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The sulfur dioxide adsorption on clinoptilolite-rich tuff from Bigadiç region of Western of Turkey and its modified forms (Na+, K+, Ca2+ and Mg2+) have been studied at 273 K and 293 K up to 100 kPa. The structural properties of clinoptilolites were studied by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR). The quantitative XRD analysis demonstrated that the Natural-B sample is mainly constituted by clinoptilolite (80–85%) with minor contents of quartz (7–8%), feldspar (5–6%) and mica-illit (4–5%). It was found out that the adsorption capacity and the affinity of SO2 with clinoptilolite samples depended mainly on the type of exchanged cations and decreased as Na-B > K-B > Mg-B > Natural-B > Ca-B for both temperature. These results show that clinoptilolite-rich zeolites are considered potentially good adsorbents for SO2 removal.
| Authors: | Meryem Sakizci, Burcu Erdoğan Alver, Ertuğrul Yörükoğullari | |
| Journal: | Adsorption | |
| Year: | 2011 | |
| DOI: | 10.1007/s10450-011-9352-4 | |
| Publication date: | 16-03-2011 |
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