In:
Angewandte Chemie International Edition, Wiley, Vol. 59, No. 8 ( 2020-02-17), p. 3287-3293
Kurzfassung:
A universal sequential synthesis strategy in aqueous solution is presented for highly uniform core–shell structured photocatalysts, which consist of a metal sulfide light absorber core and a metal sulfide co‐catalyst shell. We show that the sequential chemistry can drive the formation of unique core–shell structures controlled by the constant of solubility product of metal sulfides. A variety of metal sulfide core–shell structures have been demonstrated, including CdS@CoS x , CdS@MnS x , CdS@NiS x , CdS@ZnS x , CuS@CdS, and more complexed CdS@ZnS x @CoS x . The obtained strawberry‐like CdS@CoS x core–shell structures exhibit a high photocatalytic H 2 production activity of 3.92 mmol h −1 and an impressive apparent quantum efficiency of 67.3 % at 420 nm, which is much better than that of pure CdS nanoballs (0.28 mmol h −1 ), CdS/CoS x composites (0.57 mmol h −1 ), and 5 %wt Pt‐loaded CdS photocatalysts (1.84 mmol h −1 ).
Materialart:
Online-Ressource
ISSN:
1433-7851
,
1521-3773
DOI:
10.1002/anie.201913600
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2020
ZDB Id:
2011836-3
ZDB Id:
123227-7
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