Photodegradation of Pb-3,4-dihydroxybenzoic acid complex under UV light illumination

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	Photodegradation of Pb-3,4-dihydroxybenzoic acid complex under UV light illumination
	Hu, Xuefeng1 ; Qin, Wei
发表期刊	WATER SCIENCE AND TECHNOLOGY
ISSN	0273-1223
	2012
卷号	65 期号:5 页码:948-953
关键词	Pb2++ Complex 3 Photodegradation 4-dihydroxybenzoic Acid Precipitate
产权排序	[Hu, Xuefeng] CAS, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China; Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
通讯作者	Hu, XF (reprint author), CAS, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China. xfhu@yic.ac.cn
作者部门	环境化学实验室
英文摘要	The degradation of 3,4-dihydroxybenzoic acid (3,4-DHBA) in the presence and absence of Pb2+ under UV illumination was studied. Addition of Pb2+ caused the formation of precipitate during photoreaction when the solution pH was higher than 6. The presence of Pb2+ remarkably inhibited the degradation of 3,4-DHBA and its photodegradation intermediates, while complexation of 3,4-DHBA and its photodegradation intermediates with Pb2+ decreased the free Pb2+ in aqueous solutions. Molecular oxygen played an important role in photodegradation of 3,4-DHBA in the presence of Pb2+. UV-Vis spectroscopy was used to investigate the interaction between Pb2+ and 3,4-DHBA at different pH conditions, and FT-IR was used to characterize the precipitate formed during photoreaction. The mineralization of 3,4-DHBA was investigate by total organic carbon analysis.; The degradation of 3,4-dihydroxybenzoic acid (3,4-DHBA) in the presence and absence of Pb2+ under UV illumination was studied. Addition of Pb2+ caused the formation of precipitate during photoreaction when the solution pH was higher than 6. The presence of Pb2+ remarkably inhibited the degradation of 3,4-DHBA and its photodegradation intermediates, while complexation of 3,4-DHBA and its photodegradation intermediates with Pb2+ decreased the free Pb2+ in aqueous solutions. Molecular oxygen played an important role in photodegradation of 3,4-DHBA in the presence of Pb2+. UV-Vis spectroscopy was used to investigate the interaction between Pb2+ and 3,4-DHBA at different pH conditions, and FT-IR was used to characterize the precipitate formed during photoreaction. The mineralization of 3,4-DHBA was investigate by total organic carbon analysis.
文章类型	Article
资助机构	National Science Foundation of China[41076040, 20807036]; Yantai Science & Technology Bureau[2010160]; Chinese Academy of Sciences[KZCX2-YW-JS208]; Taishan Scholar Program of Shandong Province
收录类别	SCI
语种	英语
关键词[WOS]	DISSOLVED ORGANIC-MATTER ; HUMIC SUBSTANCES ; MODEL COMPOUNDS ; PHOTOOXIDATION ; DEGRADATION ; TOXICITY ; PHENOL ; LEAD ; PHOTOCHEMISTRY ; OXIDATION
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology ; Water Resources
WOS记录号	WOS:000300634800022
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/5521
专题	中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
作者单位	1.CAS, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Hu, Xuefeng,Qin, Wei. Photodegradation of Pb-3,4-dihydroxybenzoic acid complex under UV light illumination[J]. WATER SCIENCE AND TECHNOLOGY,2012,65(5):948-953.
APA	Hu, Xuefeng,&Qin, Wei.(2012).Photodegradation of Pb-3,4-dihydroxybenzoic acid complex under UV light illumination.WATER SCIENCE AND TECHNOLOGY,65(5),948-953.
MLA	Hu, Xuefeng,et al."Photodegradation of Pb-3,4-dihydroxybenzoic acid complex under UV light illumination".WATER SCIENCE AND TECHNOLOGY 65.5(2012):948-953.

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