纳米ZnO/高岭土复合材料的制备及性能研究

功能材料, 2014, (5): 5024-5026. doi: 10.3969/j.issn.1001-9731.2014.05.005

纳米ZnO/高岭土复合材料的制备及性能研究

胡志彪 ^1, , 周云龙 ^2, , 张巧玲 ^3, , 童长青 ^4, , 陈武华 ^5, , 丁马太 ^6,

1.龙岩学院化学与材料学院,福建龙岩,364012

2.龙岩学院化学与材料学院,福建龙岩,364012

3.龙岩学院化学与材料学院,福建龙岩,364012

4.龙岩学院化学与材料学院,福建龙岩,364012

5.龙岩学院化学与材料学院，福建龙岩 364012; 厦门大学材料学院，福建厦门 361005

6.龙岩学院化学与材料学院，福建龙岩 364012; 厦门大学材料学院，福建厦门 361005

基金项目: 福建省青年人才资助项目(2007F3076) 福建省教育厅 A类资助项目(JA12318)

关键词：高岭土 , 甲基橙 , ZnO , 光催化降解

Preparation and photocatalytic degradation to methyl orange of kaolin supported nano-ZnO composite

Keywords： kaolin , methyl-orange , ZnO , photocatalytic degradation

用共沉淀法制备了纳米ZnO/高岭土复合材料，用XRD、SEM、EDX 等对其表征，并研究其对甲基橙的光催化降解.结果表明，该复合材料的最佳煅烧温度为500℃.其中的ZnO 为纤锌矿型结构，晶粒尺寸为31~58 nm.其对甲基橙的光催化降解符合一级动力学，且可多次重复利用.

In this paper,ZnO/kaolin composites characterized by XRD,SEM,EDX were prepared with co-pre-cipitation method.The photocatalytic degradation processes of methyl orange were studied.The results indicate that the structure of nano-ZnO was wurtzite-typed and the size of the grain was about 31-58 nm.The best tem-perature to calcinie the composite was 500 ℃.The photocatalytic degradation of methyl orange on the compos-ites fits in with the first-order kinetic order.They can be recycled too.

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