A study on the materials of smart barrier for selectively blocked TCE and TPH Jai-Young Lee, Seungjin Oh, Minah Oh, Woori Cho, Hyewon Park, Jeonghyeon Lee, Suhee Kim, Sanguon Jeong and Jinman Chang E3S Web Conf., 569 (2024) 11003 Published online: 19 September 2024 DOI: 10.1051/e3sconf/202456911003