Facile Fabrication of Manganese Oxide/Carbon Nanotube and Its Application for Lead Removal

Tian-ze ZHU, Zhu-biao XIONG, Yong DAI, Kai-bing XU, Jian-mao YANG, Jian-yun LIU

Abstract


MnO2/C composite nanotubes (MnO2/C-CNTs) have been prepared with carbon nanofibers from the electrospinning PAN fiber, which are soaked in potassium permanganate then annealed in a furnace. The morphology of the MnO2/C-CNTs and the manganese loading amount is tunable by adjusting the soaking time and the potassium permanganate solution concentration. The manganese state is studied by XRD and XPS. The MnO2/C-CNTs had an adsorption ability to lead ions. The maximum adsorption capacity approach is found to be 283mg/g，double higher than that of unannealed samples. The data at adsorption equilibrium are suited to the Langmuir model.

Keywords


MnO2/C composite nanotubes, Carbon nanofibers, Annealing, Adsorption


DOI
10.12783/dteees/icepe2017/11888

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