Page 6 - EIE Network 2018/2019
P. 6

Interview





           There are so many opportunities to explore and capture and so   Making Use of Spinning
           many new horizons to reach.  His menu for the future of the
           Department is to develop innovative research and products   CDs to Clean Sewage Water
           that:
                                                                   Back in 2013, Prof. Tsai asked his class to turn garbage
           •  no one has done before,                              into something useful by deploying photo-analytic
           •  are useful and interesting,                          process.  His students picked CDs, billions of which were
           •  can be used immediately,                             about to be thrown away with the rise of streaming media
           •  use less energy, material and space, and             and other means of data storage.
           •  are compatible, portable, adaptable to human bodies.
                                                                   The team created a device using the large surface area
                                                                   of optical disks as a platform to grow tiny, upright zinc
                                                                   oxide nanorods which functioned as photocatalysts,
                                                                   breaking apart organic molecules in sewage water when
                                                                   illuminated with UV light.  The project was presented at
                                                                   the Optical Society’s (OSA) Annual Meeting in 2013 and
                                                                   received enquiries and press attention from more than 20
                                                                   countries.











               A new place to  nd family
               roots



           Hong Kong is definitely “new” for Prof. Tsai.  The longest stay he
           has had in the city has lasted only for five days.  When thinking
           about living in Hong Kong, the first thing that comes to his mind
           is the left-hand traffic. It is completely the opposite to that in
           Taiwan and North America.  “I think I won’t drive in Hong Kong.”

           Another thing is the language. The majority of people in
           Hong Kong speaks Cantonese. So in order to have better
           communication with local people, he already has a plan.  “My
           wife and I are interested in learning the dialect.  We will hire a
           private tutor to teach us both.”  He is confident that he can learn
           quickly, based on the experience of a professor friend who can
           speak fluent Cantonese after one year of private tuition.  There
           is another reason why he is so confident.
           Prof. Tsai’s family is originally from Guangzhou. The family had
           been moving around different provinces and cities including
           Guizhou, Hunan and Hong Kong during World War II and finally
           settled in Taiwan in 1950. His grandfather had a job at a
           shipping company in Hong Kong and sailed abroad. His
           grandmother used to take his father (who was about eight years
           old then) by boat from Guangzhou to Hong Kong every few
           months to collect the salary. When stopping by Hong Kong,
           his grandmother would buy his father ice cream. His father
           always said it was the best ice cream he had ever had, up until
           four years before his death at the age of 99.

           He is now eagerly looking forward to “returning to the roots” and
           immersing himself in the stories and culture of his family.



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