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  ______    _____    __   _     ______  __    __  
 /_____//  |  ___|| | || | ||  /_   _// \ \\ / // 
 `____ `   | ||__   | '--' ||   -| ||-   \ \/ //  
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 `__ `     |_____|| |_|| |_||  /_____//    \//    
 /_//      `-----`  `-`  `-`   `-----`      `     
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Text this: Enhanced visible-light-response photocatalytic degradation of methylene blue on Fe-loaded BiVO4 photocatalyst