254/185 nm photolysis of p-nitrophenol

LOW ENERGY ACCELERATORS AND RADIATION APPLICATIONS

254/185 nm photolysis of p-nitrophenol

ZHAO Sufang，

MA Hongjuan，

WANG Min，

CAO Changqing，

XIONG Jie，

XU Yunshu，

YAO Side

Nuclear Science and Techniques

Vol.21, No.3

pp.141-145

Published in print 20 Jun 2010

DOI：10.13538/j.1001-8042/nst.21.141-145

43900

Degradation of low-concentration p-nitrophenol (p-NP) aqueous solution was carried out in 254/185 nm photolysis. The effects of Mn²⁺, pH value, O₂ and O₃ on the degradation efficiency have been investigated. It was observed that the singlet oxygen scavenger Mn²⁺ did not affect the degradation of p-NP. In acidic and alkaline solutions, the degradation efficiency was enhanced in comparison to that in neutral solution. The presence of O₂ dramatically promoted the degradation of p-NP, while that of O₃ impeded it.

VUVp-NitrophenolDegradationAdvanced oxidation process

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