MétaCan
Menu
Back to cohort
Record W2175865729 · doi:10.1021/bk-2013-1124.ch013

Dye-Sensitized Photocatalyst: A Breakthrough in Green Energy and Environmental Detoxification

2013· book-chapter· en· W2175865729 on OpenAlex
Pankaj Chowdhury, Hassan Gomaa, Ajay K. Ray

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

VenueACS symposium series · 2013
Typebook-chapter
Languageen
FieldEnergy
TopicAdvanced Photocatalysis Techniques
Canadian institutionsWestern University
Fundersnot available
KeywordsPhotocatalysisPhotochemistryMaterials scienceVisible spectrumElectron transferPhotodegradationChemistryOrganic chemistryCatalysisOptoelectronics

Abstract

fetched live from OpenAlex

Sensitization of semiconductor material is well recognized in the field of photography and photo-electrochemistry. Recently, dye sensitization technique has found its application in solar cells. Dye sensitization can further be applied for water treatment and sacrificial hydrogen generation using photocatalysis. Success of the process depends on the choice of suitable dye, semiconductor material, electron donor, and light sources. Attachment of dye molecule on photocatalyst surface leads to subsequent electron transfer into the conduction band of semiconductor, therefore strongly bound anchoring groups are preferred. Fixation of dye molecule on semiconductor surface also improves the electron transfer process. Incorporation of noble metals on semiconductor surface enhances their photocatalytic activity by reducing the electron/hole recombination rate. Dye-sensitized photocatalyst is applied for degradation of a wide range of compounds such as i) aliphatic compounds (carbon tetrachloride, trichloroethylene, hydrazine, and pesticides), ii) aromatic compounds (non-sensitizing dye, phenol, chlorophenol, and benzyl alcohol) in aqueous medium. Hydrogen generation is also possible in visible light with dye-sensitized photocatalyst in presence of sacrificial reagents. Ruthenium based dyes in solar cells and dye-sensitized photocatalysis are the best reported so far, however, researchers are gradually switching towards inexpensive and environment-friendly organic dyes and/or natural dyes from vegetable sources. Eosin Y is an organic dye which has been widely used for hydrogen generation, reportedly providing quantum yields between 9-19 %.

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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.535
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0010.000
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 head0.008
GPT teacher head0.203
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