Aluminum sheet-induced porous zinc oxide nanosheets decorated with silver nanoparticles for ultrasensitive SERS sensing of crystal violet

Li, Xiangqing; Chen, Xuejuan; Wang, Qiuli; Qin, Lixia; Liu, Xiaoxia; Kang, Shi‐Zhao; Zhang, Taiyang

doi:10.1039/d1ma01181b

Cited by 5 publications

(3 citation statements)

References 40 publications

(40 reference statements)

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“…Figure e represents the high-resolution core-level XPS spectrum for O 1s of ZC-0.1 NCs. The characteristic peak observed at about 530.49 eV corresponds to the lattice oxygen of ZnO, while the peaks at 532.10 and 533.46 eV denote the presence of elemental oxygen-originated chemisorbed water and C–OH moieties, respectively . Subsequently, Figure f demonstrates the high-resolution core-level C 1s spectrum of ZC-0.1 NCs, revealing the characteristic peak at 285.01 eV due to the sp 3 defect .…”

Section: Resultsmentioning

confidence: 94%

“…The characteristic peak observed at about 530.49 eV corresponds to the lattice oxygen of ZnO, while the peaks at 532.10 and 533.46 eV denote the presence of elemental oxygen-originated chemisorbed water and C−OH moieties, respectively. 51 Subsequently, Figure 2f demonstrates the high-resolution core-level C 1s spectrum of ZC-0.1 NCs, revealing the characteristic peak at 285.01 eV due to the sp 3 defect. 52 In addition, the extra peaks sited at 286.91 and 288.87 eV relate to hydroxyl and carboxyl functional moieties, respectively, from MWCNT-decorated ZnO NRs.…”

Section: Resultsmentioning

confidence: 99%

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ZnO Nanorod/Multiwalled Carbon Nanotube Composites Sensitized with Cu-Based Metal–Organic Frameworks as Photoanodes for Solar-Driven Water Splitting

Koyale,

Kulkarni,

Gunjakar

et al. 2024

ACS Appl. Nano Mater.

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This research investigates the photoelectrochemical (PEC) water splitting capabilities of Cu-based metal−organic framework (MOF)-sensitized one-dimensional (1D) metal oxide nanostructures, specifically zinc oxide (ZnO) nanorod (NR)/ multiwalled carbon nanotube (MWCNT) nanocomposites (ZC NCs). This study involves the synthesis of ZnO NRs as well as ZC NCs with varying content of MWCNTs (from 0.05 to 0.25 wt %) via the sol−gel technique, followed by a comprehensive analysis of their structural, optical, and surface properties. The incorporation of MWCNTs with ZnO revealed the enhanced optical and surface characteristics and high concentration of oxygen vacancies in ZC NCs as evidenced by electron spin resonance (ESR) analysis, contributing to improved PEC performance. Thereafter, binder-free thin films of the synthesized materials were deposited using the doctor-blade technique, and then, PEC water splitting performance was assessed through various electrochemical techniques. Herein, the PEC performance of ZC-0.1 NCs (with 0.1 wt % MWCNTs) was 4.5 times superior to that of bare ZnO NRs. Subsequently, the optimized ZC-0.1 NCs were further sensitized with CH 3 −Cu-BTC MOFs, forming ternary ZC-0.1/CH 3 −Cu-BTC NCs. For these ternary NCs, an impressive current density was observed (2.57 mA/cm 2 ), nearly 9 times greater than that of pristine ZnO NRs (1.23 V) vs the reversible hydrogen electrode (RHE) and almost double that of ZC-0.1 NCs. Furthermore, the designed photoanode is stable over time, which was predicted and forecasted through the time series analysis (TSA) model. The higher PEC performance for ternary NCs was justified through surface topography, morphological, and contact angle studies to analyze the surface nature and its hydrophilicity. Hence, the present work demonstrates the systematic roadmap for a PEC water splitting study using valuable insights for the design and optimization of nanostructured metal oxides, photoactive organic moieties, and their composites.

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Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

ZnO Nanorod/Multiwalled Carbon Nanotube Composites Sensitized with Cu-Based Metal–Organic Frameworks as Photoanodes for Solar-Driven Water Splitting

Koyale,

Kulkarni,

Gunjakar

et al. 2024

ACS Appl. Nano Mater.

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“…Furthermore, the UV-absorbance peaks are shown for Al-W nanosheets in Fig. 2E, and the spectra shows an intense peak at about 270 nm (inset), indicating the presence of Al 29,30 and a small hump at 300 nm, showing the presence of W in bimetallic nanosheets. 31 Some controlled experiments were also performed for pure Al and W nanosheets, with W and Al with different 1 : 1 of moles in DEM.…”

Section: Characterization Of the Bimetallic Nanosheetsmentioning

confidence: 95%

“Synergistic effect” based novel and ultrasensitive approach for the detection of serotonin using DEM-modulated bimetallic nanosheets

Dabur

Sharma

2023

J. Mater. Chem. B

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Novel molecularly imprinted nanogel modified microfluidic paper-based SERS substrate for simultaneous detection of bisphenol A and bisphenol S traces in plastics

Sharipov,

Ju,

Azizov

et al. 2024

Journal of Hazardous Materials

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Aluminum sheet-induced porous zinc oxide nanosheets decorated with silver nanoparticles for ultrasensitive SERS sensing of crystal violet

Abstract: In this work, the porous zinc oxide (ZnO) nanosheets induced by Al sheet were fabricated (Al/ZnO) via simple hydrothermal method for the first time. Subsequently, various sizes of silver nanoparticles...

Cited by 5 publications

References 40 publications

ZnO Nanorod/Multiwalled Carbon Nanotube Composites Sensitized with Cu-Based Metal–Organic Frameworks as Photoanodes for Solar-Driven Water Splitting

ZnO Nanorod/Multiwalled Carbon Nanotube Composites Sensitized with Cu-Based Metal–Organic Frameworks as Photoanodes for Solar-Driven Water Splitting

“Synergistic effect” based novel and ultrasensitive approach for the detection of serotonin using DEM-modulated bimetallic nanosheets

Novel molecularly imprinted nanogel modified microfluidic paper-based SERS substrate for simultaneous detection of bisphenol A and bisphenol S traces in plastics

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