title: [Preparation and Pb2 electrosorption characteristics of MnO2/CFP composite electrode].
abstract: The morphological structure and electrochemical properties of the electrode materials have direct impact on the electrosorption results. In this paper, Manganese dioxide ( MnO2) was composed on flexible carbon fiber paper ( CFP) via anodic electrodeposition technique to prepare the MnO2/CFP hybrid electrodes. The electrodes materials prepared showed stable electrochemical property, remarkable electrochemical capacitance, and the specific capacitance reached up to 360 F x g(-1). Electrosorption was conducted with this MnO2/CFP hybrid electrode to treat the waste water with an initial Pb2+ concentration of 6 mg x L(-1), and the effects of deposition time, initial pH, and voltage value on the electrosorption were investigated. It was shown that when the electrodeposition time was 500 s and the application of voltage value was 1.0 V, pH = 5.0, the best electroabsorption result was achieved. After 3 h electrosorption, the residual Pb2+ in the solution was lower than 0.01 mg x L(-1), and the removal efficiency could reach 99%. This study provides a new technology option for the removal of heavy metal ions in low concentrations in the waste water.
authors.forename: Fang-Yuan
authors.initials: FY
authors.lastname: Liu
authors.forename: Cheng-Zhi
authors.initials: CZ
authors.lastname: Hu
authors.forename: Yong-Feng
authors.initials: YF
authors.lastname: Li
authors.forename: Qian-Wei
authors.initials: QW
authors.lastname: Liang
mesh_terms: D002244:Carbon / Q000737:chemistry*; D000077482:Carbon Fiber; D025802:Electric Capacitance; D004566:Electrodes; D007477:Ions; D007854:Lead / Q000737:chemistry*; D017895:Manganese Compounds / Q000737:chemistry*; D019216:Metals, Heavy; D010087:Oxides / Q000737:chemistry*; D012996:Solutions; D062065:Wastewater; D018508:Water Purification / Q000379:methods*
chemical_list: D002244:Carbon; D000077482:Carbon Fiber; D007477:Ions; D007854:Lead; D017895:Manganese Compounds; D019216:Metals, Heavy; D010087:Oxides; D012996:Solutions; D062065:Wastewater; C016552:manganese dioxide