Photocatalytic degradation of methylene blue and catalytic reduction of 4-nitrophenol using green-synthesized silver nanoparticles from orange peel pectin

Pourmohammadi Mahunaki, Mohammadali; Meshkatalsadat, Mohammad Hadi; Momeni, Tayebeh

doi:10.61882/CNJ.3.3.696

Photocatalytic degradation of methylene blue and catalytic reduction of 4-nitrophenol using green-synthesized silver nanoparticles from orange peel pectin

Document Type : Original Article

Authors

Mohammadali Pourmohammadi Mahunaki ¹

Mohammad Hadi Meshkatalsadat ²

Tayebeh Momeni ²

¹ Department of Polymer Engineering, Faculty of Engineering, Qom University, Qom, Iran

² Department of Chemistry, Qom University of Technology, Qom, Iran

10.61882/CNJ.3.3.696

Abstract

Environmental contamination by organic pollutants, such as dyes and nitroaromatic compounds, poses significant health and ecological risks. In this study, pectin extracted from orange peels was utilized as a green reducing and stabilizing agent for the synthesis of silver nanoparticles (AgNPs). The generated nanoparticles were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Vis), and transmission electron microscopy (TEM). The result verified the formation of uniformly spherical nanoparticles with an average size of ~20–30 nm. Then, The catalytic activity of AgNPs toward the reduction of 4-nitrophenol (4-NP) in the presence of NaBH₄ as a reducing agent, as well as their photocatalytic activity in the degradation of methylene blue (MB) under visible-light irradiation, were investigated separately. The results demonstrated that, in the catalytic process, nearly complete conversion of 4-NP to 4-aminophenol (4-AP) was achieved within 15 min using 1 mL of AgNPs, while complete reduction occurred within 5 min when the catalyst amount was increased to 2 mL. In contrast, in the photocatalytic process, MB was efficiently degraded in the presence of AgNPs under visible-light irradiation, with a pronounced decrease in absorption intensity observed within 25 min, and the degradation efficiency increased with increasing AgNPs dosage. This study highlights that green synthesis of AgNPs using orange peel pectin is a simple, economically and environmentally friendly methods for the synthesis of photocatalytically active nanoparticles.

Graphical Abstract

Photocatalytic degradation of methylene blue and catalytic reduction of 4-nitrophenol using green-synthesized silver nanoparticles from orange peel pectin

Keywords

Pectin

Orange peel

Silver nanoparticles

Photocatalysis

Methylene blue

4-Nitrophenol

[1] M. Ahamed, M.M. Khan, M. Siddiqui, M.S. AlSalhi, S.A. Alrokayan, Physica E: Low-dimensional Systems and Nanostructures, 43 (2011) 1266-1271. https://doi.org/10.1016/j.physe.2011.02.014.

[2] N. Vigneshwaran, A. Kathe, P. Varadarajan, R. Nachane, R. Balasubramanya, J. nanosci. nanotech. 7 (2007) 1893-1897. https://doi.org/10.1166/jnn.2007.737.

[3] S. Kokura, O. Handa, T. Takagi, T. Ishikawa, Y. Naito, T. Yoshikawa, Nanomed. Nanotech. Bio. Med., 6 (2010) 570-574. https://doi.org/10.1016/j.nano.2009.12.002.

[4] F. Martinez-Gutierrez, P.L. Olive, A. Banuelos, E. Orrantia, N. Nino, E.M. Sanchez, F. Ruiz, H. Bach, Y. Av-Gay, Nanomedicine: Nanotechnology, Bio. Med. 6 (2010) 681-688. https://doi.org/10.1016/j.nano.2010.02.001.

[5] J.L. Elechiguerra, J.L. Burt, J.R. Morones, A. Camacho-Bragado, X. Gao, H.H. Lara, M.J. Yacaman, J. nanobiotech. 3 (2005) 1-10. https://doi.org/10.1186/1477-3155-3-6.

[6] K. Okitsu, A. Yue, S. Tanabe, H. Matsumoto, Y. Yobiko, Langmuir, 17 (2001) 7717-7720. https://doi.org/10.1021/la010414l.

[7] R.R. Naik, S.J. Stringer, G. Agarwal, S.E. Jones, M.O. Stone, Nat. mater., 1 (2002) 169-172. https://doi.org/10.1038/nmat758.

[8] A. Leela, M. Vivekanandan, Afr. J. Biotechnol., 7 (2008).

[9] A.D. Dwivedi, K. Gopal, Colloids Surf. A: Physicochem. Eng. Asp. 369 (2010) 27-33. https://doi.org/10.1016/j.colsurfa.2010.07.020.

[10] H. Bar, D.K. Bhui, G.P. Sahoo, P. Sarkar, S. Pyne, A. Misra, Colloids Surf. A: Physicochem. Eng. Asp. , 348 (2009) 212-216. https://doi.org/10.1016/j.colsurfa.2009.07.021.

[11] S.S. Shankar, A. Ahmad, M. Sastry, Biotech. prog. 19 (2003) 1627-1631. https://doi.org/10.1021/bp034070w.

[12] M. Dubey, S. Bhadauria, B. Kushwah, Dig J Nanomater Biostruct, 4 (2009) 537-543.

[13] S.P. Dubey, M. Lahtinen, M. Sillanpää, Process Biochem. 45 (2010) 1065-1071. https://doi.org/10.1016/j.procbio.2010.03.024.

[14] N. Ahmad, S. Sharma, M.K. Alam, V. Singh, S. Shamsi, B. Mehta, A. Fatma, Colloids Surf B: Biointerfaces, 81 (2010) 81-86. https://doi.org/10.1016/j.colsurfb.2010.06.029.

[15] D. Philip, Spectrochimica Acta Part A: Mol Biomol Spect.73 (2009) 374-381. https://doi.org/10.1016/j.saa.2009.02.037.

[16] A. Saxena, R. Tripathi, R. Singh, Dig J Nanomater Bios, 5 (2010) 427-432.

[17] L.R. Adetunji, A. Adekunle, V. Orsat, V. Raghavan, Food Hydrocoll, 62 (2017) 239-250. https://doi.org/10.1016/j.foodhyd.2016.08.015.

[18] Z.J. Kermani, A. Shpigelman, H.T.T. Pham, A.M. Van Loey, M.E. Hendrickx, Food Hydrocoll. 44 (2015) 424-434. https://doi.org/10.1016/j.foodhyd.2014.10.018.

[19] H. Bagherian, F.Z. Ashtiani, A. Fouladitajar, M. Mohtashamy, Chemical engineering and processing: Process Intensification, 50 (2011) 1237-1243. https://doi.org/10.1016/j.cep.2011.08.002.

[20] D. Sharma, A. Kumar, N. Singh, Biomass Conversion and Biorefinery, (2022) 1-32.