Work

Photo-deposition of dual Ni(OH)2 and NixP cocatalysts on ZnIn2S4/ZnS for efficient photocatalytic hydrogen production

Year: 2026

Type: article

Abstract: Efficient photocatalytic hydrogen production from water splitting remains a critical challenge for sustainable energy solutions. Here, we report dual Ni(OH)2 (NO)/NixP (NP) cocatalysts photo-deposited and ZnS decorated ZnIn2S4 photocatalyst (NOP/ZIS-Z). It exhibits efficient photocatalytic hydrogen production (PHP) with the rate of 5.46 mmol·g−1·h−1 and 420 nm quantum yield of 55.2% in triethanolamine (TEOA) system upon Xe lamp visible light combined with excellent stability. Impressively, its PHP rate reaches 0.54 mmol·g−1·h−1 in pure water under natural sunlight, showing tremendous practical potentials. The synergistic mechanism among ZnS, NO, and NP was revealed: (i) ZnS could transfer electron from ZIS and facilitates charge carrier separation, (ii) NP acts as reduction cocatalysts for proton reduction, (iii) NO functions as oxidation cocatalysts to trap holes for sacrificial reagent/water oxidation. Our work highlights coinstantaneous enhancing photocatalytic reduction and oxidation half-reaction by loading dual cocatalysts onto the heterojunctions. Efficient hydrogen production from water splitting remains a critical challenge for sustainable energy solutions. Here, the authors develop a ZnS-decorated ZnIn2S4 photocatalyst co-loaded with dual Ni(OH)2 and NixP cocatalysts via photochemical deposition, achieving a high photocatalytic hydrogen production rate and good stability.

Source: Communications Chemistry

DOI: 10.1038/s42004-025-01861-z

Authors: Rui Dai, Xing Liu, Jinkun Shi, Longxin Hu, Hua Lai, Junhua Li

Institution: Hengyang Normal University

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $3,690