Photocatalytic degradation of 2,4-dichlorophenoxyacetic acid, 4-chlorophenol, and oxalic acid with simultaneous hydrogen production under weak UV light illumination
文献类型：期刊论文
| 作者 | Zhang Xianghua1; Liu Hong2; Li Wenzhao1; Xu Hengyong1 |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2008-03-01 |
| 卷号 | 29期号:3页码:281-286 |
| 关键词 | photocatalysis UV light platinum titania organic pollutant degradation simultaneous hydrogen production |
| 英文摘要 | photocatalytic degradation of three organic pollutants, 2,4-dichlorophenoxyacetic acid (2,4-d)), 4-chlorophenol (4-cp), and oxalic acid (oa), with simultaneous hydrogen evolution was investigated with weak uv light illumination. the photocatalytic reactions were carried out in 160 ml solutions of the pollutants (1.0 mmol/l) using 1.0% pt/tio2, (1.0 g/l) as the catalyst. after 2 h illumination, 38.43, 0.05, and 111.35 mu mol of hydrogen and 73.80, 4.49, and 175.99 mu mol of carbon dioxide were produced. simultaneously, 83.83% of 2,4-d, 36.19% of 4-cp, and 98.81% of oa were removed. these results showed that oa and 2,4-d) were good electron donors for the photocatalytic hydrogen evolution. on the other hand, under the illumination of a strong uv light source with light intensity 150 times that the weak uv light, more than 90% of 2,4-d and 4-cp were removed within 5 min. the amounts of hydrogen produced were 113.02, 38.98, and 191.30 mu mol for 2,4-d, 4-cp, and oa solutions, respectively, and 195.60, 31.41, and 306.96 mu mol of carbon dioxide was also produced. therefore an appropriate combination of the processes of weak uv light and strong uv light can perform ultimate mineralization of organic pollutants with high hydrogen production and collective carbon dioxide of easy disposal. in this way the pollutants can be removed, and the light energy and chemical energy of the organic pollutants can be transferred to chemical energy in the form of hydrogen. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | enhancement ; generation ; pt/tio2 ; tio2 ; decomposition ; suspensions |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000254925900017 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140807]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Xianghua,Liu Hong,Li Wenzhao,et al. Photocatalytic degradation of 2,4-dichlorophenoxyacetic acid, 4-chlorophenol, and oxalic acid with simultaneous hydrogen production under weak UV light illumination[J]. chinese journal of catalysis,2008,29(3):281-286. |
| APA | Zhang Xianghua,Liu Hong,Li Wenzhao,&Xu Hengyong.(2008).Photocatalytic degradation of 2,4-dichlorophenoxyacetic acid, 4-chlorophenol, and oxalic acid with simultaneous hydrogen production under weak UV light illumination.chinese journal of catalysis,29(3),281-286. |
| MLA | Zhang Xianghua,et al."Photocatalytic degradation of 2,4-dichlorophenoxyacetic acid, 4-chlorophenol, and oxalic acid with simultaneous hydrogen production under weak UV light illumination".chinese journal of catalysis 29.3(2008):281-286. |
入库方式： OAI收割
来源：大连化学物理研究所
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