Metal–semiconductor double shell hollow nanocubes for highly stable hydrogen generation photocatalysts

Abstract

Noble metal–CdS double shell hollow nanocubes were synthesized by sequential four-step nanoscale reactions, including galvanic replacement, sulfidation, cationic exchange, and reduction. The photocatalytic H₂ generation using these hollow nanocubes indicated significant competition between electron transfer and electron–hole recombination, and showed remarkable stability against photocorrosion.