| 个人简介 | |
|---|---|
 Prof. Laichang Zhang Edith Cowan University, Australia |
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| 标题： Functional application of iron-based metallic glasses in catalysis technology | |
| 摘要： The metallic glasses as new catalysts in industrial wastewater treatment have to compete with mature catalysts, such as iron ions/salts or zero valent iron (ZVI). Our research showed that using liquid metals as the catalysts exhibit many superior advantages compared to the conventional industrial catalysts. The superiorities can be concluded as ’eSEE’ (e-environmental, S-Sustainable, E-Economy and E-Efficiency. (E: Environmental) Compared to the current utilization of iron powders/salts/ions as catalysts in the industry (producing large amount of iron sludge), there is no additional cost on disposing secondary pollution, since no secondary pollution will be generated during the dye degradation by using liquid metals as catalysts; (S: Sustainable) Compared to the iron powders/salts/ions (hard to recycle and reused), the liquid metal having soft magnetic property exhibits ultra-sustainable and reusable capabilities for wastewater treatment (up to 30 times reusability without losing catalytic property).(E: Economy) Compared to the complicated manufacturing process of commercial iron powders, the glassy ribbon has been large-scale produced by melt-spinning method for many applications, the estimated price in the market is only a few dollars per kilogram. (E: Efficiency) Compared to the commercial iron powders (crystalline structure), the liquid metal catalyst in amorphous state presents 1000 times higher reactivity for dye degradation. The dye degradation (within 10 min) and mineralization (within 20 min) efficiency is ultrafast under optimum parameters control. The results suggest that the designed Fe78Si9B13 and Fe73.5Si13.5B9Cu1Nb3 MGs present a superior catalytic performance making them more desirable than the commercial used crystalline Fe-based catalysts. Therefore, this research demonstrates that through proper elemental and atomic structure design it is possible to develop new catalysts with favorable catalytic performance better than the current employed commercial catalysts for the industrial water treatment application | |
| 简介： Dr Lai-Chang Zhang is an Associate Professor and the Program Leader Mechanical Engineering and Materials Engineering in the School of Engineering at Edith Cowan University. After receiving his PhD in Materials Science and Engineering at the Institute of Metal Research, Chinese Academy of Sciences in 2005, Dr Zhang held several positions at The University of Western Australian, University of Wollongong, IFW Dresden and Technische Universität Darmstadt. He focuses the research on the 3D printing (via selective laser melting or electron beam melting), titanium alloys and composites, and processing-microstructure-properties in high-performance materials (such as nanomaterials, ultrafine-grained materials and metallic glasses). He is one of leading scholars in 3D printing, especially in titanium alloys. His work in 3D printing has been leading in alloy development suitable for 3D printing, processing optimization, microstructure characterization, mechanical properties, fatigue properties and corrosion resistance properties. Many work has been published in Acta Materials, Corrosion Science, Electrochemica Acta. Due to his leadership in 3D printing of titanium alloys, he has published several invited review papers on selective laser melting or electron beam melting of titanium alloys. | |
