Manipulating the morphology of 3D flower-like CoMn2O4 bimetallic catalyst for enhancing the activation of peroxymonosulfate toward the degradation of selected persistent pharmaceuticals in water

被引：75

作者：

Thanh-Binh Nguyen ^{[1
]}

Huang, C. P. ^{[2
]}

Doong, Ruey-an ^{[3
]}

Wang, Ming-Huang ^{[1
]}

Chen, Chiu-Wen ^{[1
]}

Dong, Cheng-Di ^{[1
]}

机构：

[1] Natl Kaohsiung Univ Sci & Technol, Dept Marine Environm Engn, Kaohsiung, Taiwan

[2] Univ Delaware, Dept Civil & Environm Engn, Newark, DE 19716 USA

[3] Natl Tsing Hua Univ, Dept Biomed Engn & Environm Sci, Hsinchu 30013, Taiwan

来源：

CHEMICAL ENGINEERING JOURNAL | 2022年 / 436卷

关键词：

3D flower-like; CoMn2O4; Peroxymonsulfate (PMS); Heterogeneous activation; Tetracycline (TC); SUPPORTED COBALT OXIDE; SINGLET OXYGEN; HETEROGENEOUS ACTIVATION; BIOLOGICAL TREATMENT; TETRACYCLINE; OXIDATION; ANTIBIOTICS; CO; HYDROXYL; REMOVAL;

D O I：

10.1016/j.cej.2022.135244

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A 3D flower-like CoMn2O4 catalyst was synthesized via hydrothermal-calcination technique as peroxymonosulfate (PMS) activator for the remediation of pharmaceuticals, exemplified by antibiotics tetracycline (TC) in aqueous solutions. TC degradation in the CoMn2O4-PMS system took place over a broad pH range of 5 to 9. Different water matrices (tap water and lake water) did not affect the efficiency of CoMn2O4/PMS system. Multiple uses of CoMn2O4 did not alter the surface properties and catalytic TC degradation efficiency. The dissolution of component metal ions was below the allowable drinking water standard. Carbon oxidation state was increased from -0.51 to 1.2, indicating high degree of mineralization. Non-radical, specifically singlet oxygen, and radical, namely, hydroxyl and sulfate radical, contributed 30.6% and 68.4% to TC degradation, respectively. The CoMn2O4-PMS system was efficient in the degradation of several pharmaceuticals, including tetracycline, SMX, Cipro CIP and BPA.

引用

页数：13

共 68 条

[21] Activation of peroxymonosulfate by magnetic carbon supported Prussian blue nanocomposite for the degradation of organic contaminants with singlet oxygen and superoxide radicals [J].