An in situ self-charging triboelectric air filter with high removal efficiency, ultra-low pressure drop, superior filtration stability, and robust service life

Breathable, transparent, waterproof, flexible and high-output triboelectric nanogenerators for sport monitoring and speech recognition

“…In addition, the results indicate that the contents of Si RS are highly related to the output performance of NC/Si RS-TENGs, and increasing the contents of Si RS in the range of 0.00 g to 0.20 g enhances the output performance of NC/Si RS-TENGs obviously. The mechanism of the enhancement ascribes to the effect of changed surface roughness by micro/nano particles and induced F functional groups, 48 which can be validated by AFM, XPS and 19F NMR results (shown in Fig. 2d, e and S11 †).…”

Bioelectrets in Electrospun Bimodal Poly(lactic acid) Fibers: Realization of Multiple Mechanisms for Efficient and Long-Term Filtration of Fine PMs

“…57,58 Meanwhile, the movement of few volume charges from shallow to deep traps would also contribute to the amorphous−crystalline interfacial charge traps because electrons under an E-field are endowed with enough energy to be activated (Figure 3i). 59,60 The schematic diagram and photo for the filtration performance measurement setup are depicted in Figure 4a and Figure S7. The stable stage of fiber filtration could be further cataloged into the following five trapping mechanisms: Brownian diffusion, electrostatic attraction, inertial impaction, gravity settling, and interception, as illustrated in Figure 4b.…”

“…An increased interphase of HABE–PLA and amorphous–crystalline PLA enhanced the polarization of HABE-modified PLA during solidification (Figure h). The intrinsically different electronic transport capabilities between HABE and PLA resulted in a charge barrier, and the formation of interfacial charges increased the number of deep charge traps. , Meanwhile, the movement of few volume charges from shallow to deep traps would also contribute to the amorphous–crystalline interfacial charge traps because electrons under an E-field are endowed with enough energy to be activated (Figure i). , …”

Nanopatterned Electroactive Polylactic Acid Nanofibrous MOFilters for Efficient PM0.3 Filtration and Bacterial Inhibition

“…Moreover, the utilization of TENG technology to generate electrical charges is another major breakthrough in the area of air purification . In essence, the increase of the dielectric constant can not only achieve high charge density output but also improve the dipole charge storage capacitance .…”

“…40 Moreover, the utilization of TENG technology to generate electrical charges is another major breakthrough in the area of air purification. 42 In essence, the increase of the dielectric constant can not only achieve high charge density output 43 but also improve the dipole charge storage capacitance. 44 Therefore, to explore the effect of the improvement of the dielectric constant as well as the change in the fiber morphology, we measured the triboelectric output performance of each sample and performed a comparative study.…”