Han, Jisun Lee, Soonjae Choi, Keunsu Kim, Jinhong Ha, Daegwon Lee, Chang-Gu An, Byungryul Lee, Sang-Hyup Mizuseki, Hiroshi Choi, Jae-Woo Kang, Shinhoo 2024-01-20T05:04:02Z 2024-01-20T05:04:02Z 2021-09-04 2016-01 0304-3894 https://pubs.kist.re.kr/handle/201004/124539 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. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV Effect of nitrogen doping on titanium carbonitride-derived adsorbents used for arsenic removal Article 10.1016/j.jhazmat.2015.10.001 1 JOURNAL OF HAZARDOUS MATERIALS, v.302, pp.375 - 385 JOURNAL OF HAZARDOUS MATERIALS 302 375 385 N scie scopus 000366225300043 2-s2.0-84945207566 Engineering, Environmental Environmental Sciences Engineering Environmental Sciences & Ecology Article AUGMENTED-WAVE METHOD OXYGEN REDUCTION ACTIVATED CARBON CO2 CAPTURE PORE-SIZE CARBIDE ADSORPTION SUPERCAPACITORS GRAPHENE CATHODE Arsenic removal Nitrogen doping Micro-pores Chlorination First-principles calculation