Issue 33, 2024

Enhanced PEC water splitting efficiency by type II heterojunction CdIn2S4/g-C3N4 photoanode construction

Abstract

The employment of catalysts to split water to create hydrogen is viewed as an effective solution to the energy crisis problem. In this work, type II heterojunction CdIn2S4/g-C3N4 nanocomposites with different mass ratios were successfully synthesised using a simple sonication technique. The results show that the constructed CdIn2S4/g-C3N4 heterojunctions exhibit better catalytic performance in the photoelectrocatalytic water splitting reaction, and the photocurrent density of the composite with a composite ratio of 15% reaches 0.35 mA cm−2 at 1.23 V (vs. RHE), which is a 2.33-fold enhancement relative to g-C3N4. The constructed heterojunction facilitates the photogenerated charge transfer between CdIn2S4 and g-C3N4, effectively accelerating the separation of photogenerated electrons and holes. This work provides theoretical guidance for efficient PEC water splitting technology.

Graphical abstract: Enhanced PEC water splitting efficiency by type II heterojunction CdIn2S4/g-C3N4 photoanode construction

Supplementary files

Article information

Article type
Paper
Submitted
12 Jun 2024
Accepted
16 Jul 2024
First published
05 Aug 2024

New J. Chem., 2024,48, 14624-14630

Enhanced PEC water splitting efficiency by type II heterojunction CdIn2S4/g-C3N4 photoanode construction

D. Liu, J. Liu, L. Wu, Z. Zhou, Z. Su, B. Yang and L. Feng, New J. Chem., 2024, 48, 14624 DOI: 10.1039/D4NJ02717E

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