title: Simultaneous removal of tetracycline hydrochloride and As(III) using poorly-crystalline manganese dioxide.
abstract: Simultaneous removal of antibiotic tetracycline hydrochloride (TC) and As(III) by poorly-crystalline Mn dioxide was investigated. TC and As(III) can be effectively oxidized and removed by MnO2. High concentrations of TC and As(III) competed with each other for oxidation or adsorption sites on MnO2 and thus affected their removal efficiency. The intermediates and products of TC after reaction with poorly-crystalline manganese dioxide were identified by LC-ESI-MS (liquid chromatography-electrospray ionization-mass spectrometry), and the decomposition pathways of TC by MnO2 were proposed. This study is helpful for understanding the importance of environmental Mn dioxides in the decontamination of combined pollution by organic pollutants and metal(loid)s.
authors.affiliation: Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Chinese Academy of Sciences, Urumqi 830011, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Huawei
authors.initials: H
authors.lastname: Wang
authors.affiliation: Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Chinese Academy of Sciences, Urumqi 830011, China; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China.
authors.forename: Daoyong
authors.initials: D
authors.lastname: Zhang
authors.affiliation: Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Chinese Academy of Sciences, Urumqi 830011, China.
authors.forename: Shuyong
authors.initials: S
authors.lastname: Mou
authors.affiliation: Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Chinese Academy of Sciences, Urumqi 830011, China.
authors.forename: Wenjuan
authors.initials: W
authors.lastname: Song
authors.affiliation: Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
authors.forename: Fahad A
authors.initials: FA
authors.lastname: Al-Misned
authors.affiliation: Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; Department of Zoology, Faculty of Life and Earth Science, Rajshahi University, Rajshahi 6205, Bangladesh.
authors.forename: M
authors.initials: M
authors.lastname: Golam Mortuza
authors.affiliation: Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Chinese Academy of Sciences, Urumqi 830011, China. Electronic address: panxl@ms.xjb.ac.cn.
authors.forename: Xiangliang
authors.initials: X
authors.lastname: Pan
mesh_terms: D000327:Adsorption; D001151:Arsenic / Q000032:analysis / Q000737:chemistry*; D004785:Environmental Pollutants / Q000032:analysis / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000379:methods*; D017895:Manganese Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D013752:Tetracycline / Q000032:analysis / Q000737:chemistry*
chemical_list: D004785:Environmental Pollutants; D017895:Manganese Compounds; D010087:Oxides; D013752:Tetracycline; D001151:Arsenic; C016552:manganese dioxide
keywords: Antibiotics; Arsenic; Decomposition; Manganese dioxide; Oxidation