Open AccessSilver Doped TiO2 Photocatalyst for Disinfection of E. coli and Microplastic Pollutant Degradation in Water
Author(s) -
Muhammad Haris,
A.M. Didit,
Muhammad Ibadurrohman,
. Setiadi,
Slamet Slamet
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.23255
Subject(s) - photocatalysis , dopant , degradation (telecommunications) , chemistry , pollutant , microorganism , nuclear chemistry , doping , environmental chemistry , chemical engineering , catalysis , materials science , bacteria , organic chemistry , telecommunications , optoelectronics , biology , computer science , genetics , engineering
Present study report the synthesis of Ag/TiO2 catalyst to study its ability to disinfect the pathogenicmicroorganisms and degrade into micropollutants in water. The Ag/TiO2 was synthesized byphotoassisted deposition (PAD) method. The ratio of silver dopant varied (1%, 3% and 5%) to thetotal weight of the composite. The SEM-EDX, UV-Vis DRS and XRD techniques were used tocharacterize and determine the influence of silver dopant on the TiO2 structure. In this study, themicroorganism used was Escherichia coli and the microplastic used was polyethylene. During thephotocatalytic process under ultraviolet light irradiation, a magnetic stirrer was used at 2000 rpm. Theperformance of photocatalyst in E. coli disinfection and microplastic degradation improved by theaddition of silver dopant. The 3% silver dopant has optimum performance with 79% of microbialdisinfection within 2 h and 81% microplastic degradation within 4 h.