Synthesis of stable and easily recycled ferric oxides assisted by Rhodamine B for efficient degradation of organic pollutants in heterogeneous photo-Fenton system
Synthesis of stable and easily recycled ferric oxides assisted by Rhodamine B for efficient degradation of organic pollutants in heterogeneous photo-Fenton system
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罗丹明 B 辅助合成稳定且易回收的三氧化二铁，用于非均相光芬顿体系中有机污染物的高效降解
DOI：
10.1016/j.jclepro.2018.06.122
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发表时间：
2018-09
影响因子：
11.1
通讯作者：
Gaoke Zhang
中科院分区：
文献类型：
--
作者：
Zhangmin Sun;Chun Xiao;Fida Hussain;Gaoke Zhang
通过水热法合成了具有高催化活性的铁氧化物，并在水热条件下加入罗丹明B（RhB），然后焙烧。通过H2 O2和可见光照射下RhB和4-硝基苯酚（4-NP）的降解来考察该催化剂的催化性能。结果表明，RhB的引入显著提高了催化剂的光Fenton催化性能。在最佳条件下，Fe-RhB催化剂对10 mg/L RhB和20 mg/L 4-NP的降解率分别在40 min和16 min内达到99%和80%以上。此外，Fe-RhB催化剂在较宽的pH范围（2.9 ~ 10.7）内对RhB的降解表现出较高的催化活性。更重要的是，该催化剂很容易被外磁场分离，可以重复使用，并且在5次循环后仍保持较高的活性和良好的稳定性。最后，对污染物降解的可能机理进行了探讨。该研究为开发高活性、易回收的多相光Fenton催化剂提供了新的思路。
Ferric oxides with enhanced catalytic activity were successfully prepared via a facile hydrothermal process with the addition of Rhodamine B (RhB) followed by calcination. The catalytic performance of the catalyst was investigated by the degradation of RhB and 4-nitrophenol (4-NP) with the participation of H2O2and visible light irradiation. The results demonstrate that the introduction of RhB into the hydrothermal process greatly enhanced the photo-Fenton catalytic performance of the catalysts for pollutants removal. Under the preferred conditions, the degradation rate of RhB (10 mg/L) and 4-NP (20 mg/L) by the Fe-RhB catalyst was over 99% and 80% within 40 min and 16 min, respectively. Furthermore, the Fe-RhB catalyst exhibited high catalytic activity for the degradation of RhB in a wide pH range from 2.9 to 10.7. More importantly, the catalyst was easily separated by external magnetic field to be reused and it still kept high activity and good stability after five cycles. Finally, the possible mechanism of the pollutants degradation was recommended. This research may provide new insight into the development of new heterogeneous photo-Fenton catalyst with high catalytic activity and easy-recovery.
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影响因子：
2.4
作者：
A. Thakur;H. Kaur
通讯作者：
A. Thakur;H. Kaur
影响因子：
22.1
作者：
Ortiz de la Plata, Guadalupe B.;Alfano, Orlando M.;Cassano, Alberto E.
通讯作者：
Cassano, Alberto E.
影响因子：
22.1
作者：
Belessi, V.;Lambropoulou, D.;Albanis, T.
通讯作者：
Albanis, T.
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影响因子：
11.4
作者：
Huang, Hanjie;Li, Danzhen;Fu, Xianzhi
通讯作者：
Fu, Xianzhi
影响因子：
13.6
作者：
S. Yuan;Meng Tian;Yanping Cui;Li Lin;Xiao-hua Lu
通讯作者：
S. Yuan;Meng Tian;Yanping Cui;Li Lin;Xiao-hua Lu