Han Jin, Li Kejian, Cheng Hanyun, Zhang Liwu
Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai, China.
Front Chem. 2017 Dec 12;5:114. doi: 10.3389/fchem.2017.00114. eCollection 2017.
A green photoelectrochemical (PEC) process with simultaneous SO removal and H production has attracted an increasing attention. The proposed process uses flue gas SO to improve H production. The improvement of the efficiency of this process is necessary before it can become industrial viable. Herein, we reported a Mo modified BiVO photocatalysts for a simultaneous SO removal and H production. And the PEC performance could be significantly improved with doping and flue gas removal. The evolution rate of H and removal of SO could be enhanced by almost three times after Mo doping as compared with pristine BiVO. The enhanced H production and SO removal is attributed to the improved bulk charge carrier transportation after Mo doping, and greatly enhanced oxidation reaction kinetics on the photoanode due to the formation of [Formula: see text] after SO absorption by the electrolyte. Due to the utilization of SO to improve the production of H, the proposed PEC process may become a profitable desulfurization technique.
一种同时去除SO并产生H的绿色光电化学（PEC）工艺已引起越来越多的关注。所提出的工艺利用烟道气中的SO来提高H的产量。在该工艺能够实现工业可行性之前，提高其效率是必要的。在此，我们报道了一种用于同时去除SO和产生H的Mo修饰的BiVO光催化剂。通过掺杂和去除烟道气，PEC性能可得到显著改善。与原始BiVO相比，Mo掺杂后H的析出速率和SO的去除率可提高近三倍。H产量和SO去除率的提高归因于Mo掺杂后体电荷载流子传输的改善，以及电解质吸收SO后在光阳极上由于形成[化学式：见原文]而大大增强的氧化反应动力学。由于利用SO来提高H的产量，所提出的PEC工艺可能成为一种有利可图的脱硫技术。
