PtSe₂/SiH van der Waals type-II heterostructure: a high efficiency photocatalyst for water splitting

Abstract

<p>The construction of type-II van der Waals heterostructure is an effective method to design efficient photocatalysts. In this study, we constructed PtSe/SiH van der Waals heterojunction, investigated its structural, electronic...</p>

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

“…Noble metal dichalcogenides (MX 2 , M = Pt, Pd, Ir, Re, etc., X = S, Se, Te) are known to possess photocatalytic activity for a long time. − However, their use is limited due to the cost issue and small band gap. Recently, some excellent reports on 2D MX 2 have emerged and rejuvenated the field.…”

Insight into the enhanced photocatalytic activity of Mo and P codoped SrTiO3from first-principles prediction

“…As mentioned previously in the literature, the enhanced oxidation or reduction capacity depends on the downward shi of the VBM or the upward shi of the CBM, respectively. 54,55 In the cases of the three (Mo + P) codoped congurations, the CBMs shied upward by 0.83, 0.90 and 0.95 eV, respectively, as compared to the pure SrTiO 3 , which implies that the photo-reduction ability is enhanced, and the absorption edges move towards the visible light region. The VBMs of the three codoped systems moved downward as compared to that of pure SrTiO 3 by 0.66, 0.73 and 0.78 eV, respectively, which means that the oxidation ability is also improved.…”

GaN/MgI2 van der Waals heterostructure: a two-factor tunable photocatalyst for hydrogen evolution

“…Also, the presence of the electrostatic potential difference indicates that an internal electric field is generated between the two layers of materials. [32][33][34] Fig. 2c and f depict the electrostatic potential distributions of 3L-Ga-GaN/ MgI 2 and 3L-N-GaN/MgI 2 heterostructures, respectively.…”