Ultrathin porous g-C3N4 nanosheets modified with AuCu alloy nanoparticles and C-C coupling photothermal catalytic reduction of CO  to ethanol

Li, Pengyan; Liu, Li; An, Weijia; Wang, Huan; Guo, Hongxia; Liang, Yinghua

doi:10.1016/j.apcatb.2020.118618

Cited by 173 publications

(82 citation statements)

References 67 publications

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“…Thus, the external heating promoted photo-driven nitrogen oxidation via the increase of NO equilibrium concentration, 8 the suppression of electron-hole recombination, and the enhancement of product desorption. [32][33][34][35][36][37] With the increase of monochromatic light wavelength, the AQE value decreased, which was consistent with the absorption spectra of Ru SAs/TiO 2 (Figure 2d). Furthermore, the NO yield rate showed no obvious decay during eight cycles (Figure S11).…”

Section: Resultssupporting

confidence: 69%

Atomically Dispersed Ru-Decorated TiO ₂ Nanosheets for Thermally Assisted Solar-Driven Nitrogen Oxidation into Nitric Oxide

Huang

Wang

et al. 2022

CCS Chem

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Thermal-assisted photo-driven nitrogen oxidation to nitric oxide (NO) by using air as reactants is a promising way to supersede the traditional NO synthesis industry accompanied by huge energy expenditure and greenhouse gas emission. Meanwhile, breaking the N ≡ N triple bond (941 kJ•mol -1 ) in nitrogen is still challenging, and the development of efficient catalysts is highly required. Herein, Ru single atoms decorated TiO 2 nanosheets (Ru SAs/TiO 2 ) were constructed and achieved superior performance for NO photosynthesis with a product rate of 192 μmol g -1 h -1 and a quantum efficiency of 0.77 % at 365 nm. Both 15 N isotope labelling experiments and in situ near ambient pressure X-ray photoelectron spectroscopy (in situ NAP-XPS) proved the origin of NO from N 2 photooxidation. A series of in situ characterizations and theoretical calculations unveiled the reaction pathway of nitrogen photooxidation. Breaking O-O bond to form (N-O) 2 -Ru intermediates was demonstrated as the rate-determining step. Importantly, the single atomic structure was proved to inhibit the aggregation and inactivation of Ru, leading to outstanding durability.

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Section: Resultssupporting

confidence: 69%

Atomically Dispersed Ru-Decorated TiO ₂ Nanosheets for Thermally Assisted Solar-Driven Nitrogen Oxidation into Nitric Oxide

Huang

Wang

et al. 2022

CCS Chem

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“…This band bending allows photo-generated electrons to migrate to the electrode/solution interface and the electrons participate in the CO 2 reduction reaction to produce hydrocarbon fuel. According to the thermodynamic requirements, the main photocathode materials are Cu 2 O [ 49 ], Cu 2 ZnSnS 4 [ 50 ], Co 2 P and p-Si [ 51 ].…”

Section: Materials For Eapmentioning

confidence: 99%

Extraterrestrial artificial photosynthetic materials for in-situ resource utilization

Yang

Zhang

et al. 2021

National Science Review

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Missions as aerospace milestones in human history, including returning to the moon and manned Martian missions, are being implemented in recent years. Space exploration has become one of the global common goals. And the survival and development of human beings in the extraterrestrial extreme environment is becoming the basic ability and technology for manned space exploration. For the purpose of fulfilling the goal of extraterrestrial survival, researchers in Nanjing University and the China Academy of Space Technology proposed the extraterrestrial artificial photosynthesis (EAP) technology. By simulating natural photosynthesis of green plants on the earth, EAP converts CO2/H2O into fuels and oxygen in an in-situ, accelerated and controllable manner by using waste CO2 in confined space of spacecrafts, or abundant CO2 resources in extraterrestrial celestial environment, e.g. the Mars. Thus, the material loading of manned spacecraft can be greatly reduced to support affordable and sustainable deep space exploration. In this paper, the EAP technology was compared with the existing methods of converting CO2/H2O into fuel and oxygen in the aerospace field, especially Sabatier method and Bosch reduction method. And the research progress of possible EAP materials for in-situ utilization of extraterrestrial resources were discussed in depth. This review finally listed the challenges that EAP process may encounter with, which need to be focused on for the future implementation and application. We expected to deepen the understanding of artificial photosynthetic materials and technologies, aiming to strongly support the development of manned spaceflight.

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“…[13] Compared with the g-C 3 N 4 , the above two characteristic diffraction peaks of pg-C 3 N 4 show the weaker intensity caused by the pore defects, as well as those of Au/pg-C 3 N 4 . With the increase of loading amounts of Au nanoparticles, four peaks at 38.2°, 44.4°, 64.6°, and 77.5°corresponding to (111), (200), (220), and (311) planes of Au nanoparticles, respectively, [26] have the gradually increased intensity. It can be also seen that the crystal structure of pg-C 3 N 4 still remains unchanged after the decoration of Au nanoparticles.…”

Section: Xrdmentioning

confidence: 99%

Photocatalytic Degradation of Organic Pollutants Using Porous g‐C₃N₄ Nanosheets Decorated with Gold Nanoparticles

Cong

Wang

et al. 2021

ChemistrySelect

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In this work, a composite photocatalyst consisted of the porous graphitic carbon nitride (pg-C 3 N 4 ) nanosheets decorated with in-situ grown gold (Au) nanoparticles were prepared. By characterizing and analyzing chemical compositions and structures, and optical and electrical properties of this Au/pg-C 3 N 4 composite, the excellent photocatalytic performance mainly comes from the following aspects: firstly, pg-C 3 N 4 synthesized from melamine by high-temperature calcination with the assistance of ascorbic acid has larger specific surface area and narrower band gap width than common g-C 3 N 4 ; secondly, localized surface plasmon resonance (LSPR) effect of Au nanoparticles can enhance light absorption of pg-C 3 N 4 via near-field enhancement-induced excitation; thirdly, the heterojunction formed between Au nanoparticles and pg-C 3 N 4 nanosheets can promote electron transfer. Consequently, Au/pg-C 3 N 4 presented the obvious improvement of photocatalytic activity on the degradation of rhodamine B and amaranth under simulated solar irradiation that the kinetic rate constant of degradation reaction can be increased by 3.9 and 5.7 times compared with g-C 3 N 4 , respectively.

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Ultrathin porous g-C3N4 nanosheets modified with AuCu alloy nanoparticles and C-C coupling photothermal catalytic reduction of CO to ethanol

Cited by 173 publications

References 67 publications

Atomically Dispersed Ru-Decorated TiO ₂ Nanosheets for Thermally Assisted Solar-Driven Nitrogen Oxidation into Nitric Oxide

Atomically Dispersed Ru-Decorated TiO ₂ Nanosheets for Thermally Assisted Solar-Driven Nitrogen Oxidation into Nitric Oxide

Extraterrestrial artificial photosynthetic materials for in-situ resource utilization

Photocatalytic Degradation of Organic Pollutants Using Porous g‐C₃N₄ Nanosheets Decorated with Gold Nanoparticles

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Ultrathin porous g-C3N4 nanosheets modified with AuCu alloy nanoparticles and C-C coupling photothermal catalytic reduction of CO to ethanol

Cited by 173 publications

References 67 publications

Atomically Dispersed Ru-Decorated TiO 2 Nanosheets for Thermally Assisted Solar-Driven Nitrogen Oxidation into Nitric Oxide

Atomically Dispersed Ru-Decorated TiO 2 Nanosheets for Thermally Assisted Solar-Driven Nitrogen Oxidation into Nitric Oxide

Extraterrestrial artificial photosynthetic materials for in-situ resource utilization

Photocatalytic Degradation of Organic Pollutants Using Porous g‐C3N4 Nanosheets Decorated with Gold Nanoparticles

Contact Info

Product

Resources

About

Atomically Dispersed Ru-Decorated TiO ₂ Nanosheets for Thermally Assisted Solar-Driven Nitrogen Oxidation into Nitric Oxide

Atomically Dispersed Ru-Decorated TiO ₂ Nanosheets for Thermally Assisted Solar-Driven Nitrogen Oxidation into Nitric Oxide

Photocatalytic Degradation of Organic Pollutants Using Porous g‐C₃N₄ Nanosheets Decorated with Gold Nanoparticles