Modification of Natural Zeolite with Fe(III) and Its Application as Adsorbent Chloride and Carbonate ions

12th Joint Conference on Chemistry

Suhartana^1 ; Sukmasari, Emmanuella^1 ; Azmiyawati, Choiril^1

Diponegoro University, Department of Chemistry, Semarang

50275, Indonesia^1

关键词: Adsorption capacities;    Adsorption tests;    Anion exchange capacity;    Carbonate anion;    Chloride anions;    ITS applications;    Natural zeolites;    UV-Vis spectrophotometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/349/1/012075/pdf
DOI  :  10.1088/1757-899X/349/1/012075

来源: IOP

【 摘 要 】

The aim of the research is to natural zeolite with Fe(III) using anion exchange process to improve the anion exchange capacity. Natural zeolite was activated using HNO31 N and then mixed with FeCl3solution and refluxed followed by oven and calcination at a temperature of 550°C. The influence of Fe(III) to zeolite was characterized by FTIR while presence of Fe in zeolite characterized by AAS. Zeolite and Zeolite-Fe adsorption capacity of chloride and carbonate anions were determined through adsorption test by variation of pH and contact time. In advanced, and then to determining the Fe adsorbed concentration at Zeolite using UV-Vis spectrophotometer. FTIR analysis result showed that the addition of Fe does not affect the zeolite's structure but change the intensity of the zeolite spectra. The Fe concentration in Zeolite-Fe of 714 mg L-1, indicate that Fe was present in the zeolite. Both Zeolite and Zeolite-Fe adsorbtion results showed that optimum pH of Chloride anion is 2, with adsorption capacity 2,33 x 10-3gg-1and optimum contact time is 8 minutes. While Zeolite and Zeolite-Fe adsorbtion results showed that optimum pH of Carbonate anion is 5, with adsorption capacity 5,31 x 10-3gg-1and optimum contact time is 8 minutes.