Affiliation: | 1. School of Science, Mae Fah Luang University, Tasud, Muang, Chiang Rai, Thailand;2. National Nanotechnology Center, Thailand Science Park, Klong Luang, Pathumthani, Thailand;3. Petroleum and Petrochemical College and Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Pathumwan, Bangkok, Thailand |