Effect of the Different Compound Systems on Photocatalytic Reduction of Cr(VI) by Titanium-Bearing Blast Furnace Slag
文献类型：期刊论文
| 作者 | Lei XueFei; Xue XiangXin |
| 刊名 | ACTA CHIMICA SINICA
 |
| 出版日期 | 2008 |
| 卷号 | 66期号:22页码:2539-2546 |
| 关键词 | AQUEOUS-SOLUTIONS HETEROGENEOUS PHOTOCATALYSIS TIO2 PARTICLES REMOVAL CHROMIUM(VI) ACID SUSPENSIONS WASTE IONS XPS sulfate-modified titanium-bearing blast furnace slag Cr(VI)-citric acid compound system Cr(VI)-citric acid-ferric nitrate compound system photocatalytic activity Cr(VI) |
| ISSN号 | 0567-7351 |
| 其他题名 | Effect of the Different Compound Systems on Photocatalytic Reduction of Cr(VI) by Titanium-Bearing Blast Furnace Slag |
| 英文摘要 | Using calcined sulfate-modified titanium-bearing blast furnace slag (STBBFS) as photocatalyst, the photocatalytic activity of STBBFS photocatalyst toward a Cr(VI)-citric acid Cr(VI)-CA system and a Cr(VI)-citric acid-ferric nitrate Cr(VI)-CA-FN system was studied. The results indicate that the photocatalytic activity of STBBFS photocatalyst is more efficiently enhanced in the Cr(VI)-CA-FN compound system than in the single Cr(VI) or Cr(VI)-CA system, indicating that the photocatalytic activity of STBBFS photocatalyst can be improved in the presence of citric acid and ferric nitrate. The acidic solutions are favorable for the photocatalytic reduction of Cr(VI), and the optimum pH for the photocatalytic reduction of Cr(VI) is 2.5 in both compound systems. For the Cr(VI)-CA system, Cr(VI) is completely reduced after 50 min reaction tion when the photocatalytic activity of STBBFS photocatalyst is 0.426 mg.min(-1).g(-1). As for the Cr(VI)-CA-FN system, Cr(VI) is completely reduced after 16 min reaction when the photocatalytic activity of STBBFS photocatalyst is 1.2425 mg.min(-1).g(-1) In. Both the photocatalytic reductions of Cr(VI) in the Cr-(VI)-CA system and Cr(VI)-CA-FN system follow a Langmuir-Hinshel wood kinetic model. Though the effect of adsorption on the photocatalytic reduction of Cr(VI) was decreased, the adsorption of Cr(VI) on the catalyst surface still affected the photocatalytic activity of STBBFS photocatalyst remarkably. |
| 语种 | 英语 |
| CSCD记录号 | CSCD:3459299 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/152390]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Lei XueFei,Xue XiangXin. Effect of the Different Compound Systems on Photocatalytic Reduction of Cr(VI) by Titanium-Bearing Blast Furnace Slag[J]. ACTA CHIMICA SINICA,2008,66(22):2539-2546. |
| APA | Lei XueFei,&Xue XiangXin.(2008).Effect of the Different Compound Systems on Photocatalytic Reduction of Cr(VI) by Titanium-Bearing Blast Furnace Slag.ACTA CHIMICA SINICA,66(22),2539-2546. |
| MLA | Lei XueFei,et al."Effect of the Different Compound Systems on Photocatalytic Reduction of Cr(VI) by Titanium-Bearing Blast Furnace Slag".ACTA CHIMICA SINICA 66.22(2008):2539-2546. |
入库方式： OAI收割
来源：金属研究所
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