Sintesis dan Karakterisasi Karbon Aktif dari Ampas Teh Ditinjau dari Waktu dan Suhu Karbonisasi

Abstract

Tea waste is the waste that produced from making tea drinks. Tea waste has not been exploited maximally. Tea waste processing as activated carbon is one of an easy way to add the economic point. Activated carbon exploit deep prodigious industrial area, amongst these as an adsorbent, catalyst, filtering auxiliary materials etc. The quality of activated carbon depends on the carbonation process, one of which is temperature and time of carbonation. In this research, the carbonation temperature which is used is 400, 500, 600, 700, and 800°C and the time is 1; 1,5; 2; 2,5; and 3 hours. The impregnation process is carried out using H3PO4 30% with a ratio of carbon: H3PO4 is 1:4 (%, w/w for 24 hours). On this research can be concluded that the best result of % yield at temperature of 400°C was 27,5% and 1 hours was 15,13%. The result of the best-activated carbon which is on carbonation at temperature of 800°C during 2 hours. The characterization result uses Fourier Transform Infra-Red (FT-IR) showed that the activated carbon-containing carbon groups (C-H, C=C and C C) which are increasingly visible and non-carbon groups (OH) was disappearance. The result of activated carbon obtained is strengthened by the XRD result which showed similarities with standard activated carbon.