Detection of benzaldehyde and formaldehyde in the UV photolysis of gas-phase methyl benzoate

Christophy, Elizabeth; Myli, K. B.; Viegut, Terrance R.; Rzepiela, Jeffrey A.; Hossenlopp, Jeanne M.

doi:10.1016/s1010-6030(97)00197-4

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…As measured, the current response of the DPOMA/GO nanocomposites films increases with the increasing concentration of target analytes. Similar phenomenas have also been reported in the literature [49][50][51]. For a low concentration of BZD in liquid medium, there is a smaller surface coverage of target molecules on the DPOMA/GO/AgE, and hence, the surface reaction proceeds slowly.…”

Section: Detection Of Benzaldehyde With Dpoma/go Nanocomposites/age Bsupporting

confidence: 88%

Conventional surfactant-doped poly (o-anisidine)/GO nanocomposites for benzaldehyde chemical sensor development

Khan

Rahman

et al. 2015

J Sol-Gel Sci Technol

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We report on the synthesis of conventional surfactant dodecylbenzenesulfonic acid-doped poly (o-anisidine)/graphene oxide composite (DPOMA/GO), a orthomethoxy substituted derivative of anisidine, by in situ oxidative polymerization method. A mixture of Na 2 S 2 O 8 in HCl was used as oxidant, while dodecylbenzenesulfonic acid was used as both dopant and surfactant. The physicochemical characterization was carried out using a field-emission scanning electron microscope and X-ray crystallography (XRD), Fourier transforms infrared, UV-Vis, and simultaneous thermo-gravimetric analysis study. Then, the DPOMA/GO nanocomposites were used to construct nonenzymatic sensors in practical with I-V technique, where the total analytical parameters were measured. The DPOMA/GO nanocomposites were deposited on flat silver electrode (AgE; surface area *0.0216 cm 2 ) to result in a sensor that has a fast response to selective benzaldehyde in buffer system. Features including sensitivity, detection limit, reproducibility, linear dynamic range, selectivity, and electrochemical performances were investigated in detail with the DPOMA/GO nanocomposites-fabricated AgE electrodes. The calibration plot is linear (r 2 0.9699) over the large concentration range (0.1 nM-0.1 mM). The sensitivity and detection limit are calculated as *1.2277 lA cm -2 lM -2 and 0.03 nM (at a signal-to-noise ratio of 3), respectively. Graphical abstract I V I-V method 0 DPOMA/GO Nanocomp/AgE DPOMA/GO Nanocomp/AgE e − BZD + nO -(ads) H 2 O(g) + CO 2 (g) + ne -e − e −

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Section: Detection Of Benzaldehyde With Dpoma/go Nanocomposites/age Bsupporting

confidence: 88%

Conventional surfactant-doped poly (o-anisidine)/GO nanocomposites for benzaldehyde chemical sensor development

Khan

Rahman

et al. 2015

J Sol-Gel Sci Technol

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“…[2][3][4][5][6] Among them, benzaldehyde (C 6 H 5 CHO) is the smallest yet the most important. [7] In the atmosphere, the main destruction of aromatic aldehydes occurs by photodissociation with solar radiation and reactions with OH, NO 3 , and O 3 . The former process plays an important role in aerosol formation, [8] whereas the latter reactions in the atmosphere lead to formation of benzoylperoxyradicals, C 6 H 5 C(O)OO, an important intermediate of atmospheric pollutants.…”

Section: Introductionmentioning

confidence: 99%

Photodissociation Dynamics of Benzaldehyde (C₆H₅CHO) at 266, 248, and 193 nm

Bagchi

Huang

et al. 2011

Chemistry An Asian Journal

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The photodissociation of gaseous benzaldehyde (C(6)H(5)CHO) at 193, 248, and 266 nm using multimass ion imaging and step-scan time-resolved Fourier-transform infrared emission techniques is investigated. We also characterize the potential energies with the CCSD(T)/6-311+G(3df,2p) method and predict the branching ratios for various channels of dissociation. Upon photolysis at 248 and 266 nm, two major channels for formation of HCO and CO, with relative branching of 0.37:0.63 and 0.20:0.80, respectively, are observed. The C(6)H(5)+HCO channel has two components with large and small recoil velocities; the rapid component with average translational energy of approximately 25 kJ mol(-1) dominates. The C(6)H(6)+CO channel has a similar distribution of translational energy for these two components. IR emission from internally excited C(6)H(5)CHO, ν(3) (v=1) of HCO, and levels v≤2, J≤43 of CO are observed; the latter has an average rotational energy of approximately 13 kJ mol(-1) and vibrational energy of approximately 6 kJ mol(-1). Upon photolysis at 193 nm, similar distributions of energy are observed, except that the C(6)H(5)+HCO channel becomes the only major channel with a branching ratio of 0.82±0.10 and an increased proportion of the slow component; IR emission from levels ν(1) (v=1) and ν(3) (v=1 and 2) of HCO and v≤2, J≤43 of CO are observed; the latter has an average energy similar to that observed in photolysis at 248 nm. The observed product yields at different dissociation energies are compared to statistical-theory predicted results based on the computed singlet and triplet potential-energy surfaces.

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Pigment and nanofiller photoreactivity database

et al. 2012

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Detection of benzaldehyde and formaldehyde in the UV photolysis of gas-phase methyl benzoate

Cited by 4 publications

References 33 publications

Conventional surfactant-doped poly (o-anisidine)/GO nanocomposites for benzaldehyde chemical sensor development

Conventional surfactant-doped poly (o-anisidine)/GO nanocomposites for benzaldehyde chemical sensor development

Photodissociation Dynamics of Benzaldehyde (C₆H₅CHO) at 266, 248, and 193 nm

Pigment and nanofiller photoreactivity database

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Detection of benzaldehyde and formaldehyde in the UV photolysis of gas-phase methyl benzoate

Cited by 4 publications

References 33 publications

Conventional surfactant-doped poly (o-anisidine)/GO nanocomposites for benzaldehyde chemical sensor development

Conventional surfactant-doped poly (o-anisidine)/GO nanocomposites for benzaldehyde chemical sensor development

Photodissociation Dynamics of Benzaldehyde (C6H5CHO) at 266, 248, and 193 nm

Pigment and nanofiller photoreactivity database

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Photodissociation Dynamics of Benzaldehyde (C₆H₅CHO) at 266, 248, and 193 nm