ZnS-CdS/graphene oxide heterostructures prepared by a light irradiation-assisted method for effective photocatalytic hydrogen generation.
ZnS-CdS/graphene oxide heterostructures prepared by a light irradiation-assisted method for effective photocatalytic hydrogen generation.
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DOI：
10.1016/j.jcis.2015.01.051
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发表时间：
2015-05
影响因子：
9.9
通讯作者：
Xuewen Wang;Biao Yuan;Zi-Zheng Xie;Dongxue Wang;Rongbin Zhang
中科院分区：
文献类型：
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作者：
Xuewen Wang;Biao Yuan;Zi-Zheng Xie;Dongxue Wang;Rongbin Zhang
将氧化石墨烯(GO)纳米片引入到硫化锌-硫化镉异质结中，以提高光催化产氢能力。通过光辐射辅助的方法在GO纳米片表面形成了ZNS和CDS纳米颗粒。在这里，GO在硫化锌和硫化镉之间构建一条载流子传输通道，以增强协同效应。在紫外可见光或可见光照射下，ZnS-CDS/GO异质结均表现出较高的光催化产氢速率。负载铂纳米颗粒作为共催化剂后，所提出的异质结构的光催化产氢速率显著提高，在紫外可见光照射下最高可达1.68mmol.h−1。
Graphene oxide (GO) nanosheets are introduced to ZnS–CdS heterostructures to improve photocatalytic hydrogen generation. ZnS and CdS nanoparticles are formed on the surface of GO nanosheets via a light irradiation-assisted method. Here, GO construct a carrier transport channel between ZnS and CdS to enhance cooperative effects. The ZnS–CdS/GO heterostructures exhibit high photocatalytic hydrogen generation rates under either UV–visible or visible light irradiation. After loading of Pt nanoparticles as co-catalysts, the photocatalytic hydrogen generation rate of the proposed heterostructures is significantly improved to as high as 1.68 mmol h−1under UV–visible light irradiation.