摘要
采用高压汞灯作光源,用GC-MS研究了TiO2对苯酚光化学反应的影响.结果表明,TiO2对苯酚的硝化反应起催化作用,对苯酚的氯代反应无催化作用;有氧条件比无氧条件下的光化学反应产物复杂,产生的污染更为严重.TiO2存在时苯酚和NaNO2光化学产物有硝基苯酚、醇、酮、联苯和多环芳烃.TiO2和NaCl活化后,苯酚的光反应较暗反应更为复杂,可生成毒性更大的污染化合物.
Effects of TiO_2 on photochemical reaction of phenol were studied with GC-MS using high pressure mercury lamp. The results showed that TiO_2 catalyze nitrifing reaction of phenol, but couldn't catalyze chloride reaction of phenol.The reaction products were more complicated with oxygen than those without oxygen, therefore the pollution was more serious.Products of photochemical reaction of phenol with NaNO_2 in the presence of TiO_2 were nitro phenol,alchohol,biphenyl,ketones and PAH.After the activation of TiO_2 and NaCl, phenol's photochemical reaction was more complicated than its dim reaction ,and produced more toxious chemical compounds.
出处
《河南农业大学学报》
CAS
CSCD
2004年第1期88-92,共5页
Journal of Henan Agricultural University
基金
山东省自然科学基金资助项目(950F09)
