Journal of Cluster Science

, Volume 28, Issue 4, pp 2279–2291 | Cite as

Bio-Synthesis of Silver Nanoparticles Using Agroforestry Residue and Their Catalytic Degradation for Sustainable Waste Management

  • K. Anand
  • K. Kaviyarasu
  • Sudhakar Muniyasamy
  • Selvaraj Mohana Roopan
  • R. M. Gengan
  • A. A. Chuturgoon
Original Paper


The sustainable synthesis of nanoparticles provides an eco-friendly and interesting approach in the domain of clean synthesis and nanobiotechnology. The in vitro synthesis of silver nanoparticles from the aqueous extract of an indigenous South African plant: Ekebergia capensis is reported in this paper. The rapid fabrication of Ag NPs were observed by visual colour and was confirmed using UV spectroscopy; the emergence of a yellow–brownish colour confirmed the yield of silver nanoparticles. Also, a time course study on the effect of concentration of AgNO3 was undertaken. The synthesized Ag NPs was characterized by TEM, XRD, and DLS whilst, FTIR and GC–MS provided information on the functional groups adhered to the surface of the Ag NPs. The XRD peak of synthesized Ag NPs showed their crystalline structure. DLS and TEM studies revealed spherical or near spherically shaped Ag NPs of particle size 20–120 nm. Furthermore, the catalytic performance of Ag NPs in the degradation of Allura red (AR) and Congo red (CR) were characterised by UV spectrophotometry. The Silver nanoparticles were observed to have excellent catalytic properties on the degradation of AR and CR which is confirmed by the dyes mineralized in λmax values. The catalytic process involved the electrons relay effect and is attributed with time.


Ekebergia capensis Azo dye Silver nanoparticles Congo red Allura red GC–MS 



All the authors acknowledged towards National Research Foundation (NRF) and Durban University of Technology (DUT) for funding this project, Durban, South Africa.

Compliance with Ethical Standards

Conflict of interest

The authors confirm that there are no known conflicts of interest regarding this publication.

Supplementary material

10876_2017_1212_MOESM1_ESM.docx (149 kb)
Supplementary material 1 (DOCX 148 kb)


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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Discipline of Medical Biochemistry and Chemical Pathology, School of Laboratory Medicine and Medical Sciences, College of Health SciencesUniversity of KwaZulu-NatalDurbanSouth Africa
  2. 2.UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate StudiesUniversity of South Africa (UNISA)PretoriaSouth Africa
  3. 3.CSIR Materials Science and Manufacturing, Polymers and Composites Competence AreaPort ElizabethSouth Africa
  4. 4.Department of Textile Science, Faculty of ScienceNelson Mandela Metropolitan UniversityPort ElizabethSouth Africa
  5. 5.Department of ChemistrySAS, VIT UniversityVelloreIndia
  6. 6.Department of Chemistry, Faculty of Applied SciencesDurban University of TechnologyDurbanSouth Africa

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