title: Ultrasonic preparation of nano-nickel/activated carbon composite using spent electroless nickel plating bath and application in degradation of 2,6-dichlorophenol.
abstract: Ni was effectively recovered from spent electroless nickel (EN) plating baths by forming a nano-nickel coated activated carbon composite. With the aid of ultrasonication, melamine-formaldehyde-tetraoxalyl-ethylenediamine chelating resins were grafted on activated carbon (MFT/AC). PdCl2 sol was adsorbed on MFT/AC, which was then immersed in spent electroless nickel plating bath; then nano-nickel could be reduced by ascorbic acid to form a nano-nickel coating on the activated carbon composite (Ni/AC) in situ. The materials present were carefully examined by Fourier transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscopy, X-ray photoelectron spectroscopy and electrochemistry techniques. The resins were well distributed on the inside and outside surfaces of activated carbon with a size of 120 ± 30 nm in MFT/AC, and a great deal of nano-nickel particles were evenly deposited with a size of 3.8 ± 1.1 nm in Ni/MFT. Moreover, Ni/AC was successfully used as a catalyst for ultrasonic degradation of 2,6-dichlorophenol.
authors.affiliation: Department of Application Chemistry of School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China. Electronic address: sujingyu2013@163.com.
authors.forename: Jingyu
authors.initials: J
authors.lastname: Su
authors.affiliation: Department of Application Chemistry of School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China. Electronic address: jgp@hfut.edu.cn.
authors.forename: Guanping
authors.initials: G
authors.lastname: Jin
authors.affiliation: Department of Application Chemistry of School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China.
authors.forename: Changyong
authors.initials: C
authors.lastname: Li
authors.affiliation: Department of Application Chemistry of School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China.
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Zhu
authors.affiliation: Department of Application Chemistry of School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Dou
authors.affiliation: Department of Application Chemistry of School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Application Chemistry of School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Application Chemistry of School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China.
authors.forename: Kunwei
authors.initials: K
authors.lastname: Wang
authors.affiliation: Department of Application Chemistry of School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China.
authors.forename: Qianqian
authors.initials: Q
authors.lastname: Gu
mesh_terms: D002244:Carbon / Q000737:chemistry*; D002733:Chlorophenols / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D036103:Nanotechnology; D009532:Nickel / Q000737:chemistry*; D014465:Ultrasonics
chemical_list: D002733:Chlorophenols; D002244:Carbon; D009532:Nickel; C032729:2,6-dichlorophenol
keywords: 2,6-Dichlorophenol; Activated carbon; Degradation; Nickel recovery; Ultrasonic