Open AccessPENGGUNAAN MATRIKS PENDUKUNG (SILIKA GEL) PADA TANAMAN KAYU APU (pistia stratiotes. l) SEBAGAI BIOSORBEN UNTUK MENGURANGI TINGKAT PENCEMAR ION TIMBAL (Pb2+)
Author(s) -
Sri Haryati,
Elva Yasmi,
Erviyenni
Publication year - 2015
Publication title -
jurnal riset kimia
Language(s) - Uncategorized
Resource type - Journals
eISSN - 2476-8960
pISSN - 1978-628X
DOI - 10.25077/jrk.v3i2.80
Subject(s) - pistia , stratiotes , silica gel , adsorption , nuclear chemistry , materials science , chemistry , chromatography , biology , organic chemistry , aquatic plant , ecology , macrophyte
ABSTRACT Problems of environmental became one of problem must be interested by public, One of them was the stain by ion lead (Pb2+). An experiment was conduct about the use of “Kayu Apu” (Pistia Stratiotes. L) as ion Pb2+ adsorbents before and after added supporting matrix (silica gel). This experiment worked with static method. The parameters were examined carefully: pH (2, 4, 6, 8, and 10), concentrate (10, 25, 50, 75, and 100 ppm), and contacted time (15, 30, 45, 60, and 75 minutes). pH, concentrate, and contacted time optimum for “Kayu Apu” before using supporting matrix (silica gel) successively 6, 50 ppm, 30 minute, with the adsorbtion efficiency: 89.16%. Besides, pH, concentrate, and contacted time optimum after using supporting matrix (silica gel) successively 4, 50 ppm, 45 minute, with the adsorbtion efficiency: 97.47%. Biomaterial of “Kayu Apu” has been given supporting matrix (silica gel) more efficiently than without supporter matrixs for adsorbing ion Pb2+.Keywords: pistia Stratiotes. L, biosorbent, silica gel, Pb2+