浓混酸改性碳纳米管涂层电极的电吸附脱盐探究.pdfVIP

47 1 Vol.47 No.1 2018 1 Applied Chemical Industry Jan.2018 ，，， （ ， 430081） ：H SO HNO （1∶1）、，PVDF（ 2 4 3 8∶2），。 ，， 5.75％，，、，； 40.39％。 ：；；；； + + ：TQ 028.1 5；TQ 127.1 1 ：A ：1671 －3206（2018）01 －0028 －05 Study on the electro-sorption desalination of carbon nanotubes coated electrode modified by concentrated mixed acid MA Li ，WANG Li ，FU Jiang -tao ，WANG Ze （College of Natural Resource and Environment Engineering，Wuhan University of Science and Technology，Wuhan 430081，China） Abstract ：The surface modification has been made to the commercial carbon nanotubes with concentrated sulfuric acid and nitric acid according to the volume ratio of 1∶1.Modified carbon nanotubes coated electrodes are prepared to study the desalination effect when the mass ratio of carbon nanotubes and PVDF is 8∶2.The result shows that the specific surface area of carbon nanotubes ，reducing by 5.75％；that the dispersion of carbon nanotubes is better ，namely，it can be suspended evenly in solution for a long time ， which is favorable for its uniform coating on the surface of electrode ；that the saturated adsorption capacity of carbon nanotubes coated electrode is increased 40.39％，after modification by concentrated mixed acid. Key words ：electro-sorption； carbon nanotubes ； concentrated mixed acid oxidation ； surface modifica- tion； desalination （EST） 、、、 ，、、 ， 。 ， ［3 ］ 。 ， ：（MSF）、（MED）、 。 （RO）、（ED）（IEX），RO 1 ，64％，MSF 1.1 （23％）、MED（8％）、ED（4％），EST IEX