@article {27666,
	title = {Facile synthesis of magnetic Fe3O4@BiOI@AgI for water decontamination with visible light irradiation: Different mechanisms for different organic pollutants degradation and bacterial disinfection},
	journal = {Water Research},
	volume = {137},
	year = {2018},
	pages = {120-129},
	publisher = {Elsevier Ltd},
	type = {Article},
	abstract = {Magnetic Fe3O4@BiOI@AgI (FBA) spheres were synthesized through a multi-step process. The fabricated photocatalysts were characterized by different techniques. To testify the visible light driven photocatalytic activity of FBA, Rhodamine B and Bisphenol A were chosen as model common and emerging organic contaminants, respectively. While, gram-negative strain Escherichia coli was selected as model waterborne bacteria. The results showed that under visible light irradiation, FBA contained strong photocatalytic degradation capacity towards both RhB and BPA. Moreover, FBA was also found to exhibit excellent disinfection activity towards E. coli. The photocatalytic mechanisms for different pollutants by FBA were determined and found to vary for different pollutants. Specifically, scavenger experiments, degradation intermediates determination, as well as theoretical density functional theory (DFT) analysis showed that RhB and BPA were degraded via photosensitization (dominated by e- and {\textperiodcentered}O2-) and direct photocatalytic oxidation (contributed by h+, e- and {\textperiodcentered}O2-), respectively. Whereas, E. coli cells yet were found to be inactivated by the generation of e- and {\textperiodcentered}O2- rather than by the released Ag+. Since it contained superparamagnetic property, FBA could be easily separated from the reaction suspension after use. Due to the excellent photo stability, FBA exhibited strong photocatalytic activity in the fourth reused recycle. Therefore, FBA could serve as a promising alternative for water purification. {\textcopyright} 2018 Elsevier Ltd},
	keywords = {\&amp;amp;quot;4, \&amp;amp;quot;Water Pollutants, 4\&amp;amp;$\#$039; isopropylidenediphenol\&amp;amp;quot;, Active species, article, Bacteria (microorganisms), Bacterial disinfection, bacterium, Benzhydryl Compounds, benzhydryl derivative, biodegradation, bismuth, Bismuth compounds, catalysis, chemical compound, chemical reaction, Chemical\&amp;amp;quot;, chemistry, controlled study, decontamination, Degradation, Degradation intermediates, Degradation kinetics, Degradation kinetics of RhB and BPA, Density functional theory, Design for testability, detection method, Disinfection, drug effect, dye, Emerging organic contaminants, Escherichia coli, experimental study, Fe3O4@BiOI@AgI, Ferrosoferric Oxide, high performance liquid chromatography, iodide, Iodides, Iron oxides, irradiation, light, magnetite, magnetite nanoparticle, microbial activity, Negibacteria, organic compound, organic pollutant, Organic pollutants, oxidation, phenol derivative, Phenols, Photo catalytic degradation, Photocatalysis, Photocatalysts, Photocatalytic activities, Photocatalytic activity, Photodegradation, photosensitization, pollutant removal, pollution, priority journal, procedures, purification, radiation response, Reaction intermediates, Reusability, rhodamine, rhodamine B, Rhodamines, Rhodium compounds, scavenger, silver, Silver compounds, silver derivative, Silver halides, silver iodide, solar radiation, Superparamagnetic property, Synthesis, ultraviolet spectrophotometry, Visible light irradiation, water decontamination, water management, water pollutant, Water pollution, Water Purification, Water treatment},
	isbn = {00431354 (ISSN)},
	url = {https://doi.org/10.1016/j.watres.2018.03.027},
	author = {J. Liang and F. Liu and M. Li and Liu, W. and Tong, M.}
}
