量子收率测定仪

An Instrument for Photochemical Reaction Study

本文报导用于光化学反应研究的量子收率测定仪.该仪器主要由200瓦氙灯光源和带恒温夹套的石英反应器等十几个部件构成.核心部件光反应器的两个窗口和反应器壁烧结成为一个整体,可耐强酸、强碱和各种溶剂.采用草酸铁钾化学光度计测量单色光强度,可达2～8×10^(-8)爱因斯坦/秒,相对误差为±3%;测量催化光还原水产氢体系的量子收率,相对误差为±10%,在可比条件下与文献结果一致.

An instrument for photochemical reaction study, is reported. The instrument consists of a 200W xenon light source, a 40mL quartz photoreactor and several other parts. Two quartz windows are sintered with the walls of the photoreactor to form an integrated part. The intensity of the monochromatic light, generally 2～8×10^(-8) Einstein/s, is measured by a ferrioxalate chemical actinometer. The maximum deviations are within±3%.The relative errors for determination of ΦH_2 of two catalytic photoreduction watergenerated hydrogen systems are ±10%.