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Record W4410218593 · doi:10.1016/j.clay.2025.107854

Construction of hierarchically structured Bi2MoO6/g-C3N4/kaolinite S-scheme heterojunction photocatalyst for the efficient removal of formaldehyde and tetracycline under visible light

2025· article· en· W4410218593 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

VenueApplied Clay Science · 2025
Typearticle
Languageen
FieldEnergy
TopicAdvanced Photocatalysis Techniques
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsPhotocatalysisHeterojunctionFormaldehydeTetracyclineVisible spectrumScheme (mathematics)KaoliniteMaterials scienceChemistryChemical engineeringOptoelectronicsMineralogyCatalysisOrganic chemistryMathematicsEngineering

Abstract

fetched live from OpenAlex

A novel hierarchically structured Bi₂MoO₆/g-C₃N₄/kaolinite ternary S-scheme heterojunction photocatalyst was synthesized by a simple calcination crystallization and solvothermal method, with exfoliated kaolinite as the carrier. Detailed analysis of the structure and morphology of the composite was conducted through a series of characterization techniques. The results indicate that the incorporation of kaolinite notably enhanced the photocatalytic performance of the composite. Kaolinite not only acts as a carrier, providing a high specific surface area and abundant adsorption sites, but also facilitates the migration and separation of photogenerated carriers through its unique layered structure and surface chemical properties. Consequently, this ternary composite exhibits excellent degradation performance towards tetracycline and formaldehyde under visible light irradiation, with reaction rate constants that are 15.5 times and 8.05 times higher than that of pure g-C₃N₄, respectively. Radical scavenger experiments reveal that hydroxyl radical (•OH) is the primary active specie. Finally, we discuss the synergistic mechanism of kaolinite in the composite, including its enhancement of light capture ability, improvement of charge separation efficiency, and promotion of active species generation. Overall, this study provides new insights for developing highly efficient and stable kaolinite-based visible-light-driven materials for environmental remediation.

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)0.001
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 score0.210
Threshold uncertainty score0.593

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.002
Science and technology studies0.0000.001
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 head0.008
GPT teacher head0.275
Teacher spread0.267 · 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