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Syed Irfan Ali

Leading speaker for catalysis conference 2017 - Syed Irfan Ali

Title: La and Mn co-doped BiFeO3 nanostructures with gyroid-like mesoporous network for improved photocatalytic activity

Syed Irfan Ali

Tsinghua University, China


Syed Irfan is a doctoral student in Material Sciences in the department of School of Materials Science and Engineering, Tsinghua University, Beijing, China. He is currently doing research under the kind supervision of Prof. Dr. Ce Wen Nan who is an eminent scholar worldewide. Recently, the author is doing research in semiconductor based nanstructures for photocatalytic applications. Syed Irfan brought up in Pakistan where he obtained his Masters in Applied Physics, mainly focusing on the applied material sciences.


The design of nanostructured materials and their corresponding morphologies have attracted tremendous attention because of their effectiveness in tuning electronic, optical, magnetic, and catalytic and mechanical properties. Although, many technologies have been explored to fabricate nanostructured materials such as templated synthesis, which is one of the most important approach to fabricate nanostructured materials however, the main drawback of the template-assisted synthesis of gyroid nanostructures, beside that the sacrificial templates make the procedure expensive, the removal of polymer template after fabrication becomes a key challenge that often involves the use of strong chemicals like HF. The gyroid is one of the famous nanostructure due to its infinitely connected periodic minimal surface and unique geometry. Herein, for the first time, we adopted a simple and cheap double solvent sol gel method for the fabrication of a well-ordered mesoporous nanostructure of La and Mn doped BFO with highly crystalline pore walls and a large internal surface area. This mesoporous nanostructure exhibits substantially higher photocatalytic activity than that of the non-porous BFO under UV-visible illumination. Moreover, the mesoporous nanostructure we obtained consisted of a gyroid-like network which illustrates the possibility of fabricating self-oriented template-free gyroid networks with improved application.

Audience Take away:

•    The audience will be able to continue the advances in the field for basic and applied research.
•    The unique synthesis route with improved photocatalytic application will open up new window towards cheap ways of making the product commercially available.
•    The current work will target different categories of the conference audience including the industrial representatives, academic researchers and students. For example, we have presented, for the very first time, template-free synthesis of gyroid network with mesoporous nanostructures which overcome the long-standing issue of synthesis of gyroid netwrok using complicated and expensive template route. The industry can take up our presented synthesis route to develop cheap product for consumables. Also, the academic researchers could extend the work presented here in a complete new direction for improving our presented synthesis and may continue it to fabricate other new efficient materials. Lastly, the student could find it interesting to do a project to study the reasons behind our successful fabrication technique for gyroid network and may enhance their vision on applications of gyroid network in other applications.