Looking on the internet deeply has found these results:

dedicated to work is the most popular phrase on the web.

dedicated to duties 135,800 results on the web	dedicated to work 121,600,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	I've never seen anyone quite as dedicated to his work. A museum dedicated to your work. About 3.5 The financial support provided until 2009 for decommissioning was mainly dedicated to preparation works. 4 man years per annum are dedicated to this work. Those columns are dedicated to doing work... ...that's probably considered by many people to be immoral or illegal. The resources of social solidarity need to be dedicated to financing work and not just promoting inactivity. Don't blame Diana, she's dedicated to her work.

dedicated to duties

135,800 results on the web

dedicated to work

121,600,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

I've never seen anyone quite as dedicated to his work.
A museum dedicated to your work.
About 3.5
The financial support provided until 2009 for decommissioning was mainly dedicated to preparation works.
4 man years per annum are dedicated to this work.
Those columns are dedicated to doing work... ...that's probably considered by many people to be immoral or illegal.
The resources of social solidarity need to be dedicated to financing work and not just promoting inactivity.
Don't blame Diana, she's dedicated to her work.