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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.10
- 수록면
- 176 - 183 (8page)
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A novel N-doped mesoporous carbon (AC-N) was prepared by impregnation method on the basis of cypress-derived activated carbon for methylene blue (MB) removal. The introduction of nitrogen atoms with appropriate proportion could improve MB adsorption capacity of the prepared mesoporous carbon (AC-N). AC-N obtained at optimized modification (1 ㏖/L urea) had an excellent MB adsorption of 910.95 ㎎/g and the removal efficiency was ca. 91% at 25℃. Elemental analysis showed that the nitrogen content of AC-N was high up to 2.6%. A large specific surface area (SBET) 1,215 ㎤/g and an obvious mesoporous structure with a high mesopore to total pore volume ratio (V<SUB>mes</SUB>/V<SUB>tot</SUB>) 91% was observed on AC-N. X-ray photoelectron spectroscopy (XPS) results indicated a successful doping of nitrogen element into the mesoporous carbon and pyridinic-N, pyrrolic-N and amino-N were existed in AC-N. Scanning electron microscope (SEM) and Fourier transform infrared spectrometry (FTIR) were also used to characterize this prepared adsorbent. MB adsorption kinetics parameters and isotherm results on the produced carbon were well fitted by the pseudo-second-order kinetic model and Langmuir model. According to the thermodynamic analysis, the adsorption of MB on AC-N was found to be an endothermic, spontaneous process in nature.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (44)
참고문헌 신청
Poormand H, Leili M, Khazaei M. Adsorption of methylene blue from aqueous solutions using water treatment sludge modified with sodium alginate as a low-cost adsorbent. Water Sci. Technol. 2017;75:281-295.
Mouni L, Belkhiri L, Bollinger J-C, et al. Removal of Methylene Blue from aqueous solutions by adsorption on Kaolin: Kinetic and equilibrium studies. Appl. Clay Sci. 2018;153:38-45.
Moussavi G, Yazdanbakhsh A, Heidarizad M. The removal of formaldehyde from concentrated synthetic wastewater using O-3/MgO/H2O2 process integrated with the biological treatment. J. Hazard. Mater. 2009;171:907-913.
Modirshahla N, Hassani A, Behnajady MA, Rahbarfam R. Effect of operational parameters on decolorization of Acid Yellow 23 from wastewater by UV irradiation using ZnO and ZnO/SnO2 photocatalysts. Desalination 2011;271:187-192.
Feng Y, Zhou H, Liu G, et al. Methylene blue adsorption onto swede rape straw (Brassica napus L.) modified by tartaric acid: Equilibrium, kinetic and adsorption mechanisms. Bioresour. Technol. 2012;125:138-144.
Mouni L, Belkhiri L, Bollinger J-C, et al. Removal of Methylene Blue from aqueous solutions by adsorption on Kaolin: Kinetic and equilibrium studies. Appl. Clay Sci. 2018;153:38-45.
Moussavi G, Yazdanbakhsh A, Heidarizad M. The removal of formaldehyde from concentrated synthetic wastewater using O-3/MgO/H2O2 process integrated with the biological treatment. J. Hazard. Mater. 2009;171:907-913.
Modirshahla N, Hassani A, Behnajady MA, Rahbarfam R. Effect of operational parameters on decolorization of Acid Yellow 23 from wastewater by UV irradiation using ZnO and ZnO/SnO2 photocatalysts. Desalination 2011;271:187-192.
Feng Y, Zhou H, Liu G, et al. Methylene blue adsorption onto swede rape straw (Brassica napus L.) modified by tartaric acid: Equilibrium, kinetic and adsorption mechanisms. Bioresour. Technol. 2012;125:138-144.
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