%0 Journal Article
%T 氨基酸辅助制备CaWO<sub>4</sub>空心球及吸附Pb<sup>2+</sup>性能<br>Amino Acid-Assisted Synthesis CaWO<sub>4</sub> Hollow Microspheres and Adsorption Property for Pb<sup>2+</sup>
%A 刘科麟
%A 丁津津
%A 王淼
%J Journal of Organic Chemistry Research
%P 299-305
%@ 2330-524X
%D 2024
%I Hans Publishing
%R 10.12677/jocr.2024.122027
%X 本论文以甘氨酸(Gly)为配体和结构导向剂，采用水热法制备了纳米微粒组装的直径约为4 μm的CaWO<sub>4</sub>空心球。SEM结果表明，氨基酸及反应时间对产物的形貌有重要影响。N<sub>2</sub>吸附–脱附结果表明，CaWO<sub>4</sub>空心球的BET表面积高达114.94 m<sup>2</sup>/g。原子吸收光谱结果表明CaWO<sub>4</sub>空心球对Pb<sup>2+</sup>有良好的吸附性质，与Langmuir吸附等温线拟合结果一致，最大吸附量为41.68 mg/g。CaWO<sub>4</sub>独特的中空结构和较大的比表面积赋予了CaWO<sub>4</sub>空心球在重金属吸附领域有广阔的应用前景。<br />
By using glycine as a ligand and structure-directing agent, nanoparticles-assembled CaWO<sub>4</sub> hollow microspheres with a diameter of 4 μm were prepared via a hydrothermal method. SEM results showed that the morphologies of the products were sensitive to the glycine and reaction time. N<sub>2</sub> adsorption-desorption results indicated that the BET-specific surface area of the CaWO<sub>4</sub> hollow microspheres was as high as 114.94 m<sup>2</sup>/g. The atomic absorption spectra results showed that the CaWO<sub>4</sub> hollow microspheres exhibited excellent adsorption properties for Pb<sup>2+</sup> adsorption, which was agreed with the Langmuir adsorption isotherm, and the maximum adsorption capacity was 41.68 mg/g. The unique hollow structures together with large specific surface areas might endow CaWO<sub>4</sub> hollow microspheres with wide application prospects in heavy metal ions removal.
%K CaWO<sub>4</sub>，空心球，Pb<sup>2+</sup>吸附，吸附剂<br>CaWO<sub>4</sub>
%K Hollow Microsphere
%K Pb<sup>2+</sup> Adsorption
%K Adsorbents
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=89867