Bio-removal of emerging pollutants by advanced bioremediation techniques

Environmental Research, Journal Year: 2022, Volume and Issue: 214, P. 113936 - 113936

Published: Aug. 3, 2022

Language: Английский

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Carbon dots-based nanomaterials for fluorescent sensing of toxic elements in environmental samples: Strategies for enhanced performance

Chemosphere, Journal Year: 2022, Volume and Issue: 300, P. 134515 - 134515

Published: April 6, 2022

Language: Английский

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Selective removal of antibiotics over MgAl₂O₄/C₃N₄/YMnO₃ photocatalysts: Performance prediction and mechanism insight

Journal of the American Ceramic Society, Journal Year: 2022, Volume and Issue: 106(4), P. 2420 - 2442

Published: Dec. 15, 2022

Abstract A simple polyacrylamide gel method combined with low temperature sintering technology has been used to synthesize the C–O functional groups grafted MgAl 2 O 4 /C 3 N /YMnO (MAO–CN–YMO) heterojunction photocatalysts enhanced visible‐light‐induced photodegradation toward oxytetracycline hydrochloride (OTC‐HCl). variety of characterization methods are gain insight into phase purity, crystal structure, microstructure, group information, elemental composition, surface defect, light response capability, and photocatalytic activity as‐synthesized samples. The influences mass ratios m CN / YMO , MAO /( + ) in CN–YMO, CN–MAO, MAO–CN–YMO on for degradation OTC‐HCl was also discussed, optimal ratio is identified as 15 wt%. experiments confirmed that had high selectivity antibiotics. prediction made by a intelligent algorithm models. results whale optimization highly consistent experimental results. Combined energy band theory high‐performance liquid chromatography–tandem spectrometry, free radicals reaction solution preferentially attacked –CH –NCH –OH during heterostructure photocatalysts, then attack –C=O –C=O–NH finally perform ring‐opening degrade nontoxic harmless products small molecules such CO H O, NH . This work provides new idea development novel double p–n junction antibiotic multiple algorithms.

Language: Английский

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Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Polymers, Journal Year: 2022, Volume and Issue: 14(11), P. 2153 - 2153

Published: May 25, 2022

Although there is significant progress in the research of carbon dots (CDs), some challenges such as difficulty large-scale synthesis, complicated purification, low quantum yield, ambiguity structure-property correlation, electronic structures, and photophysics are still major obstacles that hinder commercial use CDs. Recent advances modification, characterization, applications CDs summarized this review. We illustrate examples to correlate process parameters, compositions, properties, performances CDs-based materials. The synthesis approach, purification methods, modification/doping methods for also presented. Moreover, kilogram-scale fabrication given. properties performance can be tuned by incubation time precursor ratio, laser pulse width, average molar mass polymeric precursor. Surface passivation has a influence on particle sizes factors affect CDs, polarity-sensitive fluorescence effect concentration-dependent multicolor luminescence, together with size surface states synchrotron near-edge X-ray absorption fine structure (NEXAFS) test been proved useful tool explore correlation among structural features, photophysics, emission bioimaging, sensing, therapy, energy, fertilizer, separation, security authentication, food packing, flame retardant, co-catalyst environmental remediation were reviewed article. Furthermore, roles doped their composites these demonstrated.

Language: Английский

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Bioengineered microbial strains for detoxification of toxic environmental pollutants

Environmental Research, Journal Year: 2023, Volume and Issue: 227, P. 115665 - 115665

Published: March 11, 2023

Language: Английский

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