张利静

个人信息Personal Information

副教授

博士生导师

硕士生导师

性别:女

毕业院校:清华大学

学位:博士

所在单位:化学学院

学科:无机化学. 物理化学

办公地点:大连理工大学化工综合楼C402

联系方式:zhanglj@dlut.edu.cn

电子邮箱:zhanglj@dlut.edu.cn

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Direct 3D Printing of Reactive Agitating Impellers for the Convenient Treatment of Various Pollutants in Water

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论文类型:期刊论文

发表时间:2018-04-23

发表刊物:ADVANCED MATERIALS INTERFACES

收录刊物:SCIE

卷号:5

期号:8

ISSN号:2196-7350

关键字:3D printing; heterogeneous catalyst; structured catalyst; surface modification; water treatment

摘要:Mass transfer plays a key role in the diffusion-controlled heterogeneous reactions. Varied efforts have been made to design the structure of catalysts and reactors to optimize the diffusion process. Herein, a facile strategy is reported to construct highly reactive agitating impeller (denoted as AI) by employing 3D printing and a facile surface activation treatment. On the one hand, experimental results and numerical simulation analysis reveal that the 3D printing AI with appropriate structure can not only effectively eliminate external diffusion but also conveniently be separated from heterogeneous reaction systems. On the other hand, surface activation helps to significantly promote the chemical reactivity of AI for Fenton and galvanic replacement reaction, which are used to treat organic and inorganic pollutants in water, respectively. Benefiting from these cooperative merits, the integrated catalytic AI delivers a catalytic performance toward Fenton reactions as high as a homogeneous catalyst, and the removal rate for heavy metal ions is nearly 100% through galvanic replacement. This 3D printing with surface engineering strategy should also be extended to other applications, and provide new field for preparing efficient and durable heterogeneous catalysts in a more economical way.