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Record W1972085763 · doi:10.1080/01919510701816361

Temperature Effects on the Vacuum-UV (VUV)-Initiated Oxidation and Mineralization of Organic Compounds in Aqueous Solution Using a Xenon Excimer Flow-through Photoreactor at 172 nm

2008· article· en· W1972085763 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueOzone Science and Engineering · 2008
Typearticle
Languageen
FieldEnvironmental Science
TopicAdvanced oxidation water treatment
Canadian institutionsConcordia University
FundersDeutscher Akademischer Austauschdienst
KeywordsChemistryAqueous solutionMethanolReaction rate constantKineticsMineralization (soil science)ExcimerXenonAnalytical Chemistry (journal)PhotochemistryInorganic chemistryChromatographyPhysical chemistryOrganic chemistryFluorescence

Abstract

fetched live from OpenAlex

The 172 nm irradiation of aqueous solutions of organic compounds with a xenon excimer (Xe2∗) flow-through photoreactor leads to the oxidation and mineralization of the organic content of the water. In view of potential technical applications, it is of fundamental interest to investigate temperature effects on the efficacy of these processes. Therefore, water samples containing Rhodamin B (RhB) or methanol as model substrates were vacuum-UV (VUV) irradiated under controlled thermal conditions. The pseudo–first-order bleaching kinetics of RhB solutions and the pseudo–zero-order reaction kinetics of oxidation and mineralization of aqueous methanol solutions were quantitatively established by UV/Vis spectrophotometry, by measurement of the methanol concentration using capillary gas chromatography and the total organic carbon (TOC) content of the solutions, respectively. In the water temperature range from 20 to 50°C no significant effects on the pseudo–first-order rate constant of RhB bleaching (kRhB) and the pseudo–zero-order rate constants of methanol oxidation (kMeOH) and TOC diminution (kTOC) were observed with our particular flow-through photoreactor system using a Xe2∗ excilamp.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.219
Threshold uncertainty score0.375

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.015
GPT teacher head0.211
Teacher spread0.196 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it