科研之友
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摘要
Hydrogen peroxide (H2O2) is a promising energy carrier and an environmentally friendly oxidant which is widely used in industry and health fields including organic synthesis, drinking water treatment, wastewater treatment and medical hygiene. With the promotion of environmental protection requirements, the demand for H2O2 is expected to increase substantially. H2O2 production by the traditional anthraquinone method (AQ) has a tedious process and pollutes the environment with a large amount of organic matter. In contrast, photocatalytic H2O2 production technology is a green process which uses O-2 and H2O as raw materials, solar energy as energy source, and semiconductor as photocatalyst, with some distinct advantages, e.g, mild reaction conditions, simple and controllable operation, and no secondary pollution. Nowadays, the production of H2O2 via photocatalytic route has attracted extensive attention. This review introduces the mechanism of photocatalytic H2O2 production and the reasons for its low efficiency. The typical photocatalyst systems and strategies for enhancing photocatalytic efficiency in H2O2 production are intensively summarized and discussed. Finally, the perspective for the future development of photocatalytic H2O2 production is proposed.
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单位茂名学院
