Preparation of hydroxypropyl-cyclodextrin-graphene / Fe3O4 and its adsorption properties for heavy metals

Tahir, Muhammad Usman; Su, Xintai; Zhao, Mengqi; Liao, Yinnian; Wu, Ren‐Jang; Chen, Dejun

doi:10.1016/j.surfin.2019.04.007

Cited by 46 publications

(24 citation statements)

References 26 publications

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“…37 The pore diameter of its the CZC is about 0.1–0.35 μm, and the zeolites are crystallized and sporadically distributed on the surface of the carbonaceous matrix of the honeycomb structure, indicating that the bulk structure of the raw FA was prepared to form a honeycomb structure. 38 …”

Section: Results and Discussionmentioning

confidence: 99%

Preparation of Honeycomb-Structured Activated Carbon–Zeolite Composites from Modified Fly Ash and the Adsorptive Removal of Pb(II)

Zhao

Chen

et al. 2022

ACS Omega

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In this paper, fly ash (FA) was successfully prepared into a honeycomb carbon–zeolite composite (CZC) with good adsorption and used for the removal of Pb(II) by a two-step method. Compared with general FA, the honeycomb structure of the CZC resulted in a ∼6× increase in the specific surface area, and the average pore size increased from 3.4 to 12.7 μm. The maximum adsorption capacity of CZCs for Pb(II) reached 185.68 mg/g in 40 min. The experimental data for the adsorption of Pb(II) by CZC showed that the results were in good agreement with the Langmuir adsorption model. The adsorbent prepared in this study has good application prospects in wastewater treatment and provides a new method for the resource recovery of FA.

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Section: Results and Discussionmentioning

confidence: 99%

Preparation of Honeycomb-Structured Activated Carbon–Zeolite Composites from Modified Fly Ash and the Adsorptive Removal of Pb(II)

Zhao

Chen

et al. 2022

ACS Omega

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“…Heavy metals are chemically stable and nonbiodegradable and thus can be persistently accumulated in the environment. Either long time or high level exposure to toxic heavy metals can induce a series of severe health problems including neurological damage, anemia, bone defect, cancer, 2 and so forth. Therefore, developing efficient techniques to harness heavy metal pollution is urgently needed.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of Cd(II) and Cu(II) Adsorption onto Few-Layered Magnetic Graphene Oxide as an Efficient Adsorbent

Guo

Bulin

et al. 2021

ACS Omega

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Heavy metal contamination caused by industrial discharge is a challenging environmental issue. Herein, an efficient adsorbent based on few-layered magnetic graphene oxide (FLMGO) was fabricated, characterized, and utilized to remove aqueous Cd(II) and Cu(II). Results present that the two components graphene oxide (GO) and Fe 3 O 4 of FLMGO promote mutually, enabling FLMGO to outperform either GO or Fe 3 O 4 . Specifically, FLMGO adsorbs Cd(II) and Cu(II) with adsorption quantities of 401.14 and 1114.22 mg·g –1 in 5 and 7 min, respectively. Moreover, FLMGO can be readily recovered via magnetic separation using a hand-held magnet. Adsorptions are spontaneous, endothermic, and entropy increasing, which are the best described by the Freundlich and pseudo-second-order model. The interaction mechanism is as follows: lone pair electrons in C=O- and C–O-related groups were coordinated toward Cd(II) and Cu(II) to induce chemical interaction. The high adsorption efficiency endows FLMGO with encouraging application potential in heavy metal remediation.

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“…Absorption peak at 2362 cm −1 can be the OH stretching in carboxyl‐phenylboric 14,55 . The peak at 1067 cm −1 specified the presence of COC in the glucose ring of β‐CD 29 . The weak absorption peak at 850 cm −1 could be skeletal vibrations of benzene ring in phenyl boric acid 56,57 .…”

Section: Resultsmentioning

confidence: 97%

“…28 HP-β-CD modified magnetic materials have shown effectively adsorption capacities for dyes and heavy. 29,30 For instance, Ting et al designed HP-β-CD modified GoldMag nanoparticles to efficiently improve the bioavailability of curcumin. 31 Gong et al investigated carboxymethyl-hydroxypropyl-bcyclodextrin polymer modified magnetic particles Fe 3 O 4 had the higher adsorption efficiencies on rutin than that of Fe 3 O 4 in the tested pH range.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of natural dyeing properties and UV resistance of silk fibers modified by phenylboronic acid/hydroxypropyl‐β‐cyclodextrin functionalized Fe₃O₄ particle

Meng

et al. 2022

J of Applied Polymer Sci

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Silk fabrics with improved UV protection and natural dyeability were prepared by in‐situ deposition method, using 4‐carboxylphenylboronic acid (4‐CPBA) functionalized 2‐hydroxypropyl‐β‐cyclodextrin (HP‐β‐CD) covered magnetic Fe3O4 particles. The as‐prepared silk fabrics were characterized by FT‐IR, XRD, XPS, TG‐DSC, and SEM techniques. The ultraviolet resistance and dyeing properties with grape seed proanthocyanidin extract (GSPE) for silk fabrics under different dyeing conditions was discussed in detail. The results showed that the phenylboronic acid functionalized HP‐β‐CD covered Fe3O4 particle was deposited on the surface of silk fiber, enhancing the adsorption and fixation of GSPE, even in weak alkaline dyebath. PBA/HP‐β‐CD/Fe3O4 modified silk fiber surface exhibited the higher color strength (K/S) and UV protection factor (UPF) than those of untreated silk fabrics under different dyeing conditions due to specific recognition and adsorption of cis‐diol‐containing GSPE dyes. Moreover, modified silk fabric possessed good color fastness after 20 times of washing circles. This study is expected to provide a promising approach to achieve functional protection and dyeing of silk fabrics.

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Preparation of hydroxypropyl-cyclodextrin-graphene / Fe3O4 and its adsorption properties for heavy metals

Cited by 46 publications

References 26 publications

Preparation of Honeycomb-Structured Activated Carbon–Zeolite Composites from Modified Fly Ash and the Adsorptive Removal of Pb(II)

Preparation of Honeycomb-Structured Activated Carbon–Zeolite Composites from Modified Fly Ash and the Adsorptive Removal of Pb(II)

Mechanism of Cd(II) and Cu(II) Adsorption onto Few-Layered Magnetic Graphene Oxide as an Efficient Adsorbent

Enhancement of natural dyeing properties and UV resistance of silk fibers modified by phenylboronic acid/hydroxypropyl‐β‐cyclodextrin functionalized Fe₃O₄ particle

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Preparation of hydroxypropyl-cyclodextrin-graphene / Fe3O4 and its adsorption properties for heavy metals

Cited by 46 publications

References 26 publications

Preparation of Honeycomb-Structured Activated Carbon–Zeolite Composites from Modified Fly Ash and the Adsorptive Removal of Pb(II)

Preparation of Honeycomb-Structured Activated Carbon–Zeolite Composites from Modified Fly Ash and the Adsorptive Removal of Pb(II)

Mechanism of Cd(II) and Cu(II) Adsorption onto Few-Layered Magnetic Graphene Oxide as an Efficient Adsorbent

Enhancement of natural dyeing properties and UV resistance of silk fibers modified by phenylboronic acid/hydroxypropyl‐β‐cyclodextrin functionalized Fe3O4 particle

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Enhancement of natural dyeing properties and UV resistance of silk fibers modified by phenylboronic acid/hydroxypropyl‐β‐cyclodextrin functionalized Fe₃O₄ particle