| 以橘子皮为碳源合成的CeO2@C及其对酸性染料去除性能 |
| CeO2@C Synthesized from Orange Peel as Carbon Source and Its Removal Performance for Acid Dyes |
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| 摘要: 以Ce(NO3)3·6H2O、橘子皮为原料，利用共沉积法制备氧化铈水合物与橘子皮混合物(CeO2·xH2O@OPP)，通过在N2中煅烧CeO2·xH2O@OPP获得CeO2@C复合材料。利用FT-IR、X射线衍射、扫描电镜、拉曼光谱、UV-Vis、X射线光电子能谱、光电流测试方法对合成材料进行了表征。结果表明，CeO2@C保留了较多的有机官能团，材料内具有较丰富的氧空穴及碳键，Ce、C、O元素均匀分布于材料内。光催化实验结果表明，在CeO2中引入碳有利于光生电子与空穴分离，提高光电流强度及光催化效率，且CeO2@C中碳含量对有机染料吸附及光催化效率影响较大。 |
| 关键词: 橘子皮 碳源 CeO2@C 合成 光催化 |
| 基金项目: 国家自然科学基金(No.21876158)资助 |
| Abstract: Using Ce(NO3)3·6H2O, orange peel as raw materials, aqueous ammonia as precipitant, CeO2·xH2O@OPP was synthesized via co-deposition method, and then CeO2@C composites were obtained by the calcination of CeO2·xH2O@OPP in N2. The resulted materials were characterized by FT-IR, X-ray diffraction, scanning electron microscope, Raman spectroscopy, UV-Vis, X-ray photoelectron spectroscopy, and photocurrent techniques. The results showed that Ce, C, O elements were evenly distributed in CeO2@C with many organic functional groups, abundant oxygen holes, and carbon bonds and that the organic functional groups in CeO2·xH2O@OPP, CeO2·xH2O, and CeO2@C were almost similar. The photocatalytic results illustrate that the introduction of C in CeO2@C is beneficial for the separation of photoelectrons and holes, and thus the improvement of photocurrent and photocatalytic efficiency and that the content of C in the resulted sample can greatly affect the adsorption and photocatalytic efficiency of organic dyes. |
| Keywords: orange peel carbon source CeO2@C synthesis photocatlysis |
| 投稿时间：2021-07-31 修订日期：2021-11-22 |
| 摘要点击次数: 1286 |
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| 肖忠连,伍轩逸,谭贺云,郝仕油.以橘子皮为碳源合成的CeO2@C及其对酸性染料去除性能[J].无机化学学报,2022,38(3):407-414. |
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