Sunlight Assisted Degradation of Linear Alkylbenzene Sulfonate by Floating Catalyst TiO2-Coconut Fiber

The increasing number of laundry businesses in Pontianak causes increased waste, which is dangerous for health and the environment because anionic surfactants such as Linear Alkylbenzene Sulfonate (LAS) are hard degradable. Photocatalyst a method that can be used to degrade LAS structure. TiO2 carried coconut fiber optimize sunlight irradiation degrading content when light reaches water's surface. This study aims determine characteristics optimum activity time photocatalyst TiO2-coconut LAS. characterization was out using XRD, XRF, DR-UV, while test photocatalysts UV-Vis spectrophotometer. XRD diffractogram analysis showed peaks at 2θ = 22.2º, 34.8º 25.3º, 37.8º, 48.1º, 55.1º, 62.1º. attached after being synthesized 21.12%. band gap 3.21 3.18 eV, with absorption 386.5 390.3 nm. mass ratio 20:80; 30:70; 40:60, 50:50 w/w range 0, 30, 60, 90, 120 minutes. results photocatalysis 20:80 photocatalytic minutes highest degradation rate 80.43%. research expected applied an alternative handling industry waste.