalysts

A Review of Phosphorus Structures as CO2 Reduction Photocatalysts

Size‐Dependent Multi‐Electron Donation in Metal‐Complex Quantum Dots Hybrid Catalyst for Photocatalytic Carbon Dioxide Reduction

Hydrophobic Ni@N‐Doped TiO2 Nanosheet Arrays‐Carbon Paper Photocatalyst for CO2 Photoreduction at Tri‐Phase Interfaces

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A Review of Phosphorus Structures as CO₂ Reduction Photocatalysts

A Review of Phosphorus Structures as CO₂ Reduction Photocatalysts

Hydrophobic Ni@N‐Doped TiO₂ Nanosheet Arrays‐Carbon Paper Photocatalyst for CO₂ Photoreduction at Tri‐Phase Interfaces