ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this study, spherical activated carbons contained ZnS(Zn-SPAC) were successfullyprepared through carbonization/activation processes. Strong acid ion exchange resin as startingmaterial of Zn-SPAC was treated by 0.01 N zinc solution. Ion exchange treatment was performedfrom one time to three times for controling zinc content. The ion exchanged resins was activatedunder N2/H2O-vapor atmosphere at 900 °C for 0.5 hr following by carbonization treatment at 700 °Cunder N2 atmosphere. The Zn-SPAC samples were measured physicochemical characteristics such asX-ray patterns, SEM image, energy dispersive X-ray spectra, BET specific surface area, intensity andzinc content and used to remove humic acid(HA) in batch reactor for measuring photochemicalactivity. The X-ray patterns were appeared ZnS type. The Zn-SPAC had large BET specific surfacearea and their shape was spherical with a diameter about 350 ~ 400 μm. When the Zn-SPAC weredosed in UV reactor, the HA removal efficiency increased upto 60 % at 4hr. The order hand, the HAremoval 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 ofphotocatalyst for water purification
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.569.37.pdf
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