Abstract
The semiconductor photocatalytic technology is an important approach for solving the energy and environmental problems by only harnessing solar energy. Herein, we employ a facile hydrothermal method to prepare 3D flower-like Fe2O3/MoS2 heterostructures, which perform a high efficient photocatalytic property on photodegrading 20 mg/L methyl blue (MB) solution within 20 min, over 10 times of bare Fe2O3 nanoparticles. In addition, we first propose a surface modification method using amorphous Si-oxyhydroxides (SiOxH) as coating layer to protect the sulfide photocatalysts from corrosion in photo-Fenton reaction. As a result, the SiOxH-Fe2O3/MoS2 nanocomposites show good stability and high efficient decomposition behavior in photo-Fenton reaction, while the MoS2 nanosheets of as-prepared Fe2O3/MoS2 heterostructures without SiOxH modification have been almost all corroded away.
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