Applications of RCW nano-sheet modified carbon felt material as cathode in degradation of CIP

A nanosheet and cathode technology, applied in the application field of degrading CIP, can solve uncommon problems and achieve the effect of preventing increase

Active Publication Date: 2020-01-07
TIANJIN UNIV
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Problems solved by technology

But Fenton-like reagents (such as Ce 3+ 、Cu + and Ni 2+ ) is not com

Method used

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  • Applications of RCW nano-sheet modified carbon felt material as cathode in degradation of CIP
  • Applications of RCW nano-sheet modified carbon felt material as cathode in degradation of CIP
  • Applications of RCW nano-sheet modified carbon felt material as cathode in degradation of CIP

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[0061] Reagents used in experiments: All chemicals were of analytical grade and no further purification was required.

[0062] Ciprofloxacin (C 17 h 18 FN 3 o 3 , purity ≥ 98%) was purchased from Alfa Aesar, UK; Na 2 SO 4 , FeSO 4 ·7H 2 O, Ce(NO 3 ) 3 ·6H 2 O and NaWO 3 2H 2 O was purchased from Shanghai Aladdin Co., Ltd., and they all belonged to analytically pure, with a purity ≥ 99.7%;

[0063] CF was purchased from the French Capone Roland Group, and methanol and phosphoric acid used as the mobile phase of HPLC were purchased from Sigma-Aldrich (American Life Science and High Technology Group Corporation).

[0064] Graphene oxide (GO) is synthesized from pure natural graphite by the improved Hummers method (W.S.Hummers, R.E.Offeman, Preparation of Graphitic Oxide.J.Am.Chem.Soc.80(1958) 1339-1339.).

[0065] Instruments used in the experiment: Scanning electron microscope (SEM) image and mapping analysis adopt SU8010 electron emission field-coupled X-ray energy...

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Abstract

The invention discloses applications of an RCW nano-sheet modified carbon felt material as a cathode in degradation of CIP. The preparation method of the RGO-Ce/WO3 nano-sheet modified CF material comprises: uniformly mixing a B1 solution and a B2 solution to obtain a solution B, dissolving graphene oxide in distilled water, and carrying out ultrasonic treatment for 1-2 h to form a suspension liquid so as to obtain a solution A; mixing and stirring the solution A and the solution B for 10-30 min to obtain a precursor solution, adding an HCl solution with a concentration of 2-3mol/L into the precursor solution in a dropwise manner, stirring for 10-30 min, then adding a (NH4)2SO4 solution with a concentration of 3-5mmol.L<-1>, stirring for 10-30 min, soaking CF into the obtained solution for10-30 min, taking out the CF after soaking, and calcining for 24 h at a temperature of 180 DEG C; and naturally cooling to a room temperature of 20-25 DEG C so as to obtain the RGO-Ce/WO3 nano-sheetmodified CF material. Compared with the traditional heterogeneous electro-Fenton technology, the technology of the invention has the following characteristics that RGO is used to replace carbon black,and no adhesive PTFE is used, so that the increase of electron transfer resistance and the coverage of active sites exposed on the surface can be prevented.

Description

technical field [0001] The invention belongs to the technical field of treating organic polluted wastewater, and in particular relates to the application of an RCW nanosheet modified carbon felt material as a cathode in degrading CIP. Background technique [0002] In recent years, since the residual antibiotics in aquatic ecosystems are becoming more and more harmful to the environment and human health, their removal has attracted much attention. Especially ciprofloxacin, which is widely used in the prevention and treatment of human and animal diseases, studies have shown that the content of ciprofloxacin in wastewater has reached 101g L -1 . Therefore, it is very important to find an effective method to remove CIP (ciprofloxacin) from the water environment. [0003] However, they are difficult to biodegrade and cannot be completely removed by conventional wastewater treatment methods. Therefore, we usually use the electric Fenton method, using iron as a catalyst, and its...

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Application Information

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IPC IPC(8): B01J23/30B01J37/10C02F1/461C02F1/72C02F101/34C02F101/36C02F101/38
CPCB01J23/30B01J23/002B01J35/0033B01J35/0013B01J37/10C02F1/4672C02F1/722C02F2305/026C02F2101/34C02F2101/36C02F2101/38Y02E60/50
Inventor 李轶韩晶晶李亚楠张素鸽
Owner TIANJIN UNIV
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