أرسل هذا في رسالة قصيرة: Synthesis of Nb5+ doped TiO2 as visible light photocatalyst via peroxo titanic acid sol approach for self cleaning applications.

            _____     _____    _    _             
  ____     |  ___||  |__  //  | || | ||     ___   
 |    \\   | ||__      / //   | || | ||    /   || 
 | [] ||   | ||__     / //__  | \\_/ ||   | [] || 
 |  __//   |_____||  /_____||  \____//     \__ || 
 |_|`-`    `-----`   `-----`    `---`       -|_|| 
 `-`                                         `-`