Simultaneous determination of benzene and formaldehyde in air by cross cataluminescence on nano-3TiO2–2BiVO4

The development of a simple yet excellent cataluminescence sensor based on nano-Dy2O3 for the rapid monitoring of cyclopentanone

“…The reason of generate on chemiluminescence that must release adequate energy to form the luminescence intermediates in the electronically excited state, and derived from decay from excited states back to ground states in the process. It is well known that excited intermediates are identify in the significant point of the mechanism study, the maximum emission wavelengths of CTL spectra reply on the reaction intermediates [39]. Carbon dioxide in the electronically excited state is reported to release energy when it returns the ground and generating light at between 430 to 460 nm [40], the maximum emission wavelength of cyclopentanone is 460 nm in this range.…”

Using Box Modeling to Determine Photodegradation Coefficients Describing the Removal of Gaseous Formaldehyde from Indoor Air

“…This technique is based on the generation of reactive radical species that are destructive to organic pollutants and microorganisms (Liang et al, 2013). The use of TiO 2 nanoparticles as photocatalytic reactors has many advantages, including high photocatalytic activity and reactive surface area, abrasion resistance, low operating temperature, and good thermal stability (Yang et al, 2010;Zhou et al, 2014;Pramod and Pandey, 2015). Filters incorporating TiO 2 and activated carbon have been used to remove nitrogen oxide and toluene at ppb levels from indoor air Lee, 2004, 2005).…”

A new cataluminescence-based gas sensor for simultaneously discriminating benzene and ammonia

“…So, we rstly proposed to identify different molecules on a single sensitive material. 51,52 Benzene and formaldehyde, for example, were determined on nano-Ti 3 Bi 2 V 2 O 14 by their cross-sensitivities at two peak wavelengths where the CTL intensities were higher than those of other wavelengths. 51 In the same vein, however, the process determining benzene and ammonia on nano-Bi 4 -SnV 2 O 13 was unusable on account of intolerable error.…”

“…51,52 Benzene and formaldehyde, for example, were determined on nano-Ti 3 Bi 2 V 2 O 14 by their cross-sensitivities at two peak wavelengths where the CTL intensities were higher than those of other wavelengths. 51 In the same vein, however, the process determining benzene and ammonia on nano-Bi 4 -SnV 2 O 13 was unusable on account of intolerable error. By an indepth study, we found that the algebraic sum rule is applicable to the CTL intensities of benzene and ammonia at partial wavelengths and right temperatures.…”