| 超声-紫外光协同催化体系降解水中菲 |
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| 引用本文： | 李章良,饶艳英,黄建辉,杨小强,孙妮,吕培其.超声-紫外光协同催化体系降解水中菲[J].化工环保,2017,37(4):409-414. |
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| 作者姓名： | 李章良 饶艳英 黄建辉 杨小强 孙妮 吕培其 |
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| 作者单位： | 1. 莆田学院 环境与生物工程学院 福建省新型污染物生态毒理效应与控制重点实验室 生态环境及其信息图谱福建省高等学校重点实验室,福建 莆田 351100；; 2. 厦门中迅德检测技术股份有限公司,福建 厦门 361100 |
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| 基金项目： | 福建省自然科学基金面上项目（2016J01068）; 福建省教育厅科技重点项目（JA14273）; 国家级大学生创新创业训练计划项目（201511498003） |
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| 摘 要： | 以纳米TiO_2为催化剂,采用超声-紫外光协同催化体系降解水中菲,并考察了菲降解率的影响因素。实验结果表明:不同类型TiO_2对菲降解率的大小顺序为锐钛矿型TiO_2P25型TiO_2金红石型TiO_2;超声-紫外光协同催化体系对菲的降解率大于单独超声体系或紫外光催化体系,且均遵从一级反应动力学规律;在超声频率为60k Hz、声强为0.233 W/cm2、TiO_2投加量为0.06 g/L、pH为4.0、H_2O_2浓度为19.59 mmol/L的条件下降解75 min后,超声-紫外光协同催化体系对初始质量浓度为0.96 mg/L的菲的降解率可达76.78%。
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| 关 键 词： | 多环芳烃 菲 超声波 紫外光 催化剂 TiO2 协同效应 降解 |
| 收稿时间： | 2016-10-22 |
Degradation of phenanthrene in water by US-UV synergetic catalytic system |
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| Li Zhangliang,Rao Yanying,Huang Jianhui,Yang Xiaoqiang,Sun Ni,Lü,Peiqi.Degradation of phenanthrene in water by US-UV synergetic catalytic system[J].Environmental Protection of Chemical Industry,2017,37(4):409-414. |
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| Authors: | Li Zhangliang Rao Yanying Huang Jianhui Yang Xiaoqiang Sun Ni Lü Peiqi |
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| Affiliation: | 1. Fujian University Key Laboratory of Ecological Environment and Information Atlas, Fujian Provincial Key Laboratory of Ecology-toxicological Effects and Control for Emerging Contaminants,College of Environmental and Biological Engineering,Putian University,Putian Fujian 351100,China;2. Xiamen Sino-Tech Testing Technology Co. Ltd.,Xiamen Fujian 361100,China |
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| Abstract: | Phenanthrene in water was degraded by ultrasonic wave （US）-ultraviolet light （UV） synergetic catalytic system with TiO2 nanoparticles as catalyst. The factors affecting phenanthrene degradation were investigated. The order of degradation rate on different kinds of TiO2 was as follows：anatase TiO2 > P25 TiO2 > rutile TiO2. The phenanthrene degradation rate on US-UV synergetic catalytic system was greater than that of single US or UV photocatalytic system,their degradation processes all followed the pseudo-first order kinetics. Under the conditions of ultrasonic frequency 60 kHz,sound intensity 0.233 W/cm2,TiO2 amount 0.06 g/L,pH 4.0,H2O2 concentration 19.59 mmol/L,initial phenanthrene mass concentration 0.96 mg/L and reaction time 75 min,the degradation rate of phenanthrene reached 76.78%. |
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| Keywords: | polycyclic aromatic hydrocarbon （PAHs） phenanthrene ultrasonic wave ultraviolet light catalyst TiO2 synergetic effect degradation |
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