High spin Fe³⁺-related bonding strength and electron transfer for sensitive and stable SERS detection

Abstract

The intrinsic electronic states of transition metal-containing SERS substrates, especially the effect of spin state on the detection sensitivity still remains unknown. Herein, we propose a simple co-precipitation approach to...

Recent progress in SERS monitoring of photocatalytic reactions

“…[53][54][55]69 In addition to semiconductors, other materials with highly tunable structural properties, such as MOFs and carbonaceous nanomaterials, have also been employed as SERS substrates. [56][57][58][59][60] For example, we extended the concept of enhanced light-matter interaction to enhance SERS sensitivity in chiral carbonaceous nanotubes by leveraging birefringence induced by the helical structure. 59 Furthermore, we demonstrated that FeNiTi-MIL-101, with an increased amount of high-spin Fe 3+ , exhibited higher SERS sensitivity compared to Fe-MIL-101, owing to the enhanced charge transfer efficiency.…”

“…59 Furthermore, we demonstrated that FeNiTi-MIL-101, with an increased amount of high-spin Fe 3+ , exhibited higher SERS sensitivity compared to Fe-MIL-101, owing to the enhanced charge transfer efficiency. 60 In addition to single component materials, various multicomponent materials, including SnO 2 -NiO x /Cu, Mo-doped Ta 2 O 5 , metal@MOF and metal/graphene, have been developed as SERS substrates. [61][62][63][64][65] We made a breakthrough for the detection of nonchemisorbing volatile organic compounds (VOC) such as toluene through constructing a core-shell structured ZnO@ZIF-8.…”

“…Following this, we will explore various aspects of the photocatalytic process that can be investigated using in situ and/or real-time SERS monitoring. 56 CE B10 6 UV/ozone-oxidized graphene 57 CE B10 4 Reduced graphene oxide nanosheets 58 PICT B10 3 Chiral carbonaceous nanotubes 59 Laser-driven birefringence 3.0 Â 10 3 MIL-101(FeNiTi) 60 PICT 6.1 Â 10 This journal is © The Royal Society of Chemistry 2024…”

Modulating the metal center in MIL-101 for the piezoelectric catalytic synthesis of hydrogen peroxide

“…Consequently, MIL-101(Fe) is more likely to accept electrons under pressure, while MIL-101(Cr) is more likely to donate electrons for H 2 O 2 synthesis. 21,22…”

“…Consequently, MIL-101(Fe) is more likely to accept electrons under pressure, while MIL-101(Cr) is more likely to donate electrons for H 2 O 2 synthesis. 21,22 MIL-101(Cr) exhibits a phase-voltage hysteresis loop with a 1801 change under a 5 V direct current bias field (blue line in Fig. 2d), displaying a distinct hysteresis with local polarization switching behavior.…”