Abstract

In this study, ZnO-Ag nanocomposites with different Ag loadings have been successfully synthesized by spray pyrolysis using nitrogen as a carrier gas. The Ag loading with various concentrations from 0 to 10 %wt was doped to the ZnO particles. The performance of products, ZnO-Ag nanocomposites, was subsequently tested by measuring the photocatalytic degradation of organic waste from the textile dye. Morphology, crystallite size and crystalline phase, surface area and functional group of hydroxyl of the produced nanocomposites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) and Fourier Transform Infrared Spectroscopy (FTIR), respectively. SEM images indicated that the average particle size of the nanocomposite measured by ImageJ software increased with increasing Ag loading. The average size of nanocomposite with Ag loading at 0, 1, 5, and 10 %wt were 784, 850, 856 and 954 nm, respectively. The XRD results detected the existence of Ag in ZnO-Ag nanocomposite. However, the addition of Ag in the nanocomposite did not alter the crystallite size significantly, where the crystallite size was found approximately around 18 to 57 nm. Moreover, BET analysis showed the increase of specific surface area with increasing Ag content in exception for Ag content at 5 %wt. Finally, ultraviolet (UV) light was used as an irradiation source to evaluate the performance of photocatalytic degradation of textile-dye-waste from the textile industry in Gresik-Indonesia. The results showed that Ag loading at 5 %wt produced the highest degradation efficiency among the other concentrations including the pristine ZnO. This research resulted in a simple and effective route for fabricating ZnO-Ag nanocomposite; therefore, it can be considered as a potential candidate for the direct application in degradation of textile-dye-waste.

Original languageEnglish
Title of host publication2nd International Conference and Exhibition on Powder Technology, ICePTi 2019
EditorsI. Made Joni, Camellia Panatarani, Danar Praseptiangga
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419759
DOIs
Publication statusPublished - 5 May 2020
Event2nd International Conference and Exhibition on Powder Technology, ICePTi 2019 - Solo, Indonesia
Duration: 20 Aug 201921 Aug 2019

Publication series

NameAIP Conference Proceedings
Volume2219
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Conference and Exhibition on Powder Technology, ICePTi 2019
Country/TerritoryIndonesia
CitySolo
Period20/08/1921/08/19

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