أرسل هذا في رسالة قصيرة: Photocatalytic degradation of methylene blue by C<inf>3</inf>N<inf>4</inf>/ZnO: The effect of the melamine/ZnO ratios

  ____       ___      ____      _____    __   _   
 |  _ \\    / _ \\   |  _ \\   |  ___|| | || | || 
 | |_| ||  / //\ \\  | |_| ||  | ||__   | '--' || 
 | .  //  |  ___  || | .  //   | ||__   | .--. || 
 |_|\_\\  |_||  |_|| |_|\_\\   |_____|| |_|| |_|| 
 `-` --`  `-`   `-`  `-` --`   `-----`  `-`  `-`