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Effect of Nitrogen Doping on Titanium Carbonitride-Derived Adsorbents Used for Arsenic Removal

Effect of Nitrogen Doping on Titanium Carbonitride-Derived Adsorbents Used for Arsenic Removal

Jisun Han, Soonjae Lee, Keunsu Choi, Jinhong Kim, Daegwon Ha, Chang-Gu Lee, Byungryul An, Sang-Hyup Lee, Hiroshi Mizuseki, Jae-Woo Choi, Shinhoo Kang

J Hazard Mater. 2016 Jan 25;302:375-385.

PMID: 26479190

Abstract:

Arsenic in water and wastewater is considered to be a critical contaminant as it poses harmful health risks. In this regard, to meet the stringent regulation of arsenic in aqueous solutions, nitrogen doped carbon-based materials (CN) were prepared as adsorbents and tested for the removal of arsenic ion from aqueous solutions. Nitrogen-doped carbon (CNs) synthesized by chlorination exhibited well-developed micro- and small meso-pores with uniform pore structures. The structure and characteristics of the adsorbents thus developed were confirmed by field-emission scanning electron microscopy, transmission electron microscopy, Brunauer-Emmett-Teller analysis, X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. Among the CNs developed, CN700 exhibited high adsorption capacity for arsenic (31.08 mg/g). The adsorption efficiency for arsenic ion was confirmed to be affected by pyrrolic nitrogen and micro-pores. These results suggest that CNs are useful adsorbents for the treatment of arsenic, and in particular, CN700 demonstrates potential for application as an adsorbent for the removal of anionic heavy metals from wastewater and sewage.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP12654863	Titanium carbonitride		12654-86-3	Price

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