| 초록 |
As technology develops, a demand for clean water has been continuously increased. The water utilized by industry is irreversibly contaminated by a wide variety of toxic chemicals such as heavy transition metals, radioisotopes and synthetic organics. Thus, there has been a large effort to remove such toxic chemicals. Examples include alginate, in which the abundant carboxyl group chelates metals, and activated carbon which is highly porous and therefore a good absorbent. We previously reported that polydopamine has the versatile coating ability on a wide range of substrate materials, which makes it an attractive candidate for various applications. Here, we demonstrate a simple and effective method of removing toxic chemicals from waste water. The polydopamine coated micro-size beads exhibit high absorbing capacities for various types of toxic chemicals: heavy metals(Cu, Cr, Hg and Pb), synthetic organics(4-aminopyridine and 4-methylbenxenethiol) and radioisotopes(Lutetium) |
