Synthesis of TiO2/Carbon Nanoparticle (C-dot) Composites as Active Catalysts for Photodegradation of Persistent Organic Pollutant

Dedri Syafei (Department of Chemistry, Bogor Agricultural University, Chemistry Building, Wing 1, 3rd Floor, Jl. Tanjung, IPB Darmaga Campus, Bogor 16680)
Sri Sugiarti (Department of Chemistry, Bogor Agricultural University, Chemistry Building, Wing 1, 3rd Floor, Jl. Tanjung, IPB Darmaga Campus, Bogor 16680)
Noviyan Darmawan (Department of Chemistry, Bogor Agricultural University, Chemistry Building, Wing 1, 3rd Floor, Jl. Tanjung, IPB Darmaga Campus, Bogor 16680)
Mohammad Khotib (Department of Chemistry, Bogor Agricultural University, Chemistry Building, Wing 1, 3rd Floor, Jl. Tanjung, IPB Darmaga Campus, Bogor 16680)

Indonesian Journal of Chemistry
Vol 17, No 1 (2017)

TiO2/C-dot composites were synthesised by sol-gel method and  investigated as catalysts for photocatalytic degradation of persistent organic pollutants (perchloroethylene, PCE). The composites photoluminescence properties was shown by visual analysis and the synthesis product was characterized by XRD, FTIR, fluorescence spectrophotometer, and UV-Vis spectrophotometer. Degradation of PCE 0.1% (v/v) in the aqueous phase was investigated under sunlight irradiation for 2 h. Photodegrade efficiency of PCE was determined by GC. Composites of TiO2/C-dot 2.5% (w/w) was succesfully to degrade PCE under sunlight irradiation and its photodegrade efficiency was up to 89.45%.