| 第 51 卷第 2 期 |  | Vol. 51 No. 2 | | 2021 年 4 月 | Apr 2021 |
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所屬欄目：功能材料
可見(jiàn)光活性MIL金屬有機框架的制備及其光催化性能研究 |
| 彭 偉，吳道新，童海霞*，吳佳倫，籍 瑜，段夢(mèng)田，蔣崢瑾，劉 振
（長(cháng)沙理工大學(xué) 化學(xué)與食品工程學(xué)院，湖南 長(cháng)沙 410000） |
| 摘 要：采用溶劑熱合成法合成了八種Mofs光催化材料。以L(fǎng)a、Zr、Fe、Zn為金屬中心，對苯二甲酸（H2BDC）、2-氨基對苯二甲酸（H2ATA）為有機配體。通過(guò)XRD、SEM、TEM、Uv-vis DRS、FTIR、莫特肖特基測試對光催化劑進(jìn)行表征，考察了光催化劑的組成、晶型、形貌、禁帶寬度、元素含量、氧化還原電勢等性能，考察了可見(jiàn)光和紫外光輻照下光催化劑對苯酚的光催化氧化性能。結果表明，使用10 mg的H2ATA-La在可見(jiàn)光照下降解20 mg／L的苯酚溶液，8 h時(shí)降解率達97.45%。 |
| 關(guān)鍵詞：MOFs；光催化氧化；可見(jiàn)光 |
| 中圖分類(lèi)號：TQ460.6 文獻標識碼：A 文章編號：1009-9212（2021）02-0055-08 |
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| Preparation and Photocatalytic Performance of Visible Photoactive MIL Metal-organic Framework |
| PENG Wei, WU Dao-xin, TONG Hai-xia*, WU Jia-lun, JI Yu , DUAN Meng-tian, JIANG Zheng-jin, LIU Zhen
(School of Chemistry and Food Engineering, Changsha University of Science & Technology, Changsha 410000, China) |
| Abstract：In this paper, eight kinds of photocatalytic MOFs with La, Zr, Fe, Zn as metal centers, terephthalic acid (H2BDC) and 2-aminoterephthalic acid (H2ATA) as organic ligands were synthesized by solvothermalmethod.Thesephotocatalysts were characterized by XRD, SEM, TEM, UV-Vis DRS, FTIR and Motschottky tests. The composition,crystal form, morphology,band gap,element content and redox potential of the photocatalysts were investigated while the photocatalytic oxidation of phenol under visible and ultraviolet light irradiation was investigated. The results showed that the optimal degradation rate of phenol solution was of 97.45% after 8 h with 10 mg H2ATA-La under visible light illumination. |
| Key words：MOFs; photocatalytic oxidation; visible light |
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作者簡(jiǎn)介：彭 偉（1996—），男，湖南衡陽(yáng)人，碩士研究生，研究方向：光催化材料及應用。
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聯(lián) 系 人：童海霞，副教授，研究方向：光催化材料的制備及其應用研究，有機廢氣處理、材料的表面處理（E-mail：tonghaixia@126.com）。
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收稿日期：2021-03-21
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