Unique three dimensional architecture using a metal-free semiconductor cross-linked bismuth vanadate for efficient photoelectrochemical water oxidation
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- 作者：Jingyang SuaAuthor Vitae ; Zhaowen BaiaAuthor Vitae ; Baoling HuangbAuthor Vitae ; Xie QuancAuthor Vitae ; Guohua Chena ; c ; d ; kechengh@ust.hk" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Solar water oxidation ; Bismuth vanadate ; Graphene ; Carbon nitride ; Photoelectrochemical
- 刊名：Nano Energy
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：24
- 期：Complete
- 页码：148-157
- 全文大小：2771 K
文摘
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Graphene linked carbon nitride (GCN) nanosheets were demonstrated as a sensitizer to modify BiVO4 for the first time.
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The sandwich-like GCN/BiVO4 photoelectrode exhibited 206% enhanced photoresponse compared with pristine BiVO4.
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Co–Pi/GCN/BiVO4 showed photocurrent density of 3.42 mA cm−2 at 1.23 V vs RHE under AM 1.5G with a photo-conversion efficiency of 1.28%.
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Computational simulations demonstrate strong donor-acceptor coupling between GCN sheets and porous BiVO4.