Boosting visible light photocatalysis in an Au@TiO2 yolk-in-shell nanohybrid

Hu, Jun; Zhao, Ru-Fang; Li, Haitao; Xu, Zhaoyi; Dai, Han; Gao, Hua; Yu, Hao; Wang, Ziyao; Wang, Yang; Liu, Yanping; Han, Jie

doi:10.1016/j.apcatb.2021.120869

Cited by 48 publications

(14 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2C), which might be attributed to the lesser degree of shell blockage. 26 To further experimentally confirm the simulation results of FDTD, we illuminated yolk-in-shell Au@CdS and yolk-shell Au@CdS for 3 min and tested with an infrared camera. The yolk-in-shell Au@CdS (38.7 1C; Fig.…”

mentioning

confidence: 84%

Photoelectrochemical bioanalysis of microRNA on yolk-in-shell Au@CdS based on the catalytic hairpin assembly-mediated CRISPR-Cas12a system

Zeng

et al. 2022

Chem. Commun.

100

View full text Add to dashboard Cite

show abstract

mentioning

confidence: 84%

Photoelectrochemical bioanalysis of microRNA on yolk-in-shell Au@CdS based on the catalytic hairpin assembly-mediated CRISPR-Cas12a system

Zeng

et al. 2022

Chem. Commun.

100

View full text Add to dashboard Cite

show abstract

“…Some hybrid photocatalysts with a heterostructure, for instance, In 2 S 3 /UiO-66, 7 Ag 3 PO 4 /MIL-53(Fe), 8 and ZnO@In 2 O 3 , 9 are fabricated to impede the recombination of hole−electron pairs. Alternatively, noble metals are employed to combine with semiconductors or MOFs due to their excellent conductivity and strong electron trapping ability, for instance, Ag/AgCl@ZIF-8/g-C 3 N 4 , 10 MoO 3 /Ag/C 3 N 4 , 11 Au@TiO 2 , 12 and Rh-STO/Ni-ZnO/ BVO, 13 which could avoid this problem to some extent. Additionally, the surface plasmon resonance (SPR) feature of noble metals is an insurance to achieve high-efficiency photocatalysis.…”

Section: Introductionmentioning

confidence: 99%

Decorating Upconversion Nanoparticles Mediated by Both Active and Inert Shells on NH₂-MIL-101(Fe) for the Photocatalytic Degradation of Antibiotics and Organic Dyes

Ren

Bai

Huang

et al. 2022

Crystal Growth & Design

View full text Add to dashboard Cite

Photocatalysis is a promising pathway to degrade pollutants in water. Although numerous photocatalysts have been developed to remove organic dyes in water, the degradation of antibiotics is still a perplexing problem due to their excellent stability. The hybrid photocatalyst upconversion nanoparticle (UCNP)/metal–organic framework (MOF) has been developed with the aim to utilize the full solar light. However, the low upconversion efficiency results in an unsatisfactory photocatalytic activity. A novel core–shell–shell UCNP, NaYF4:Yb/Tm@NaYF4:Yb@NaYF4 (Tm@Yb@Y), is synthesized to increase the upconversion efficiency. Both the active and inert shells are introduced in the UCNPs, which not only are favorable to weaken the surface quenching but also are helpful to prompt the energy transfer back. As a result, the UC emission intensity is greatly improved as compared with Tm or Tm@Yb. Then, Tm@Yb@Y is combined with NH2-MIL101(Fe) (NMF) to fabricate the novel photocatalyst Tm@Yb@Y/NMF. It exhibits an excellent photocatalytic activity to degrade rhodamine B (RhB), levofloxacin (OFL), and tetracycline hydrochloride (TC). The contribution of near infrared (NIR) light and inert shell on the whole photocatalysis is considered. The possible photodegradation mechanism is proposed according to the photoelectrochemical measurements, free radical and hole trapping experiments, and pump power dependence of upconversion emission intensities. The outstanding performance of Tm@Yb@Y/NMF should be attributed to the synergistic effect including the wider light absorption range, increased UC emission intensity, and feasible electron–hole separation.

show abstract

“…In additional, the peaks at 157.43 eV and 162.63 eV are attributed to the Bi 0 (metallic Bi) [ 42 ], indicating that the Bi 3+ and metallic Bi are both in Bi 2 O 3 /TiO 2 composites. Ti 2p peaks of Bi 2 O 3 /TiO 2 composites are fitted by two XPS peaks ( Figure 4 c), and the two peaks at 458.19 eV and 463.81 eV are assigned to Ti 2p 3/2 and Ti 2p 1/2 , respectively, showing the existence of Ti 4+ [ 43 ]. The high-resolution XPS O1s of Bi 2 O 3 /TiO 2 composites located at 529.36 eV, 530.04 eV, and 531.71 eV belong to lattice oxygen in Bi-O of Bi 2 O 3 , Ti-O of TiO 2 , and surface absorbed hydroxyl groups, respectively ( Figure 4 d) [ 44 ].…”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Nano-Flower β-Bi2O3/TiO2 Heterojunction as Photocatalyst for Degradation RhB

et al. 2023

View full text Add to dashboard Cite

Photocatalysis is a hopeful technology to solve various environmental problems, but it is still a technical task to produce large-scale photocatalysts in a simple and sustainable way. Here, nano-flower β-Bi2O3/TiO2 composites were prepared via a facile solvothermal method, and the photocatalytic performances of β-Bi2O3/TiO2 composites with different Bi/Ti molar ratios were studied. The nano-flower Bi2O3/TiO2 composites were studied by SEM, XRD, XPS, BET, and PL. The PL result proved that the construction of staggered heterojunction enhanced the separation efficiency of carriers. The degradation RhB was applied to study the photocatalytic performances of prepared materials. The results showed that the degradation efficiency of RhB increased from 61.2% to 99.6% when the molar ratio of Bi/Ti was 2.1%. It is a mesoporous approach to enhance photocatalytic properties by forming heterojunction in Bi2O3/TiO2 composites, which increases the separation efficiency of the generated carriers and improves photocatalytic properties. The photoactivity of the Bi2O3/TiO2 has no evident changes after the fifth recovery, indicating that the Bi2O3/TiO2 composite has distinguished stability.

show abstract

Boosting visible light photocatalysis in an Au@TiO2 yolk-in-shell nanohybrid

Cited by 48 publications

References 61 publications

Photoelectrochemical bioanalysis of microRNA on yolk-in-shell Au@CdS based on the catalytic hairpin assembly-mediated CRISPR-Cas12a system

Photoelectrochemical bioanalysis of microRNA on yolk-in-shell Au@CdS based on the catalytic hairpin assembly-mediated CRISPR-Cas12a system

Decorating Upconversion Nanoparticles Mediated by Both Active and Inert Shells on NH₂-MIL-101(Fe) for the Photocatalytic Degradation of Antibiotics and Organic Dyes

Facile Synthesis of Nano-Flower β-Bi2O3/TiO2 Heterojunction as Photocatalyst for Degradation RhB

Contact Info

Product

Resources

About

Boosting visible light photocatalysis in an Au@TiO2 yolk-in-shell nanohybrid

Cited by 48 publications

References 61 publications

Photoelectrochemical bioanalysis of microRNA on yolk-in-shell Au@CdS based on the catalytic hairpin assembly-mediated CRISPR-Cas12a system

Photoelectrochemical bioanalysis of microRNA on yolk-in-shell Au@CdS based on the catalytic hairpin assembly-mediated CRISPR-Cas12a system

Decorating Upconversion Nanoparticles Mediated by Both Active and Inert Shells on NH2-MIL-101(Fe) for the Photocatalytic Degradation of Antibiotics and Organic Dyes

Facile Synthesis of Nano-Flower β-Bi2O3/TiO2 Heterojunction as Photocatalyst for Degradation RhB

Contact Info

Product

Resources

About

Decorating Upconversion Nanoparticles Mediated by Both Active and Inert Shells on NH₂-MIL-101(Fe) for the Photocatalytic Degradation of Antibiotics and Organic Dyes