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303大连海事大学学报Vol.30,No.320048JournalofDalianMaritimeUniversityAug.,2004:1006-7736(2004)03-0062-03X邓淑芳,白敏冬,白希尧,刘兴旺(大连海事大学环境科学与工程学院,辽宁大连116026):OH#,.,10-12s.OH#,,,CO2H2O,.,.1s,1~10s.:;;:X38:A0引言(,AOPAOT).Hoigne[1],OH#.[2]:(1)(OH#),(2.80V)(2.87V),,;(2)OH#CO2H2O,;(3),,,10-9;(4),.OH#.OH#.1OH#的先进氧化特性(OH#),,,.:(1),(E0=2.80V,3.06V[3]),,,1.1O3OH#/V/(L#mol-1#s-1)OH#2.80(3.06)106~1010O32.073@10-5~102(2),.C-HC-C109L/(mol#s),[1010L/(mol#X:2003-07-161:(60031001);(2002CCC00900).:(1978-),,,.s)],2[4],7.1s,1~10s,3[4].(3).10-12s,3.(4).OH#,,,CO2H2O,..(5)H2OO2.2pH/(L#mol-1#s-1)pH/(L#mol-1#s-1)Fe2+2.12.5@108)1.0@1010H2O27.04.5@107)3.6@10107.43.0@1096.0~7.03.0@1097.03.2@109)5.0@1083.04.3@1097.04.7@108)2.6@10117.04.2@1092.03.2@1097.01.5@1097.02.9@109)1.9@10107.04.1@1097.01.2@109)1.9@109)2.3@10107.07.2@1087.03.1@1097.01.0@1097.03.1@1092.07.8@1073/s10-17~10-16:O2yO+2+e,H2OyH2O++e10-15:H2OyH2O*,O2yO*210-14-:H2O++H2OyH3O++OH#10-14:H2O*yH#+OH#10-12:H2O+eye-aq10-10~10-3OH#H#e-aq10-7:e-aqyH#+OH-10-71.01.0~102羟基自由基的化学反应107~109L/(mol#s),OH#,,108~1010L/(mol#s).,OH#.OH#4.(1)OH#,OH#A,63第3期邓淑芳,等:羟基自由基特性及其化学反应CH3OH+OH#yCH2OH+H2O(2),,NH2RCHCOOH+OH#RC#HNH2+H2O+CO2(3)DNARNA.(4),:Cl-+OH#Cl#+OH-OH#+O2-#OH-+O23结束语,,;,/0.(),,H2OO2OH#e)aq.,.,,.:[1]HARDWICKTJ.Thefreeradicalmechanisminthereactionsofhydrogenperoxide[J].CanJChem,1957,35(3):428.[2],.[J].,2002,22(1):1-5.[3],,,.[J].,2002,18(5):33-35.[4],,.[M].:,1999.31-197.CharacteristicsandchemicalreactionofhyaroxylradicalDENGShu-fang,BAIMin-dong,BAIX-iyao,LIUXing-wang(EnvironmentalScience&Eng.College,DalianMaritimeUniv.,Dalian116026,China)Abstract:Hydroxylradicalgenerationisthemarkoftechnologyofadvancedoxidation.Thispaperstudiedonthecharacteristicsofadvancedoxidation,analyzedchemicalreactionofhydroxyl.Thetimeofhydroxylradicalformationisveryshort,lessthan10-12s.Onceitcomesintobeing,hydroxylwillinduceaseriesofradicalchainreaction,oxygenolysisallthematterorganicandorganism,anditsultimateproductionisCO2,H2Oandalittleinorganicsaltwithoutharmfulpoisonousresidues.Thechemicalreactionofhydroxylradicalisfreeradicalreaction,whosereac-tionspeedisveryhigh.Itschemicalreactiontimeislessthan1s,andbiochemicalreactiontimeis1~10s.Keywords:hiydroxyradical;advancedoxidation,reactionrateconstant64大连海事大学学报第30卷
本文标题:羟基自由基特性及其化学反应
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