Photosynthesis of hydrogen peroxide in water: a promising on-site strategy for water remediation

Chu, Wenhai; Wang, Wuming; Deng, Yang; Cheng, Peng

doi:10.1039/d2ew00504b

Cited by 5 publications

(3 citation statements)

References 181 publications

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“…In many water purification strategies, H 2 O 2 is used as an oxidant thanks to its safeness and its green character; however, it typically requires activation from a catalyst to be converted into more reactive oxidizing agents. 516,529,530 For the sake of practicality, easily available dyes, such as methyl orange (MO), methylene blue (MB) and rhodamine B (RhB), are employed in photodegradation studies as model molecules with UV-Vis spectroscopy monitoring. 531 As reported by Cui et al, pristine g-C 3 N 4 is capable of activating H 2 O 2 through visible light excitation, and driving the photogenerated oxy-radical reactive species to decompose RhB as a model reaction.…”

Section: Chem Soc Revmentioning

confidence: 99%

Carbon nitride based materials: more than just a support for single-atom catalysis

et al. 2023

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Section: Chem Soc Revmentioning

confidence: 99%

Carbon nitride based materials: more than just a support for single-atom catalysis

et al. 2023

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“…Solar and lithium batteries are good examples of technologies that are part of our daily lives, as are catalytic converters of cars or environmentally friendly building materials. Another example is constituted by the photosynthetic glass [77] aimed at realizing artificial photosynthesis, considered the Holy Grail of sustainability [78].…”

Section: Corporal Dimensionmentioning

confidence: 99%

High School Sustainable and Green Chemistry: Historical–Epistemological and Pedagogical Considerations

Celestino

2023

Sustainable Chemistry

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In this paper, a distinction is first made between environmental, sustainable, and green chemistry; the last two are then examined in relation to the more general problem of environmental education. A brief historical digression on the Science, Technology, and Society movement attempts to dissect reasons why chemistry is seen by the general public as a problem, not as a decisive resource for the realization of the ecological transition. Although sustainable and green chemistry can be decisive in overcoming the insularity of chemical disciplines in high school, it is not well-embedded in educational practices. This situation is slowly changing thanks to the implementations of systems thinking in teaching practice, showing interconnections between the molecular world and sustainability. Historical and epistemological studies provide an all-encompassing framework for the relationship between chemistry and the environment in a broad sense, giving a solid foundation for educational projects. Specific operational goals can help chemical educators in supporting real learning, as well as an examination of the fundamental axes of sustainable and green chemistry, according to the criteria of Scientific and Technological Literacy. Finally, the results of some research carried out in secondary school are presented. These results demonstrate the effectiveness of the interdisciplinary-systemic approach in teaching chemistry as well as in guiding future green careers and reducing the gender gap, preparing high school students in the best possible way to face the challenges of an increasingly interconnected and complex world.

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“…Photocatalytic hydrogen peroxide (H 2 O 2 ) synthesis through two-electron oxygen reduction driven by sunlight is of great interest in the field of photocatalysis. , Various organic photocatalysts, inorganic photocatalysts, and composite photocatalysts are well developed for enhancing H 2 O 2 photosynthesis. − Among them, Pd metal-isolated clusters (ICs), considered as the intermediate matter between nanomaterials and single atoms, show high activity and selectivity in the photosynthesis of H 2 O 2 owing to their high overlap of d-electron orbitals. − Despite these, Pd ICs usually suffer from poor stability caused by high surface free energy.…”

Section: Introductionmentioning

confidence: 99%

Fluorination of Covalent Organic Framework Reinforcing the Confinement of Pd Nanoclusters Enhances Hydrogen Peroxide Photosynthesis

Liu

Tan

et al. 2023

J. Am. Chem. Soc.

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Metal-isolated clusters (MICs) physically confined on photoactive materials are of great interest in the field of photosynthesis of hydrogen peroxide (H 2 O 2 ). Despite recent important endeavors, weak confinement of MICs in the reported photocatalytic systems leads to their low catalytic activity and stability. Herein, we report a new strategy of fluorinated covalent organic frameworks (COFs) to strongly confine Pd ICs for greatly boosting the photocatalytic activity and stability of H 2 O 2 photosynthesis. Both experimental and theoretical results reveal that strong electronegative fluorine can increase the metal−support interaction and optimize the d-band center of Pd ICs, thus significantly enhancing the stability and activity of photocatalytic H 2 O 2 . An optimal TAPT-TFPA COFs@Pd ICs photocatalyst delivers a stable H 2 O 2 yield rate of 2143 μmol h −1 g −1 . Most importantly, the as-made TAPT-TFPA COFs@Pd ICs exhibit high catalytic stability over 100 h, which is the best among the reported materials.

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Photosynthesis of hydrogen peroxide in water: a promising on-site strategy for water remediation

Abstract: H2O2 is a green and clean oxidant for environmental remediation. On-site H2O2 generation is a cost-effective process for long-term and full-scale water remediation without a need for transportation and storage....

Cited by 5 publications

References 181 publications

Carbon nitride based materials: more than just a support for single-atom catalysis

Carbon nitride based materials: more than just a support for single-atom catalysis

High School Sustainable and Green Chemistry: Historical–Epistemological and Pedagogical Considerations

Fluorination of Covalent Organic Framework Reinforcing the Confinement of Pd Nanoclusters Enhances Hydrogen Peroxide Photosynthesis

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