PREPARATION AND CHARACTERIZATION OF CROSS-LINKED CHITOSAN MEMBRANES ZINC AS AMOXICILLIN PHARMACEUTICAL WASTE ADSORBENT Rizki Nur Isnaini
Universitas Sebelas Maret
Abstract
This study aims to determine (1) Knowing how to synthesize Zinc crosslinked Chitosan membrane (2) To characterize Zinc crosslinked Chitosan membrane with Fourier Transform Infrared (FTIR), X-Ray Diffraction (XRD), and Scanning Electron Microscopy (SEM) ( 3)Knowing the adsorption effectiveness of Zinc crosslinked Chitosan membrane against amoxicillin waste with the effect of contact time (4) Knowing the effectiveness of Zinc crosslinked Chitosan membrane adsorption on amoxicillin waste with the effect of adsorbate concentration and (5) Knowing the maximum adsorption capacity of amoxicillin waste.
This study uses experimental methods in the laboratory.The working procedure in this study was to make a Zinc crosslinked Chitosan membrane with variations in the molarity of Chitosan and Zinc and oven it at a temperature of 500C for 14 hours. The membrane that has dried thencharacterized using FTIR, SEM and XRD. Then, meThe membranes were cut 2x2 cm and then contacted with amoxicillin waste using the batch method for a variation of time (15,30,45,60,90,120 minutes). The resulting solution was then filtered and the amoxicillin waste filtrate was obtained. The filtrate obtained lastcharacterized using a UV-Vis Spectrophotometer.
The results showed that: (1) Zinc crosslinked Chitosan membrane was successfully synthesized (2)Based on the results of FTIR characterization, there are hydroxyl groups (OH), carbonyl groups (CO), amine groups (-NH2) and interactions between N-Zn and O-Zn on the synthesized membrane. XRD characterization showed that the Zinc crosslinked Chitosan membrane had a semicrystalline structure. Zinc crosslinked chitosan membrane shows uneven and wavy surface morphology of the membrane(3) Chitosan MembraneZinc crosslinked has maximum adsorption effectiveness at contact time of 60 minutes(4) Chitosan MembraneZinc crosslinked has a maximum adsorption effectiveness value at a concentration of 60 mg/L and (5) The maximum adsorption capacity of Zinc crosslinked chi
