Fabrication of molybdenum (IV) sulfide – zeolitic imidazole framework-8 (MOS2 – ZIF-8) membranes supported onto alumina substrates for dye treatment in wastewater / Siti Mastura Abdul Rahman

In order for treatment of dye content in wastewater the research was studied using a method of membrane filtration technique. Instead of using conventional technology, membrane can withstand highly reactive solutions at various operating conditions. Composite membrane used with the combination of Molybdenum (IV) Sulfide and Zeolitic Imidazole Framework-8 (MoS2 – ZIF-8) was prepared using simple vacuum filtration technique. This membrane prepared undergoes two tests which are membrane test and adsorbent test. The concentration of methylene blue dye inlet and outlet was observed throughout the test. Two parameters observed which are contact time and concentration. Concentration of dye were varied for 10 mg/L, 20 mg/L and 30 mg/L. Compare for all three concentration, 30 mg/L of dye concentration seems produced highest efficiency of dye removal. This can be concluded that the higher the concentration the higher the efficiency of dye removal. Besides, the contact time were observed for every 10 minutes for 1 hour at three different suggested pressure 0.5 bar, 1.0 bar and 1.5 bar. The optimum contact time was observed at lowest pressure 0.5 bar with highest concentration of methylene blue dye solution.