Synergetic Sensing Effect of Sodium Carboxymethyl Cellulose and Bismuth on Cadmium Detection by Differential Pulse Anodic Stripping Voltammetry

Ning, Jingheng; Luo, Xin; Wang, Faxiang; Huang, Shouen; Wang, Jianhui; Liu, Dongmin; Liu, Donglin; Chen, Donger; Wei, Jiaqian; Liu, Yongle

doi:10.3390/s19245482

Cited by 24 publications

(10 citation statements)

References 53 publications

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“…The peaks at 1588 and 1407 cm –1 can be attributed to the symmetric −CH stretching vibrations of −CH 2 and −CH 3 alkyl groups in CMC and symmetric −CO stretching vibrations. The peak at 1003 cm –1 is due to −C–O stretching vibrations. − FTIR spectra of exfoliated hBN and bulk hBN (Figure S2) display two significant peaks at 808 and 1386 cm –1 , which can be attributed to the out-of-plane B–N–B and in-plane B–N stretching in hBN, respectively. − In the FTIR spectra of 3D-printed hBN/CMC, the peak for asymmetric −CO stretching was shifted to 1711 cm –1 . Also, the peaks for symmetric −CH stretching vibrations and symmetric −CO stretching vibrations were shifted to 1572 and 1412 cm –1 .…”

Section: Resultsmentioning

confidence: 99%

Energy Harvesting Using High-Strength and Flexible 3D-Printed Cellulose/Hexagonal Boron Nitride Nanosheet Composites

Jayakumar,

Ambekar,

Mahapatra

et al. 2023

ACS Appl. Nano Mater.

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As a natural polymer, cellulose is abundant, low-cost, robust, and biodegradable and can be chemically modified. This work explores the enhancement of mechanical, thermal, and flexoelectric properties of three-dimensional (3D)-printed carboxymethyl cellulose (CMC) due to the addition of mechanically exfoliated hexagonal boron nitride (hBN). hBN was observed to act as a rheology modifier, and CMC reinforced with 2% hBN exhibited the maximum apparent viscosity of 12.24 Pa•s at a shear rate of 100 s −1 . The 0.5% hBN/CMC film exhibited the highest mechanical and thermal stability. A flexoelectric energy harvester was fabricated out of 3D-printed hBN/CMC composites to test the effectiveness of strain-induced charge production. By varying the load resistance and applied pressure, we were able to measure the voltage and current flowing through the device. We found that a load resistance of 180 kΩ connected across a 2% hBN/CMC device resulted in the highest power delivery of 5.5 nW. When mechanical strain is applied, a charge state fluctuation and spontaneous polarization in the hBN/CMC matrix are seen. This phenomenon can be explained based on the flexoelectric energy-harvesting mechanism, supported by density functional theory (DFT) calculations.

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Section: Resultsmentioning

confidence: 99%

Energy Harvesting Using High-Strength and Flexible 3D-Printed Cellulose/Hexagonal Boron Nitride Nanosheet Composites

Jayakumar,

Ambekar,

Mahapatra

et al. 2023

ACS Appl. Nano Mater.

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“…4. For genuine CMC and PVP polymers and caffeic acid, the main vibrational bands were determined and followed by literature [25][26][27][28].…”

Section: Resultsmentioning

confidence: 99%

3D printing by additive manufacture of hydrogel containing caffeic acid

Segundo¹,

Corzo²,

Moraes³

et al. 2021

IJAERS

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In this work, 3D extrusion-based printing head was used to produce 3D geometry of hydrogel containing caffeic acid (CA). The hydrogel was prepared with 10wt.% polyvinylpyrrolidone (PVP) and 3wt.% sodium carboxymethylcellulose (CMC) using deionized water as solvent (PVP-CMC hydrogel), likewise the PVP-CMC hydrogel containing CA was prepared but was added 2wt.% CA (PVP-CA-CMC hydrogel). The rheological properties of the hydrogels were obtained using a modular rheometer with plate-plate geometry. The PVP-CMC hydrogel presented shear-thinning flow behavior and the adding of CA did not affect its rheological behavior. The power-law model described the shear-thinning curves of the hydrogels. Frequency sweep tests demonstrated that the PVP-CMC and PVP-CA-CMC hydrogels presented a physical gelation characteristic of the solid behaviors. The IR spectroscopy chemically characterized the hydrogel, indicating by carbonyl peaks a good intermolecular interaction between the functional groups. Therefore, we demonstrated the printing capacity of the PVP-CMC inks with caffeic acid, which makes it interesting to additive manufacture field. I. is linked to cell biology and materials science [5].Compared with other manufacturing techniques where João de Deus Pereira et al.

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“…FTIR spectra of GG show a peak at 3285 cm À 1 due to the presence of -OH stretching vibration, 2914 cm À 1 is due to CÀ H stretching vibration, 1647 cm À 1 is due to the carbonyl group, and 1015 cm À 1 is due to OÀ H bending vibration. [45] In CMC, peaks at 3306 cm À 1 indicate the OH stretching vibration, and peaks at 2914 cm À 1 , 1647 cm À 1 , and 1379 cm À 1 show the CÀ H stretching vibration, carbonyl group stretching vibration, and CÀ O stretching respectively, [46] whereas peaks at 1016 cm À 1 are due to its glycosidic linkage. In the case of GG/epi/CMC, there is an almost similar adsorption peak with similar intensity.…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

Microwave‐Assisted Synthesis of Guar‐Gum and Carboxymethyl Cellulose‐Based Hydrogel for Efficient Removal of Crystal Violet and Brilliant Green Dyes

et al. 2022

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This study reports the microwave synthesis of Guar gum (GG) and Carboxymethyl cellulose (CMC) based hydrogel covalently crosslinked using epichlorohydrin (epi), aiming to remove hazardous dyes like Crystal Violet (CV) and Brilliant Green (BG). The optimized parameters were the reaction time (40 s), solvent (12 ml), pH (11), the ratio of reactants (GG: CMC, 1 : 2), and crosslinker concentration (0.8 ml) resulting in the highest percentage of swelling (4215 %). The synthesized hydrogel was characterized by different techniques like FTIR, TGA, FESEM/ EDX, and XRD. The adsorption ability of the synthesized hydrogel was assessed for the removal of toxic dyes. Different kinetic and isotherm models were used to evaluate the type of adsorption that occurred on hydrogel materials. The CV and BG were both removed in 96.78 and 94.01 % of the adsorption process, respectively. The pseudo-second-order kinetic model is the best-fitted model for the adsorption of dyes on the synthesized hydrogel. Adsorption was determined to be homogeneous and physical adsorption, and it was revealed through adsorption isotherm studies that the Langmuir model was the best-fitted model. The adsorption process for both dyes is spontaneous, as further confirmed by the negative values of the change in Gibbs free energy from 298 to 318 K. The synthesized hydrogel material was discovered to be a promising adsorbent to remove these toxic dyes from wastewater and can be used as an eco-friendly and sustainable material for wastewater remediation [a

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Synergetic Sensing Effect of Sodium Carboxymethyl Cellulose and Bismuth on Cadmium Detection by Differential Pulse Anodic Stripping Voltammetry

Cited by 24 publications

References 53 publications

Energy Harvesting Using High-Strength and Flexible 3D-Printed Cellulose/Hexagonal Boron Nitride Nanosheet Composites

Energy Harvesting Using High-Strength and Flexible 3D-Printed Cellulose/Hexagonal Boron Nitride Nanosheet Composites

3D printing by additive manufacture of hydrogel containing caffeic acid

Microwave‐Assisted Synthesis of Guar‐Gum and Carboxymethyl Cellulose‐Based Hydrogel for Efficient Removal of Crystal Violet and Brilliant Green Dyes

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