Removal of polycyclic aromatic hydrocarbons by g-C3N4 nanosheets under visible light irradiation and effect of typical co-existence substances in river water
文献类型：期刊论文
| 作者 | Qiao, Meng ; Fu, Lujing; Barcelo, Damia
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| 刊名 | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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| 出版日期 | 2022-03 |
| 卷号 | 159期号:0页码:376-381 |
| ISSN号 | 0957-5820 |
| 关键词 | GRAPHITIC CARBON NITRIDE PHOTOCATALYTIC DEGRADATION SINGLET OXYGEN BISPHENOL-A AQUEOUS PHOTODEGRADATION ORGANIC CONTAMINANTS PEROXYMONOSULFATE PHENANTHRENE ACTIVATION SUPEROXIDE |
| 英文摘要 | Polycyclic aromatic hydrocarbons (PAHs) ubiquitously exist in aqueous environment, posing considerable chronic and acute ecological risk to aquatic species. Non-metallic photocatalyst g-C3N4 is a promising photocatalyst that can be used in river remediation under visible light irradiation. The removal of a typical PAH phenanthrene (PHE) by g-C3N4 under visible light was detailed studied. The removal efficiency of PHE (initial concentration 5 mg/L) by g-C3N4-nano sheet (NS) (1 g/L) reached 100% within 10 min under visible light. Reactive oxygenated species, including center dot O2-, 1O2, and center dot OH, were generated in the g-C3N4-NS/visible light system. center dot O2- and 1O2 were determined as the main active species, whereas photoelectric-hole and center dot OH were also involved in the reaction. The effects of co-existed substances were investigated, including humic acid (HA), Cl-, and NO3-. HA decreased the removal rate of PHE, probably due to its reaction with photogenerated holes. Cl- with lower concentration (0.2 - 10.0 mmol/L) decreased the removal rate of PHE, while with higher concentration (20 mmol/L) increased the removal rate of PHE, probably because of the interaction of Cl- with center dot OH. NO3- with the concentration of 10-100 mu mol/L did not significantly affect the removal rate of PHE. This study will provide a possible in-situ route for the removal of typical PAHs in urban river environment. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47897]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 通讯作者 | Qiao, Meng |
| 作者单位 | 1.Beijing Co, China Petr Engn & Construct Corp, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 3.Univ Girona, Catalan Inst Water Res ICRA, H2O Bldg,Sci & Technol Pk,Emili Grahit 101, Girona 17003, Spain 4.Inst Environm Assessment & Water Res IDAEA, Dept Environm Chem, Water & Soil Qual Res Grp, CSIC, JordiGironal826, Barcelona 08034, Spain |
| 推荐引用方式 GB/T 7714 | Qiao, Meng,Fu, Lujing,Barcelo, Damia. Removal of polycyclic aromatic hydrocarbons by g-C3N4 nanosheets under visible light irradiation and effect of typical co-existence substances in river water[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2022,159(0):376-381. |
| APA | Qiao, Meng,Fu, Lujing,&Barcelo, Damia.(2022).Removal of polycyclic aromatic hydrocarbons by g-C3N4 nanosheets under visible light irradiation and effect of typical co-existence substances in river water.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,159(0),376-381. |
| MLA | Qiao, Meng,et al."Removal of polycyclic aromatic hydrocarbons by g-C3N4 nanosheets under visible light irradiation and effect of typical co-existence substances in river water".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 159.0(2022):376-381. |
入库方式： OAI收割
来源：生态环境研究中心
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