أرسل هذا في رسالة قصيرة: SYNTHESIS, CHARACTERIZATION AND ENVIRONMENTAL APPLICATIONS OF CARBON, NITROGEN-CODOPED TITANIUM DIOXIDE NANOPARTICLES

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