Visible-light photocatalysis with bismuth titanate (Bi12TiO20) particles synthesized by the oxidant peroxide method (OPM)

Author's Accepted Manuscript

Visible-light photocatalysis with bismuth titanate (Bi12TiO20) particles synthesized by the oxidant peroxide method (OPM) André E. Nogueira, Elson Longo, Edson R. Leite, Emerson R. Camargo

www.elsevier.com/locate/ceramint

PII: DOI: Reference:

S0272-8842(15)01140-2 http://dx.doi.org/10.1016/j.ceramint.2015.06.024 CERI10763

To appear in:

Ceramics International

Received date: Revised date: Accepted date:

1 May 2015 2 June 2015 4 June 2015

Cite this article as: André E. Nogueira, Elson Longo, Edson R. Leite, Emerson R. Camargo, Visible-light photocatalysis with bismuth titanate (Bi12TiO20) particles synthesized by the oxidant peroxide method (OPM), Ceramics International, http://dx. doi.org/10.1016/j.ceramint.2015.06.024 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.


 

          

    !"

#$%&' ()% *  )% +&* )% +&, )




 


    

  

  
 

 





     
 

!
  
" #$% & 
 
'
()*
+
,-,
!
  
+
.)*,*/0*
1 2 #


 

 

3   
4+   

+ 
"
  
& 

+
)**
3   
+
.560./0-
1 2 #


  (,  # &%- ./01 &  -23304/5646             #  

7   ) .8   9   

           !"&     8       :88   :+;)<
.888   ;+=):

!*     )  . >)88   ;=,

?  8 8    ?7+)       ?  8 8     ?7+)       %")    =%"      F   &  %")    =%"     F    :+;          83@,  8  :+;          83@,  8  8 

88 

    ;+= 8   

;+= 8   

  8        

 .   



 .      A03   

 .      

 .    &   

   . 

   . .8    

     8

     8  +    .  +    .   & 7  8 

    A ,  



   .   

    A@,  



   .   

 H  ) B      .A@,&0 ) B      .A@, )  4&A    4&A     &   

   .  8   &  .  8   

 

       8       )

8       )   

&  Keywords: Bi12TiO20; ! -     I    I ! - !

 &

&7     !

      

8  

 

!

      

8

   .     9       

        9      

    888    8.     

8.        &=     &=    .8  

 

     8    .8  

 

     8      9      9 .   CA AD& #



    

 9

   #



    

  9

   

 )  8

 8  8  .

    8  .

     9   9      &     &         )    )      O•2−      JK         )  .)      8.     )  .)     8.    C5D& 7 

 .88 .    )  . 8 ..

7 

 .88 .

)  . 8 ..  .

   

  

  &+ )   .

   

  

  &+ )    #E5)5F,5'A)G0) .  

      

     . C3/D&

 

8 8   &  8   )  

  8.    8 

   

       .0     852& 9   8   8     )   )   )

  .   C/D& "     .

   8

  

    ..  8 )  

   . ) 

 )  ) &C4DCD     88   8                [11])            CD)   C5D)    

 9CD) &&J .)    .          )      )      8     88  

      8 

& 7    )   ! " !" 

      .  .  8     )     CA)3D&  .   8       8      8        )8 8       &C0)6D        8    9)     .  )  . 8   . )      8     8 

  8  

   & 7    B)  

  ) 88 

  )      !") .   88 

8             8)     )       ) &?  )  88  8       

   .  8 .   

     8+    & &"   &&!    8"  #          -L-  , MB C0D       8&3 8    4/N# )<=#9     80* 8J5N)  )= )A* 8 9    5N) ) = )&#8   &5 )        8           )     85&/ 8544&44N)# ) <=#

5* 8   )= ))   

          

   &  .  .    8)8      

 8        

  8     &       0@,8 5 )   .    A6@,8       8@,H    &

(#(#
 

2 
7
%



    8    8         ?  8 8?7+    B %O<7::33)%

)> 

 

P  E=    &      

    AQA ) 5A   &#        

    

   :+; ,MR   +B;F"#:)      3B
A# θ 8 

63@    8&@&   88 8             66M"  #=#!& ;888      .  .;+=    
 ,3> 888  

8 

     

     88      MB"B8  )/&   . . >#O3  .  #7  )', );% 8     -  &S&3I  8 0*FI   @,FI

   830@,&#   8     &   88   ;=,AA,   #=, AAF5#)'  )> 333@,      F

  8@,F 8  8&35F&      8           %"?%7F!J7*7!=,"8     ?%=%") E%7== =
!*      T# "   6    

J +AA0

  &      53&6.  8B

  ,  7 .)B    3G& (#)

8 



 +         8          .λ L33A)         

      )  88 

& %   8*    8+   J0&  0 8

    .  &        88  B     + & .

       !J7*7!=*;)3G   !J7*7!=* ;)3G      AA&#

     8 9  &?      AA&#

     8 9  &?     

 )    

    8    8  &+    8    8  &+  

<

    T#=,

    T#=,
00 33A)  00 33A)  9 .

&   5&+  

)#.
 

2 
7
%


 )#.
 

2 
7
%


               8                   8    &     8           )     

    

     )8      )8    

  

  88  8  

8    

  88  8  

8    & , .  )             , .  )             

5      &J .)   J .)   9  8           8            )    )                            8

   

.     8           8

   

.     8     

  C/D&  ) 

        .       .     ) !" 8          8           &7  )                

J  

 

 8  %9  C0DD& − − Pb(OH)24(aq) + 2H 2O2(aq) → PbO2(s) + 2H 2 O(l) + 2OH (aq)  − Pb(OH)24(−aq ) + [Ti ( OH)3 O 2 ](−aq ) → PbO 2( s ) + TiO 2( s ) + 2H 2 O( l) + 3OH (aq) 

            8         

 8               )8       CJ

 5D ))          8     C0D&

J< &     &       8    )  

    8    )    8  FJ   

  &C4D    8 9       8       8    

  

    J%

  

    J%9  5&  5

                            8    8     )  8  8   8    8     )  8

 8        &C4 4D G         

         8     

         8     

         8         )  J8    8J )  J 3)       8J)8     

5 

%9   9  5&=  )     8 =  )     8        8  JA)

 8    8J

   8     

%9  A)8      

 )8      )  8     

 )  8      )      &     &  5 − [Ti(OH)3 O 2 ](−aq ) + H 2O( l ) → Ti(OH) 4 ( s ) + O 2 ( g ) + OH (aq)

A      8        !" .       8        . 

 . ?&& ?&& ?& ?           8  4 N          8  4 N   ) 8    8 3

A@,) 3 N  )     ,) 3 N  )         .    8  & .    8  &   ) A35@,) 

A35@,) 



'5  

   

5&?     .35@,)       8         8      

   &    B    560@,

     8    8    560@,

     8    8      &C4D      8         8     :+;? :+;?&&  :+; 8  .3  :+; 8  .3@,    

   

     75!;?46& 46&J .)   A@,  ,    B      B   Ƈ 

   .B   8  .B   8     A5!;?53643&       !;?53

   8            )       )   E  &      88             &C/D ?

 .  8      

 8   8  ?GJ" 8 5 B 8   = 9   8  &CD D=

KȜ 3 ȕ cosș

 M     8

)  &4A)U :. UL &3A0)V ?GJ" 8 88  )W 88  &     &G8     )        )   8&   8   8        A/ ?&5)    .

8  A06) 36)34A065)  

 .    8      8        .,.  && CD7   .        )       )   8    8 )      :+; ?&&C5)D   5A4 

 

    .   8 J )  

   88      A 

 

      .   8  B)       & ?5

          8  ?%=%" %"?&A& ?%=%" 8     8   8     8 8      8   &    8  8 !"   . )     8 ?%=%"   8       8    8B  &%" 8         8  )  8    888     

    .  C5D& ?A 7  8  )  88  % 9  &       88 8&0) .)   8 8     8  

  ) 8 80&0&A4H8   

 A6@,)  .)

    8     8  &   88 8  88         )  88  8 .      8)    

    

8   &J .)  .       .  8 

       88)        8  )          

  &CAD <
.888 

        8   ?&3&   8  8   8

               9  R%XL#%X%) % !BY   )X 89 8 .  )R     88 )%  )#        & . 8          8    

 

) L8     LF8  

  &C3)0D& ?3 7 ;+=   8    .    

   8  8    

 . )      )?3&       8       

  )   

 88   8    88     &# 8        )     .        8   .    &     8    .&00
)       8 A00&          

!"  .

.  )   

 .    & !

!*       

8 ;+=  

       8     & !*   8    !"    88 

   ?&0& ?0

!*   8           8 .     &
          8    )   

88    88 8  )   

  &   A)30@,     05   6@,   33& !*  8    

   8.  

 )B    )   8 !*     8) )  8      &C6D )#(
8 

 8    8   

 8+ &    

     8          8      &7 ) 

.  8 8

  

   )  8 .     8  

&7  .  8 A 

8  ) 0N     +    ?&6&7    

       8

     88  8

&  B           8  6N+      8 &7  .        8 + .  

0  8  )    8    )   

        9 & ?6   

   .  8  .     8+  9    .   &?&/  +      88 8  A3@,       .   )  60/N 8 +          .&

    

   . ) 

    F    88 . 

   8 8   B   

  F    8     & )     88     88 8

    F  &=       

    F     )          8  F     . 

   .  8 

&? )          )   8 )     



   .  8& ?/

 B      8     

,F,   .    )   ?&/& 

    

8+  . 

       8  B 9   HF LB& BZ     .A@,&0H)  4&A        44&6N)# )<=#&             8

     . )  

 + 

,J&      85&
   . )   B

   . . & A&,     B       8   

!"         83@,8     F

  8@,F ;+= 8   

  8

       

 .     A03    

 .    &         

   8 

   8+  .  &   A@,     

   . )    4&A     &          +8 CDJ&=)>&E )=&*)J&"&#)"&&$)=&G)
  .

 

       ?)')#) ! 8     89    ), &%&T&55/3& 

CD"&!)'&&' )=&,&!)"&M&=)!&?)#&>&M 

)!&=&"&; ) T&G&T&J

)T&#&)M&[= )"&J&% );&;&;  )#.   .  .   

  8 .     ) # &, &)3555A4&  C5D;&=  )+&"

)=&"

)!&?7\)7&;= )= 

 -" )

)  )      &#   .   )# &, &)66345&  CAD&*)E&!)"&,&> )T&&E )T&*&G)]&O&, )> 

  

   8 .     ), &, &*

&/ 6AA5&  C3D=&+& B)>&=&>B)'&&M  )#&
&GB );.   8)   88  .  .

  #E58     ), &, &0354A5&  C0DT&E )]&J):&T)=&, )=&"):&?); 8 E 

  -         85F,5'A   .   . )T&J&" &/A656&  C6DG&&*)G&E&J)J&E )J&]&])]&?&E ):&,&= )= 

 .    8 G0

  )" &+&&0A 3A5A56&  C/DJ&E )"&*^)=&*)E&:)>&E )]&E )E&O)#&E )O&")!    

      8 8)=8&,  &  &/ A45A45A&  C4D:&E )T&E )?&, )J   8   



   .   6. ),   6/ 53533&

 CD&= )>&=&M)"&"&"B)         8          9) BA5405 403&  CD'&  B_)%&>)=&G B_ )  8   777            . )!    &035/&  CDG&?] )J&G):&J :):&?, )T&J)=&:= ):&' ])"&G)!

      8     )# & , &)#A55/34&  C5D:&E )T&E )?&, )=  . 

   .    8           )# &, &)505&  CAD#&%&' )%&*  )%&+&* )%&+&, )= 

      8     88   .      !")T&,  7 8=&A3A/44A&  C3D%&+&, )"&>&;)"&MB )      !"   .8    8  )T&" & +&4A55/&  C0D%&+&, )"&MB )! +  ?8 J8   =  8*  ! ), &" &5//A&  C6D%&+&, )T&?

)"&MB )*       8      !E 88   )T&" &, & /63/64& 

C/D"&MB )7. .` a     8          )T&= >=&  &0440633&  C4DT&J )]&O);&M .)+&
&M)!      .    

 A5  )T&'  & +&4646/3&  CDT&7&*8 )#&T&,&G )= 8  -#.        8  )T&# &,  &46/5&  CDT&?&,. )+&G&#&? ),&T&" )*&#&&')#&,&J)        8 .   )  &" &544455555/&  CD=&M _)+&7)=&JB)"&B )+=

=  8  *=  ?  )T &T&# &! &5544A3334&  C5D#&' )#&?&*)%&*  )%&* )%&, )=  

      8'         !")T& '  &+&0A&  CAD&"B);&G& )"&GB)!

           

           ), & )3A&  C3D;&*&G

)T&)GB#   #  = 

)! & +.&), &" &3465AA53&  C0D*& ._)M&" );&
)
   8MBQ"B  8 ;+7?    8

 

)G

=&  &A353A0& 

C6D=&M&+  )*&=&,. )T&,&= B)& )=&! )"&=*)%& *  )!

    8            )! ), &"

&AA455A55A6&  ?   ?&&  . 88    



8    )    @,F& ?&&:88   

 8       88 

  8  & ?&5&?7+   A

/  AA  8       88    8  &

?&A&%" 8      ?%=%" 8    88    8  & ?&3&<

888     8   88    8  & ?&0&!

    8  88    8  &       B

  53&6. & ?&6&#     8+    F*8 88         .  B    . 8+     88    8  &

?&/&M  8

       8+  8  B  9   

 8      88 

  8  .  &   



 ,  88 8  & = 

, 

=%

A@,

36

0&0

3@,

34

3&A3

0@,

06

A&A0

6@,

/5

&A4

 





  

    88       8   88    8  & 





5



A



= 

+   N

'b  

%  

+

!



6

&4

S&3

&4355



A

&0A

S&35

&4353

A@,

6

0&

S&/

&4466

3@,

0/

3&0

S5&A6

&465

0@,

50

&4

S&0

&434

6@,

3

5&3/

S&56

&4/4/

Figure 1a

Figure 1b

Figure 2

Figure 3a

Figure 3b

Figure 4

Figure 5a

Figure 5b

Figure 6

Figure 7a

Figure 7b

Figure 8a

Figure 8b