腐殖酸、铜离子及其络合物对双酚F光降解的影响  

Effects of Humic Acid,Copper Ion and Their Complexes on Photodegradation of Bisphenol

作　　者：韩雪[1] 马媛媛 张淼 张小毅 曾雯琪 景伟文 FHAN Xue;MA Yuan-yuan;ZHANG Miao;ZHANG Xiao-yi;ZENG Wen-qi;JING Wei-wen(College of Chemistry and Chemical Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Mineral Experimental Research Center of Xinjiang Uygur Autonomous Region,Urumqi 830000,China;Xinjiang Key Laboratory of Rock Mineral Analysis and Process Mineralogy Research,Urumqi 830000,China)

机构地区：[1]新疆农业大学化学化工学院,乌鲁木齐830052 [2]新疆维吾尔自治区矿产实验研究中心,乌鲁木齐830000 [3]新疆岩石矿物分析及工艺矿物学研究重点实验室,乌鲁木齐830000

出　　处：《新疆农业大学学报》2024年第2期150-158,共9页Journal of Xinjiang Agricultural University

基　　金：新疆农业大学研究生科研创新项目(XJAUGRI2023022);国家自然科学基金项目(21966030);新疆农业大学大学生创新项目。

摘　　要：在紫外光辐射条件下,研究了酚类有机污染物双酚F(BPF)在腐殖酸(HA)、铜离子(Cu^(2+))及两者络合物(HA-Cu^(2+))体系下的光降解现象,在pH值为3,BPF添加浓度为10.00 mg/L条件下,分别添加HA(0.001、0.100、1.000、10.000 mg/L)、Cu^(2+)(0.01、0.10、1.00、10.00 mg/L),以及Cu^(2+)(0.01、0.10、1.00、10.00 mg/L)与10.00 mg/L HA的络合物(HA-Cu^(2+)),分别分析其对BPF光降解效率的作用。结果表明,BPF在HA、Cu^(2+)、HA-Cu^(2+)溶液中的光解反应均符合准一级反应动力学特征。与BPF单独存在时的光解相比,当HA添加浓度为0.001 mg/L时,主要通过光敏化作用产生^(3)HA^(*)(HA激发三线态)促进光降解,当HA添加浓度由0.100 mg/L增大到10.000 mg/L时,光屏蔽作用随浓度增大,表现为抑制作用;当Cu^(2+)添加浓度为0.01 mg/L时,主要通过光敏化作用产生·OH促进光降解,当Cu^(2+)添加浓度由0.10 mg/L增大到10.00 mg/L时,Cu^(2+)猝灭了体系中的·OH,表现出抑制作用;在浓度添加水平为HA(10.00 mg/L)-Cu^(2+)(0.01、0.10、1.00、10.00 mg/L)络合物体系中,当Cu^(2+)浓度为0.01 mg/L时,由于HA-Cu^(2+)络合物经光诱导氧化还原反应生成·OH和^(1)O_(2),促进了BPF的光降解,当Cu^(2+)浓度由0.10 mg/L增大到10.00 mg/L时,由于Cu^(2+)猝灭了体系中高活性的^(3)HA^(*),导致·OH和^(1)O_(2)的生成速率减小,从而表现出抑制作用。利用LC-MS/MS法鉴定了BPF的光解产物,BPF光解后会转化为分子量更小、结构更为简单的化合物。Under ultraviolet radiation conditions,the photodegradation of phenolic organic pollutants bisphenol F(BPF)under humic acid(HA),copper ion(Cu^(2+))and their complexes(HA-Cu^(2+))was studied,and HA(0.001,0.100,1.000,10.000 mg/L),Cu^(2+)(0.01,0.10,1.00,10.00 mg/L)were added under the conditions of pH=3 and BPF addition concentration of 10.00 mg/L,and complexes of Cu^(2+)(0.01,0.10,1.00,10.00 mg/L)and 10.00 mg/L HA(HA-Cu^(2+)).Then their effects on the photodegradation efficiency of BPF were analyzed,respectively.The results showed that the photolysis reaction of BPF in HA,Cu^(2+)and HA-Cu^(2+)solutions was in line with the kinetics of the quasi-first-order reaction.Compared with photolysis when BPF was present alone,when HA was added at a concentration of 0.001 mg/L,mainly through photosensitization to produce^(3)HA^(*)(HA excited triplet)to promote photodegradation,when HA addition concentration was increased from 0.100 mg/L to 10.000 mg/L,the photoshielding effect showed an inhibitory effect with the increase of concentration.When Cu^(2+)was added at a concentration of 0.01 mg/L,mainly through photosensitization to produce·OH promotes photodegradation when Cu^(2+)was added at a concentration of 0.10 mg/L increased to 10.00 mg/L,Cu^(2+)quenched the·OH in the system,which exhibited an inhibitory effect;At the concentration added level of HA(10 mg/L)-Cu^(2+)(0.01,0.10,1.00,10.00 mg/L)complex system,when the concentration of Cu^(2+)was 0.01 mg/L,the formation of HA-Cu^(2+)complexes would be generated by light-induced redox reactions to generate·OH and^(1)O_(2)which promoted photodegradation of BPF,when the Cu^(2+)concentration was increased from 0.10 mg/L increased to 10.00 mg/L,because Cu^(2+)quenched the highly active^(3)HA^(*)in the system,the rate of formation of·OH and^(1)O_(2)decreased,thus exhibiting an inhibitory effect.Finally,the photolysis products of BPF were identified by LC-MS/MS,and the results showed that BPF was converted into compounds with smaller molecular weight and simpler structure after ph

关 键 词：双酚F 腐殖酸 铜离子 络合物 光降解 

分 类 号：X132[环境科学与工程—环境科学]