because of this, Wang and co-workers developed a composite of a new nanoporous pigment array with responsive chemical dye composites and four nanomaterials (namely GNPs, sol-gel silica, MoS₂ nanodots, and GO monolayers) to combine and take advantage of nanomaterials have been created to detect rapidly target VOCs (VOC 16) at low concentrations. Nanomaterials-functionalized pigment formulations were obtained through mixing solutions of nanomaterials or silica hydrogel and pigments in various ratios, then they have been printed on a porous polyvinylidene fluoride (PVDF) film. in this study, the properties of these nanomaterials and their use as composites within the array of calorimetric sensors using TEM or SEM, UV-vis spectroscopy, FT-IR, fluorescence spectroscopy, XPS were determined and investigated. via immobilizing the pigments within the nanoporous structure, this array achieves a longer shelf life. further, the porosity permits the analytes to diffuse to the indicators rapidly through the matrix, consequently shortening the response time. clear differentiation became easily acquired for 16 common VOCs at low ppm concentrations within four mins with 91. 2% accuracy for each analyte. further, the array showed great stability towards changes in humidity (RH: 0%~100%) and temperature (5~45℃). most significantly, the nano-porous pigment array gives higher reactivity; in comparison to the dye-based arrays, the array's response to benzene and methanol improved by 112% and 163. 5%, respectively, demonstrating dye-functionalized nanomaterials are a promising manner to enhance the performance of current arrays for fast detection of VOCs.
because
of this, Wang and co-workers developed a composite of a new
nanoporous
pigment
array
with responsive chemical dye composites and four nanomaterials (
namely
GNPs
, sol-gel silica, MoS₂
nanodots
, and GO monolayers) to combine and take advantage of nanomaterials have
been created
to detect
rapidly
target
VOCs
(VOC 16) at low concentrations.
Nanomaterials-functionalized
pigment
formulations
were obtained
through mixing solutions of nanomaterials or silica hydrogel and
pigments
in various ratios, then they have
been printed
on a porous
polyvinylidene
fluoride (
PVDF
) film.
in
this study, the properties of these nanomaterials and their
use
as composites within the
array
of
calorimetric
sensors using TEM or SEM,
UV-vis
spectroscopy, FT-IR, fluorescence spectroscopy, XPS
were determined
and investigated.
via
immobilizing the
pigments
within the
nanoporous
structure, this
array
achieves a longer shelf life.
further
, the porosity permits the analytes to diffuse to the indicators
rapidly
through the matrix,
consequently
shortening the response time.
clear
differentiation became
easily
acquired for 16 common
VOCs at
low ppm concentrations within four
mins
with 91. 2% accuracy for each analyte.
further
, the
array
showed
great stability towards
changes
in humidity (RH: 0%~100%) and temperature (5~45℃).
most
significantly
, the
nano-porous
pigment
array
gives higher reactivity;
in comparison
to the dye-based
arrays
, the array's response to benzene and methanol
improved
by 112% and 163. 5%,
respectively
, demonstrating
dye-functionalized
nanomaterials are a promising manner to enhance the performance of
current
arrays
for
fast
detection of
VOCs
.