Molecular level removal of antibiotic resistant bacteria and genes: A review of interfacial chemical in advanced oxidation processes

Water Research, Journal Year: 2024, Volume and Issue: 254, P. 121373 - 121373

Published: Feb. 23, 2024

Language: Английский

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Emerging Photoreforming Process to Hydrogen Production: A Future Energy

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)

Published: April 16, 2024

Abstract In the quest of renewable energy technologies, solar photoreforming emerges as one affordable yet challenging process for converting biomass into hydrogen, hydrocarbon fuels, and chemicals. This review highlights state‐of‐the‐art photoreforming, elucidating its underlying mechanisms conversion dissipated polymers H 2 valuable Biomass feedstocks such carbohydrates, agricultural residues, glycopolymers, food wastes, waste plastics are evaluated based on their chemical composition, content, sustainability aspects, exploring selection appropriate bio‐renewable resources, considering abundance, availability, potential hydrogen production. The impact diverse parameters efficiency is explored, encompassing factors like reaction temperature, pH, catalyst loading, reactor design, solvent effect, light intensity across various sacrificial substrates. discussion also considers correlation with production rate, selectivity, efficiency. buckles design synthesis functional photocatalysts biomass‐derived feedstock, highlighting photocatalytic (PC) properties in reforming processes related feedstock chemicals biofuel. delves pathways future advancements including artificial intelligence (AI) machine learning (ML), alongside addressing challenges insightful perspectives within this evolving field green energy.

Language: Английский

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Selective Upcycling of Polyethylene Terephthalate towards High‐valued Oxygenated Chemical Methyl p‐Methyl Benzoate using a Cu/ZrO₂ Catalyst

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(11)

Published: Jan. 10, 2024

Abstract Upgrading of polyethylene terephthalate (PET) waste into valuable oxygenated molecules is a fascinating process, yet it remains challenging. Herein, we developed two‐step strategy involving methanolysis PET to dimethyl (DMT), followed by hydrogenation DMT produce the high‐valued chemical methyl p‐methyl benzoate (MMB) using fixed‐bed reactor and Cu/ZrO 2 catalyst. Interestingly, discovered phase structure ZrO significantly regulates selectivity products. Cu supported on monoclinic (5 %Cu/m‐ZrO ) exhibits an exceptional 86 % for conversion MMB, while tetragonal %Cu/t‐ZrO predominantly produces p‐xylene (PX) with 75 %. The superior MMB over Cu/m‐ZrO can be attributed weaker acid sites present m‐ZrO compared t‐ZrO . This weak acidity leads moderate adsorption capability facilitating its desorption. Furthermore, DFT calculations reveal catalyst shows higher effective energy barrier cleavage second C−O bond Cu/t‐ZrO catalyst; this distinction ensures high MMB. not only presents approach upgrading fine chemicals but also offers controlling primary product in multistep reaction.

Language: Английский

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Interfacial solar‐driven steam and electricity co‐generation using Hydrangea‐like graphene by salt‐assisted carbonization of waste polylactic acid

SusMat, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 23, 2024

Abstract The interfacial solar steam generation and water evaporation–driven power are regarded as promising strategies to address energy crisis. However, it remains challenging construct low‐cost evaporators for freshwater electricity co‐generation. Herein, we report a salt‐assisted carbonization strategy of waste polylactic acid prepare Hydrangea flower–like graphene build bi‐functional graphene‐based evaporator. evaporator presents merits good sunlight absorption, photo‐to‐thermal conversion property, transport, thermal management capability, negatively charged pores the continuous diffusion ions. Hence, achieves evaporation rate 3.0 kg m −2 h −1 output voltage 0.425 V, surpassing many advanced evaporators/generators. Molecular dynamics simulation result proves that more Na + ions attracted by functional groups, especially –COOH/C–OH, promote selectivity in nanochannels. This work offers new opportunities multifunctional

Language: Английский

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Recent advancement on photocatalytic plastic upcycling

Chemical Science, Journal Year: 2023, Volume and Issue: 15(5), P. 1611 - 1637

Published: Dec. 27, 2023

This review critically summarizes the recent achievement on various photocatalysts for plastic upcycling. A range of key factors affecting reaction kinetics/thermodynamics are also summarized.

Language: Английский

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Hollow Cu_2‐xS@NiFe Layered Double Hydroxide Core–Shell S‐Scheme Heterojunctions with Broad‐Spectrum Response and Enhanced Photothermal‐Photocatalytic Performance

Small, Journal Year: 2024, Volume and Issue: 20(33)

Published: March 29, 2024

Designing a reasonable heterojunction is an efficient path to improve the separation of photogenerated charges and enhance photocatalytic activity. In this study, Cu

Language: Английский

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Electrocatalytic upcycling of plastic waste: Progress, challenges, and future

Electron, Journal Year: 2024, Volume and Issue: 2(3)

Published: Aug. 1, 2024

Abstract The escalating accumulation of plastic waste has been developed into a formidable global environmental challenge. Traditional disposal methods such as landfilling and incineration not only exacerbate degradation by releasing harmful chemicals greenhouse gases, but also squander finite resources that could otherwise be recycled or repurposed. Upcycling is kind recycling technology converts high‐value helps to avoid resource pollution. Electrocatalytic upcycling emerges novel distinguished its mild operational conditions, high transformation efficiency product selectivity. This review commences with an overview the employed in management respective advantages inherent limitations are delineated. different types upcycled electrocatalytic strategy then discussed process examined together mechanisms underlying upcycling. Furthermore, structure‐activity relationships between electrocatalysts performance elucidated. aims furnish readers comprehensive understanding techniques for provide guidance design towards efficient transformation.

Language: Английский

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Efficient photocatalytic conversion of xylose to co-produce xylonic acid and CO via a dual S-scheme heterojunction photocatalyst between carbon nitride and CuInS₂ quantum dot-sensitized ZnIn₂S₄

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(5), P. 2893 - 2902

Published: Jan. 1, 2024

Heterojunction photocatalysts receive significant interest due to their high performance and easy fabrication.

Language: Английский

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Selective Photoreforming of Waste Plastics into Diesel Olefins via Single Reactive Oxygen Species

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(30)

Published: May 6, 2024

Abstract The accumulation of plastic waste poses a pressing environmental challenge. Catalytic conversion stands out as an ideal approach for plastics upcycling, particularly through solar‐driven photoreforming. However, due to the common effects multiple reactive oxygen species (ROS), selectively generating high‐value chemicals becomes challenging. In this study, we developed universal strategy achieve >85 % selective production diesel olefins (C 15 –C 28 ) from polyolefin via single ROS. Using tetrakis (4‐carboxyphenyl) porphyrin supramolecular (TCPP) with different central metals example regulate ROS generation, results show Ni‐TCPP facilitates triplet exciton production, yielding 1 O 2 , while Zn‐TCPP generates ⋅O − its strong built‐in electric field (IEF). directly dechlorinates polyvinyl chloride (PVC) electro‐negativity chlorine atoms and low dissociation energy C−Cl bonds, promotes direct dehydrogenation polyethylene (PE) electro‐positivity hydrogen high C−H bonds. This method is universally applicable various systems. Installation experiments further affirm application potential, achieving highest olefin 76.1 μmol h −1 . Such adaptive holds promise addressing global pollution problem.

Language: Английский

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Microenvironment Engineering of Heterogeneous Catalysts for Liquid-Phase Environmental Catalysis

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(20), P. 11348 - 11434

Published: Oct. 9, 2024

Environmental catalysis has emerged as a scientific frontier in mitigating water pollution and advancing circular chemistry reaction microenvironment significantly influences the catalytic performance efficiency. This review delves into engineering within liquid-phase environmental catalysis, categorizing microenvironments four scales: atom/molecule-level modulation, nano/microscale-confined structures, interface surface regulation, external field effects. Each category is analyzed for its unique characteristics merits, emphasizing potential to enhance efficiency selectivity. Following this overview, we introduced recent advancements advanced material system design promote (e.g., purification, transformation value-added products, green synthesis), leveraging state-of-the-art technologies. These discussions showcase was applied different reactions fine-tune regimes improve from both thermodynamics kinetics perspectives. Lastly, discussed challenges future directions engineering. underscores of intelligent materials drive development more effective sustainable solutions decontamination.

Language: Английский

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