A “directed precursor self-assembly” strategy for the facile synthesis of heteropoly blues: crystal structures, formation mechanism and electron distribution

Wang, Yuchao; Li, Fengyan; Jiang, Ning; Liu, Xizheng; Xu, Lin

doi:10.1039/c9dt02789k

Cited by 9 publications

(3 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They then studied their assembly mechanism using electrospray ionization mass spectrometry (ESI‐MS). Interestingly they have also observed some of the Mo v based HPA blues are presenting magnetic behavior due to their adjustable electron distribution [106] …”

Section: Functionalizing/immobilizing Hpamentioning

confidence: 94%

See 1 more Smart Citation

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Ilbeygi,

Jaafar

2024

The Chemical Record

View full text Add to dashboard Cite

Functionalized nanoporous heteropoly acids (HPAs) have garnered significant attention in recent years due to their enhanced surface area and porosity, as well as their potential for low‐cost regeneration compared to bulk materials. This review aims to provide an overview of the recent advancements in the synthesis and applications of functionalized HPAs. We begin by introducing the fundamental properties of HPAs and their unique structure, followed by a comprehensive overview of the various approaches employed for the synthesis of functionalized HPAs, including salts, anchoring onto supports, and implementing mesoporous silica sieves. The potential applications of functionalized HPAs in various fields are also discussed, highlighting their boosted performance in a wide range of applications. Finally, we address the current challenges and present future prospects in the development of functionalized HPAs, particularly in the context of mesoporous HPAs. This review aims to provide a comprehensive summary of the recent progress in the field, highlighting the significant advancements made in the synthesis and applications of functionalized HPAs.

show abstract

Section: Functionalizing/immobilizing Hpamentioning

confidence: 94%

“…Interestingly they have also observed some of the Mo v based HPA blues are presenting magnetic behavior due to their adjustable electron distribution. [106]…”

Section: Hpa Salts/bluementioning

confidence: 99%

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Ilbeygi,

Jaafar

2024

The Chemical Record

View full text Add to dashboard Cite

show abstract

“…Wang et al employed the POMs cluster (SiW 12 ) to covalently combine with the KOH-modified g -C 3 N 4 via the phosphate-bridged strategy, exhibiting excellent photocatalytic nitrogen fixation in the water . As a significant branch in the field of POMs, r-POMs not only provide abundant electrons for photocatalytic reactions but also broaden the absorption spectrum from ultraviolet to visible light. − However, r-POMs nanoparticles tend to agglomerate, restricting the further improvement of efficiency. , It may be resolved by combining the protons of the material’s surface by electrostatic interaction due to the large masses of negative charges on the surface of r-POMs . We consider that the construction of the protonation-modified surface of N-vacancy g -C 3 N 4 (HV-C 3 N 4 ) by a surface modification strategy can achieve the high dispersion of r-POMs.…”

Section: Introductionmentioning

confidence: 99%

Heteropoly Blue/Protonation-Defective Graphitic Carbon Nitride Heterojunction for the Photo-Driven Nitrogen Reduction Reaction

Wang

Xue

et al. 2021

Inorg. Chem.

View full text Add to dashboard Cite

The establishment of a heterojunction is a crucial strategy to design highly effective nonnoble metal nanocatalysts for the photocatalytic nitrogen reduction reaction (PNRR). Heteropoly blues (r-POMs) can act as electron-transfer mediators in PNRR, but its agglomeration limits the further promotion of PNRR productivity. In this work, we construct a protonation-modified surface of N-vacancy g-C 3 N 4 (HV-C 3 N 4 ), achieving the high dispersion of r-POMs via the surface modification strategy. Enlightened by the synergy effect of the nitrogenase, r-POMs were anchored onto HV-C 3 N 4 nanosheets through an electrostatic self-assembly method for preparing r-POMs-based protonation-defective graphitic carbonitride (HV-C 3 N 4 /r-POMs). As an electron donor, r-PW 12 can match with the energy level of HV-C 3 N 4 to build a heterojunction. The electron redistribution of the heterojunction facilitates the optimization of the electronic structure for enhancing the performance of PNRR. HV-C 3 N 4 /r-PW 12 exhibits the best PNRR efficiency of 171.4 μmol L −1 h −1 , which is boosted by 94.39% (HV-C 3 N 4 ) and 86.98% (r-PW 12 ). The isotope 15 NH 4 + experiment proves that ammonia is derived from N 2 , not carbon nitride. This study opens up a crucial view to achieve the high dispersion of r-POMs nanoparticles and develop high-efficiency nonnoble metal photocatalysts for the PNRR.

show abstract

Highly efficient catalytic reduction of organic dyes, Cr (VI) and 4‐nitrophenol, and photocatalytic degradation of MB by an inorganic–organic hybrid polyoxometalate

Liu,

Kong,

Fei

2024

Applied Organom Chemis

View full text Add to dashboard Cite

It is urgent to remove various pollutants from the water environment. Therefore, an inorganic–organic hybrid polyoxometalate (POM) [PMoVI6MoV2VIV8O44{Co(2,2′‐bipy)2(H2O)}4]‐[PMoVI4MoV4VIV8O44{Co(2,2′‐bipy)2(H2O)}2]·4H2O (PMoVCo) was fully characterized by XRD, XPS, FTIR, SEM, BET and zeta potential techniques, and applied for the catalytic reduction of hazardous methylene blue (MB), methyl orange (MO), rhodamine B (RhB), Cr (VI) and 4‐nitrophenol (4‐NP) in aqueous media over NaBH4 under mild condition. The removal ratios were 99.6% (MB, 2.5 min), 97.0% (MO, 3.0 min), 92.5% (RhB, 2.0 min), 89.2% (Cr (VI), 2.0 min) and 89.6% (4‐NP, 2.5 min), respectively. The pseudo‐first‐order rate constants of the reactions were 1.992 min−1 (MB), 0.810 min−1 (MO), 1.768 min−1 (RhB), 1.186 min−1 (Cr (VI)) and 0.934 min−1 (4‐NP), respectively. Additionally, PMoVCo exhibited satisfactory catalytic activity for the photo‐Fenton‐like degradation of MB at neutral pH under visible light irradiation with a degradation rate up to 99.9% in 480 min. The results of the recycling experiment prove that PMoVCo has high catalytic reusability. Moreover, the possible mechanisms of the catalytic reduction and degradation processes were proposed. The catalytic activities of PMoVCo are better than other inorganic–organic hybrid POMs. All the results of this study indicate that PMoVCo has the potential to be a satisfactory catalyst for wastewater remediation via reduction or photocatalytic degradation.

show abstract

A “directed precursor self-assembly” strategy for the facile synthesis of heteropoly blues: crystal structures, formation mechanism and electron distribution

Abstract: A “directed precursor self-assembly” strategy for the facile synthesis of heteropoly blues (HPBs) has been developed, and the formation mechanism is also discussed.

Cited by 9 publications

References 36 publications

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Heteropoly Blue/Protonation-Defective Graphitic Carbon Nitride Heterojunction for the Photo-Driven Nitrogen Reduction Reaction

Highly efficient catalytic reduction of organic dyes, Cr (VI) and 4‐nitrophenol, and photocatalytic degradation of MB by an inorganic–organic hybrid polyoxometalate

Contact Info

Product

Resources

About