Sri Benti Etika, Edi Nasra
A This study discussed the effect of pH, contact times and concentrations on absorption of Cu (II) metal ions in the solution using C-Cinnamal Calix[4] Resorcinarena (CCCR). CCCR was synthesized through electrophilic substitution reaction of cinnamaldehyde isolated from cinnamon oil with resorcinol in an acidic atmosphere at 77 0C for 2 hours. Isolation of cinnamaldehyde from cinnamon oil produced 8.324 grams of cinnamaldehyde with a yield of 27.72% of 30 grams of cinnamon oil. The Absorption of Cu (II) metal ions in the solution by (CCCR) synthesized was carried out in a batch system with variation, i.e pH 2, 3, 4, and 5, contact time variations, i.e. 5, 15, 30, 60, 120, 150, 180 minutes and different concentrations which are i.e. 10, 20, 40, 60, 80, 100 mg / L. The optimum condition for the absorption of Cu (II) metal ions by CCCR was in pH 4 with 90 minutes of the contact time, and 80 ppm showing absorption capacity of 0.896 mg / g. © 2019 IOP Publishing Ltd.
Jurusan Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Negeri Padang, Indonesia, Jln. Prof. Dr.Hamka Air Tawar, Padang, Indonesia
