TY - GEN
T1 - Physicochemical characteristics of ZnS immobilized on spherical activated carbon for removing HA(humic acid)
AU - Lee, Joon Jae
AU - Suh, Jeong Kwon
AU - Hong, Ji Sook
AU - Lee, Jung Min
AU - Park, Jin Won
PY - 2008
Y1 - 2008
N2 - In this study, spherical activated carbons contained ZnS(Zn-SPAC) were successfully prepared through carbonization/activation processes. Strong acid ion exchange resin as starting material of Zn-SPAC was treated by 0.01 N zinc solution. Ion exchange treatment was performed from one time to three times for controling zinc content. The ion exchanged resins was activated under N 2/H2O-vapor atmosphere at 900°C for 0.5 hr following by carbonization treatment at 700°C under N2 atmosphere. The Zn-SPAC samples were measured physicochemical characteristics such as X-ray patterns, SEM image, energy dispersive X-ray spectra, BET specific surface area, intensity and zinc content and used to remove humic acid(HA) in batch reactor for measuring photochemical activity. The X-ray patterns were appeared ZnS type. The Zn-SPAC had large BET specific surface area and their shape was spherical with a diameter about 350 - 400 μm. When the Zn-SPAC were dosed in UV reactor, the HA removal efficiency increased upto 60 % at 4hr. The order hand, the HA removal efficiency by only UV-C(λmax = 254nm) irradiation was not good about 15 %. Therefore, we infer that the Zn-SPAC have good photochemical activity and presented possibility of photocatalyst for water purification.
AB - In this study, spherical activated carbons contained ZnS(Zn-SPAC) were successfully prepared through carbonization/activation processes. Strong acid ion exchange resin as starting material of Zn-SPAC was treated by 0.01 N zinc solution. Ion exchange treatment was performed from one time to three times for controling zinc content. The ion exchanged resins was activated under N 2/H2O-vapor atmosphere at 900°C for 0.5 hr following by carbonization treatment at 700°C under N2 atmosphere. The Zn-SPAC samples were measured physicochemical characteristics such as X-ray patterns, SEM image, energy dispersive X-ray spectra, BET specific surface area, intensity and zinc content and used to remove humic acid(HA) in batch reactor for measuring photochemical activity. The X-ray patterns were appeared ZnS type. The Zn-SPAC had large BET specific surface area and their shape was spherical with a diameter about 350 - 400 μm. When the Zn-SPAC were dosed in UV reactor, the HA removal efficiency increased upto 60 % at 4hr. The order hand, the HA removal efficiency by only UV-C(λmax = 254nm) irradiation was not good about 15 %. Therefore, we infer that the Zn-SPAC have good photochemical activity and presented possibility of photocatalyst for water purification.
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U2 - 10.4028/0-87849-472-3.37
DO - 10.4028/0-87849-472-3.37
M3 - Conference contribution
AN - SCOPUS:45749116936
T3 - Materials Science Forum
SP - 37
EP - 40
BT - Eco-Materials Processing and Design IX - Selected, peer reviewed papers from 9th International Symposium on Eco-Materials Processing and Design
PB - Trans Tech Publications Ltd
T2 - 9th International Symposium on Eco-Materials Processing and Design
Y2 - 7 January 2008 through 9 January 2008
ER -