| Ca~(2+)/H_2O_2降解水中孔雀石绿 |
| |
| 引用本文： | 石慧,吴兆亮,卢珂,赵艳丽. Ca~(2+)/H_2O_2降解水中孔雀石绿[J]. 过程工程学报, 2009, 9(1): 38-42 |
| |
| 作者姓名： | 石慧 吴兆亮 卢珂 赵艳丽 |
| |
| 作者单位： | 河北工业大学化工学院,天津,300130;河北工业大学化工学院,天津,300130;河北工业大学化工学院,天津,300130;河北工业大学化工学院,天津,300130 |
| |
| 基金项目： | 天津市应用基础及前沿技术研究计划重点项目 |
| |
| 摘 要： | 在中性条件下，研究了Ca2++H2O2降解水中孔雀石绿(MG)过程. 结果表明，加入Ca2+明显促进了MG降解，可使其脱色率由20%升至98%. 随着H2O2加入量的增加，MG的脱色率在最初的10 min内显著上升，当H2O2/Ca2+(摩尔比)>5时，2 h后Ca2++H2O2降解MG脱色率均能达到98%. 随着温度的升高，MG的脱色率显著上升. 抗氧化剂(抗坏血酸)的加入抑制了Ca2++H2O2降解MG，当抗坏血酸浓度达到1 mg/L时，降解率为0，说明在Ca2++H2O2降解MG体系中存在着氧化作用. 在避光和光助条件下，加入Ca2+均能明显缩短MG的降解时间，说明Ca2+对其降解有催化作用.
|
| 关 键 词： | Ca~(2+) H_2O_2 孔雀石绿 降解 催化 |
| 收稿时间： | 2008-10-07 |
| 修稿时间： | 2008-11-24 |
Degradation of Malachite Green in Aqueous Solution by Ca~(2+)/H_2O_2 |
| |
| SHI Hui,WU Zhao-liang,LU Ke,ZHAO Yan-li. Degradation of Malachite Green in Aqueous Solution by Ca~(2+)/H_2O_2[J]. Chinese Journal of Process Engineering, 2009, 9(1): 38-42 |
| |
| Authors: | SHI Hui WU Zhao-liang LU Ke ZHAO Yan-li |
| |
| Affiliation: | School of Chemical Engineering and Technology, Hebei University of TechnologyDepartment of Bioengineering, Hebei University of TechnologySchool of Chemical Engineering, Hebei University of TechnologySchool of Chemical engineering, HeBei University of Technology |
| |
| Abstract: | The degradation of malachite green(MG) solution(4 mg/L) was improved by Ca2+/H2O2 at pH 7.0.Its oxidation was carried out at different H2O2 concentrations, temperatures and Ca2+ concentrations.The results showed that the decolorization rate of MG was promoted from 20% to 98% by adding Ca2+.The higher the concentration of H2O2, the higher the degradation rate of MG in early 10 min.When the molar ratio of H2O2 to Ca2+ was more than 5, the decolorization rate could reach 98% in 2 h.The higher the temperature, ... |
| |
| Keywords: | Ca2 H2O2 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《过程工程学报》浏览原始摘要信息 |
|
点击此处可从《过程工程学报》下载全文 |
|
