أرسل هذا في رسالة قصيرة: Photocatalytic activities of Fe-Cu/TiO<inf>2</inf>on the mineralization of oxalic acid and formic acid under visible light irradiation

 _    _      ___     _    _    _    _     ______  
| || | ||   / _ \\  | || | || | || | ||  /_   _// 
| || | ||  / //\ \\ | || | || | || | ||    | ||   
| \\_/ || |  ___  ||| \\_/ || | \\_/ ||   _| ||   
 \____//  |_||  |_|| \____//   \____//   /__//    
  `---`   `-`   `-`   `---`     `---`    `--`