2, 4, 6-Trithiol-1, 3, 5-Triazine-Modified Gold Nanoparticles and Its Potential as Formalin Detector

Yoki Yulizar, H. A. Ariyanta, L. Rakhmania, M. A.E. Hafizah

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

Stabilized gold nanoparticles (AuNP) have been successfully prepared by a modification of ligand 2, 4, 6-trithiol-1, 3, 5-triazine (TT). TT has three thiol groups and nitrogen atoms on the aromatic ring that can interact and stabilize AuNP. TT modified AuNP (AuNP/TT) was characterized using UV-Vis spectrophotometer, particle size analyzer (PSA) and transmission electron microscopy (TEM). The characterization showed that AuNP/TT stable at a maximum wavelength (λmaks) of 537 nm with the particle diameter of 9.41 nm. The increased acidity (pH) causes the protonated thiol groups of TT marked with a visual change of colloidal AuNP/TT from purple to blue, causing AuNP and TT bonds weakened. In this study, the AuNP/TT was reacted with formalin. This interaction shows that AuNP/TT has a potential as an efficient detector of formalin, marked by changes in the diameter of the particle, colloidal color, and maximum wavelength shift.

Original languageEnglish
Article number012072
JournalIOP Conference Series: Materials Science and Engineering
Volume349
Issue number1
DOIs
Publication statusPublished - 2 May 2018
Event12th Joint Conference on Chemistry, JCC 2017 - Semarang, Indonesia
Duration: 19 Sep 201720 Sep 2017

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