Electrodeposition of copper and iron oxides on to activated carbon fibre cloths: application to H2S and NH3 removal from air.
The present study concerns metal electrodeposition onto activated carbon fibre cloths (ACFC) for the treatment of odorous molecules such as hydrogen sulfide and ammonia. Characterizations of virgin, chemical impregnated and electroimpregnated carbon fibre cloths allowed the determination of the physical and chemical properties of such materials. Adsorption kinetics and isotherms in a batch reactor were carried out with non-impregnated and copper- or iron-impregnated ACFC. It was observed that differences in the metal deposit directly influenced the porous structure and elimination kinetics and capacities towards both odorous molecules. Compared to non-impregnated material, the adsorption velocities decrease in the case of chemically impregnated materials whereas they were similar when electrodeposition was used. Moreover, the maximal adsorption capacities were highest when metal was electrochemically deposited.
Ecole des Mines de Nantes, UMR CNRS 6144, Laboratoire GEPEA, 4 rue Alfred Kastler, BP 20722, 44307 Nantes cedex 03, France.
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D000327:Adsorption; D000393:Air Pollutants / Q000737:chemistry / Q000302:isolation & purification*; D000641:Ammonia / Q000737:chemistry / Q000302:isolation & purification*; D002244:Carbon / Q000737:chemistry*; D000077482:Carbon Fiber; D003300:Copper / Q000737:chemistry*; D004563:Electrochemistry / Q000379:methods; D005290:Ferric Compounds / Q000737:chemistry*; D006862:Hydrogen Sulfide / Q000737:chemistry / Q000302:isolation & purification*; D007700:Kinetics; D008855:Microscopy, Electron, Scanning
D000393:Air Pollutants; D000077482:Carbon Fiber; D005290:Ferric Compounds; C000499:ferric oxide; D002244:Carbon; D000641:Ammonia; D003300:Copper; C030973:cupric oxide; D006862:Hydrogen Sulfide