Topics in Current Chemistry (2020) 378:2
1 3
4 Conclusions—Prospectives
Taking into account all the above-mentioned results, it is reasonable to conclude
that the formation of the hotspots as well the localized temperature increase during the mechanochemical treatment can antagonize the harsh conditions created
inside the autoclave during the hydrothermal treatment, especially when the particle size of the precursor is equal or less than that of P25. It can be suggested
that the thermal effects during the synthesis when the temperature is higher than
150 °C overcome the effects of the US pre-treatment. Especially in the case of a
basic hydrothermal process, the utilization of sonication (US) as the pre-treatment has a vital role in the formation of 1-D nanostructures. The US effects can
be further explored and applied for the synthesis of novel nano-engineered materials by other methods like precipitation, targeting towards the achievement of
specific physical, chemical, and optical features.
In general, mechanochemistry can be a useful tool toward the manipulation of
the important and desired features for different applications. Ball milling or US
waves play a key role in size, shape, bandgap, porosity, light absorption, etc. Considering the above observations regarding the formation of NTBs, we can derive
Fig. 23 A schematic illustration of all the involved steps/mechanisms for the dealloying of amorphous
Cu 50 Ti 50 powders to rutile TiO 2 nanorods. Reprinted with permission from [135]. Copyright (2014) Elsevier
62
Reprinted from the journal
1 3
4 Conclusions—Prospectives
Taking into account all the above-mentioned results, it is reasonable to conclude
that the formation of the hotspots as well the localized temperature increase during the mechanochemical treatment can antagonize the harsh conditions created
inside the autoclave during the hydrothermal treatment, especially when the particle size of the precursor is equal or less than that of P25. It can be suggested
that the thermal effects during the synthesis when the temperature is higher than
150 °C overcome the effects of the US pre-treatment. Especially in the case of a
basic hydrothermal process, the utilization of sonication (US) as the pre-treatment has a vital role in the formation of 1-D nanostructures. The US effects can
be further explored and applied for the synthesis of novel nano-engineered materials by other methods like precipitation, targeting towards the achievement of
specific physical, chemical, and optical features.
In general, mechanochemistry can be a useful tool toward the manipulation of
the important and desired features for different applications. Ball milling or US
waves play a key role in size, shape, bandgap, porosity, light absorption, etc. Considering the above observations regarding the formation of NTBs, we can derive
Fig. 23 A schematic illustration of all the involved steps/mechanisms for the dealloying of amorphous
Cu 50 Ti 50 powders to rutile TiO 2 nanorods. Reprinted with permission from [135]. Copyright (2014) Elsevier
62
Reprinted from the journal