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Download fileDiethylenetriamine-Functionalized CdS Nanoparticles Decorated on Cu2S Snowflake Microparticles for Photocatalytic Hydrogen Production
journal contribution
posted on 2020-11-12, 16:06 authored by Xudong Li, Kai Dai, Chengsi Pan, Jinfeng ZhangConstructing
a cocatalyst-free semiconductor catalyst with high
catalytic efficiency has great significance to photocatalytic hydrogen
(H2) production. Herein, by incorporating diethylenetriamine
(DETA) into inorganic materials (CdS), an organic–inorganic
hybrid, CdS-DETA (CD), and a snowflake-like Cu2S p–n
heterojunction were designed by the hydrothermal synthesis method.
The photocatalytic H2 generation rate of Cu2S/CD (CU/CD) can reach 9.00 mmol·g–1·h–1, which is 1.25, 5.03, and 6.12 times higher than
that of H2 produced by Pt/CD, CD, and CdS nanorods (CdS
NRs), respectively. Under the action of the organic molecule DETA,
the photocorrosion of CdS is effectively inhibited. The Cu2S snowflakes and the organic–inorganic hybrid CD tight-contact
interface and the p–n heterojunction improve the charge separation
efficiency in the composite and enhance the photocatalytic activity.
This work designed a type of photocatalyst heterojunction to provide
an effective strategy for turning solar energy into a green and clean
energy.
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Diethylenetriamine-Functionalized C...Cu 2 S snowflakesCD tight-contact interfaceheterojunctionH 2Cu 2 S Snowflake MicroparticlesDETAhydrothermal synthesis methodNRphotocatalytic H 2 generation rateCUPhotocatalytic Hydrogen Production ...cocatalyst-free semiconductor catalystcharge separation efficiency