| 초록 |
The indium ion adsorption property of nickel nanoporous material on indium-tin oxide (ITO) etching waste water was investigated and compared for VSB-5, VSB-1, SAPO-34, Iron (Ⅲ) phosphate. VSB-5 exhibits the highest for total indium ion adsorption in the condition of 78.9 mg indium /1g of VSB-5 (7.9wt%) and 99.9 % was adsorbed in 50 ml of indium tin oxide waste water was used per 0.1g of adsorbent at 25℃ for 10 hours adsorption time. Desorption property of indium adsorbed VSB-5 was studied. Only indium rather than tin selectively desorbed in acidic media. Finally, indium aqueous solution could be obtained selectively, while tin still remain in VSB-5 structure. These results clearly show that VSB-5 with high BET surface area is very promising material for indium recovery. |
