Experimentally incorporated Zr or Ti into the framework of MCM-41 could enhance the photocatalytic decomposition of H2O to H2. The hydrogen yield, for instance, on Zr-MCM-41 was about 7 mmol H2/hr-gZrO2. The enhancement of Zr-MCM-41 was over 80 times if compared to the bulk ZrO2. The Ti-MCM-41 also possessed an enhancement of about 17 times for the H2 yield (over TiO2).
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Liu et al. (2003) studied this question.
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