Photoreforming of waste plastic by B‐doped carbon nitride nanotube: Atomic‐level modulation and mechanism insights

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

Published: Jan. 23, 2025

Abstract Photoreforming waste plastics into valuable products is a promising approach, but it requires efficient, eco‐friendly photocatalysts and deeper understanding of catalytic mechanism. We have developed B‐doped g‐C 3 N 4 nanotube catalyst with well‐defined structure for photoreforming poly(ethylene terephthalate) (PET) chemicals H 2 . This achieved evolution rate 3240 μmol g catal −1 h , outperforming previous cadmium‐free catalysts. It also oxidized PET to higher‐value organic acids via hole oxidation Experimental theoretical calculations showed that B atom doping not only greatly increased the catalyst's active sites, significantly accelerated electron–hole separation transfer rate, optimized adsorption activation behavior substrate. Using concentrated sunlight, we 475 real‐world in seawater. Techno‐economic analysis suggests processing 50,000 tons plastic annually could yield profit $7.45 million.

Language: Английский

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Achiral and chiral metal-organic frameworks (MOFs) as an efficient catalyst for organic synthesis

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 533, P. 216536 - 216536

Published: Feb. 26, 2025

Language: Английский

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Upcycling of monomers derived from waste polyester plastics via electrocatalysis

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

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Manipulating Trimetal Catalytic Activities for Efficient Urea Electrooxidation-Coupled Hydrogen Production at Ampere-Level Current Densities

ACS Nano, Journal Year: 2024, Volume and Issue: 18(52), P. 35654 - 35670

Published: Dec. 11, 2024

Replacing the oxygen evolution reaction (OER) with urea oxidation (UOR) in conjunction hydrogen (HER) offers a feasible and environmentally friendly approach for handling urea-rich wastewater generating energy-saving hydrogen. However, deactivation detachment of active sites powder electrocatalysts reported hitherto present significant challenges to achieving high efficiency sustainability production. Herein, self-supported bimetallic nickel manganese metal–organic framework (NiMn-MOF) nanosheet its derived heterostructure composed NiMn-MOF decorated ultrafine Pt nanocrystals (PtNC/NiMn-MOF) are rationally designed. By leveraging synergistic effect Mn Ni, along strong electronic interaction between PtNC at interface, optimized catalysts (NiMn-MOF PtNC/NiMn-MOF) exhibit substantially reduced potentials 1.459 −0.129 V reach 1000 mA cm–2 during UOR HER. Theoretical calculations confirm that Mn-doping heterointerface regulate d-band center catalyst, which turn enhances electron transfer facilitates charge redistribution. This manipulation optimizes adsorption/desorption energies reactants intermediates both HER UOR, thereby significantly reducing energy barrier rate-determining step (RDS) enhancing electrocatalytic performance. Furthermore, degradation rates PtNC/NiMn-MOF (96.1%) (90.3%) higher than those Ni-MOF most advanced catalysts. work provides valuable insights designing applicable treatment

Language: Английский

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Mechanism design and construction of efficient Ni-Mn bimetallic cooperative catalytic interface for benzyl alcohol electrooxidation

Materials Today Energy, Journal Year: 2024, Volume and Issue: unknown, P. 101780 - 101780

Published: Dec. 1, 2024

Language: Английский

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