Selective anchoring of Pt NPs on covalent triazine-based frameworks via in situ derived bridging ligands for boosting photocatalytic hydrogen evolution

Ling-Ling Zheng; Xiang Li; Dengke Wang; Ying Chen; Qian Fu; Dai-She Wu; Xiao-Zhen Liu; Jian-Ping Zou

doi:10.1039/d4nr00289j

Selective anchoring of Pt NPs on covalent triazine-based frameworks via in situ derived bridging ligands for boosting photocatalytic hydrogen evolution

Nanoscale. 2024 Mar 21;16(12):6010-6016. doi: 10.1039/d4nr00289j.

Authors

Ling-Ling Zheng^{1

2}, Xiang Li^{2

3}, Dengke Wang², Ying Chen^{1

2}, Qian Fu^{1

2}, Dai-She Wu¹, Xiao-Zhen Liu¹, Jian-Ping Zou^{1

2}

Affiliations

¹ Key Laboratory of Poyang Lake Environment and Resource Utilization of Ministry of Education, School of Resources & Environment Nanchang University, Nanchang 330031, P. R. China. [email protected].
² National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang 330063, P. R. China.
³ Jiangxi Key Laboratory of Environmental Pollution Control, Jiangxi Academy of Eco-environmental Sciences and Planning, Nanchang 330063, P. R. China.

PMID: 38404219
DOI: 10.1039/d4nr00289j

Abstract

The efficient and stable production of hydrogen (H₂) through Pt-containing photocatalysts remains a great challenge. Herein, we develop an effective strategy to selectively and uniformly anchor Pt NPs (∼1.2 nm) on a covalent triazine-based framework photocatalyst via in situ derived bridging ligands. Compared to Pt/CTF-1, the obtained Pt/AT-CTF-1 exhibits a considerable photocatalytic H₂ evolution rate of 562.9 μmol g^-1 h^-1 under visible light irradiation. Additionally, the strong interaction between the Pt NPs and in situ derived bridging ligands provides remarkable stability to Pt/AT-CTF-1. Experimental investigations and photo/chemical characterization reveal the synergy of the in situ derived bridging ligands in Pt/AT-CTF-1, which can selectively anchor the Pt NPs with homogeneous sizes and efficiently improve the transmission of charge carriers. This work provides a new perspective toward stabilizing ultrasmall nanoclusters and facilitating electron transfer in photocatalytic H₂ evolution materials.