An in-situ approach to cyanobacterial harmful algal blooms degradation of microcystin-LR cyanotoxins using TiO2 photocatalysts coated on nylon mesh supports
نویسندگان
چکیده
Dispersed and immobilized photocatalytic titanium dioxide (TiO2) nanoparticles were investigated for the removal of microcystin-LR (MC-LR) cyanotoxin in water. TiO2 concentrations (0.25 g/L, 0.025 0.0025 0 g/L) compared to coated on nylon net supports uncoated nets determine MC-LR degradation performance. Adsorption onto dispersed was tested 1 h prior ultraviolet (UV) light exposure, maximum adsorption observed 1%. With UV 0.25 g/L degraded by 99% over a 2-hour time period, while did not cause significant removal. spray 2x, 5x, 8x with Nafion-TiO2 composite stability, where 2x lacked attachment stability 5x net. testing resulted 0% 13% adsorption, respectively. The removed 96%, 64%, 10% UV, indirect no exposure 2 h. fit pseudo first-order kinetics, rate constants k = 0.0375 min-1 0.0264 nets, Overall, study indicated photocatalysts are comparable provide an immobilization approach in-situ nanoparticles.
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ژورنال
عنوان ژورنال: Journal of environmental chemical engineering
سال: 2022
ISSN: ['2213-2929', '2213-3437']
DOI: https://doi.org/10.1016/j.jece.2022.108301