Green synthesis of silver nanoparticles using Thunbergia grandiflora flower extract and its catalytic action in reduction of Congo red dye

Research output: Contribution to journalConference article


This study reports, a rapid and low cost production of silver nanoparticles from AgNO3 using the aqueous extract of Thunbergia grandiflora flowers and their catalytic degradation of Congo red (CR) dye. UV-Visible spectrum displayed a characteristic peak at 430 nm. SEM analysis showed spherical nanoparticles. EDX spectrum displayed silver peak at 3.1 keV. XRD analysis showed a peak at 38.31°. FTIR analysis confirmed the specific functional groups which involved in the synthesis and stabilization of nanoparticles. A zeta potential value of -24.5 mV implied the negative surface charges. The nanoparticles displayed excellent catalytic effectiveness in the reduction of CR dye.

Original languageEnglish
Pages (from-to)39-42
Number of pages4
JournalMaterials Today: Proceedings
Publication statusPublished - 01-01-2019
Event2019 Advanced Materials for Clean Energy and Health Applications, AMCEHA 2019 - Jafna, Sri Lanka
Duration: 06-02-201908-02-2019


All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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