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- 저자 : Tabrizi N. Salman (검색결과 2 건)
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Performance of CNT-CNP aerogel as electrode in capacitive deionization system
Tabrizi N. Salman,Taleghani M. Salehi 한국탄소학회 2023 Carbon Letters Vol.33 No.4
In this study, hybrid aerogels containing carbon nanoparticles (CNP) and multi-walled carbon nanotubes (MWCNT) were synthesized via sol–gel method using resorcinol/formaldehyde precursors through a hydrolysis-condensation reaction mechanism. Porous carbonaceous structures were achieved by freeze-drying of the organic gels followed by controlled carbonization under an inert gas. The samples were characterized by various techniques such as FTIR, BJH, FESEM, CV, and EIS. The specific surface area and total pore volume of the aerogel sample were measured to be as high as 452 m2/g and 0.782 cm3/g, respectively, thus enhancing the electric double-layer formation. Electrochemical tests on the samples showed a large specific capacitance (212 F/g) and an excellent cyclic stability over 3000 cycles. Performance of the synthesized structures was subsequently assessed as electrodes in a capacitive deionization (CDI) process. At the operating conditions of 1.6 V voltage, flow rate of 20 mL/min, and NaCl concentration of 1000 mg/L a promising adsorption capacity around 42.08 mg/g was achieved.
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H. Hajishafiee,P. Sangpour,N. Salman Tabrizi 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2015 NANO Vol.10 No.5
In this study, WO3–rGO nanocomposites were synthesized via a facile chemical method followed by a calcination process. The samples were characterized by UV-Vis spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy, BET technique, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results confirmed the formation of the nanocomposites. Photocatalytic activity of the synthesized samples was evaluated in degradation of 1-naphthol as a polycyclic aromatic pollutant under irradiation of xenon lamp. The concentration of the pollutant was measured by high performance liquid chromatography (HPLC). Efficient photocatalytic performance was observed and the kinetics data were well described by Langmuir – Hinshelwood model.
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