Sodium-Doped C3 N4 /MOF Heterojunction Composites with Tunable Band Structures for Photocatalysis: Interplay between Light Harvesting and Electron Transfer

Yating Pan; Dandan Li; Hai-Long Jiang

doi:10.1002/chem.201803555

Sodium-Doped C₃ N₄ /MOF Heterojunction Composites with Tunable Band Structures for Photocatalysis: Interplay between Light Harvesting and Electron Transfer

Chemistry. 2018 Dec 10;24(69):18403-18407. doi: 10.1002/chem.201803555. Epub 2018 Oct 2.

Authors

Yating Pan¹, Dandan Li¹, Hai-Long Jiang¹

Affiliation

¹ Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.

PMID: 30156036
DOI: 10.1002/chem.201803555

Abstract

The search for ideal model systems to investigate the role of different parameters in heterojunction composites for enhanced photocatalysis is a high-priority target. Herein, a series of heterojunction composites, namely Na_x -C₃ N₄ /Pt@UiO-66, being composed of UiO-66 and Na-doped g-C₃ N₄ with adjustable light absorbance and band structures, have been prepared with different Na contents, which exhibit a volcano curve towards photocatalytic H₂ production. Benefiting from the interplay of the two critical factors between light harvesting ability and electron transfer efficiency, the optimized Na_0.02 -C₃ N₄ /Pt@UiO-66 shows excellent photocatalytic H₂ production, far surpassing its corresponding single counterparts.

Keywords: electron transfer; g-C3N4; light harvesting; metal-organic frameworks; photocatalysis.

Abstract

Grants and funding