3D hollow sphere-like Cu-incorporated LaAlO3 perovskites for peroxymonosulfate activation: Coaction of electron transfer and oxygen defect

被引:66
作者
Chen, Ting [1 ,4 ]
Zhu, Zhiliang [1 ,4 ]
Wang, Zeyu [1 ,4 ]
Zhang, Hua [1 ]
Qiu, Yanling [2 ,4 ]
Yin, Daqiang [2 ,4 ]
Zhao, Guohua [2 ,3 ]
机构
[1] Tongji Univ, State Key Lab Pollut Control & Resource Reuse, 1239 Siping Rd, Shanghai 200092, Peoples R China
[2] Tongji Univ, Minist Educ, Key Lab Yangtze River Water Environm, Shanghai 200092, Peoples R China
[3] Tongji Univ, Sch Chem Sci & Engn, 1239 Siping Rd, Shanghai 200092, Peoples R China
[4] Shanghai Inst Pollut Control & Ecol Safety, Shanghai, Peoples R China
关键词
Perovskite; Electron transfer; Oxygen defect; Catalytic oxidation; Pharmaceutical pollutant; CATALYZED PEROXYMONOSULFATE; PHOTOCATALYTIC ACTIVITY; EFFICIENT DEGRADATION; ENHANCED DEGRADATION; ORGANIC POLLUTANTS; ADVANCED OXIDATION; SINGLET OXYGEN; EVOLUTION; OXIDES; PERFORMANCE;
D O I
10.1016/j.cej.2019.123935
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
To develop an efficient catalyst with novel structure and limited metal release for enhanced PMS activation, a 3D hollow sphere like Cu-incorporated LaAlO3 perovskite was synthesized based on soft chemical process with template-free. It was evaluated as the heterogeneous catalyst firstly to activate peroxymonosulfate (PMS) for the oxidative degradation of several typical pharmaceuticals in water. The mechanism study indicated a coaction of electron transfer and oxygen defects in this system. The obtained catalyst can promote electron transfer efficiency of Cu+/Cu2+ cycle and provide abundant oxygen defects for catalytic oxidation, which is responsible for the generation of center dot OH, SO4 center dot (-). and O-1(2) . These active species played crucial roles in efficient degradation of thiamphenicol (TAP), diclofenac sodium (DCF), ibuprofen (IBF) and paracetamol (PR), achieving more than 95% removal within 30 min. The catalyst kept high removal efficiency over pH range from 5.0 to 9.1 and suppressed copper leaching in reaction process. Besides, the catalyst exhibited good performance for TAP degradation and mineralization in raw water matrixes from Taihu Lake Basin, which showed a possible practical application to the remediation of water pollution.
引用
收藏
页数:12
相关论文
共 55 条
[1]   Structure and activity of strontium substituted LaCoO3 perovskite catalysts for syngas conversion [J].
Ao, Min ;
Pham, Gia Hung ;
Sage, Valerie ;
Pareek, Vishnu .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2016, 416 :96-104
[2]   LaAlO3 Hollow Spheres: Synthesis and Luminescence Properties [J].
Chen, Biaohua ;
Yu, Jianfei ;
Liang, Xin .
LANGMUIR, 2011, 27 (18) :11654-11659
[3]   Sulfur-doped copper-cobalt bimetallic oxides with abundant Cu(I): A novel peroxymonosulfate activator for chloramphenicol degradation [J].
Chen, Cheng ;
Liu, Li ;
Guo, Jing ;
Zhou, Lixiang ;
Lan, Yeqing .
CHEMICAL ENGINEERING JOURNAL, 2019, 361 :1304-1316
[4]   Accurate Control of Cage-Like CaO Hollow Microspheres for Enhanced CO2 Capture in Calcium Looping via a Template-Assisted Synthesis Approach [J].
Chen, Jian ;
Duan, Lunbo ;
Sun, Zhao .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2019, 53 (04) :2249-2259
[5]   Redox behaviour of bis(β-diketonato)copper(II) complexes [J].
Chiyindiko, Emmie ;
Conradie, Jeanet .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2019, 837 (76-85) :76-85
[6]   Efficient removal of organic and bacterial pollutants by Ag-La0.8Ca0.2Fe0.94O3-δ perovskite via catalytic peroxymonosulfate activation [J].
Chu, Yuanyuan ;
Tan, Xiaoyao ;
Shen, Zhangfeng ;
Liu, Pengyun ;
Han, Ning ;
Kang, Jian ;
Duan, Xiaoguang ;
Wang, Shaobin ;
Liu, Lihong ;
Liu, Shaomin .
JOURNAL OF HAZARDOUS MATERIALS, 2018, 356 :53-60
[7]   Raman studies of Rh and Pt on La2O3 catalysts used in a membrane reactor for hydrogen production [J].
Cornaglia, LM ;
Múnera, J ;
Irusta, S ;
Lombardo, EA .
APPLIED CATALYSIS A-GENERAL, 2004, 263 (01) :91-101
[8]   Insights into perovskite-catalyzed peroxymonosulfate activation: Maneuverable cobalt sites for promoted evolution of sulfate radicals [J].
Duan, Xiaoguang ;
Su, Chao ;
Miao, Jie ;
Zhong, Yijun ;
Shao, Zongping ;
Wang, Shaobin ;
Sun, Hongqi .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2018, 220 :626-634
[9]   Factors and mechanisms that influence the reactivity of trivalent copper: A novel oxidant for selective degradation of antibiotics [J].
Feng, Yong ;
Qing, Weihua ;
Kong, Lingjun ;
Li, Hailong ;
Wu, Deli ;
Fan, Yiang ;
Lee, Po-Heng ;
Shih, Kaimin .
WATER RESEARCH, 2019, 149 (1-8) :1-8
[10]   Promoted peroxymonosulfate activation into singlet oxygen over perovskite for ofloxacin degradation by controlling the oxygen defect concentration [J].
Gao, Panpan ;
Tian, Xike ;
Nie, Yulun ;
Yang, Chao ;
Zhou, Zhaoxin ;
Wang, Yanxin .
CHEMICAL ENGINEERING JOURNAL, 2019, 359 :828-839