Multilayered TNAs/SnO/PPy/β-PbO anode achieving boosted electrocatalytic oxidation of As(III).

Dealing with arsenic pollution has been of great concern owing to inherent toxicity of As(III) to environments and human health. Herein, a novel multilayered SnO/PPy/β-PbO structure on TiO nanotube arrays (TNAs/SnO/PPy/β-PbO) was synthesized by a multi-step electrodeposition process as an efficient electrocatalyst for As(III) oxidation in aqueous solution. Such TNAs/SnO/PPy/β-PbO electrode exhibited a higher charge transfer, tolerable stability, and high oxygen evolution potential (OEP).

MWCNT Decorated Rich N-Doped Porous Carbon with Tunable Porosity for CO Capture.

Designing of porous carbon system for CO uptake has attracted a plenty of interest due to the ever-increasing concerns about climate change and global warming. Herein, a novel N rich porous carbon is prepared by in-situ chemical oxidation polyaniline (PANI) on a surface of multi-walled carbon nanotubes (MWCNTs), and then activated with KOH. The porosity of such carbon materials can be tuned by rational introduction of MWCNTs, adjusting the amount of KOH, and controlling the pyrolysis temperature.