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利用瞬态吸收光谱技术进行了有氧、无氧条件下苯与亚硝酸水溶液复相体系的交叉反应机理研究 ,初步考察了这些瞬态物种的生长与衰减等行为 ;并对其光解产物进行了GC/MS分析 .研究表明 ,HNO2 在 3 5 5nm紫外光的照射下可产生·OH和NO+ ,·OH自由基和苯反应生成C6H6 OHadduct ,反应速率常数为 8 9× 10 9L·mol-1·s-1,在有氧条件下C6H6 OHadduct进一步氧化为C6H6 OHO2 ,反应速率常数 3 3× 10 8L·mol-1·s-1;NO+ 自由基和苯作用形成C6H6 NO+ πcomplex ,然后进一步分解
The transient reaction absorption spectroscopy was used to study the cross-reaction mechanism of benzene and nitrous acid aqueous solution under aerobic and anaerobic conditions. The growth and decay of these transient species were primarily investigated. The photodegradation products The results of GC / MS showed that HNO2 could generate · OH and NO + ions when irradiated with UV light at 355 nm, and · OH reacted with benzene to produce C6H6OHadduct with a reaction rate constant of 8 9 × 10 9 L · mol -1 · S-1, further oxidation of C6H6OHadduct to C6H6OHO2 under aerobic conditions, the reaction rate constant of 3 3 × 10 8L · mol-1 · s-1; NO + free radicals and benzene to form C6H6NO + πcomplex, and then further decomposition