Abstract：
:Na-A zeolite (Z-S1) was synthesized from scoria found on Jeju Island, Korea using the fusion/hydrothermal method. The influences of NaOH/scoria ratio, SiO2/Al2O3 molar ratio, and particle sizes on the synthesis of zeolite were studied by analyzing crystals morphology and crystallinity. According to XRD analysis, it was confirmed that the zeolitic materials were synthesized in the range of NaOH/Scoria ratio from 0.6 to 2.4. As the ratio of NaOH/Scoria increased from 0.6 to 1.2, the crystallinity of Z-S1 gradually increased from 8.85% to 57.53%, then became almost constant at 61.80% as the ratio of NaOH/Scoria exceeded 1.8. The particle size of the zeolite crystals tended to decrease with increasing the alkali content of NaOH/Scoria from 0.6 to 1.8. It was possible to synthesize tine crystals having the particle size about 1.0 ㎛ or less at a NaOH/Scoria ratio of 1.8. This study has shown that the fusion/hydrothermal method is a very effective technique for synthesizing Z-S1 from scoria and provides a potential application for obtaining commercial products from natural materials.
journal_name
Chemospherejournal_title
Chemosphereauthors
Lee MG,Park JW,Kam SK,Lee CHdoi
10.1016/j.chemosphere.2018.05.080subject
Has Abstractpub_date
2018-09-01 00:00:00pages
203-208eissn
0045-6535issn
1879-1298pii
S0045-6535(18)30922-6journal_volume
207pub_type
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