نویسندگان
1 گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه محقق اردبیلی، اردبیل
2 گروه علوم و مهندسی صنایع غذایی، دانشگاه آزاد اسالمی واحد سراب
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The aim of this study was the evaluation of the antibacterial effect of Zn-doped TiO2 nanoparticles immobilized on the bentonite prepared via molten salt method. The prepared nanocomposites were characterized by scanning electron microscope SEM, X-ray diffraction XRD, Energy-dispersive X-ray spectroscopy EDX, UV-Vis diffusive reflectance spectrometer UV-Vis DRS. SEM was showed that agglomeration of TiO2 nanoparticles formed on the bentonite surface. The band gap energy of TiO2 nanoparticles and TiO2/bentonite was about 3.25 eV. After doping of 5 and 10 Zn, the band gap was decreased to 3.2 and 3.17 eV, respectively. According to XRD results, the crystalline phase of the TiO2 nanoparticles in all of the nanocomposites was anatase. The crystalline size of nanoparticles was less than 50 nm. Finally, doping of Zn in the nanocomposites increased their antibacterial activity.
کلیدواژهها [English]
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