Novel Heterostructure as a H2-Evolving Photocatalyst Boosting the Z-Scheme Overall Water Splitting Performance under Visible Light Irradiation DOI
Qi Yu, Yuanfeng Zhu, Tengfeng Xie

и другие.

The Journal of Physical Chemistry C, Год журнала: 2024, Номер 128(50), С. 21302 - 21309

Опубликована: Дек. 11, 2024

Tantalum nitride (Ta3N5) has been widely investigated as an extremely promising photocatalyst or photoanode for solar water splitting, but its performance is blocked by inefficient charge separation regardless of using a one-step two-step excitation method. Here, we demonstrate significantly enhanced proton reduction on the particulate Ta3N5 with effort promotion via forming solid solution-based heterostructure composite. One-pot nitridation was adopted to synthesize this novel heterostructure, which composed and BaZrO3–BaTaO2N solution. The as-obtained composite (BaZrO3–BaTaO2N/Ta3N5) found exhibit superior transfer ability compared BaZrO3–BaTaO2N. As result, visible-light-driven Z-scheme overall splitting (OWS) activity optimal BaZrO3–BaTaO2N/Ta3N5 H2-evolving can be promoted about 20 times. This work not only gives first example fabricate heterostructures based solution also offers new avenue improve photocatalytic OWS Ta3N5.

Язык: Английский

Enhanced photocatalytic NO removal over defective Bi-modified Bi2MoO6 nanosheets: The inhibition of toxic NO2 intermediate via high oxygen concentration DOI
Yu Wang,

Junjun Wang,

Qiuhui Zhu

и другие.

Separation and Purification Technology, Год журнала: 2025, Номер 363, С. 132131 - 132131

Опубликована: Фев. 26, 2025

Язык: Английский

Процитировано

0
Emerging Mixed-Anion Semiconductors for Particulate Photocatalytic Water Splitting: Remarkable Structures and Innovative Fabrication Methods DOI Creative Commons
Yunfeng Bao,

Xueshang Xin,

Jiating Qu

и другие.

Artificial photosynthesis., Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Exploring the Photocatalytic Mechanism of BiTi4GaO11: Insights from the Electronic Structure and Chemical Bonding DOI
Guangxiang Lu, Zien Cheng, Maxim Avdeev

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 16, 2025

Photocatalytic water splitting and CO2 reduction offer sustainable solutions to energy environmental issues, but efficient semiconductor photocatalysts are still limited. Oxide with d0 and/or d10 metals often have wide bandgaps, incorporating d10ns2 can raise the valence band maximum (VBM) narrow bandgap. Here, we synthesized BiTi4GaO11 (BTGO), a new photocatalyst containing d106s2, d0, metals. Structural analysis via powder X-ray neutron diffraction confirmed BTGO crystallizes in space group Cmcm, Ga cooccupying all three Ti sites. Density functional theory calculations revealed that conduction minimum (CBM) of is primarily composed t2g - O 2p antibonding orbitals. Hybridization between Bi 6s orbitals leads formation orbitals, which further interact 6p form VBM. This interaction shifts VBM upward, narrows bandgap (Eg = 2.82 eV), enables visible-light absorption. Experimental results demonstrated efficiently catalyzes photocatalytic H2 production reduction. Furthermore, incorporation cocatalysts suppressed recombination photogenerated charge carriers, enhancing activity. work highlights importance electronic structure bonding understanding fundamental mechanisms photocatalysis.

Язык: Английский

Процитировано

0
Effect of Trivalent Metal Cations in Layered Double Perovskites on Highly Selective CO2 Photoreduction to CO DOI
Wei Chen, Yanyi Huang, Daofu Wu

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Trivalent metal cation engineering in vacancy-ordered layered double perovskites (LDP) is a useful strategy to tune photocatalytic activity. However, the regulatory mechanism of composition on performance still lacks in-depth understanding. This study explores LDP with formula Cs4CdX2Cl12 (X = Bi, Sb) for CO2 reduction. The catalytic fine-tuned by regulating M(III)-site ions. yields CO and CH4 from Cs4CdSb2Cl12 MCs were measured at 23.81 2.68 μmol g-1, resulting selectivity 89.9%. Cs4CdBi2Cl12 demonstrated higher yields, produced 90.77 2.53 achieving 97.2%. In addition, situ diffuse reflectance infrared Fourier transform spectra reveal that modulation ions M(III)-position can enhance activity MCs. Density functional theory (DFT) analysis suggests Bi displays lower energy barrier than Sb rate-determining step, thus facilitating effective reduction CO. These findings highlight influence selection structural properties performance.

Язык: Английский

Процитировано

0
Novel Heterostructure as a H2-Evolving Photocatalyst Boosting the Z-Scheme Overall Water Splitting Performance under Visible Light Irradiation DOI
Qi Yu, Yuanfeng Zhu, Tengfeng Xie

и другие.

The Journal of Physical Chemistry C, Год журнала: 2024, Номер 128(50), С. 21302 - 21309

Опубликована: Дек. 11, 2024

Tantalum nitride (Ta3N5) has been widely investigated as an extremely promising photocatalyst or photoanode for solar water splitting, but its performance is blocked by inefficient charge separation regardless of using a one-step two-step excitation method. Here, we demonstrate significantly enhanced proton reduction on the particulate Ta3N5 with effort promotion via forming solid solution-based heterostructure composite. One-pot nitridation was adopted to synthesize this novel heterostructure, which composed and BaZrO3–BaTaO2N solution. The as-obtained composite (BaZrO3–BaTaO2N/Ta3N5) found exhibit superior transfer ability compared BaZrO3–BaTaO2N. As result, visible-light-driven Z-scheme overall splitting (OWS) activity optimal BaZrO3–BaTaO2N/Ta3N5 H2-evolving can be promoted about 20 times. This work not only gives first example fabricate heterostructures based solution also offers new avenue improve photocatalytic OWS Ta3N5.

Язык: Английский

Процитировано

0