These authors contributed equally to this work.
Photoreduction of Iron(III) to Iron(0) Nanoparticles for Simultaneous Hydrogen Evolution in Aqueous Solution
Article first published online: 2 JUL 2014
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 7, Issue 7, pages 1924–1933, July 2014
How to Cite
Wang, C.-J., Cao, S., Qin, B., Zhang, C., Li, T.-T. and Fu, W.-F. (2014), Photoreduction of Iron(III) to Iron(0) Nanoparticles for Simultaneous Hydrogen Evolution in Aqueous Solution. ChemSusChem, 7: 1924–1933. doi: 10.1002/cssc.201400065
- Issue published online: 28 JUL 2014
- Article first published online: 2 JUL 2014
- Manuscript Revised: 24 APR 2014
- Manuscript Received: 17 JAN 2014
- Ministry of Science and Technology. Grant Numbers: 2012DFH40090, 2013CB834804
- Natural Science Foundation of China. Grant Numbers: 21273257, 21267025, 21367026, U1137606, 2010CC007
- China Scholarship Council
- electron transfer;
Crystalline Fe nanoparticles were obtained with fluorescein (Fl) as the photosensitizer in triethylamine (TEA) or triethanolamine (TEOA) aqueous solution with FeCl3 as the Fe precursor under bright visible-light light-emitting diode (LED) irradiation. Photoinduced electron transfer from excited state Fl* and Fl− to Fe3+ produced the Fe nanoparticles, which served as the active catalyst for in situ photocatalytic hydrogen production with Fl and TEA or TEOA as the photosensitizer and electron donors, respectively, in the same system. Robust hydrogen production activities were observed under the Fe nanoparticle photoreduction conditions in basic solution, and tens of milliliters of hydrogen were obtained over prolonged LED irradiation. If inorganic support materials such as NH2-MCM-41 or reduced graphene oxide were introduced, dispersed nanoparticles with different sizes and shapes were deposited on the supports, which led to variously enhanced hydrogen production activities. The relationships between the morphologies of the Fe/H2N-MCM-41 or Fe/graphene composites generated in situ and the hydrogen production activities were investigated systematically.