Abstract
AbstractIn this research, the steric effect of an exfoliation agent between n‐ethylamine and triethylamine for the fabrication of Ca2Nb3O10− nanosheet was investigated. The experimental results revealed that the different structures of the exfoliation agent have affected to fabrication of Ca2Nb3O10− nanosheet. The use of n‐ethylamine as an exfoliation agent gave a maximum exfoliation efficiency of 10 wt.% while the maximum exfoliation efficiency of triethylamine was 90 wt.%. The result showed that the difference in exfoliation efficiency was caused by the steric effect of exfoliation agents. The image of transmission electron microscopy exhibited Ca2Nb3O10− nanosheets which were formed by exfoliation of HCa2Nb3O10. Furthermore, the reaction time for liquid exfoliation was studied in this work. The reaction time at 4 h gave a maximum of exfoliation efficiency. The Ca2Nb3O10− suspension was tested capability to remove hazardous ions. After the experiment, we found the white precipitate which was the formation of CsCa2Nb3O10. The result showed that the Ca2Nb3O10− nanosheet was efficient for the removal of Cs+ ions in the wastewater.
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