Removals of aqueous sulfur dioxide and hydrogen sulfide using CeO2-NiAl-LDHs coating activated carbon and its mix with carbon nano-tubes

Jing Li, Fangping Chen, Guanping Jin, Xiaoshuang Feng, Xiaoxuan Li

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Ce-doped NiAl/layered double hydroxide was coated at activated carbon by urea hydrolysis method (CeO2-NiAl-LDHs/AC) in one pot, which was characterized by X-ray diffraction, infrared spectra, field emission scanning electron microscope and electrochemical techniques. CeO2-NiAl-LDHs/AC shows good uptake for aqueous sulfur dioxide (483.09mg/g) and hydrogen sulfide (181.15mg/g), respectively at 25°C. Meanwhile, the electrochemical removals of aqueous sulfur dioxide and hydrogen sulfide were respectively investigated at the mix of CeO2-NiAl-LDHs/AC and carbon nano-tubes modified homed paraffin-impregnated electrode. Both sulfur dioxide and hydrogen sulfide could be effectively oxidized to sulfuric acid at 1.0V in alkaline aqueous solution. © 2015 Elsevier B.V.
Original languageEnglish (US)
Pages (from-to)90-97
Number of pages8
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume476
DOIs
StatePublished - Jul 2015

ASJC Scopus subject areas

  • Colloid and Surface Chemistry

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