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graphene quantum dot incorporation in the zeolitic imidazolate framework: synthesis and improving the adsorption ability in liquid phase
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DOR
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20.1001.2.0021079099.1400.8.1.49.9
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نویسنده
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mahmoodi n.m.
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منبع
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كنگره بين المللي رنگ و پوشش - 1400 - دوره : 8 - کنگره بین المللی رنگ و پوشش - کد همایش: 00210-79099 - صفحه:1 -1
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چکیده
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The combination of zero-dimensional graphene quantum dots (gqds) with three-dimensional metal-organic frameworks (zif-8) improves the resulting nanocomposite properties.the characteristics of synthesized nanomaterials were confirmed by ftir, xrd, tga, bet, raman, sem, and hrtem. the removal of soluable dye was investigated to compare the adsorption properties of nanocomposite with pristine gqd and zif-8. the effects of gqd loading dose in composite (2-20%), adsorbents dosage (0.7-2.5 mg), initial dye concentration (20-50 mg/l), and the ph of mg, solution (4-7) as the influential parameters on pollutant removal were investigated. this process was in good agreement with the pseudo-second-order kinetics and the langmuir isotherm model
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کلیدواژه
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zeolitic imidazolate framework ,graphene quantum dot ,hybrid nanocomposites ,adsorption process ,cationic dye
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آدرس
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azarbaijan shahid madani university, iran, institute for color science and technology, department of environmental research, iran, , iran
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Graphene quantum dot incorporation in the zeolitic imidazolate framework: Synthesis and improving the adsorption ability in liquid phase
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Authors
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Mahmoodi N.M.
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Abstract
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The combination of zero-dimensional graphene quantum dots (GQDs) with three-dimensional metal-organic frameworks (ZIF-8) improves the resulting nanocomposite properties.The characteristics of synthesized nanomaterials were confirmed by FTIR, XRD, TGA, BET, Raman, SEM, and HRTEM. The removal of soluable dye was investigated to compare the adsorption properties of nanocomposite with pristine GQD and ZIF-8. The effects of GQD loading dose in composite (2-20%), adsorbents dosage (0.7-2.5 mg), initial dye concentration (20-50 mg/L), and the pH of MG, solution (4-7) as the influential parameters on pollutant removal were investigated. This process was in good agreement with the pseudo-second-order kinetics and the Langmuir isotherm model
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Keywords
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Zeolitic imidazolate framework ,Graphene Quantum dot ,Hybrid nanocomposites ,Adsorption process ,Cationic dye
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