Green Synthesis and Characterization of Core-Shell Fullerene-Silver Hybrid Nanocomposite by means of Citric Acid

Document Type : Original Research Paper

Authors

1 Department of Chemistry, Faculty of Basic Sciences, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran

2 Department of Applied Chemistry, Faculty of Gas and Petroleum, Yasouj University, Gachsaran, Iran

10.22111/cnmst.2026.54447.1278

Abstract

Hybrid nanomaterials combining metals with fullerene provide unique synergistic properties, enabling the development of a new generation of advanced materials. This study reports the green synthesis and comprehensive characterization of a novel core-shell hybrid nanomaterial composed of silver nanoparticles (Ag NPs) encapsulated within a fullerene-citric acid (FCA) nanocomposite matrix. The FCA nanocomposite was first synthesized via two distinct pathways: a conventional thermal method and a greener enzymatic approach utilizing Novozym 435. This FCA product served a dual function as both a reducing agent and a stabilizer in the subsequent synthesis of silver nanoparticles from silver nitrate. Successful formation of the ester bond in FCA was confirmed by FT-IR spectroscopy, showing a characteristic peak around 1730 cm⁻¹. UV-Vis spectroscopy of the final hybrid revealed two key absorption peaks, one at ~268 nm corresponding to the π-π* transitions of the fullerene moiety and a distinct surface plasmon resonance (SPR) band at ~423 nm, confirming the formation of Ag NPs. Electron microscopy (FESEM and TEM) analysis demonstrated spherical nanoparticles with an average size of approximately 25 nm and provided clear evidence of the core-shell structure, where Ag NPs form the core surrounded by the FCA shell. The presented methodology offers an efficient route to stable fullerene-metal hybrid nanostructures with potential for advanced applications in catalysis, sensing, and biomedicine.

Keywords

References

[1] Saxena S, Srivastava AK. Carbon nanotechnology: engineering the future, atom by atom. 2025.

[2] Itami K, Maekawa T. Molecular nanocarbon science: present and future. Nano Lett. 2020;20:4718–20.

[3] Liu Z, Zhang Q, Zhang B. Carbon catalysis. Boca Raton: CRC Press; 2024.

[4] Li Z, Li B, Yu C, Wang H, Li Q. Recent progress of hollow carbon nanocages: general design fundamentals and diversified electrochemical applications. Adv Sci. 2023;10(7):2206605.

[5] Thakur VK, Thakur M. Chemical functionalization of carbon nanomaterials. Waretown (NJ): CRC Press; 2018.

[6] Lopez AM, Mateo-Alonso A, Prato MJJoMC. Materials chemistry of fullerene C60 derivatives. J. Mater. Chem. 2011;21(5):1305-18.

[7] Dai L. Advanced syntheses and microfabrications of conjugated polymers, C60‐containing polymers and carbon nanotubes for optoelectronic applications. Polym. Adv. Technol. 1999;10(7):357-420.

[8] Xu Z, Wang Y, Li Y, Wang Y, Peng B, Davey K, et al. C60 and derivatives boost electrocatalysis and photocatalysis: Electron buffers to heterojunctions. Adv. Energy Mater. 2023;13(46):2302438.

[9] Montellano A, Da Ros T, Bianco A, Prato M. Fullerene C 60 as a multifunctional system for drug and gene delivery. Nanoscale, 2011;3(10):4035-41.
[10] Kumar M, Raza K. C60-fullerenes as drug delivery carriers for anticancer agents: promises and hurdles. Pharm Nanotechnol. 2017;5(3):169–79.

[11] Wilson LJ. Medical applications of fullerenes and metallofullerenes. The Electrochemical Society Interface. 1999;8(4):24–28.

[12] Moussa F. [60] Fullerene and derivatives for biomedical applications. J Nanomed Nanotechnol. 2018;:113–136.

[13] Craciun AM, Focsan M, Magyari K, Vulpoi A, Pap Z. Surface plasmon resonance or biocompatibility—key properties for determining the applicability of noble metal nanoparticles. Materials. 2017;10(7):836.

[14] Yaqoob SB, Adnan R, Rameez Khan RM, Rashid M. Gold, silver, and palladium nanoparticles: a chemical tool for biomedical applications. Front Chem. 2020;8:376.

[15] Abbas R, Luo J, Qi X, Naz A, Khan IA, Liu H, et al. Silver nanoparticles: Synthesis, structure, properties and applications. Nanomaterials. 2024;14(17):1425.

[16] Liu M, Guyot-Sionnest P. Synthesis and optical characterization of Au/Ag core/shell nanorods. J Phys Chem B. 2004;108(19):5882–8.

[17] Tsai C-H, Chen S-Y, Song J-M, Chen I-G, Lee H-Y. Thermal stability of Cu@Ag core–shell nanoparticles. Colloid Surf A Physicochem Eng Asp. 2013;417:123–9.

[18] Monteiro B, Simões S. Recent advances in hybrid nanocomposites for aerospace applications. Nanomaterials. 2024;14(11):1283.

[19] Wang D, Saleh NB, Sun W, Park CM, Shen C, Aich N, et al. Next-generation multifunctional carbon–metal nanohybrids for energy and environmental applications. Environ Sci Technol. 2019;53(13):7265–87.

[20] Grandolfo A. Graphene-based nanostructures and colloidal silver coatings for flexible cellulose substrates. 2025.

[21] Singh P, Singh S, Maddiboyina B, Kandalam S, Walski T, Bohara RA. Hybrid silver nanoparticles: modes of synthesis and various biomedical applications. J Eng. 2024;2(2):e22.

[22] Biswas K, Mishra AK, Rauta PR, Al-Sehemi AG, Pannipara M, Sett A, et al. Exploring the bioactive potentials of C60-AgNPs nano-composites against malignancies and microbial infections. Molecules. 2022;23(2):714.

[23] Almeman AA. Evaluating the efficacy and safety of alpha-hydroxy acids in dermatological practice: a comprehensive clinical and legal review. J Cosmet Dermatol. 2024:1661–85.

[24] Vorobyova V, Skiba M, Anastasiya K, Vasyliev G. The type III deep eutectic solvents: physicochemical properties and applications for the extraction of value-added compounds from spent coffee grounds. Waste Biomass Valorization. 2025;16(4):1821–37.

[25] Baskar AV, Benzigar MR, Talapaneni SN, Singh G, Karakoti AS, Yi J, et al. Self-assembled fullerene nanostructures: synthesis and applications. Adv Funct Mater. 2022;32(6):2106924.

[26] Afreen S. Ultrasonic dispersal of buckminsterfullerene (C60) leads to the formation of 8-hydroxy fullerenol: synthesis and application[thesis]. Nottingham: University of Nottingham; 2018.

[27] Farhan M, Hasani IW, Khafaga DS, Ragab WM, Ahmed Kazi RN, Aatif M, et al. Enzymes as catalysts in industrial biocatalysis: advances in engineering, applications, and sustainable integration. Catalysts. 2025;15(9):891.

[28] Alves GC, Ladeira LO, Righi A, Krambrock K, Calado HD, Gil RPdF, et al. Synthesis of C60(OH)18-20 in aqueous alkaline solution under O2 atmosphere. Fuller Nanotub Carbon Nanostruct. 2006;14(4–6):1186–90.

[29] Chook KY, Aroua MK, Gew LT. Enzyme biocatalysis for sustainability applications in reactors: a systematic review. Environ Chem Res. 2023;62(28):10800–12.

[30] Nierengarten J-F. Chemical modification of C60 for materials science applications. New J Chem. 2004;28(10):1177–91.

[31] Castro E, Garcia AH, Zavala G, Echegoyen L. Fullerenes in biology and medicine. J Mater Chem B. 2017;5(32):6523–35.

[32] Kausar A. Polymer/fullerene nanocomposites: design and applications. Amsterdam: Elsevier; 2023.

[33] Zhang X-F, Liu Z-G, Shen W, Gurunathan S. Silver nanoparticles: synthesis, characterization, properties, applications, and therapeutic approaches. Int J Mol Sci. 2016;17(9):1534.

[34] Liao C, Li Y, Tjong SC. Bactericidal and cytotoxic properties of silver nanoparticles. Int J Mol Sci. 2019;20(2):449.

[35] Dhand C, Dwivedi N, Loh XJ, Ying ANJ, Verma NK, Beuerman RW, et al. Methods and strategies for the synthesis of diverse nanoparticles and their applications: a comprehensive overview. RSC Adv. 2015;5(127):105003–37.

[36] Kroto HW, Heath JR, O’Brien SC, Curl RF, Smalley RE. C60: buckminsterfullerene. Nature. 1985;318(6042):162–3.

[37] Goodarzi S, Da Ros T, Conde J, Sefat F, Mozafari M. Fullerene: biomedical engineers get to revisit an old friend. Mater Today. 2017;20(8):460–80.

[38] Alegaonkar AP, Alegaonkar PS. Nanocarbons: preparation, assessments, and applications. Boca Raton: CRC Press; 2023.

[39] Khan I, Saeed K, Khan I. Nanoparticles: properties, applications and toxicities. Arab J Chem. 2019;12(7):908–31.
Challenges in Nano and Micro Scale Science and Technology
Volume 13, Issue 1
March 2025
Pages 9-14

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