Photocatalytic Activity of CuBDC and Ui0-66 Metal-Organic Frameworks for Methyl Orange Degradation

• Main Author: Haryanto, Andi
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/38613
• Institution: Institut Teknologi Bandung

Dyes used in textile industry contain organic compound that caused water pollution. Photo-degradation method was commonly used for dyes degradation to decrease water pollution. Metal oxide was widely used as photocatalyst for organic pollutant degradation in water. Nevertheless, metal oxide had wide band gap and fast charge (hole and electron) recombination time so the photocatalytic activity was decreased. Metal-Organic Frameworks (MOFs) had been used as alternative photocatalyst. MOFs was a complex molecule with organic ligand which built cluster so that could decrease the recombination time and lower band gap. The photocatalytic activity ofCuBDC and Ui0-66 MOFs was investigated by determining the degradation rate of methyl orange (MO) under visible and UV light. CuBDC and Ui0-66 MOFs had been synthesized successfully by solvothermal method and characterized with Powder X-Ray Diffraction (PXRD) to phase identifiaction also UV-vis Diffuse Reflectance Spectra (UV-vis DRS) to calculate the band gap. Degradation percentage ofMO with CuBDC in visible and UV light were 3.6 and 3.3 % in 40 minutes respectively. While degradation percentage ofMO with Ui0-66 in visible and UV light were 6.6 and 56.7 %in 40 minutes. Sodium borohydride (NaBH4) addition to CuBDC surprisingly gave the degradation percentage ofMO up to 91 % in 2 minutes. Meanwhile, NaBH4 addtion to Ui0-66 did not give any significant change. It was found that CuBDC had a better photocatalytic performance than Ui0-66 by NaBH4 addition.