Concurrent Photocatalytic CO2 Reduction and 1‐Phenylethanol Oxidation Regulated by Chloride Ion‐Capped CdS@ZnxCd1‐xS@ZnS QDs DOI Open Access

Huakang Yang,

Zining Zhang, Yudong Guo

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Abstract Solar‐driven photocatalytic CO 2 reduction coupled with the oxidation of organic compounds to value‐added chemicals is a promising strategy, which can utilize both photogenerated electrons and holes. Here, gradient alloyed CdS@Zn x Cd 1‐x S@ZnS quantum dots (quasi‐Type II band structure) capped Cl − ligands demonstrate great potential in simultaneous conversion 1‐phenylethanol into syngas pinacol. The passivation maximizes exposure surface‐active sites improves their electronic structure, providing prerequisite for efficient execution redox reactions. More importantly, p–π conjugation between chloride‐ion benzene ring provides bridge ultrafast transfer holes, greatly promotes activation Cα─H bond release mass reactive free hydrogen. This process effectively lowers thermodynamic energy barrier reduction, even as excessively high kinetic barriers arising from accumulation excess protons also enable them self‐couple, leading generation (CO ≈ 75 mmol g −1 h ; selectivity 69.86%). work insights future artificial photosynthesis achieve activity cost‐effective storable renewable resources co‐production substances through synergistic oxidation.

Language: Английский

Functionalized interfaces in MXOF: Bridging high-performance energy storage and pollutant degradation DOI
Sadia Muzammal, Awais Ahmad, Shafaqat Ali

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 116, P. 115899 - 115899

Published: March 6, 2025

Language: Английский

Citations

0
High‐Entropy Design Boosts Visible‐Light‐Induced Photocatalytic Hydrogen Production on Perovskite Oxynitrides DOI Open Access

Kaixin Zhu,

Shengliang Qi, Binglian Liang

et al.

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

Published: March 5, 2025

Semiconducting oxynitrides are attractive candidates for producing solar hydrogen, while the abundant defects evolved during harsh nitridation synthesis and unfavorable charge transfer properties of restrict solar-to-hydrogen conversion. Herein, by virtue high-entropy design, a single-phase oxynitride {LaSmPrNdGd}TiO2N (HE-LnTiO2N) is presented toward alleviating these issues first time. It found that HE-LnTiO2N can be obtained at milder conditions than those conventional one-element oxynitrides, which beneficial to inhibiting formation reduced Ti3+ act as recombination centers. Moreover, combined contribution multiple lanthanide elements modifies electronic structures HE-LnTiO2N, thus enhancing efficiency. Consequently, photocatalytic hydrogen evolution activity achieved on two times representative SmTiO2N under visible light irradiation. This study highlights efficacy great potential design optimizing materials enhanced energy

Language: Английский

Citations

0
Synthesis of Z-scheme Ag4V2O7/Ag3VO4/GO nanocomposites for photocatalytic degradation of DDT under visible light DOI Creative Commons
Giang H. Le,

Duong A. Thanh,

Trang T. T. Pham

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(9), P. 7078 - 7089

Published: Jan. 1, 2025

The direct Z-scheme Ag4V2O7/Ag3VO4/GO (AVGZ) nanostructure was successfully synthesized using a hydrothermal method with microwave-assisted techniques. obtained AVGZ catalyst characterized by XRD, TEM, EDX, UV-Vis, PL, and XPS methods. characterization results showed that under controlled pH conditions, the orderly stacking of vanadium oxide tetrahedron formed Ag4V2O7 nanoparticles (NPs) on surface Ag3VO4 nanorods (with diameter 50-200 nm). Interestingly, exhibited absorbance in visible light region at 470-550 nm wavelengths. photocatalytic performance evaluated degradation dichloro-diphenyl-trichloroethane (DDT) LED irradiation. Compared to Ag3VO4/Ag4V2O7 material, much higher activity DDT same reaction conditions. optimal conditions were determined be concentration 0.5 g L-1, 6.0, time 4 hours, achieving efficiency 95.46%, according analysis response methodology (RSM) based central composite design (CCD) method. compared Ag3VO4/GO (89.4%) (82.1%), respectively. Scavenging experiments conducted study mechanism spin trapping technique (EPR). indicated ·OH ·O2 - radicals primary oxidizing agents process catalyst. formation heterojunction addition GO accelerated electron-hole pair separation, enhancing durability photocatalysts. Furthermore, photocatalyst also proposed, demonstrating its potential application for light.

Language: Английский

Citations

0
CuMoRuFeW high entropy alloy surfaced nanorods: superior electrochemical CO2 reduction to ethylene DOI

Jundi Qin,

Dan Hu,

Dong Xiang

et al.

Chinese Journal of Structural Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 100571 - 100571

Published: March 1, 2025

Language: Английский

Citations

0
Concurrent Photocatalytic CO2 Reduction and 1‐Phenylethanol Oxidation Regulated by Chloride Ion‐Capped CdS@ZnxCd1‐xS@ZnS QDs DOI Open Access

Huakang Yang,

Zining Zhang, Yudong Guo

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Abstract Solar‐driven photocatalytic CO 2 reduction coupled with the oxidation of organic compounds to value‐added chemicals is a promising strategy, which can utilize both photogenerated electrons and holes. Here, gradient alloyed CdS@Zn x Cd 1‐x S@ZnS quantum dots (quasi‐Type II band structure) capped Cl − ligands demonstrate great potential in simultaneous conversion 1‐phenylethanol into syngas pinacol. The passivation maximizes exposure surface‐active sites improves their electronic structure, providing prerequisite for efficient execution redox reactions. More importantly, p–π conjugation between chloride‐ion benzene ring provides bridge ultrafast transfer holes, greatly promotes activation Cα─H bond release mass reactive free hydrogen. This process effectively lowers thermodynamic energy barrier reduction, even as excessively high kinetic barriers arising from accumulation excess protons also enable them self‐couple, leading generation (CO ≈ 75 mmol g −1 h ; selectivity 69.86%). work insights future artificial photosynthesis achieve activity cost‐effective storable renewable resources co‐production substances through synergistic oxidation.

Language: Английский

Citations

0