Sponge electrode for pollutant degradation as well as preparation and application thereof

• Main Authors: WEI HANYU, SHOU LINGDI, GONG DAN, WANG QI, LONG YUPEI, ZHANG YI, WANG QIANG, LIU YU, WANG HUI, CONG YANQING
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2016
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a sponge electrode for pollutant degradation as well as preparation and an application thereof. A preparation method comprises steps as follows: (1) Ag nano-wire powder and KNO3 are added to distilled water, subjected to ultrasonic dispersion and then stirred for 2-3 h, and a Ag nano-wire solution is prepared; MWNTs (multi-wall nanotubes) and a surfactant are added to the distilled water and subjected to ultrasonic dispersion, and an MWNT solution is prepared; (2) a sponge electrode plate is impregnated in the MWNT solution firstly and then subjected to electro-deposition in the Ag nano-wire solution; (3) an electrode obtained in the step (2) is impregnated with an ethanol solution of TiO2, and the sponge electrode loaded with Ag nano-wires, the MWNTs and TiO2 is prepared through drying. Modified nanotube materials, namely, the MWNTs, are fixed on the sponge electrode with an impregnation method, then the surface of the sponge electrode is loaded with the Ag nano-wires and TiO2 through