摘要
研究了水溶液中铜离子与抗坏血酸、柠檬酸盐及藻等配合体系在高压汞灯光照下产生氢氧自由基的情况,其中铜与抗坏血酸系统反应最强,高压汞灯光照增强了铜与抗坏血酸反应产生氢氧自由基的过程,高压汞灯光照时所产生的自由基量为不光照时的6～7倍。同时铜(或抗坏血酸)单一的水溶液在光照条件下也能产生氢氧自由基。铜离子与柠檬酸钠溶液混合在光照下能产生氢氧自由基;铜离子与藻液混合能加倍藻液中氢氧自由基的产生。
Photo-produced hydroxyl radical (·OH) could be induced in aqueous solution with Cu2+ and some complex compounds under high-pressure mercury lamp with an exposure time of 4h. The amount of ·OH produced in aqueous solution of Cu2+ and ascorbic acid was greater than that without light. The solution of Cu2+ and citrate could generate ·OH under mercury light. It also found that Cu2+ greatly strengthened photo-production of ·OH in aqueous solution with the present of algae.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2006年第4期6-8,共3页
Environmental Science & Technology
基金
国家自然科学基金资助项目(No.20477031)
