Neodymium oxide (Nd2O3) coupled tubular g-C3N4, an efficient dual-function catalyst for photocatalytic hydrogen production and NO removal

Tan, Yuwei; Wei, Siping; Liu, Xingyan; Pan, Baoyu; Shike, Liu; Wu, Jie; Fu, Min; Jia, Yiming; He, Youzhou

doi:10.1016/j.scitotenv.2021.145583

Cited by 44 publications

(10 citation statements)

References 54 publications

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“…Since NO 2 is more toxic than NO and leads to greater damage to the environment, the production of NO 2 should be minimized when NO is oxidized to NO x . 65 Fig. 4d shows that THS-1 has better NO removal efficiency than P25, and the reaction has lower selectivity for NO 2 , which is also a major advantage of using THS-1 for photocatalytic NO removal.…”

Section: Resultsmentioning

confidence: 99%

Raspberry-like TiO₂ hollow spheres consisting of small nanocrystals towards efficient NO removal

Zhang

et al. 2022

Environ. Sci.: Nano

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Section: Resultsmentioning

confidence: 99%

Raspberry-like TiO₂ hollow spheres consisting of small nanocrystals towards efficient NO removal

Zhang

et al. 2022

Environ. Sci.: Nano

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“…Graphitic carbon nitride (g-C 3 N 4 ), a non-metallic photocatalyst, with characteristics of lower cost, a suitable band gap position (2.7 eV), and higher stability, is a desirable semiconductor for its application toward efficient energy production. − Coupling LDH with g-C 3 N 4 is a proficient strategy to maximize the photoactivity . The 2D layered structures of CoAl-LDH and 2D g-C 3 N 4 provide abundant surface-active sites for the construction of photocatalytic composites, which reduce the charge transfer distance of photoinduced charge carriers.…”

Section: Introductionmentioning

confidence: 99%

Constructing Highly Stable CoAl-LDH-Coupled g-C₃N₄ 2D/2D Heterojunctions for Solar Energy-Driven Conversion of Flared Gas to Syngas through Dry-/Bireforming of Methane

Tahir

Mansoor

2023

Energy Fuels

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Fabricating highly stable CoAl-layered double hydroxide (LDH)-anchored graphitic carbon nitride (g-C3N4) 2D/2D heterojunction composites for photocatalytic flared gas (methane) reduction with CO2 through methane dry reforming (MDR) and methane bireforming has been investigated. The self-assembly growth of CoAl-LDH flakes with layered g-C3N4 sheets enables proficient charge carrier separation to provide good photoactivity and stability. The optimized 15 wt % CoAl-LDH/g-C3N4 exhibited efficient syngas production, in which H2 and CO yield rates were 4.8 and 3.8 folds higher than those of pure CoAl-LDH, respectively. This activity enhancement can be attributed to strong interfacial interaction, higher light absorption, acidic/basic characteristics, and an improved charge-transfer process. With different feed ratios (CH4/CO2), the highest syngas production was achieved with a ratio of 1.0, confirming efficient adsorption of both reactants due to the basic characteristics of composites to uptake CO2/CH4. During photocatalytic CO2 reduction with CH4/H2O through the bireforming of methane, lower photoactivity for CO/H2 production was observed than using MDR due to a competing sorption process. The quantum yield further confirms higher photon flux utilization for continuous CO and H2 evolution, as evidenced by good recyclability in multiple cycles. This study provides a new opportunity to construct CoAl-LDH-coupled g-C3N4 heterojunctions to utilize natural gas flaring toward syngas production through the dry reforming process. Photocatalytic MDR technology proves to be an excellent option for flared gas utilization for syngas (CO and H2) production in a cleaner environment.

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“…These studies guide us to enhance the absorbing properties of CNFs by adding REO. Unlike ordinary magnetic particles, Nd 2 O 3 not merely has the ability of magnetic loss, but also is a kind of semiconductor oxide . There are seven unpaired electrons in the 4f orbital of Nd, which exceeds that of Fe, Co, and Ni.…”

Section: Introductionmentioning

confidence: 99%

“…Unlike ordinary magnetic particles, Nd 2 O 3 not merely has the ability of magnetic loss, but also is a kind of semiconductor oxide. 27 There are seven unpaired electrons in the 4f orbital of Nd, which exceeds that of Fe, Co, and Ni. The magnetic moment generated by the electron and electron orbital spins makes rare earth elements have a high atomic magnetic moment.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Nd₂O₃/CNFs Composite for Microwave Absorption and Anti-Corrosion Applications

Liu

Huang

Wang

et al. 2022

ACS Appl. Electron. Mater.

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To improve the limitations of traditional microwave absorbing materials (MAMs), such as high density and narrow absorption bandwidth, neodymium oxide/carbon nanofiber (Nd2O3/CNF) composites were successfully prepared by electrospinning technology combined with a high-temperature carbonization process. The three-dimensional network structure of CNFs provides a path for conducting electromagnetic waves, and its porous structure also increases the multiple reflections of electromagnetic waves in the composite fibers, which significantly attenuates the energy of electromagnetic waves. Additionally rare-earth elements have a unique electronic arrangement on the 4f electron layer. The addition of Nd2O3 can turn the dielectric constant of Nd2O3/CNF and optimize the impedance matching. Also, Nd2O3 nanoparticles (Nd2O3–NPs) resulted in numerous of heterojunction surfaces and introduced the magnetic loss mechanism. Under the combined action of the double loss mechanism, the minimum reflection loss of Nd2O3/CNF composite fiber is −66.7 dB at 9.36 GHz, and the effective absorption bandwidth is 4.4 GHz (7.68–12.08 GHz). The radar cross section simulation results also prove that the composite fibers exhibit strong consumption of electromagnetic waves. Additionally, the excellent flexibility and anticorrosion properties of the composite fibers make them satisfy the multifunctional requirements of MAMs.

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Neodymium oxide (Nd2O3) coupled tubular g-C3N4, an efficient dual-function catalyst for photocatalytic hydrogen production and NO removal

Cited by 44 publications

References 54 publications

Raspberry-like TiO₂ hollow spheres consisting of small nanocrystals towards efficient NO removal

Raspberry-like TiO₂ hollow spheres consisting of small nanocrystals towards efficient NO removal

Constructing Highly Stable CoAl-LDH-Coupled g-C₃N₄ 2D/2D Heterojunctions for Solar Energy-Driven Conversion of Flared Gas to Syngas through Dry-/Bireforming of Methane

Multifunctional Nd₂O₃/CNFs Composite for Microwave Absorption and Anti-Corrosion Applications

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Neodymium oxide (Nd2O3) coupled tubular g-C3N4, an efficient dual-function catalyst for photocatalytic hydrogen production and NO removal

Cited by 44 publications

References 54 publications

Raspberry-like TiO2 hollow spheres consisting of small nanocrystals towards efficient NO removal

Raspberry-like TiO2 hollow spheres consisting of small nanocrystals towards efficient NO removal

Constructing Highly Stable CoAl-LDH-Coupled g-C3N4 2D/2D Heterojunctions for Solar Energy-Driven Conversion of Flared Gas to Syngas through Dry-/Bireforming of Methane

Multifunctional Nd2O3/CNFs Composite for Microwave Absorption and Anti-Corrosion Applications

Contact Info

Product

Resources

About

Raspberry-like TiO₂ hollow spheres consisting of small nanocrystals towards efficient NO removal

Raspberry-like TiO₂ hollow spheres consisting of small nanocrystals towards efficient NO removal

Constructing Highly Stable CoAl-LDH-Coupled g-C₃N₄ 2D/2D Heterojunctions for Solar Energy-Driven Conversion of Flared Gas to Syngas through Dry-/Bireforming of Methane

Multifunctional Nd₂O₃/CNFs Composite for Microwave Absorption and Anti-Corrosion Applications