Lukas Wesemann

The easiest route is to dry the TiO2, measure the pore volume (in mL/g) and add enough volume of ammoniacal AgNO3 to just saturate the pores. Aim for a 2.5- 5% final Ag loading to keep the particles small (~ 10 nm). Reduce with hydrazine hydrate (5 or 10%) or hydrogen. The TiO2 substrate with the sterically stabilized Ag particles should then be capable of being dried at 120 C.

This is a similar preparation for any PGM based catalyst. See also:

Silver colloids and invisible ink

https://www.brainshark.com/malvern/vu?pi=560497681&b=1&tx=120486&c1=22

Metal colloids - their preparation, application and characterization

https://www.brainshark.com/malvern/vu?pi=529368070&b=1&tx=120486&c1=22

Lukas Wesemann

Using steam, create on the surface of titanium H2Ti O3, and then plant silver. Get the Ag2Ti O3 film with good adhesion.

Lukas Wesemann

The easiest route is to dry the TiO2, measure the pore volume (in mL/g) and add enough volume of ammoniacal AgNO3 to just saturate the pores. Aim for a 2.5- 5% final Ag loading to keep the particles small (~ 10 nm). Reduce with hydrazine hydrate (5 or 10%) or hydrogen. The TiO2 substrate with the sterically stabilized Ag particles should then be capable of being dried at 120 C.

This is a similar preparation for any PGM based catalyst. See also:

Silver colloids and invisible ink

https://www.brainshark.com/malvern/vu?pi=560497681&b=1&tx=120486&c1=22

Metal colloids - their preparation, application and characterization

https://www.brainshark.com/malvern/vu?pi=529368070&b=1&tx=120486&c1=22

Hi you can use photodeposition method to load Ag or other metals on TiO2...

Alan F Rawle, do you know any cost-effective reducing agent other than hydrazine hydrate? It seems the hydrazine hydrate is very costly though.