Facile synthesis of monodisperse functional magnetic dialdehyde starch nano-composite and used for highly effective recovery of Hg(II)

Wang, Yang; Zhang, Yun; Hou, Chen; Qi, Zhigang; He, Ximin; Li, Yanfeng

doi:10.1016/j.chemosphere.2015.06.019

Cited by 38 publications

(7 citation statements)

References 42 publications

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“…When pH was 6−7, AT‐MDAS had the strongest adsorption capacity for Hg 2+ . At the temperature of 289 K, 0.01 g, 30 mg/L AT‐MDAS adsorbed Hg 2+ at a maximum of 318.87 mg/g, and the removal ability of Hg 2+ could reach more than 90% (Wang et al., 2015). Chemical modification of SNPs to increase the charge on their surface can enhance the interaction between SNPs and metals.…”

Section: Applications Of Starch‐based Nanoparticlesmentioning

confidence: 99%

Starch‐based nanoparticles: Stimuli responsiveness, toxicity, and interactions with food components

Wang

et al. 2020

Comp Rev Food Sci Food Safe

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In recent years, starch‐based nanoparticles have attracted great interest due to their small size, good biocompatibility, and environmental friendliness, as well as their potential applications in foods, drug delivery carriers, and biodegradable edible films. Compared with nonstarch polysaccharides, starch can be enzymatically hydrolyzed into glucose in vivo, so it can be used as an enzyme‐responsive carrier. The recent research progress of starch‐based nanoparticles, including starch nanoparticles, starch nanospheres, starch micelles, starch vesicles, starch nanogels, and starch nanofibers, are reviewed in this paper. The main focus is on their responsiveness, digestibility, toxicity, interactions with other components, and applications. Starch‐based nanoparticles are nontoxic and responsive to pH, temperature, light, and other stimuli. It can interact with proteins, antioxidants, and lipids through electrostatic interactions and hydrogen bonding interactions. Starch‐based nanoparticles have a wide range of applications, including enhancing the mechanical properties of films and gels, stabilizing emulsions, as a fluorescent indicator, a catalyst, and a nanocarrier to control the release of active ingredients and drugs.

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Section: Applications Of Starch‐based Nanoparticlesmentioning

confidence: 99%

Starch‐based nanoparticles: Stimuli responsiveness, toxicity, and interactions with food components

Wang

et al. 2020

Comp Rev Food Sci Food Safe

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“…Now there are some reports on the preparation of amine-functionalized mesoporous magnetite 27,40,46,48,[53][54][55][56] The nitrogen adsorption and desorption isotherms of composites are shown in Figure 5(B). and 36.599 m 2 ·g -1 , respectively (see Table S1.…”

Section: Synthesis and Characterization Of Fe 3 O 4 -Hbpa Adsorbentmentioning

confidence: 98%

Facile crosslinking synthesis of hyperbranch-substrate nanonetwork magnetite nanocomposite for the fast and highly efficient removal of lead ions and anionic dyes from aqueous solutions

et al. 2016

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The aim of the present work was to investigate the effect of surface functional group density on the adsorption behaviors of functionalized mesoporous Fe 3 O 4 . Amino modified mesoporous Fe 3 O 4 (Fe 3 O 4 -NH 2 ) nanoparticles were firstly prepared through a classical solvothermal method, then a novel three-dimensional hyperbranch structured nanocomposite (Fe 3 O 4 -HBPA) was synthesized though amino terminated hyperbranched polymer (HBPA) modification without any toxic cross-linking agent. The resulting functionalized mesoporous Fe 3 O 4 were characterized by means of TEM, SEM, FTIR, XRD, VSM, TGA and Zeta potential. Adsorptive removal of Pb 2+ and MO in respective single-compoent and binary systems was studied. In heavy metal ion (Pb 2+ , Hg 2+ , Cd 2+ , Cu 2+ etc.) and dye (MO, MGO, MBH, RB and CV), Fe 3 O 4 -HBPA showed higher efficiency removal of Pb 2+ and MO than Fe 3 O 4 -NH 2 . The adsorption of Pb 2+ and MO on Fe 3 O 4 -HBPA was pH dependent with uptake dropping in acidic solution. The Fe 3 O 4 -HBPA adsorbent showed quick adsorption rate, high adsorption capacity, high selectivity for cationic adsorbates. The maximum adsorption capacity was as high as 285.714 mg·g -1 for Pb 2+ and 146.565 mg·g -1 for MO, respectively. The fitness of Langmuir adsorption model and pseudo second-order kinetics for describing the adsorption isotherm and kinetics of Fe 3 O 4 -HBPA for Pb 2+ and MO dye was examined, respectively.

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“…0.25 g of DAS was added to 30 ml of the above MNPs-NH 2 suspension (containing 0.25 g MNPs-NH 2 ) and sonicated the suspension for 30 min with N 2 protection. The reaction temperature was risen to 90ºC for 2 h to obtain MNPs-NH 2 dialdehyde starch nanocomposite (MDAS) [30]. Then 0.28 g of Arg in 15 ml deionized water was added to the system and kept in 60ºC for 2 h. The resulting product, L-arginine amino acid functional magnetic dialdehyde starch nanocomposite (Arg-MDAS), was rinsed with deionizedwater and ethanol completely and dried in a vacuum oven at 60°C for 24 h.…”

Section: Modi Cation Of Mnps-nh 2 By Das and Argmentioning

confidence: 99%

Multiparameter optimization of magnetite solid-phase microextraction for preconcentration of diclofenac and determination by UV–Vis Spectrophotometry

et al. 2021

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This research, aimed to synthesis and functionalize of Fe 3 O 4 magnetic nanoparticles (MNPs) using dialdehyde starch and modifying with arginine amino acid. The resulting MNPs were characterized by Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscope (SEM) and Vibrating sample magnetometer (VSM). Synthesized MNPs were developed for preconcentration and determination of diclofenac in biological samples by UV-Vis Spectrophotometry. A Plackett-Burman experimental design was used to evaluate the in uence of effective parameters. Signi cant parameters were further optimized by Central Composite Design (CCD). Sample volume, pH and salting effect had a main effect on extraction of diclofenac by the proposed method. Under the optimized conditions, the detection limit (3S b , n = 7) was found to be 0.039 µg ml − 1 .The calibration curve showed dynamic linear 0.05-10 µg ml − 1 with correlation coe cients (R 2 ) of 0.987. The enrichment factor was found to be 148. The proposed method showed good results for preconcentration and determination of diclofenac in serum and pharmaceutical samples.

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Facile synthesis of monodisperse functional magnetic dialdehyde starch nano-composite and used for highly effective recovery of Hg(II)

Cited by 38 publications

References 42 publications

Starch‐based nanoparticles: Stimuli responsiveness, toxicity, and interactions with food components

Starch‐based nanoparticles: Stimuli responsiveness, toxicity, and interactions with food components

Facile crosslinking synthesis of hyperbranch-substrate nanonetwork magnetite nanocomposite for the fast and highly efficient removal of lead ions and anionic dyes from aqueous solutions

Multiparameter optimization of magnetite solid-phase microextraction for preconcentration of diclofenac and determination by UV–Vis Spectrophotometry

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