Interaction via in situ binding of CdS nanorods onto gelatin

Tang, Shunxue; Li, Youqun

doi:10.1016/j.jcis.2011.04.040

Cited by 9 publications

(5 citation statements)

References 25 publications

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“…22 For pure CdS QDs, the broad and weak band around 664 cm −1 and the peaks between 1050 and 1660 cm −1 can be attributed to the Cd−S bond, with the exception of the band around 1630 cm −1 , which is the O−H bending vibration. 44,45 The peak at 1390 cm −1 can be attributed to the C−S band in the capping agent thioglycollic acid. 42 In the case of the CdS QDs/g-C 3 N 4 composite, the bands for both g-C 3 N 4 and CdS QDs appear, corroborating the formation of a composite photocatalysts.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Efficient Visible Light Photocatalytic Hydrogen Evolution of Polymeric g-C₃N₄ Coupled with CdS Quantum Dots

et al. 2012

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Novel CdS quantum dot (QD)-coupled graphitic carbon nitride (g-C 3 N 4 ) photocatalysts were synthesized via a chemical impregnation method and characterized by Xray diffraction, transmission electron microscopy, ultraviolet− visible diffuse reflection spectroscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and photoluminescence spectroscopy. The effect of CdS content on the rate of visible light photocatalytic hydrogen evolution was investigated for different CdS loadings using platinum as a cocatalyst in methanol aqueous solutions. The synergistic effect of g-C 3 N 4 and CdS QDs leads to efficient separation of the photogenerated charge carriers and, consequently, enhances the visible light photocatalytic H 2 production activity of the materials. The optimal CdS QD content is determined to be 30 wt %, and the corresponding H 2 evolution rate was 17.27 μmol•h −1 under visible light irradiation, ∼9 times that of pure g-C 3 N 4 . A possible photocatalytic mechanism of the CdS/g-C 3 N 4 composite is proposed and corroborated by photoluminescence spectroscopy and photoelectrochemical curves.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Efficient Visible Light Photocatalytic Hydrogen Evolution of Polymeric g-C₃N₄ Coupled with CdS Quantum Dots

et al. 2012

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“…58 As shown in Figure 4b, the FT-IR characteristic absorption peaks of gelatin are 1654 cm −1 (C O stretching vibrations for amide I), 1534 cm −1 (N−H bending vibrations for amide II), and 1239 cm −1 (C−N stretching vibrations for amide III). 59 In the FT-IR spectrum of the ZnS QDs/gelatin nanocomposite, the amide I peak shifted to 1648 cm −1 , while the amide II peak shifted to 1535 cm −1 . Also, in the FT-IR spectrum of the Mn-doped ZnS QDs/ gelatin, the amide I peak shifted to 1645 cm −1 and the amide II peak shifted to 1543 cm −1 .…”

Section: ■ Results and Discussionmentioning

confidence: 95%

“…Kang et al synthesized water-soluble AgInS2/ZnS core/shell QDs using gelatin and thioglycolic acid as the capping agent, and their FT-IR analysis indicated that surfaces of QDs were gathered with hydroxyl-, carboxyl-, and amino- functional groups from gelatin . As shown in Figure b, the FT-IR characteristic absorption peaks of gelatin are 1654 cm –1 (CO stretching vibrations for amide I), 1534 cm –1 (N–H bending vibrations for amide II), and 1239 cm –1 (C–N stretching vibrations for amide III) . In the FT-IR spectrum of the ZnS QDs/gelatin nanocomposite, the amide I peak shifted to 1648 cm –1 , while the amide II peak shifted to 1535 cm –1 .…”

Section: Resultsmentioning

confidence: 99%

ZnS Quantum Dots/Gelatin Nanocomposites with a Thermo-Responsive Sol–Gel Transition Property Produced by a Facile and Green One-Pot Method

Guo

Cao

Zhang

et al. 2020

ACS Sustainable Chem. Eng.

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Quantum dots (QDs) have drawn great attention for their attractive applications ranging from light-emitting diodes to fluorescence bioimaging. In this study, for the first time, ZnS QDs/gelatin nanocomposites with a thermo-responsive sol–gel transition property were directly prepared using a facile and green one-pot method. The method shows advantages such as the environmentally friendly strategy, mild conditions, no need for organic solvents, and simple post-treatment. In this method, gelatin not only serves as the green capping agent for the preparation of QDs but also acts as the main component in the QDs/gelatin nanocomposites. Moreover, gelatin confers its thermo-responsive sol–gel transition property to QDs/gelatin nanocomposites. The sol–gel transition property can be used to produce QDs/gelatin gel beads. Also, the release of QDs from the QDs/gelatin beads can be triggered by the thermally responsive sol–gel transition. In addition, the resulting nanocomposites can be utilized for fluorescence bioimaging. Thus, the QDs/gelatin nanocomposites with the thermo-responsive sol–gel transition property have potential uses in the controlled release, fluorescence labeling, and imaging.

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“…The prominent set of peaks was observed at more positive values for the potential than the reversible Nernst potential for bulk deposition, i.e., −0.65 V vs SCE [ 43 , 44 , 45 , 46 , 47 , 48 , 49 ]. This direct detection of Cd 2+ via the UPD approach has also been demonstrated previously using peptides as the matrix material [ 50 , 51 ].…”

Section: Resultsmentioning

confidence: 99%

Bio-Nanohybrid Gelatin/Quantum Dots for Cellular Imaging and Biosensing Applications

Samal

Soenen

Puppi

et al. 2022

IJMS

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The bio-nanohybrid gelatin protein/cadmium sulfide (Gel/CdS) quantum dots (QDs) have been designed via a facile one-pot strategy. The amino acids group of gelatin chelate Cd2+ and grow CdS QDs without any agglomeration. The 1H NMR spectra indicate that during the above process there are no alterations of the gelatin protein structure conformation and chemical functionalities. The prepared Gel/CdS QDs were characterized and their potential as a system for cellular imaging and the electrochemical sensor for hydrogen peroxide (H2O2) detection applications were investigated. The obtained results demonstrate that the developed Gel/CdS QDs system could offer a simple and convenient operating strategy both for the class of contrast agents for cell labeling and electrochemical sensors purposes.

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Interaction via in situ binding of CdS nanorods onto gelatin

Cited by 9 publications

References 25 publications

Synthesis and Efficient Visible Light Photocatalytic Hydrogen Evolution of Polymeric g-C₃N₄ Coupled with CdS Quantum Dots

Synthesis and Efficient Visible Light Photocatalytic Hydrogen Evolution of Polymeric g-C₃N₄ Coupled with CdS Quantum Dots

ZnS Quantum Dots/Gelatin Nanocomposites with a Thermo-Responsive Sol–Gel Transition Property Produced by a Facile and Green One-Pot Method

Bio-Nanohybrid Gelatin/Quantum Dots for Cellular Imaging and Biosensing Applications

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Interaction via in situ binding of CdS nanorods onto gelatin

Cited by 9 publications

References 25 publications

Synthesis and Efficient Visible Light Photocatalytic Hydrogen Evolution of Polymeric g-C3N4 Coupled with CdS Quantum Dots

Synthesis and Efficient Visible Light Photocatalytic Hydrogen Evolution of Polymeric g-C3N4 Coupled with CdS Quantum Dots

ZnS Quantum Dots/Gelatin Nanocomposites with a Thermo-Responsive Sol–Gel Transition Property Produced by a Facile and Green One-Pot Method

Bio-Nanohybrid Gelatin/Quantum Dots for Cellular Imaging and Biosensing Applications

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Product

Resources

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Synthesis and Efficient Visible Light Photocatalytic Hydrogen Evolution of Polymeric g-C₃N₄ Coupled with CdS Quantum Dots

Synthesis and Efficient Visible Light Photocatalytic Hydrogen Evolution of Polymeric g-C₃N₄ Coupled with CdS Quantum Dots