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Sulfur-doped anatase TiO2 nanoparticles with sulfur atoms occupying oxygen sites were realized by low-temperature hydrothermal oxidation of titanium disulfide (TiS2) with deionized water as the solvent. S doping can effectively narrow the bandgap of TiO2 due to the fact that S 3p level is higher than O 2p orbital. The large surface area caused by this doping method induces higher photocatalytic activity...
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