Fig. 3: Synthesis and characterization of CeO2/Bi2S3 heterojunctions. | Nature Communications

Fig. 3: Synthesis and characterization of CeO2/Bi2S3 heterojunctions.

From: Integrating S-scheme photocatalysis with tandem carbonylation: A green and scalable strategy for CO2 valorization

Fig. 3

a Schematic diagram for the preparation of the CeO2/Bi2S3 heterojunctions (HMTA: hexamethylenetetramine, PVP: polyvinylpyrrolidone, EG: ethylene glycol). FESEM images of b pure CeO2 and c the CeO2/Bi2S3 heterostructure. d TEM image, EDX spectrum (inset) and e HRTEM image of the CeO2/Bi2S3 nanohybrid. f EDX elemental mappings of Ce, O, Bi and S elements in the CeO2/Bi2S3 composite. The high-resolution XPS data of g Ce 3d, h O 1s, i Bi 4f and S 2p of CeO2, Bi2S3 and the CeO2/Bi2S3 heterojunction.

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