Characterization and photocatalytic properties of Ru, C co-modified one-dimensional TiO2-based composites prepared via a single precursor approach
Source abstract
Abstract
With Ru3(CO)12 being used as precursor, Ru and C co-modified one-dimensional nano TiO2 composites (Ru–C/TiO2) were prepared by the single precursor approach. The composites were characterized with TEM, XRD, UV–Vis DRS, XPS, TG–DTA, ICP, and EA. TEM images showed that RuO2 nanoparticles, whose size was in the range of 3–7 nm, were uniformly dispersed on the surface of TiO2. XPS results revealed that the carbon in Ru–C/TiO2 calcinated in N2 atmosphere existed as active carbon and carbonate, and ruthenium existed as Ru4+ ions. The photocatalytic performances of products were evaluated by monitoring their catalytic activities for degradation of methyl orange solution under both UV and simulated sunlight irradiations. The influences of contents of ruthenium and carbon, calcination temperature and atmosphere on the photocatalytic activities of the composites were investigated. Obtained results showed that the Ru–C/TiO2 calcinated at 500 °C in N2 atmosphere exhibited higher photocatalytic activity than P25 under the same conditions.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Nanomaterials for catalytic reactions
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