Degradation of direct red-81 and direct yellow-27 by photolysis with UV-light and solar irradiation using C-N-codoped TiO2

Alsyani, Lila (2016) Degradation of direct red-81 and direct yellow-27 by photolysis with UV-light and solar irradiation using C-N-codoped TiO2. Der Pharma Chemica, 8 (12). pp. 30-35. ISSN 0975-413X

Preview

Text 8._Jurnal_DPC-2016-8-12-30-35.pdf Download (963kB) | Preview

Abstract

Direct Red-81 (C28H19N5Na2O8S2) and Direct Yellow-27 (C28H19N5Na2O6S4) are non-biodegradable organic compound containing azo group and confirmed carcinogenic. Direct Red-81 and Direct Yellow-27 were degraded by photolysis method under 10 watt UV-light irradiation (λ=365 nm) and solar irradiationwith and without C-Ncodoped TiO2 catalyst. The dyes solution was analyzed\by UV-Vis spectrophotometer at λ 300-800nm. The optimum mass of C-N-codoped TiO2catalyst was 10 mg. From those methods, concluding solar irradiation method enhanced better degradation than UV-light irradiation, Direct Red-81 and Direct Yellow-27 were degraded 17.37 % and 8.72 % by solar irradiation and the degradation percentage increased to 75.63 % and 71.52 % by the addition ofC-Ncodoped TiO2catalyst for 120 minutes.

Actions (login required)

View Item