  In this work we explore some cosmological properties coming from the particle
and future horizons when are considered as candidates to model the dark energy
sector within a holographic context in a flat
Friedmann-Lemaitre-Robertson-Walker universe; we focus on some thermodynamics
characteristics of the resulting dark energy scenario. Within the interacting
scheme for cosmological fluids we obtain that in the dark sector, the dark
energy fluid will always have negative entropy production and additionally, the
positivity for the entropy and temperature can not be guaranteed
simultaneously; this result holds for both horizons. However, this last issue
can be solved if chemical potential is introduced in the thermodynamics
description. For the non interacting approach, we obtain similar results as
those of the single fluid description for the entropy behavior. We also find
that the model admits a genuine big rip singularity when the dark energy
density is sketched by the future horizon, in consequence the resulting
parameter state can cross to the phantom regime. For the particle horizon case
the cosmological fluid can emulate ordinary matter and the coincidence
parameter has a decreasing behavior when the future horizon is elected.
