EFEK WAKTU IRADIASI MICROWAVE TERHADAP KARAKTERISTIK ARANG PELEPAH DAUN NIPAH (Nypa fruticans) SEBAGAI ADSORBEN

Abstract

The aim of this study was to utilize nipa frond into activated carbon which is used as adsorbent. Nipa frond carbon made by carbonization at 400℃ for 1 hour. Nipa frond carbon activated by microwave at 600 W with various activation times (5, 10, and 15 minutes). The characterization results showed the best microwave irradiation time was 5 minutes, with the characterization result were 0.59% of water content; 13.53% of ash content; 592.7599 mg/g of iodine number; and 11.0804 mg/g of methylene blue number. Nipa frond carbon before activation and after activated for the best time by microwave characterized by SEM. The surface of nipa frond carbon before activation still covered with impurities. Then, the activation process by microwave cause damage to the pore structure. It concluded that the microwave irradiation time affects the quality of nipa frond carbon.