Studi Adsorpsi-Fotodegradasi Zat Warna Sintetis, Alami, Air Limbah Industri Batik menggunakan Kitosan, Titanium Dioksida, dan Glass Beads termodifikasi Titanium Dioksida/Kitosan = Study of Absorption-Photodegradation of Synthetic, Natural, Batik Industrial Wastewater Dyes using Chitosan, Titanium Dioxide, and Glass Beads Modified by Titanium Dioxide/Chitosan