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Dergiler / Journal of the Turkish Chemical Society Section A: Chemistry / 2022 / Cilt: 9 - Sayı: 3

Isotherm and thermodynamic studies on the removal of gelatin-stabilized silver nanoparticles from water by activated carbon

Ayşenur CERYAN
Nurettin ELTUĞRAL
Sayfa
919–938
Yayın Tarihi
2022-08-31
DOI
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Thermodynamic parameters such as enthalpy (66.77 kJ mol-1), entropy (232.92 J mol-1 K-1), and Gibbs free energy (–8.31 kJ mol-1) indicated that the process is endothermic, favorable and spontaneous through physical interactions.

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Amaç & Hipotez:Gelatin-stabilized silver nanoparticles (AgNPs) with a particle size of 6.9 (±3.2) nm were synthesized and employed in nanoparticle adsorption onto activated carbon (AC).
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Temel Bulgular & Veri:AgNPs possessed colloidal stability at a wide pH interval ranging between 4 and 13.
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Sonuç & Katkı:Thermodynamic parameters such as enthalpy (66.77 kJ mol-1), entropy (232.92 J mol-1 K-1), and Gibbs free energy (–8.31 kJ mol-1) indicated that the process is endothermic, favorable and spontaneous through physical interactions.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Silver nanoparticles · gelatin · activated carbon

Abstract

Gelatin-stabilized silver nanoparticles (AgNPs) with a particle size of 6.9 (±3.2) nm were synthesized and employed in nanoparticle adsorption onto activated carbon (AC). Subsequently, the synthesized AgNPs and the adsorbed nanoparticles onto the AC (AgNP@AC) were characterized by various techniques including UV–Vis spectrophotometry, transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT–IR) and X–ray diffraction (XRD). AgNPs possessed colloidal stability at a wide pH interval ranging between 4 and 13. Adsorption was studied batch-wise as a function of initial nanoparticle concentration (4–14 mg L-1), temperature (298–323 K), pH (4–13) and adsorbent dosage (0.01–0.05 g). Adsorption isotherms were investigated by fitting the data to different isotherm models including Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich (D–R). Error analysis indicated that the adsorption is well described by the Langmuir model with a monolayer adsorption capacity of 10.36 mg g-1 for 0.05 g AC at pH 7 and 323 K. Thermodynamic parameters such as enthalpy (66.77 kJ mol-1), entropy (232.92 J mol-1 K-1), and Gibbs free energy (–8.31 kJ mol-1) indicated that the process is endothermic, favorable and spontaneous through physical interactions.

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Bu Makaleye Atıf Yap

CERYAN, A., ELTUĞRAL, N. (2022). Isotherm and thermodynamic studies on the removal of gelatin-stabilized silver nanoparticles from water by activated carbon. Journal of the Turkish Chemical Society Section A: Chemistry, Cilt: 9 - Sayı: 3, 919–938. https://ajindex.com/articles/781025

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Kaynakça (13)

  1. García-Barrasa J, López-De-luzuriaga JM, Monge M. Silver nanoparticles: Synthesis through chemical methods in solution and biomedical applications. Cent Eur J Chem. 2011;9(1):7–19
  2. Calderón-Jiménez B, Johnson ME, Montoro Bustos AR, Murphy KE, Winchester MR, Baudrit JRV. Silver nanoparticles: Technological advances, societal impacts, and metrological challenges. Front Chem. 2017;5(Feb):1–26
  3. Sivera M, Kvitek L, Soukupova J, Panacek A, Prucek R, Vecerova R, et al. Silver nanoparticles modified by gelatin with extraordinary pH stability and long-term antibacterial activity. PLoS One. 2014;9(8)
  4. Seoudi R, Shabaka A, El Sayed ZA, Anis B. Effect of stabilizing agent on the morphology and optical properties of silver nanoparticles. Phys E Low-Dimensional Syst Nanostructures. 2011;44(2):440–7
  5. Alarcon EI, Bueno-Alejo CJ, Noel CW, Stamplecoskie KG, Pacioni NL, Poblete H, et al. Human serum albumin as protecting agent of silver nanoparticles: Role of the protein conformation and amine groups in the nanoparticle stabilization. J Nanoparticle Res. 2013;15(1)
  6. Salgueiriño-Maceira V, Correa-Duarte MA, Farle M, López-Quintela MA, Sieradzki K, Diaz R. Synthesis and characterization of large colloidal cobalt particles. Langmuir. 2006;22(4):1455–8
  7. Campos AM, Raymundo-Pereira PA, Cincotto FH, Canevari TC, Machado SAS. Sensitive determination of the endocrine disruptor bisphenol A at ultrathin film based on nanostructured hybrid material SiO2/GO/AgNP. J Solid State Electrochem. 2016;20(9):2503–7
  8. Mdluli PS, Revaprasadu N. An improved N,N-dimethylformamide and polyvinyl pyrrolidone approach for the synthesis of long silver nanowires. J Alloys Compd. 2009;469(1–2):519–22
  9. Kashiwagi Y, Yamamoto M, Nakamoto M. Facile size-regulated synthesis of silver nanoparticles by controlled thermolysis of silver alkylcarboxylates in the presence of alkylamines with different chain lengths. J Colloid Interface Sci. 2006;300(1):169–75
  10. Brust M, Kiely CJ. Some recent advances in nanostructure preparation from gold and silver particles: A short topical review. Colloids Surfaces A Physicochem Eng Asp. 2002;202(2–3):175–86
  11. Bunge SD, Boyle TJ, Headley TJ. Synthesis of coinage-metal nanoparticles from mesityl precursors. Nano Lett. 2003;3(7):901–5
  12. Pastoriza-Santos I, Liz-Marzán LM. Formation of PVP-protected metal nanoparticles in DMF. Langmuir. 2002;18(7):2888–94
  13. Ahmad M Bin, Lim JJ, Shameli K, Ibrahim NA, Tay MY. Synthesis of silver nanoparticles in c