Chinese Journal of Catalysis ›› 2021, Vol. 42 ›› Issue (6): 1004-1012.DOI: 10.1016/S1872-2067(20)63717-2
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Khakemin Khana,b, Lifen Xua,b, Ming Shia,b, Jiangshan Qua,b, Xiaoping Taoa, Zhaochi Fenga, Can Lia, Rengui Lia,*()
Received:
2020-08-24
Accepted:
2020-09-11
Online:
2021-06-18
Published:
2021-01-30
Contact:
Rengui Li
About author:
*Tel: +86-411-84379698; Fax: +86-411-84694447; E-mail: rgli@dicp.ac.cnSupported by:
Khakemin Khan, Lifen Xu, Ming Shi, Jiangshan Qu, Xiaoping Tao, Zhaochi Feng, Can Li, Rengui Li. Surface assembly of cobalt species for simultaneous acceleration of interfacial charge separation and catalytic reactions on Cd0.9Zn0.1S photocatalyst[J]. Chinese Journal of Catalysis, 2021, 42(6): 1004-1012.
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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(20)63717-2
Fig. 1. (a) Schematic illustration of the functionalization of CZS nanorods for synthesizing hierarchical CZS@CoOx heterostructured nanorods; (b,c) FESEM images of CZS and CZS@CoOx; (d,e) TEM images of hierarchical CZS@CoOx nanorods; (f) HRTEM image of CZS@CoOx; (g) elemental mappings of individual CZS@CoOx nanorods.
Fig. 2. Structural and compositional characterizations of the photocatalysts. (a-e) High resolution XPS spectra of CZS@CoOx, (a) Cd 3d, (b) Zn 2p, (c) S 2p, (d) Co 2p, (e) O 1s; (f) XRD patterns of CZS and CZS@CoOx hierarchical nanorods.
Fig. 3. (a) Steady-state PL spectra of the CZS samples; (b) PL emission spectra and percentage quenching of CZS, CZS-CoOx, CZS/CoOx, and CZS@CoOx; (c) Open-circuit potential response curves of CZS, CZS-CoOx, CZS/CoOx, and CZS@CoOx; (d) EIS spectra of CZS CZS-CoOx, CZS/CoOx, and CZS@CoOx; (e) Transient photocurrent of CZS CZS-CoOx, CZS/CoOx, and CZS@CoOx; (f) Comparative photocatalytic H2 production activities of different CZS samples. Condition: catalyst, 100 mg; 0.10 M Na2S-Na2SO3 aqueous solution (100 mL); light source: Xe lamp (300 W) with an optical ?lter (λ ≥ 420 nm).
Fig. 4. (a) Photocatalytic H2 production activities of CZS based photocatalysts; Condition: catalyst 100 mg; 0.10 M Na2S-Na2SO3 aqueous solution (100 mL); Light source: Xe lamp (300W) with an optical ?lter (λ ≥ 420 nm). (b) Steady-state PL spectra of the samples; (c) PL emission spectra and percentage quenching of CZS, CZS@CoOx, and Pt/CZS@CoOx; (d) Open-circuit potential response curves of CZS, CZS@CoOx, and Pt/CZS@CoOx; (e) EIS spectra of CZS, CZS@CoOx and Pt/CZS@CoOx; (e) Transient photocurrent of CZS, CZS@CoOx and Pt/CZS@CoOx.
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