Prof. Wallace Leung, a fellow of AICHE, ASME, HKAES, HKIE, and AFS, is Chair Professor in Hong Kong Polytechnic University for 13 years. He has completed his ScD from MIT. He has also worked in US industry for 25 years. Prof. Leung’s current research interest are nanofiber technologies as applied to nano-aerosol filtration, dye sensitized solar cells, perovskite solar cells, photocatalysis, hydrogen production from water splitting, and tissue scaffolding. He has invented many technology platforms in the above sectors having a total of 47 issued United States patents and 30 scientific papers published on nanofibers covering energy and environment