[논문]Facile synthesis of Bi2S3 nanosheet/Zr:Fe2O3 nanorod heterojunction: Effect of Ag interlayer on the change transport and photoelectrochemical stability

Mahadik, Mahadeo A.; Park, Jin Woo; Chae, Weon-Sik; Choi, Sun Hee; Chung, Hee-Suk; Cho, Min; Jang, Jum Suk

doi:10.1016/j.jiec.2018.10.031

[국내논문] Facile synthesis of Bi2S3 nanosheet/Zr:Fe2O3 nanorod heterojunction: Effect of Ag interlayer on the change transport and photoelectrochemical stability

Journal of industrial and engineering chemistry : JIEC, v.70, 2019년, pp.311 - 321

Mahadik, Mahadeo A. (Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University) , Park, Jin Woo (Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University) , Chae, Weon-Sik (Daegu Center, Korea Basic Science Institute) , Choi, Sun Hee (Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH)) , Chung, Hee-Suk (Analytical Research Division, Korea Basic Science Institute) , Cho, Min (Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University) , Jang, Jum Suk (Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Biore)

Abstract ▼ AI-Helper

Abstract In this work, the hydrothermal approach has been used to prepare and control the morphology of Bi2S3 nanosheet (NS)/Zr doped Fe2O3 nanorod (NR) heterojunction grown on fluorine doped tin oxide (FTO) phoptoelectrodes. The effect of morphology of Bi2S3 NS was examined by comparing the photocatalytic activity of Zr:Fe2O3 nanorod with synthesized heterojunctions. This novel heterojunction photoanode exhibits the light harvesting, the photoinduced electron–hole separation and yielding a maximum photocurrent density of ∼1.27mAcm−2 at −0.4V vs. Ag/AgCl under one sun illumination. Bi2S3 NS on surface of the Zr:Fe2O3 NR will act as the active material which shows the dramatic improvement in photocurrent generation. Further, effect of silver interlayer on the interface properties of Bi2S3 NS/Zr:Fe2O3 NR heterojunction was also studied. The results indicated that the silver interlayer reduces charge recombination at interface of Bi2S3 and Zr:Fe2O3. Also, the surface plasmon resonance of Ag and controlled morphology enhances the performance (1.5mAcm−2 at −0.4V) as well as improves the stability of Bi2S3/Zr:Fe2O3 heterojunction photoelectrode. This unique design of the nanoarchitecture provides an attractive pathway for the photogenerated electrons and the silver interlayers has great impact on enhancing charge separation and improving stability of photoanode. Highlights Bi2S3 nanosheet/Zr:Fe2O3 nanorod photoanodes were prepared first time via hydrothermal process. Morphology control of Bi2S3 sensitizer network led to enhanced light harvesting. Ag interlayer reduces the energy barrier at the interface of heterojunction and charge recombination’s. Unique design of heterostructure exhibits an attractive pathway for enhancing photoelectrochemical performance and stability. Graphical abstract Morphology controlled Ag nanoparticles bridged Bi2S3 anosheet/Zr:Fe2O3 heterojunction photoanode was successfully prepared through hydrothermal approach. Improved stability of the structure is due to the combination of SPR and synergistic effects of Bi2S3 anosheet and Zr:Fe2O3 nanorods. [DISPLAY OMISSION]

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[국내논문] Facile synthesis of Bi2S3 nanosheet/Zr:Fe2O3 nanorod heterojunction: Effect of Ag interlayer on the change transport and photoelectrochemical stability

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[국내논문] Facile synthesis of Bi2S3 nanosheet/Zr:Fe2O3 nanorod heterojunction: Effect of Ag interlayer on the change transport and photoelectrochemical stability

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