Nghiên cứu khả năng phân hủy para nitrophenol khi có mặt tio2 tẩm trên than hoạt tính

Tgp c h i p h a n tich Hda, Ly u a S i n h hoc - T @ p13, S6'112008 NGHIEN c I KHA ~ NANG PHAN HU$' PARA-NITROPHENOL KHI co M&T TiO, TAM TREN THAN HOAT T ~ N H DOn toa soan I2 - - 2008 Nguy& Thi B i c h L e c Khoa Hoa hoc - T r U h g Dai hoc Khoa hoc T g nhi@n- DHQGHN C a o Th6' Ha Trung trim CETASD, TrUting Dai hoe Khoa hoc T g n h i h - DHQGHN SUMMARY STUDY ON PARA-NITROPHENOL DECOMPOSITION USING TiO, COATED GAC The ultimate goal of this research is to combine the adsorptive properties of activated carbon with the oxidative properties of titanium dioxide, aphotocatalyst, i n order to prepare a regenerated photocatalytic-adsorptive material The promise is that the,activated carbon, coated with TiO,, would capture the organic components owing to the conventional adsorption When the adsorptive capacity of carbon becomes exhausted, it can be in situ regenerated by using the W lamps for activating the photocatalyst This paper presents the comparative results of the adsorptive oxidative capacities of two types of commercially available activated carbon with loadings of and 10% of TiO, (wlw) I ~d DAU quan tam n h i h n h h va c6 ung dyng rang r8i Hien nay, cung vCTi su phat trikn manh me cua Nhung ca hai cong nghe trSn d$u c6 mat han khoa hoc ky thu$t, ngiy c h g c6 nhi&uchat hhiru c o chk m i nku co thk ph6i k i t hpp nhirng nigt han c h i doc hai duac thai vao mbi truang, anh huimg ay lai thi s& k h k phyc dugc nhirng nhugc di$m c ~ i a nghi&m tbi ngubi va h& sinh thbi C rht cd hai p h u m g phap nhiku ngubn nuirc thii c6ng nghi@pc6 chua Chung ta d% bikt, nhb kha nang h i p phy cao, cac hqp chit hhiru c o g i y n h i h m6i trubng than hoat tinh c6 th& loai bo dz d i n g cac chat hiru loqi bo cac chit hhiru c o khoi nuac c6 rat nhiku c o mbi truimg nhung lai khbng phin htiy p h u m g phap thu@ vao loqi chit hhiru co, muc chung, va dkn s u h i p phu dat b8o hoa nguai ta d x u 19 vB di&u kien thvc t & ~ r o n g s6 cac phai chi phi d& xir Iy lupng than dB qua sir dung p h u m g phap nay, vigc sir d p g cbng nghe k p phv Cbn d6i vui ky thugt quang h6a x ~ i cthc, chling va c L qua trinh phin hriy quang h6a xcc tac duqc c6 uu dikm Is chit hhiru c o duqc oxy h6a hoin toan