His daughter from his second marriage, Lyubov, became the wife of the famous Russian poet Alexander Blok.
In 1857, he returned to Saint Petersburg with fully restored health. In 1865 he became Doctor of Science for his dissertation "On the Combinations of Water with Alcohol". Petersburg University and started to teach inorganic chemistry, while succeeding Voskresenskii to this post.
and by 1871 he had transformed Saint Petersburg into an internationally recognized center for chemistry research.