Jiang Xia, Chen Yan-Xin, Zhou Jing-Wen, Lin Shi-Wei, Lu Can-Zhong
CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, P. R. China.
ACS Omega. 2022 Aug 19;7(34):30495-30503. doi: 10.1021/acsomega.2c03949. eCollection 2022 Aug 30.
The unique electronic structure of rare-earth elements makes their modified semiconductor photocatalysts show great advantages in solar energy conversion. Herein, the pollen-like N, P self-doped biochar-based rare-earth composite catalyst (Er/LP-C) has been successfully synthesized, which combines the advantages of biochar and Er and is used for the first time in the field of photocatalytic hydrogen production from ethanol-water mixtures. Experimental results confirmed that the performance of photocatalytic hydrogen production under the full spectrum is up to 33.70 μmol/g in 6 h; this is due to the introduction of Er, which improves the carrier concentration, separation and transfer efficiency, and the driving force for the reduction reaction.
稀土元素独特的电子结构使其改性的半导体光催化剂在太阳能转换方面展现出巨大优势。在此，成功合成了花粉状氮、磷自掺杂生物炭基稀土复合催化剂（Er/LP-C），其兼具生物炭和铒的优势，并首次应用于乙醇-水混合体系光催化产氢领域。实验结果证实，该催化剂在全光谱下光催化产氢性能在6小时内可达33.70 μmol/g；这归因于铒的引入提高了载流子浓度、分离及转移效率，以及还原反应的驱动力。
