文章基本信息

标题：Preparation of Fe3O4@SiO2@chitosan for the adsorption of malachite green dye
作者：Wen Jing Wang ; Qi Yao Cui ; Tang Qin 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：186
期号：3
页码：012014
DOI：10.1088/1755-1315/186/3/012014
语种：English
出版社：IOP Publishing
摘要：A novel magnetic adsorbent with chitosan-modified Fe₃O₄@SiO₂ nanoparticles were prepared for the removal of malachite green in aqueous solution. Fe₃O₄@SiO₂@chitosan was characterized by DLS and TEM. The difference among Fe₃O₄@SiO₂@chitosan, Fe₃O₄@SiO₂ and Fe₃O₄@SiO₂-NH₂ on the adsorption effect of malachite green was studied. The results were determined with ultraviolet spectrophotometry. Fe₃O₄@SiO₂@chitosan showed higher efficiency on the adsorption of malachite green compared with Fe₃O₄@SiO₂ and Fe₃O₄@SiO₂-NH₂. The removal efficiency of malachite green was 92% by Fe₃O₄@SiO₂@chitosan, while that of Fe₃O₄@SiO₂ and Fe₃O₄@SiO₂-NH₂ were 60% and 85%.