Ag/polydopamine-coated textile for enhanced liquid/liquid mixtures separation and dye removal
Gan Miao,
Fangchao Li,
Zhongshuai Gao,
Ting Xu,
Xiao Miao,
Guina Ren,
Yuanming Song,
Xiangming Li,
Xiaotao Zhu
Affiliations
Gan Miao
School of Environmental and Material Engineering, Yantai University, Yantai 264405, China
Fangchao Li
School of Environmental and Material Engineering, Yantai University, Yantai 264405, China
Zhongshuai Gao
School of Environmental and Material Engineering, Yantai University, Yantai 264405, China
Ting Xu
School of Environmental and Material Engineering, Yantai University, Yantai 264405, China
Xiao Miao
Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252000, China
Guina Ren
School of Environmental and Material Engineering, Yantai University, Yantai 264405, China; Corresponding author
Yuanming Song
School of Environmental and Material Engineering, Yantai University, Yantai 264405, China
Xiangming Li
School of Environmental and Material Engineering, Yantai University, Yantai 264405, China
Xiaotao Zhu
School of Environmental and Material Engineering, Yantai University, Yantai 264405, China; Corresponding author
Summary: Engineering a versatile platform that enables to separate both oil/water and oil/oil mixtures and remove dye from water is not easy. To address this challenge, we have developed an Ag/polydopamine-coated textile (Ag/PDA@textile) by chemically depositing Ag particles on the textile surface using polydopamine as the binder layer. The obtained Ag/PDA@textile attracts water but repels oil in the air, underwater, and when immersed into the oil. Exploiting its water-attracting and oil resistance, the Ag/PDA@textile is acted as a separation membrane to separate oil/water mixtures with enhanced separation efficiency. The Ag/PDA@textile also possesses opposite wetting behavior to oils with different polarities, allowing it to separate oil/oil mixtures efficiently. Thanks to the catalytic performance of the Ag particle, organic dyes can be decomposed effectively by our Ag/PDA@textile under UV illustration or in the presence of NaBH4. Our Ag/PDA@textile may be valuable for applications in water purification and oil sewage treatment.
