Ternary Monolithic ZnS/CdS/rGO Photomembrane with Desirable Charge Separation/Transfer Routes for Effective Photocatalytic and Photoelectrochemical Hydrogen Generation.,Chemistry - An Asian Journal

当前位置： X-MOL 学术 › Chem. Asian J. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Ternary Monolithic ZnS/CdS/rGO Photomembrane with Desirable Charge Separation/Transfer Routes for Effective Photocatalytic and Photoelectrochemical Hydrogen Generation.
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2019-09-18 , DOI: 10.1002/asia.201900978
Wanli Zhang ₁ , Siying Huo ₁ , Siyuan Yang ₁ , Yongming Zhong ₁ , Shengsen Zhang ₁ , Hongqiang Wang ₂ , Xinhua Zhong ₁ , Yueping Fang _{1,

2}

Affiliation

Highly efficient and easy recyclable monolithic photocatalysts with ideal separation/transport route for photogenerated charge carriers are much desired. In this work, a ZnO seed-induced growth approach is developed to fabricate a ternary monolithic photomembrane, that is, ZnS/CdS heterojunction nanorods in situ grow into the interspaces of multilayer reduced graphene oxide (rGO) sheets (denoted as ZnS/CdS/rGO). The monolithic ZnS/CdS/rGO photomembrane can serve as an efficient visible-light photoactive membrane for photocatalytic (PC) or photoelectrochemical (PEC) hydrogen generation. The fast electron transport of 1D CdS nanorods, the excellent electronic conductivity of multilayer stacked rGO sheets, the intense visible-light absorption of CdS, the unique hierarchical structure, and double heterojunctions (ZnS/CdS and CdS/rGO) efficiently boost the photogenerated electron-hole pairs separation and transfer across the interfacial domain of the photomembrane under visible-light irradiation. Furthermore, the superior stability and reusability of the photomembrane is achieved by the ideal process of photogenerated electron-hole pair separation/transfer, i.e., holes transfer to ZnS and electrons transfer to rGO to inhibit CdS from photocorrosion.

中文翻译：

具有有效电荷分离/转移途径的三元整体式ZnS / CdS / rGO光膜，用于有效的光催化和光电化学产氢。

非常需要具有用于光生电荷载体的理想分离/运输途径的高效且易于回收的整体式光催化剂。在这项工作中，开发了一种ZnO种子诱导的生长方法来制造三元整体式光膜，即ZnS / CdS异质结纳米棒原位生长到多层还原氧化石墨烯（rGO）片（表示为ZnS / CdS / rGO）。整体式ZnS / CdS / rGO光膜可作为有效的可见光光敏膜，用于光催化（PC）或光电化学（PEC）氢气的产生。一维CdS纳米棒的快速电子传输，多层堆叠的rGO薄片的出色电子传导性，CdS的强烈可见光吸收，独特的分层结构，双异质结（ZnS / CdS和CdS / rGO）在可见光照射下有效地促进了光生电子-空穴对的分离和跨光膜界面区域的转移。此外，通过光生电子-空穴对分离/转移的理想过程，即空穴转移到ZnS和电子转移到rGO以抑制CdS的光腐蚀，可以实现光膜的优异稳定性和可重复使用性。

更新日期：2019-09-18

点击分享查看原文

点击收藏

阅读更多本刊新发论文