1. Enhanced photocatalytic reduction of CO2 by fabricating In2O3/CeO2/HATP hybrid multi-junction photocatalyst.
- Author
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Guan, Jingru, Wang, Huiqin, Li, Jinze, Ma, Changchang, and Huo, Pengwei
- Subjects
PHOTOREDUCTION ,PHOTOCATALYSTS ,PHOTOELECTROCHEMICAL cells ,PHOTOELECTROCHEMISTRY ,CERIUM oxides ,CRYSTAL structure ,INDIUM - Abstract
• In 2 O 3 /CeO 2 /HATP hybrid photocatalysts were successfully prepared. • Cerium oxide defect state effectively promotes the charge separation. • The as-prepared photocatalysts exhibit excellent yields for CO and CH 4 production. A series of novel porous indium (III) oxide (In 2 O 3) and nanocubic cerium oxide (CeO 2) loading HCl treated attapulgite (HATP) ternary photocatalysts were successfully synthesized. Simultaneously, all photocatalysts were performed the CO 2 reduction under UV-light. To explore the crystal structures, morphologies and electrochemical characteristics of as-synthesized samples, the XRD, SEM and TEM, and transient photocurrent techniques were performed in this work. Besides, as an optimized In 2 O 3 /CeO 2 /HATP sample presents the highest activity for CO (32.03 µmol/g) and CH 4 (16.94 µmol/g) yields, which is 6.11-fold and 6.78-fold times higher than those of pure CeO 2 under UV-light (8 W) irradiation. Schematic illustration of 10In/Ce/HATP-20 heterostructure for CO 2 photoreduction under UV-light irradiation. Image, graphical abstract [ABSTRACT FROM AUTHOR]
- Published
- 2019
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