MnO2-decorated biochar composites of coconut shell and rice husk: An efficient lithium ions adsorption-desorption performance in aqueous media

Kamran, Urooj; Park, Soo‐Jin

doi:10.1016/j.chemosphere.2020.127500

Cited by 75 publications

(28 citation statements)

References 62 publications

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“…The deconvolution of O 1s spectra (Fig. 1d) revealed the presence of -OH at 531.81 eV for BC-LDH, H-O-C at 532.81 eV for BC (Swaidan et al, 2021), and another peak at 530.96 eV for BC was C = O group (Kamran and Park, 2020). The main elements of Mg and Al in BC-LDH were also identi ed.…”

Section: Properties Of Bc-ldhmentioning

confidence: 88%

Mechanistic Insight of Biochar-layered Double Hydroxide Composite for Efficient Removal of Aqueous Pb(II) and Cu(II)

Chen

et al. 2021

Preprint

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To explore the heavy metal adsorption mechanisms by biochar-based materials, MgAl-layered double hydroxide (MgAl-LDH) was loaded on a commercial coconut shell biochar (BC) to obtain the composite (BC-LDH) for adsorptive decontamination of Pb(II) and Cu(II) in water. The removal capacities of BC-LDH (294 and 38.6 mg/g) was higher than BC (13.3 and 11.4 mg/g) and LDH (126 and 22.7 mg/g) for aqueous Pb(II) and Cu(II). The pseudo-second-order equation and the Langmuir model could better illustrate the adsorption process, respectively. The interaction mechanisms between BC-LDH and heavy metals were classified as mineral precipitation (Qpre), cation exchange and isomorphic replacement (Qexc), electrostatic attraction (Qele), and surface complexation (Qcom) according to the characterization results. The quantitative analysis indicated that the contributions of the above mechanisms of BC-LDH for Pb(II) and Cu(II) followed the order of Qpre > Qele > Qexc and Qpre > Qexc > Qele, respectively. Compared with BC, the Qpre increased and Qele decreased significantly, certified the combination of BC and LDH provided a kind of viable composite in heavy metal wastewater treatment.

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Section: Properties Of Bc-ldhmentioning

confidence: 88%

Mechanistic Insight of Biochar-layered Double Hydroxide Composite for Efficient Removal of Aqueous Pb(II) and Cu(II)

Chen

et al. 2021

Preprint

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“…They also determine the quality and flavor of agricultural products. Moreover, sugar-related materials, such as cellulose, can be developed into eco-friendly and economically favorable biosorbents and biocomposites for removing some toxic substances, such as acid dye ( Kamran et al, 2022 ), CO 2 ( Kamran and Park, 2021a , b ), Li + ( Kamran and Park, 2020 , 2022 ), and bacteria ( Kamran et al, 2019a ). Therefore, quantitative analysis of sugar in plants and agricultural products is very important.…”

Section: Introductionmentioning

confidence: 99%

Enzyme-Free Electrochemical Sensors for in situ Quantification of Reducing Sugars Based on Carboxylated Graphene–Carboxylated Multiwalled Carbon Nanotubes–Gold Nanoparticle–Modified Electrode

Liu

Wang

Luo³

et al. 2022

Front. Plant Sci.

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The reducing sugars of plants, including glucose, fructose, arabinose, galactose, xylose, and mannose, are not only the energy source of plants, but also have the messenger function of hormones in signal transduction. Moreover, they also determine the quality and flavor of agricultural products. Therefore, the in situ quantification of reducing sugars in plants or agriculture products is very important in precision agriculture. However, the upper detection limit of the currently developed sugar sensor is not high enough for in situ detection. In this study, an enzyme-free electrochemical sensor for in situ detection of reducing sugars was developed. Three-dimensional composite materials based on carboxylated graphene–carboxylated multi-walled carbon nanotubes attaching with gold nanoparticles (COOH-GR–COOH-MWNT–AuNPs) were formed and applied for the non-enzymatic determination of glucose, fructose, arabinose, mannose, xylose, and galactose. It was demonstrated that the COOH-GR–COOH-MWNT–AuNP-modified electrode exhibited a good catalysis behavior to these reducing sugars due to the synergistic effect of the COOH-GR, COOH-MWNT, and AuNPs. The detection range of the sensor for glucose, fructose, arabinose, mannose, xylose, and galactose is 5–80, 2–20, 2–50, 5–60, 2–40, and 5–40 mM, respectively. To our knowledge, the upper detection limit of our enzyme-free sugar sensor is the highest compared to previous studies, which is more suitable for in situ detection of sugars in agricultural products and plants. In addition, this sensor is simple and portable, with good reproducibility and accuracy; it will have broad practical application value in precision agriculture.

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“…Moreover, the problem of microbial infections are serious in many parts of the world and most of the microbes have become tolerant to antibiotics [25,27,28] . Therefore, the present scenario demands new alternative and safe antimicrobial agents against human microbial pathogens.…”

Section: Introductionmentioning

confidence: 99%

Biogenic Fabrication of Silver Nanoparticles: A Potent and Ideal Candidate for Wastewater Treatment and Water Disinfection

2022

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This study reports a facile, cost‐effective, environment‐friendly, green, and rapid fabrication of spherical silver nanoparticles (Ag NPs) of average grain size of 25 nm within 30 minutes employing the leaf extracts of the Calamus tenuis plant. Characterization was accomplished for determining the morphology, size, crystallinity, and for the identification of functional moieties responsible for the reduction and stabilization. The phytoconstituents present in the leaf extracts of Calamus tenuis played the dual role of reducing as well as stabilizing agents eliminating the need for the addition of any external reducing and capping agents.

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MnO2-decorated biochar composites of coconut shell and rice husk: An efficient lithium ions adsorption-desorption performance in aqueous media

Cited by 75 publications

References 62 publications

Mechanistic Insight of Biochar-layered Double Hydroxide Composite for Efficient Removal of Aqueous Pb(II) and Cu(II)

Mechanistic Insight of Biochar-layered Double Hydroxide Composite for Efficient Removal of Aqueous Pb(II) and Cu(II)

Enzyme-Free Electrochemical Sensors for in situ Quantification of Reducing Sugars Based on Carboxylated Graphene–Carboxylated Multiwalled Carbon Nanotubes–Gold Nanoparticle–Modified Electrode

Biogenic Fabrication of Silver Nanoparticles: A Potent and Ideal Candidate for Wastewater Treatment and Water Disinfection

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