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Record W4394789657 · doi:10.1016/j.surfin.2024.104282

TiO2-NPs/ZnO-NPs@Co3O4 nanocomposite from natural extracts for the Rhodamine 6 G photodegradation

2024· article· en· W4394789657 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

VenueSurfaces and Interfaces · 2024
Typearticle
Languageen
FieldEnergy
TopicTiO2 Photocatalysis and Solar Cells
Canadian institutionsUniversity of British Columbia
FundersFundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
KeywordsMaterials sciencePhotodegradationNanocompositeRhodamine BRhodamineNanoparticleChemical engineeringNuclear chemistryPhotocatalysisNanotechnologyOrganic chemistryFluorescenceOpticsCatalysis

Abstract

fetched live from OpenAlex

Socio-environmental issues are frequent in industrial growth, especially wastewater containing dyes resulting in toxic effects on fauna and flora. Parallelly, synthesizing nanomaterials using extracts allows for improved properties with fewer environmental effects. In this way, the present study aims to synthesize using natural extracts and characterize a ceramic nanocomposite containing titanium and zinc dioxide doped with tricobalt tetroxide nanoparticles (TiO 2 NPs/ZnO NPs@Co 3 O 4 NPs) for the removal of Rhodamine 6 G under visible radiation. TiO 2 -NPs/ZnO-NPs@Co 3 O 4 -NPs ceramic nanocomposite showed a heterogeneous morphology with a negative charge surface of -16.73 mV, V-type isotherm and H1 hysteresis, surface area (S BET ) of 62.2 m² g −1 , pore diameter (Dp) of 10.41 nm and bang gap energy (Eg) of 2.98 eV. The ideal condition of photocatalytic heterogeneous was of [Rh 6 G] = 3.18 mg L −1 , [NPs] = 1 g L −1 and pH = 7 with 99.97 % for the Rh 6 G photodegradation and the apparent rate of the pseudo first-order reaction ( k ) of 0.0193 min −1 . After IV cycles of TiO 2 -NPs/ZnO-NPs@Co 3 O 4 -NPs, there was a small reduction in Rh 6 G dye removal (99.97 to 85.71 %), confirming the photocatalytic stability of the nanocatalyst. Ecotoxicity tests were carried out with Lactuca sativa seeds and demonstrated root radicular inhibition of 6.41 % to 20.73% ranging from 12.5 - 100 mg L −1 . Machine Learning (ML) study was used to predict the Rh 6 G photodegradation mechanism, where the dye molecules successively cleavage such aromatic structure and carbonic acid to produce smaller fragments that are further form CO 2 and H 2 O. Therefore, ceramic nanocomposite presents potential application as a nanocatalyst for the wastewater treatment.

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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.473
Threshold uncertainty score0.659

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
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 head0.014
GPT teacher head0.254
Teacher spread0.240 · 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