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2021, Volume 15, Issue 1

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Frontiers in Energy >> 2021, Volume 15, Issue 1 doi: 10.1007/s11708-021-0737-0

State-of-the-art progress in overall water splitting of carbon nitride based photocatalysts

. School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China.. International Research Center for Renewable Energy and State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China

Accepted: 2021-04-22 Available online: 2021-04-22
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Abstract

Converting solar energy into hydrogen (H ) by photocatalytic water splitting is a promising approach to simultaneously address the increasing energy demand and environmental issues. Half decade has passed since the discovery of photo-induced water splitting phenomenon on TiO photoanode, while the solar to H efficiency is still around 1%, far below the least industrial requirement. Therefore, developing efficient photocatalyst with a high energy conversion efficiency is still one of the main tasks to be overcome. Graphitic carbon nitride (g-C N ) is just such an emerging and potential semiconductor. Therefore, in this review, the state-of-the-art advances in g-C N based photocatalysts for overall water splitting were summarized in three sections according to the strategies used, and future challenges and new directions were discussed.

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