<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Yudan Liu</style></author><author><style face="normal" font="default" size="100%">Jingke Wu</style></author><author><style face="normal" font="default" size="100%">Nanchunxiao Cheng</style></author><author><style face="normal" font="default" size="100%">Pengfei Gan</style></author><author><style face="normal" font="default" size="100%">Yunyi Li</style></author><author><style face="normal" font="default" size="100%">Liu, Wen</style></author><author><style face="normal" font="default" size="100%">Jiangyu Ye</style></author><author><style face="normal" font="default" size="100%">Meiping Tong</style></author><author><style face="normal" font="default" size="100%">Jialiang Liang</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The overlooked role of UV185 induced high-energy excited states in the dephosphorization of organophosphorus pesticide by VUV/persulfate</style></title><secondary-title><style face="normal" font="default" size="100%">Chemosphere</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Excited state</style></keyword><keyword><style  face="normal" font="default" size="100%">Mineralization</style></keyword><keyword><style  face="normal" font="default" size="100%">Photoexcitation</style></keyword><keyword><style  face="normal" font="default" size="100%">Radical yield</style></keyword><keyword><style  face="normal" font="default" size="100%">VUV</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2023</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S0045653523012602</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">334</style></volume><pages><style face="normal" font="default" size="100%">138993</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Vacuum ultraviolet (VUV) based advanced oxidation processes (AOPs) recently attracted widespread interests. However, the role of UV185 in VUV is only considered to be generating a series of active species, while the effect of photoexcitation has long been overlooked. In this work, the role of UV185 induced high-energy excited state for the dephosphorization of organophosphorus pesticides was studied using malathion as a model. Results showed malathion degradation was highly related to radical yield, while its dephosphorization was not. It was UV185 rather than UV254 or radical yield that was responsible for malathion dephosphorization by VUV/persulfate. DFT calculation results demonstrated that the polarity of P-S bond was further increased during UV185 excitation, favoring dephosphorization while UV254 did not. The conclusion was further supported by degradation path identification. Moreover, despite the fact that anions (Cl-, SO42- and NO3-) considerably affected radical yield, only Cl- and NO3- with high molar extinction coefficient at 185 nm significantly affected dephosphorization. This study shed light on the crucial role of excited states in VUV based AOPs and provided a new idea for the development of mineralization technology of organophosphorus pesticides.</style></abstract></record></records></xml>