Chang-Tang Chang is a Distinguished Professor in the department of Environmental Engineering and Director of the Energy and Nanotechnology Research Center at National I-Lan University. He obtained a Bachelors of Science in Civil Engineering from National Taiwan University, Taiwan and his Master of Science and doctoral degree in Environmental Engineering from National Taiwan University, Taiwan. He has over 25 years of research experience. He has published over 150 research papers in reputed peer-reviewed international journals. His research interest is in green energy and air pollution prevention and control. He has received several awards for excellence in research.