1-苯基-5-巯基四氮唑和苯并三氮唑在胶态银和硫化银上的阳极抑制效应

doi:10.7517/j.issn.1674-0475.2002.02.100

影像科学与光化学 ›› 2002, Vol. 20 ›› Issue (2): 100-110.DOI: 10.7517/j.issn.1674-0475.2002.02.100

1-苯基-5-巯基四氮唑和苯并三氮唑在胶态银和硫化银上的阳极抑制效应

史瑶, 姚林辉, 赵文芳, 夏培杰

中国科学院, 理化技术研究所, 北京100101

收稿日期:2001-04-24 修回日期:2001-06-27 出版日期:2002-03-23 发布日期:2002-03-23
通讯作者: 赵文芳
基金资助:
国家自然科学基金资助(29873054);美国柯达公司资助项目

ANODIC INHIBITION OF 1-PHENYL-5-MERCAPTOTETRAZOLE AND BENZOTRIAZOLE ON COLLOIDAL PARTICLES OF SILVER AND SILVER SULPHIDE

SHI Yao, YAO Lin-hui, ZHAO Wen-fang, XIA Pei-jie

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P.R.China

Received:2001-04-24 Revised:2001-06-27 Online:2002-03-23 Published:2002-03-23

摘要/Abstract

摘要： 为了研究抑制剂对银核和硫化银核的不同作用,本工作考察了1-苯基-5-巯基四氮唑(PMT)和苯并三氮唑(BTA)作为抑制剂在银核和硫化银核上物理显影的阳极抑制和解抑制效应.实验结果表明: 1)PMT和BTA对Ag核和银离子过量时制得的硫化银核,Ag₂S(Ag),的显影催化活性都有不同程度的抑制作用,而对硫离子过量时制得的硫化银核,Ag₂S(S),无明显的抑制作用,这可能是由于过量硫离子在硫化银核上的吸附要强于这两种抑制剂;2)S₂O₃^2-或I^-离子的存在对BTA在Ag核上有解抑制作用,不仅可恢复甚至提高Ag核的显影催化活性,而对Ag₂S核的抑制作用无明显影响; 3)与BTA不同,S2O₃^2-或I^-离子对PMT在Ag核上没有解抑制作用,对Ag₂S(Ag)核的抑制作用还稍有增强,而对Ag₂S(S)核稍有减弱;4)银溶胶中的表面增强拉曼谱(SERS)测量证实:BTA在Ag核上的吸附导致Ag核显影催化活性的下降,加入S2O₃^2-或I^-离子后致使BTA的SERS信号消失则意味着BTA在银核表面的脱附.以上这些结果说明阳极抑制机理在抑制效应中有重要作用.

关键词: 抑制作用, 阳极抑制机理, 防灰雾剂

Abstract: In order to investigate the different effects of inhibitors on colloidal particles of silver and silver sulphide,the anodic inhibitions of 1-pheny-l5-mercaptotetrazole (PMT) and benzotriazole (BTA) were examined by physical development catalyzed with Ag and Ag₂S particles.The results are shown as follows: 1)that both PMT and BTA gave rise to inhibitions, to some extent,on Ag particles and Ag₂S(Ag) particles prepared under slight excess of silver ions,but did not give inhibitions to Ag₂S(S) particles prepared in slight excess of sulfur ions because adsorption of the excessive sulfur ions on Ag₂S particles was stronger than that of these inhibitors;2)that in the presence of S₂O₃^2- and I^- ions,the inhibition of BTA on Ag was not only eliminated,but the activity of Ag particles in catalyzing the physical development was even higher than that of Ag without addition of BTA,however,S₂O₃^2- and I^- ions gave no effects on the inhibition of Ag₂S particles with BTA;3)that in the case of PMT,S₂O₃^2- and I^- ions were not able to eliminate the intibition of PMT on Ag particles,but slightly increased or decreased the inhibitions on Ag₂S(Ag) or Ag₂S(S),respectively;4)that the measurements of SERS(Surface Enhancement of Raman Spectrometry)confirmed that the inhibition of BTA on Ag particles resulted from the adsorption and disappearance of an inhibition of BTA in the presence of S₂O₃^2- and I^- ions resulted from the desoption of BTA on Ag particles.All this means the importance of the anodic mechanism for inhibition.

Key words: inhibition, anodic mechanism of inhibition, anti-foggant

中图分类号:

TQ57

史瑶, 姚林辉, 赵文芳, 夏培杰. 1-苯基-5-巯基四氮唑和苯并三氮唑在胶态银和硫化银上的阳极抑制效应[J]. 影像科学与光化学, 2002, 20(2): 100-110.

SHI Yao, YAO Lin-hui, ZHAO Wen-fang, XIA Pei-jie . ANODIC INHIBITION OF 1-PHENYL-5-MERCAPTOTETRAZOLE AND BENZOTRIAZOLE ON COLLOIDAL PARTICLES OF SILVER AND SILVER SULPHIDE[J]. Imaging Science and Photochemistry, 2002, 20(2): 100-110.

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1-苯基-5-巯基四氮唑和苯并三氮唑在胶态银和硫化银上的阳极抑制效应

ANODIC INHIBITION OF 1-PHENYL-5-MERCAPTOTETRAZOLE AND BENZOTRIAZOLE ON COLLOIDAL PARTICLES OF SILVER AND SILVER SULPHIDE

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