Open AccessSynthesis of TiO2-Ag composite through ultrasonic batch cleaning technique as a candidate for antifungal agent Phytophthora palmivora
Author(s) -
Abdul Haris Watoni,
Nur Arfa Yanti,
Sri Marlini,
Muhammad Zakir Muzakkar,
M Maulidiyah,
I Irwan,
Zul Arham,
Muhammad Nurdin
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1763/1/012070
Subject(s) - phytophthora palmivora , antifungal , nuclear chemistry , scanning electron microscope , materials science , composite number , ultrasonic sensor , chemistry , composite material , phytophthora , horticulture , microbiology and biotechnology , biology , physics , acoustics
In this work, TiO 2 -Ag composites have been synthesized through the Ultrasonic Batch Cleaning technique and applied as an antifungal candidate against Phytophthora palmivora . P . palmivora is a pod rot fungus on cacao plants. Physically, the successful synthesis of TiO 2 -Ag has been characterized by a change in the color of the precipitate from white to grey. This success was confirmed by Scanning Electron Microscopy (SEM) analysis, where the presence of Ag + ions made the TiO 2 surface more regular. The Ag + ion was evenly distributed on the TiO 2 surface and covers the large TiO 2 particles. The results of EDX analysis have shown that the % composition of TiO 2 -Ag was 93.22%, each consisting of Ti of 50.37%, O of 37.57%, and Ag of 5.25%. Based on the antifungal activity test, TiO 2 -Ag has good antifungal activity against P. palmivora . The minimum inhibitory level occurred at a concentration of 2.50%, while the minimum lethal rate occurred at a concentration of 4.88%.