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化学学报
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化学学报 ›› 1958, Vol. 24 ›› Issue (2): 187-193. 上一篇    下一篇

论文

二氧化硫的光化氧化和光敏氧化

陈时伟   

  • 投稿日期:1956-12-20 发布日期:2013-06-03

OXIDATION OF SULFUR DIOXIDE BY PHOTOCHEMICAL REACTION AND PHOTOSENSITIZATION

CHEN SHIH-WEI, (S.W.CHEN)   

  • Received:1956-12-20 Published:2013-06-03

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二氧化硫在汞共振辐射照射下,可发生光化氧化和光敏氧化作用而产生三氧化硫。量子总产率随气体流速的增加而增大。用氮冲淡氧,对三氧化硫生成量的影响甚微,故可用空气代替纯氧。反应可在室温和寻常大气压下进行。1849.6Å和2537.5Å线光化氧化和光敏氧化的反应机构均经初步阐明;其量子总产率应分别为略近于2和略大于1,实测的最大值则分别为1.12及1.39和0.31及0.68。

Under the action of mercury resonance radiation,sulfur trioxide was obtained by mercury photosensitized reaction or photochemical reaction on sulfur dioxide.Air was found suitable as the source of oxygen.The mechanism of these reactions was proposed;the values of overall quantum yields of photoreaction and photosensitized reaction at the line 1849.6 Å were found to be 1.12 and 1.39 respectively,while that of the corresponding reactions at the linf} 2537.5Å,0.31 and 0.68 respectively.