Developing highly efficient and stable photocatalysts is an effective method to achieve COphotocatalytic reduction. Herein, PI/WOaerogel photocatalyst was prepared by chemical amide reaction coupled with an ethanol supercritical drying technique. The novel aerogel photocatalysts exhibit excellent photocatalytic performance for reducing COinto CO. In particular, PI/WO-10 aerogel photocatalyst shows the highest yield of CO (5.72mol gh), which is ca 11-fold higher than that of the pristine PI aerogel. The high COreduction activity can be attributed to the Z-scheme structure, which enhances the separation of photo-generated electronholes, and induces HO oxidation on WOnanosheets and COreduction on PI aerogel. The photocatalytic reaction mechanism of COwhen using PI/WOaerogel photocatalyst is proposed.
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