Atomically thin PdSeO₃ nanosheets: a promising 2D photocatalyst produced by quaternary ammonium intercalation and exfoliation

Abstract

In 2018, the two-dimensional (2D) PdSeO3 monolayer was predicted to be a highly promising photocatalyst for direct overall water splitting in the light of density functional theory (DFT) computations.

Anisotropic Janus SiP2 Monolayer as a Photocatalyst for Water Splitting

“…A variety of 2D photocatalytic materials already have been studied experimentally and/or theoretically, such as g-C 3 N 4 , 8 BN, 9 phosphorene, 10 transition-metal dichalcogenides, 11 PdSeO 3 , 12 , 13 and covalent organic frameworks, 14 some demonstrating excellent efficiency. Still, photocatalysts for water splitting are rare.…”

“…5 Fast carrier transport and short distances maximize the utilization of the photogenerated carriers, 6 and dependence of the electron properties on quantities such as the thickness, surface functionalization, and external strain makes it possible to enhance the utilization of the sunlight. 7 A variety of 2D photocatalytic materials already have been studied experimentally and/or theoretically, such as g-C 3 N 4 , 8 BN, 9 phosphorene, 10 transition-metal dichalcogenides, 11 PdSeO 3 , 12,13 and covalent organic frameworks, 14 some demonstrating excellent efficiency. Still, photocatalysts for water splitting are rare.…”

Quaternary Ammonium-Mediated Delamination of Europium-Based Metal–Organic Framework into Ultrathin Nanosheets for the Selective Photoelectrochemical Sensing of Fe3+

“…Both the electrostatic repulsion force and the steric hindrance of CTAB cations exert strong effects on the formation of the layered structure and even promote the delamination of Eu-MOF. 13,15 Photoelectrochemical Fe 3+ Ion Sensing Properties. Fe 3+ ion plays a dominant role in environmental science, and trace Fe 3+ ion detection in aqueous solution has great significance.…”

2D Pentagonal Pd‐Based Janus Transition Metal Dichalcogenides for Photocatalytic Water Splitting

“…[ 28 ] Two years later, such PdSeO 3 nanosheets were experimentally realized by Zhang et al, and their potential as water‐splitting photocatalysts was evaluated. [ 29 ] These nanosheets were established to be chemically stable, and they displayed outstanding activity in conducting photocatalytic HER. [ 29 ] While the constituents and structure of the PdSeO 3 monolayer bear uncanny similarity to 2D Pd‐based Janus TMDs and the pentagonal configuration, respectively, little research on the structures and electronic properties of 2D Pd‐based Janus TMDs has been conducted.…”

“…[ 29 ] These nanosheets were established to be chemically stable, and they displayed outstanding activity in conducting photocatalytic HER. [ 29 ] While the constituents and structure of the PdSeO 3 monolayer bear uncanny similarity to 2D Pd‐based Janus TMDs and the pentagonal configuration, respectively, little research on the structures and electronic properties of 2D Pd‐based Janus TMDs has been conducted. In particular, their ground‐state configurations and potential in facilitating water splitting as photocatalysts have not been studied.…”