The enhancement of CdS photocatalytic activity for water splitting via anti-photocorrosion by coating Ni2P shell and removing nascent formed oxygen with artificial gill
The enhancement of CdS photocatalytic activity for water splitting via anti-photocorrosion by coating Ni2P shell and removing nascent formed oxygen with artificial gill
复制标题
涂覆Ni2P壳并人工鳃去除初生氧，通过抗光腐蚀增强CdS光催化分解水活性
DOI：
10.1016/j.apcatb.2017.09.024
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发表时间：
2018-02
期刊：
影响因子：
--
通讯作者：
Gongxuan Lu
中科院分区：
文献类型：
--
作者：
Wenlong Zhen;Xiaofeng Ning;Baojun Yang;Yuqi Wu;Zhen Li;Gongxuan Lu
CdS光腐蚀严重阻碍了其在光催化特别是水裂解中的应用。本文报道了通过涂层Ni2P外壳和组装人工鳃去除水中新形成的o2来显著提高CdS抗光腐蚀性能的新策略。Ni2P@CdS催化剂在可见光照射下，无需添加任何牺牲试剂和贵金属负载，即可实现水的全面分解。与CdS本身相比，10Ni2P@CdS光催化剂具有优异的析氢活性（H2in 180 min为251.4 μmol），在430 nm处具有较高的AQE（3.89%）。该催化剂还具有高光电流，低过电位（- 0.32 VvsSCE）和长荧光寿命（16.27 ns）的激发电荷。ICP测量的Cd2+离子浓度和长期稳定性结果验证了Ni2P壳层在CdS上的抗光腐蚀作用。10Ni2P@CdS催化剂的活性和稳定性甚至优于典型的1Pt@CdS催化剂。我们的研究结果证实，如果通过保护涂层外壳抗光腐蚀和去除水中新生形成的氧来增强CdS的稳定性，CdS可以成为可见光下光催化水中制氢的活性催化剂。
CdS photocorrosion seriously impeded its application in photocatalysis, especially for water splitting. Here we report new strategies to improve CdS photocorrosion resistance properties significantly by coating Ni2P shell and assembling an artificial gill to remove newly formed O2from water. Ni2P@CdS catalyst can achieve the over-all water splitting under visible light irradiation without addition of any sacrifice reagent and noble metal loading. Compared with CdS itself, the 10Ni2P@CdS photocatalyst exhibits excellent photocatalytic activity for hydrogen evolution (251.4 μmol of H2in 180 min) with a high AQE (3.89% at 430 nm). This catalyst also presents high photocurrent, low overpotential (−0.32 VvsSCE), and long fluorescence lifetime (16.27 ns) of excited charges. Cd2+ions concentration measured by ICP and long term stability results verified the anti-photocorrosion role of Ni2P shell on CdS during water splitting reaction. The activity and stability of 10Ni2P@CdS is even superior to typical 1Pt@CdS catalyst. Our results confirm CdS can be an active catalyst for photocatalytic hydrogen generation from water under visible irradiation if its stability is enhanced by protection of anti-photocorrosion over-coating shell and removing the nascent formed oxygen from water.
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影响因子：
13.6
作者：
Muruganandham, M.;Swaminathan, M.
通讯作者：
Swaminathan, M.
DOI：
10.1016/0379-6787(89)90089-6
发表时间：
1989-09
期刊：
Solar Cells
影响因子：
--
作者：
M. Sharon;G. Tamizhmani;C. Lévy‐Clément;J. Rioux
通讯作者：
M. Sharon;G. Tamizhmani;C. Lévy‐Clément;J. Rioux
共核Pd@CdS纳米复合材料的制备作为可见光光催化剂，用于温和条件下的选择性转化
影响因子：
--
作者：
Nan Zhang;Siqi Liu;Xianzhi Fu;Yi-Jun Xu
通讯作者：
Yi-Jun Xu
影响因子：
15
作者：
Popczun, Eric J.;McKone, James R.;Schaak, Raymond E.
通讯作者：
Schaak, Raymond E.
影响因子：
5.4
作者：
Y. Xie;Hui Su;Xuefeng Qian;Xiaojing Liu;Y. Qian
通讯作者：
Y. Xie;Hui Su;Xuefeng Qian;Xiaojing Liu;Y. Qian