A highly efficient triboelectric negative air ion generator

Recent Advances in Self-Powered Electrochemical Systems

“…Generally, air pollution exposure is related to lots of chronic diseases, such as pulmonary and cardiovascular disease [ 62 ]. To clean PM 2.5, Guo et al reported an SP triboelectric negative air ion generator (MSNG) powered by TENG [ 63 ]. Powering by TENG, the voltage of carbon fiber electrodes was over 2 000 V, which can be employed to produce negative air ions in these electrodes ( Figure 2 h).…”

“… Diverse applications of self-powered electrochemical system. SP electrochemical system for pollutants treatment [ 50 , 63 ], electrochemical synthesis [ 70 , 78 ], electrochemical sensor [ 89 , 95 ], electrochromic reaction [ 99 , 100 ], and anticorrosion protection [ 112 , 113 ]. …”

“… Self-powered electrochemical pollutant treatment: (a) sketch map of rotary TENG; insert displays the pictures of stator and rotator; (b) SP system for removing Cr(VI) powered by rectified TENG; (c) the comparison of charge consumption for Cr(VI) removal under different conditions [ 50 ]; (d) sketch map of the rotary TENG; (e, f) the mechanism image and optical image of SP electrochemical system for cupric ions and rhodamine B removal; (g) removal efficiency of cupric ions and rhodamine B [ 54 ]; (h) sketch map of the triboelectric negative air ion generator; (i, j) the contrast photographs of the smog cleaning by the MSNG in stationary conditions (i) and with the FS-TENG conducting at 0.25 Hz (j) [ 63 ]. …”

High rotational speed hand-powered triboelectric nanogenerator toward a battery-free point-of-care detection system

“…In recent years, triboelectric nanogenerators (TENGs) have emerged as one of the leading sustainability energy supply device to mitigate the environmental and energy problems. 1,2 As a new mechanical energy harvesting technology, triboelectric nanogenerators have demonstrated promising capabilities due to their advantages of simple preparation, low cost, high stability, multi-mode operation, and high efficiency of mechanical energy conversion into electrical energy. [3][4][5][6][7][8][9][10] The process of biochemical detection usually consists of pretreatment and detection steps.…”

Comparative Study of Computational Models for Reducing Air Pollution Through the Generation of Negative Ions

“…The research conducted by Nadali et al [14] concluded that negative ions charge particles by producing a strong electric field in such a way that it the causes movement of charged particles towards interior surfaces, which finally settle on the surfaces of the walls and the floor. Guo et al [30] demonstrated that particulate matter (PM 2.5) in a closed glass chamber (5,086 cm3) decreases rapidly from 999 to 0 µg m -3 in 80 seconds under an operating 0.25Hz TENG device frequency. Sawant et al [31] showed that the negative ion system removed between 93% and 97% of the fog or smoke particles in 6 minutes, in a glass chamber (60 cm x 30 cm x 40 cm).…”