Cooperative Coupling of Oxidative Organic Synthesis and Hydrogen Production over Semiconductor-Based Photocatalysts

Chemical Reviews, Journal Year: 2021, Volume and Issue: 121(21), P. 13051 - 13085

Published: Aug. 11, 2021

Merging hydrogen (H2) evolution with oxidative organic synthesis in a semiconductor-mediated photoredox reaction is extremely attractive because the clean H2 fuel and high-value chemicals can be coproduced under mild conditions using light as sole energy input. Following this dual-functional photocatalytic strategy, dreamlike pathway for constructing C–C/C–X (X = C, N, O, S) bonds from abundant readily available X–H bond-containing compounds concomitant release of fulfilled without need external chemical reagents, thus offering green fascinating synthetic strategy. In review, we begin by presenting concise overview on general background traditional production then focus fundamental principles cooperative coupling selective simultaneous utilization photoexcited electrons holes over semiconductor-based catalysts to meet economic sustainability goal. Thereafter, put dedicated emphasis recent key progress various transformations, including alcohol oxidation, methane conversion, amines coupling, cross-coupling, cyclic alkanes dehydrogenation, reforming lignocellulosic biomass, so on. Finally, remaining challenges future perspectives flourishing area have been critically discussed. It anticipated that review will provide enlightening guidance rational design such system, thereby stimulating development economical environmentally benign solar generation value-added fine chemicals.

Language: Английский

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Radical generation and fate control for photocatalytic biomass conversion

Nature Reviews Chemistry, Journal Year: 2022, Volume and Issue: 6(3), P. 197 - 214

Published: Feb. 10, 2022

Language: Английский

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Construction of Bi-assisted modified CdS/TiO2 nanotube arrays with ternary S-scheme heterojunction for photocatalytic wastewater treatment and hydrogen production

Fuel, Journal Year: 2022, Volume and Issue: 322, P. 124163 - 124163

Published: April 11, 2022

Language: Английский

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Electro-Reforming Polyethylene Terephthalate Plastic to Co-Produce Valued Chemicals and Green Hydrogen

The Journal of Physical Chemistry Letters, Journal Year: 2022, Volume and Issue: 13(2), P. 622 - 627

Published: Jan. 12, 2022

Upcycling plastic waste pollution for sustainable resources and energy is an ideal solution to waste-related environmental issues. Polyethylene terephthalate (PET), one of the most prominent single-use daily plastics with up millions tons produced annually, has recently been explored respect chemical recycling ameliorate its impact. In this work, we report electrochemical upcycling approach electrocatalytic oxidation PET hydrolysate using Cu-based nanowire catalysts. We demonstrate that electrocatalyst can catalyze ethylene glycol (EG) molecule derived from toward formate high selectivity exhibit a lower onset potential EG than water oxidation. Experimental density functional theory calculation results reveal pathway on CuO selectively break C-C bond generate formic acid. This work sheds light employing earth-abundant metal catalysts convert produce valued chemicals green hydrogen.

Language: Английский

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Photoreforming lignocellulosic biomass for hydrogen production: Optimized design of photocatalyst and photocatalytic system

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 138980 - 138980

Published: Sept. 6, 2022

Language: Английский

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Localized Surface Plasmon Resonance Promotes Metal–Organic Framework‐Based Photocatalytic Hydrogen Evolution

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(33)

Published: April 25, 2023

Abstract Combining metal nanoparticles (NPs) featured with localized surface plasmon resonance (LSPR) metal–organic framework (MOF)‐based photocatalysts is a novel means for achieving efficient separation of electron–hole pairs. Herein, the Au@NH 2 ‐UiO‐66/CdS composites are successfully synthesized by encapsulating Au NPs LSPR into NH ‐UiO‐66 nanocage, further growing CdS on ‐UiO‐66, which exhibits higher photocatalytic activity in hydrogen evolution reaction under visible‐light irradiation than that and CdS, respectively. Transient absorption measurements reveal MOF not only transit station electrons generated from to Au, but also receiver hot plasmonic Au@MOF/CdS composites. Thus, LSPR‐induced electron transfer an important manifestation prolong carrier lifetime enhance performance. This work provides insights investigating photoinduced dynamics nanomaterials effects enhancing MOF‐based

Language: Английский

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Photocatalytic Production of Syngas from Biomass

Accounts of Chemical Research, Journal Year: 2023, Volume and Issue: 56(9), P. 1057 - 1069

Published: April 12, 2023

ConspectusAs a renewable solar energy and carbon carrier, biomass exploration has received global attention. Photocatalytic valorization of into fuels chemicals is promising sustainable method for future chemical production. Photocatalysis the potential to accomplish reactions under ambient conditions due unique reaction mechanisms involving photoinduced charge carriers recently been recognized as an efficient feasible technology conversion. Biomass widely used sacrificial agent scavenge holes in photocatalytic hydrogen evolution, eventually degraded CO2 with minor amount CO. The generation CO instead more economical but also challenge photoreforming conditions.This new research direction, while until now there still lack comprehensive review article summarize provide prospects this topic. This Account will highlight our contributions direction reforming syngas (CO + H2). In 2020, we first reported conversion biopolyols sugars by employing defect-rich Cu-TiO2 nanorod photocatalyst found that formic acid key intermediate Further study revealed facet-dependent electron-trapping state on anatase TiO2 affect dehydration activity intermediates regulating electron transfer process during reaction, selective FA or from was achieved via exposing (100) (101) facets, respectively. Visible light-driven further over CdS-based photocatalyst. Sulfate modification CdS ([SO4]/CdS) constructed proton acceptor, thus efficiently facilitating proton-coupled process. Besides, put forward oxygen-controlled strategy increase rate without significant decrease selectivity controlling O2/substrate ratio. Based system, Z-scheme CdS@g-C3N4 core-shell structure CdO-CdS semicoherent interface were created facilitate enhance O2 activation, increasing rate. Moreover, developed photoelectrochemical approach separately produce H2 biomass. Nitrogen doping hexagonal WO3 nanowire array photoanode. built-in electric field generated nitrogen promoted transfer, hence improving efficiency PEC sugars. systematically analyze challenges route reforming, factors affecting give insight design systems.

Language: Английский

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Heterogeneous photocatalytic conversion of biomass to biofuels: A review

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146794 - 146794

Published: Oct. 20, 2023

Language: Английский

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Generation of Lattice Strain in CdS Promotes Photocatalytic Reduction of CO₂

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(7), P. 4648 - 4655

Published: March 13, 2024

The key to photocatalysis lies in the efficient separation and migration of photogenerated carriers surface for participation reaction. However, recombination electrons holes is a major hindrance that reduces activity. Herein, we developed method introduce lattice strain by regulating crystallinity material, thus resulting an intensive polarization internal electric field, which can promote process improve efficiency photocatalysis. degree be controlled solvothermal temperature. Compared with CdS-160 °C, CdS-100 °C larger field contributed 7-fold enhanced photocatalytic CO evolution from CO2; addition, CO/H2 ratio was also increased 4 times. This study reports important effects on carrier migration, providing valuable insights designing photocatalysts.

Language: Английский

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Photocatalytic biomass conversion for hydrogen and renewable carbon-based chemicals

Joule, Journal Year: 2024, Volume and Issue: 8(3), P. 604 - 621

Published: Jan. 22, 2024

Language: Английский

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