On the adsorption kinetics and mechanism of enhanced photocatalytic activity of Fe 3 O 4 ‐SiO 2 ‐TiO 2 core‐multishell nanoparticles against E. coli

2020 ◽  
Vol 109 (2) ◽  
pp. 181-192
Author(s):  
Naeemeh Esfandiari ◽  
Mehrdad Kashefi ◽  
Mostafa Mirjalili ◽  
Sima Afsharnezhad
Keyword(s):  
Photocatalytic Activity ◽  
Adsorption Kinetics ◽  
Kinetics And Mechanism ◽  
E Coli

A novel AgI/BiOI/pg-C3N4 composite with enhanced photocatalytic activity for removing methylene orange, tetracycline and E. coli

2020 ◽  
Vol 177 ◽  
pp. 108253 ◽  
Author(s):  
Ding Yuan ◽  
Liying Huang ◽  
Yeping Li ◽  
Hao Wang ◽  
Xiuquan Xu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
E Coli ◽  
Methylene Orange

scholarly journals 1D TiO2 Nanostructures Prepared from Seeds Presenting Tailored TiO2 Crystalline Phases and Their Photocatalytic Activity for Escherichia coli in Water

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Julieta Cabrera ◽  
Dwight Acosta ◽  
Alcides López ◽  
Roberto J. Candal ◽  
Claudia Marchi ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Photocatalytic Activity ◽  
Bactericidal Activity ◽  
Sol Gel ◽  
Titanium Isopropoxide ◽  
E Coli ◽  
1D Nanostructures ◽  
Sol Gel Synthesis ◽  
Hydrolysis Of ◽  
Tio2 Nanostructures

TiO2 nanotubes were synthesized by alkaline hydrothermal treatment of TiO2 nanoparticles with a controlled proportion of anatase and rutile. Tailoring of TiO2 phases was achieved by adjusting the pH and type of acid used in the hydrolysis of titanium isopropoxide (first step in the sol-gel synthesis). The anatase proportion in the precursor nanoparticles was in the 3–100% range. Tube-like nanostructures were obtained with an anatase percentage of 18 or higher while flake-like shapes were obtained when rutile was dominant in the seed. After annealing at 400°C for 2 h, a fraction of nanotubes was conserved in all the samples but, depending on the anatase/rutile ratio in the starting material, spherical and rod-shaped structures were also observed. The photocatalytic activity of 1D nanostructures was evaluated by measuring the deactivation of E. coli in stirred water in the dark and under UV-A/B irradiation. Results show that in addition to the bactericidal activity of TiO2 under UV-A illumination, under dark conditions, the decrease in bacteria viability is ascribed to mechanical stress due to stirring.

scholarly journals Adsorption kinetics and mechanism of di‐ n ‐butyl phthalate by Leuconostoc mesenteroides

2020 ◽  
Vol 8 (11) ◽  
pp. 6153-6163
Author(s):  
Lili Zhao ◽  
Xinlei Li ◽  
Qingxiang Yang ◽  
Di Zhuang ◽  
Xin Pan ◽  
...  
Keyword(s):  
Adsorption Kinetics ◽  
Leuconostoc Mesenteroides ◽  
Kinetics And Mechanism ◽  
Butyl Phthalate

Adsorption kinetics and mechanism of maxilon blue 5G dye on sepiolite from aqueous solutions

2008 ◽  
Vol 139 (2) ◽  
pp. 213-223 ◽  
Author(s):  
M. Alkan ◽  
M. Doğan ◽  
Y. Turhan ◽  
Ö. Demirbaş ◽  
P. Turan
Keyword(s):  
Aqueous Solutions ◽  
Adsorption Kinetics ◽  
Kinetics And Mechanism

Use of chabazite, a naturally abundant zeolite, for the investigation of the adsorption kinetics and mechanism of methylene blue dye

2016 ◽  
Vol 235 ◽  
pp. 78-86 ◽  
Author(s):  
Hamza Aysan ◽  
Serpil Edebali ◽  
Celalettin Ozdemir ◽  
Muazzez Celi̇k Karakaya ◽  
Necati Karakaya
Keyword(s):  
Methylene Blue ◽  
Adsorption Kinetics ◽  
Kinetics And Mechanism ◽  
Blue Dye ◽  
Methylene Blue Dye

scholarly journals Enhanced Photocatalytic and Antibacterial Performance of ZnO Nanoparticles Prepared by an Efficient Thermolysis Method

Catalysts ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 608 ◽  
Author(s):  
Md. Hanif ◽  
Insup Lee ◽  
Jeasmin Akter ◽  
Md. Islam ◽  
Ali Zahid ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Zno Nanoparticles ◽  
Zinc Acetate Dihydrate ◽  
Hexagonal Wurtzite Structure ◽  
Thermal Method ◽  
X Ray Diffraction ◽  
Zno Nps ◽  
E Coli ◽  
Antibacterial Performance ◽  
Short Time

ZnO nanoparticles (ZnO-NPs) were synthesized by a straightforward modified thermal method using only one chemical: zinc acetate dihydrate. The process is environmentally safer than other methods because it does not involve other chemicals or a catalyst, acid, or base source. X-ray diffraction analysis indicated that the ZnO-NPs crystallize in the hexagonal wurtzite structure. The UV–vis absorption spectra revealed a marked redshift, which is critical for enhanced photocatalytic activity. We used methylene blue for photocatalytic activity tests and found an excellent degradation percentage (99.7%) within a short time (80 min). The antibacterial activity of the synthesized ZnO-NPs was tested against Escherichia coli at different concentrations of ZnO-NPs. The analysis revealed that the minimum inhibitory concentration (MIC) of the ZnO-NPs against E. coli was 30–50 μg/mL. Our ZnO-NPs were found to be more effective than previously reported ZnO-NPs synthesized via other methods.

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