Construction of Nonclassical Type-I Heterojunction for Efficient Photodegrading Tetracycline DOI
Huan Yan, Xinhui Lu, Guoqiang Shen

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(45), P. 19589 - 19599

Published: Nov. 1, 2024

Traditional Type-I heterojunctions, the combination of large- and narrow-bandgap semiconductors, possess a long electron transmission path an electron–hole confinement region, making them not conducive to improving catalytic performance. Hence, few studies about heterostructure combined with large narrow bandgap in chemocatalysis were invested, especially terms reaction mechanism. Herein, (CdS) (hexagonal boron nitride, h-BN) selected as research objects fabricate h-BN/CdS heterojunction by Joule heating ultrafast procedure. Density functional theory (DFT) calculations performed showed that heterojunctions photogenerated electrons (e–) transferred from h-BN CdS, while holes (h+) moved conversely, which is completely different classical heterojunctions. Thus, nonclassical was successfully constructed, proved DFT experimental verification, revealed excellent visible light response photocatalytic degradation ability tetracycline (TC). The optimized exhibited high rate 84.78% under irradiation. Additionally, applicability expanded photodegradation water environments. A materials proposed, opened up new for efficient photocatalysis antibiotic wastewater degradation.

Language: Английский

Electrochemical Approaches for Radioactive Wastewater Treatments DOI

Mu’nisatun Sholikhah,

Harmesa Harmesa,

Septy Sinaga

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(8)

Published: Feb. 1, 2025

Abstract Radioactive waste has become a critical concern due to its adverse impacts on the sustainability of living organisms and environment. The is widely generated from various nuclear activities, such as power generation, healthcare, industry, mining, research. Recently, there been an intense focus developing electrochemical techniques for radioactive management these offer several advantages compared other methods, including cleanliness, versatility, environmental friendliness, ease operation, good compatibility with methods. This article aims provide comprehensive overview electrochemical‐based methods development their capabilities extract radionuclides liquid wastes. follows traditional literature review method, unsystematically collecting publications 2009 2024 analyzing them using theoretical approach comparative data. Various techniques, electrodeposition, electro‐Fenton, electrodialysis, electrocoagulation flotation, microbial fuel cells, electrosorption/capacitive deionization, photoelectrocatalysis, have discussed. main includes radionuclide types, electrodes, process conditions, well extraction effectiveness. highlights application technologies in treatment provides analysis support future research development.

Language: Английский

Citations

0
Modulating N‐Heterocyclic Microenvironment in β‐Ketoenamine Covalent Organic Frameworks to Boost Overall Photosynthesis of H2O2 DOI

Yangpeng Zhang,

Youting Wu, Hailing Ma

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

Abstract Covalent Organic Frameworks (COFs) have emerged as promising platforms for photocatalytic synthesis of hydrogen peroxide (H 2 O ) due to their tunable chemical compositions and efficient catalytic functionalities. Inspired by the role microenvironment in enzyme catalysis, this study introduces various N‐heterocyclic species into β ‐ketoenamine COFs (N x ‐COFs, where N represents number nitrogen atoms N‐heterocycle) regulate around sites on acceptor‐donor‐acceptor (A‐D‐A) foroverall H photosynthesis pure water. The ‐COFs exhibit distinct photosynthetic rates following sequence 3 ‐COF > 1 0 ‐COF, with triazine structure showing highest generation rate (4881 µmol h −1 g decent solar‐to‐chemical conversion (SCC) efficiency (0.413%), surpassing many existing COF‐based catalysts. In situ characterization theoretical calculations support experimental results, revealing that promote through both an indirect stepwise single‐electron oxygen reduction reaction (1e − ORR) mechanism a direct two‐electron water oxidation (2e WOR) pathway. This advances design paradigm photocatalysts modulating within A‐D‐A COFs, paving way development more robust systems overall .

Language: Английский

Citations

0
Novel hydrogen-bonded organic framework (HOF) for highly efficient photocatalysis: From structural designs to multifunctional applications DOI

Akanksha Chauhan,

Rohit Kumar,

Pankaj Raizada

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 535, P. 216634 - 216634

Published: March 20, 2025

Language: Английский

Citations

0
Hydrogen-bonded organic frameworks (HOFs) from design to environmental application DOI
Ahmed M. Elewa

Journal of Industrial and Engineering Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

Citations

2
Construction of Nonclassical Type-I Heterojunction for Efficient Photodegrading Tetracycline DOI
Huan Yan, Xinhui Lu, Guoqiang Shen

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(45), P. 19589 - 19599

Published: Nov. 1, 2024

Traditional Type-I heterojunctions, the combination of large- and narrow-bandgap semiconductors, possess a long electron transmission path an electron–hole confinement region, making them not conducive to improving catalytic performance. Hence, few studies about heterostructure combined with large narrow bandgap in chemocatalysis were invested, especially terms reaction mechanism. Herein, (CdS) (hexagonal boron nitride, h-BN) selected as research objects fabricate h-BN/CdS heterojunction by Joule heating ultrafast procedure. Density functional theory (DFT) calculations performed showed that heterojunctions photogenerated electrons (e–) transferred from h-BN CdS, while holes (h+) moved conversely, which is completely different classical heterojunctions. Thus, nonclassical was successfully constructed, proved DFT experimental verification, revealed excellent visible light response photocatalytic degradation ability tetracycline (TC). The optimized exhibited high rate 84.78% under irradiation. Additionally, applicability expanded photodegradation water environments. A materials proposed, opened up new for efficient photocatalysis antibiotic wastewater degradation.

Language: Английский

Citations

0