ABSTRACT: Study about the use
of active charcoal rice straws (AAJP) was done in order to decrease heavy metal
ion on textile waste water by using photocatalyst AAJP/TiO2. Rice straws were
gained from the Banyumas Regency and samples textile waste water from one of
textile industry in Pemalang. This study was begun by the making of active
charcoal from the rice straws, and then the modification of photocatalyst
AAJP/TiO2 was done with the comparison 1:99, 2:98, 3:97, 4:96, 5:95. The test
of heavy metal ion photoreduction was done with some parameters such as weight
comparison (1:99, 2:98, 3:97, 4:96, 5:95), pH effect (2, 5, 7, 9, 13) and the
effect of ray source (sun light and the UV lamp). Analysis of photocatalyst
material used SEM and heavy metal ion concentration used AAS. Results show that
optimum photocatalyst activity in weight comparison AAJP300oC / TiO2 (1:99)
with decrease concentration was 65.02% for heavy metal ion, mean while
AAJP700oC / TiO2 (3:97) with decreased concentration of heavy metal ion is
94.50%. Optimal process for heavy metal ion reduction occur at pH 2 with
decreased concentration of heavy metal ion for AAJP300oC / TiO2 (1:99) is
99.87% and for AAJP700oC /TiO2 (3:97) is 100%. The source of UV lamp was good
for heavy metal ion photoreduction (AAJP300oC/TiO2(1:99) was 99.87% and
AAJP700oC/TiO2 (3:97) was 100%)
Keyword: photocatalyst, TiO2, active charcoal, heavy
metal ion
Penulis: Kapti Riyani, Tien
Setyaningtyas, Roy Andreas
Kode Jurnal: jpkimiadd080019
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