rphology at a lower temperature.
Recently, Harpeness et al. [21] described the fabrication of
MoSe2 nanorods with lengths ranging from 45 to 55 nm via a
microwave-assisted polyol method between Mo(CO)6 and Se powder.
Shi et al. [22] reported a chemical solution reaction approach
for the fabrication of MoSe2 nano-flakes with diameters of about
100–300 nm. Compared with the above common chemical solution
reaction approach, hydrothermal synthesis is considered as an
effective way to prepare nanomaterials due to it’s merits including
mild synthetic conditions, simple manipulation and good crystallization
of the products. In 2001, Chen and Fan [23] have
been successfully synthesized MoSe2 nanocrystalline by a facilehydrothermal method using Na2Se2O3 and Na2MoO4 as raw materials
in aqueous solution at 150 ◦C. Very recently, Fan and the
co-workers [29] reported novel flower-like MoSe2 nanostructures
were synthesized by a facile hydrothermal method. Motivated by
previous reports mentioned above, we further develop a simple
and effective modified hydrothermal approach for the synthesis
of 3D flower-like MoSe2 microspheres using selenium powder
and sodium molybdate as raw materials. Subsequently, the asprepared
MoSe2 nanoflowers were fully characterized utilizing
various technologies. Furthermore, a possible formation mechanism
was discussed in detail on the basis of time-dependent
morphological evolution process. Experimental study of their performance
as adsorbents for dye pollutants from water showed that
they are very promising materials for wastewater treatment.