Search

Magnetic protective fabrics with fine wearability and great protective properties are highly desirable for aerospace, national defense, and wearable protective applications. The study of the controllable preparation method of Nd3+ doped in Fe3O4 nanoparticles with supposed magnetic properties remains a challenge. The characterization of the microstructure, elemental composition, and magnetic properties of NdFe2O4 nanoparticles was verified. Then, the surface of NdFe2O4 was treated with glyceric acid to provide sufficient –OH. Subsequently, the connection of the nanoparticle by the succinimide group was studied and then grafted onto cotton fabrics as its bridging effect. The optimal loading rate of the functional fabrics with nanoparticles of an average size of 230 nm was 1.37% after a 25% alkali pretreatment. The color fatness to rubbing results showed better stability after washing and drying. The corresponding hysteresis loop indicated that the functional fabrics exhibited typical magnetism behavior with a closed "S" shape and a magnetic saturation value of 17.61 emu.g−1 with a particle size of 230 nm. However, the magnetic saturation value of the cotton fabric of 90 nm was just 4.89 emu.g−1, exhibiting controllable preparation for the aimed electromagnetic properties and great potential in radiation protective fields. The electrochemical properties of the functional fabrics exhibited extremely weak electrical conductivity caused by the movement of the magnetic dipole derived from the NdFe2O4 nanoparticles. [ABSTRACT FROM AUTHOR]

Cotton fabric was plasma treated and then loaded with Ag6Si2O7 by in-situ precipitation to prepare plasma-treated/Ag6Si2O7-loaded cotton fabric and the effects of treatment parameters on its photocatalytic activity were studied. Plasma treatment facilitated more efficient loading of Ag6Si2O7 on plasma-treated cotton fabric, which was confirmed by SEM, XRD and EDS. The plasma-treated/Ag6Si2O7-loaded cotton fabric had efficient photocatalytic activity in UV-visible region illustrated by UV-vis DRS. With the increasing treatment time, the degradation ratio of MB solution by plasma-treated/Ag6Si2O7-loaded cotton fabric increased first and then decreased, and it increased first and then almost remained unchanged with the increasing output power. [ABSTRACT FROM AUTHOR]