Effect of Inorganic Ions on the Oxidative Efficiency of Ti(IV)-Catalyzed H2O2/O3 Process in the pH Range of 1.0 to 6.0
Effect of Inorganic Ions on the Oxidative Efficiency of Ti(IV)-Catalyzed H2O2/O3 Process in the pH Range of 1.0 to 6.0
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DOI：
10.1080/01919512.2013.796860
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发表时间：
2013-05
期刊：
影响因子：
--
通讯作者：
S. Tong;Su Yu;Yan Gao;Chun’an Ma
中科院分区：
文献类型：
--
作者：
S. Tong;Su Yu;Yan Gao;Chun’an Ma
在初始pH为1.0~6.0的范围内，考察了Ti(IV)催化的H_2O_2/O_3(Ti(IV)/H_2O_2/O_3)对醋酸(HAc)的氧化效率，并详细讨论了几种常见无机离子的影响。结果表明，SO_4~2-−和NO_3~--−对Ti(IV)/H_2O_2/O_3的处理效果影响不大。但投加BR-−后，HAc的去除速率大大降低。Cl-−的存在也降低了Ti(IV)/H_2O_2/O_3的催化效率，但在初始pH为4.5~5.5时，其负面影响可以忽略不计。在初始pH为4.5~5.5的范围内，投加碳酸钠对Ti(IV)/H_2O_2/O_3的去除效果无明显影响，加入H_2PO_4-−可提高HAc的去除效率。
The oxidative efficiency of Ti(IV)-catalyzed H2O2/O3 (Ti(IV)/H2O2/O3) for acetic acid (HAc) degradation was investigated in the initial pH range of 1.0 to 6.0, and the effects of some common inorganic ions were also discussed in detail. The results showed that the effects of SO4 2− and NO3 − on the efficiency of Ti(IV)/H2O2/O3 were negligible. However, adding Br− greatly reduced the removal rate of HAc. The presence of Cl− also reduced the efficiency of Ti(IV)/H2O2/O3, but its negative effect became negligible in the initial pH range of 4.5 to 5.5. The presence of H2PO4 − could improve the removal rate of HAc, and addition of sodium carbonate had no influence on the efficiency of Ti(IV)/H2O2/O3 in the initial pH range of 4.5 to 5.5.