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  1. Article ; Online: Promoted adsorptive removal of chromium(vi) ions from water by a green-synthesized hybrid magnetic nanocomposite (NFe

    Mahmoud, Mohamed E / El-Sharkawy, Rehab M / Ibrahim, Ghada A A

    RSC advances

    2021  Volume 11, Issue 24, Page(s) 14829–14843

    Abstract: A novel magnetic starch-crosslinked-magnetic ethylenediamine nanocomposite, ... ...

    Abstract A novel magnetic starch-crosslinked-magnetic ethylenediamine nanocomposite, NFe
    Language English
    Publishing date 2021-04-21
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d1ra00961c
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Adsorption of

    Abdelmonem, Islam M / Allam, Elhassan A / Gizawy, Mohamed A / El-Sharkawy, Rehab M / Mahmoud, Mohamed E

    International journal of biological macromolecules

    2022  Volume 229, Page(s) 344–353

    Abstract: A sustainable and efficient nanobentonite@sodium alginate@oleylamine (Nbent@Alg@OA) nanocomposite has been successfully synthesized via coating reaction of nanobentonite (Nbent) with alginate (Alg) and oleylamine (OA). The nanocomposite has been ... ...

    Abstract A sustainable and efficient nanobentonite@sodium alginate@oleylamine (Nbent@Alg@OA) nanocomposite has been successfully synthesized via coating reaction of nanobentonite (Nbent) with alginate (Alg) and oleylamine (OA). The nanocomposite has been characterized and examined for the adsorption of
    MeSH term(s) Spectroscopy, Fourier Transform Infrared ; Adsorption ; Alginates/chemistry ; Cobalt Radioisotopes ; Nanocomposites/chemistry ; Water Pollutants, Chemical/chemistry ; Hydrogen-Ion Concentration ; Kinetics
    Chemical Substances oleylamine (ZDQ1JWQ8DT) ; Alginates ; Cobalt-60 (5C8182XDPZ) ; Cobalt Radioisotopes ; Water Pollutants, Chemical
    Language English
    Publishing date 2022-12-29
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2022.12.288
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 2374: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  3. Article: Functionalization of CeO2-SiO2-(CH2)3-Cl nanoparticles with sodium alginate for enhanced and effective CdII, PbII, and ZnII ions removal by microwave irradiation and adsorption technique

    El-Sharkawy, Rehab M / Allam, Elhassan A / Mahmoud, Mohamed E

    Environmental nanotechnology, monitoring & management. 2020 Dec., v. 14

    2020  

    Abstract: A novel nanocomposite cored of cerium oxide nanoparticles (CeO₂) linked with sodium alginate (Sod. Alg) using 3-chloroopropyltrimethoxysilane was synthesized via a green synthesis method using microwave irradiation to yield a new (CeO₂-Si-(CH₂)₃-Alg) ... ...

    Abstract A novel nanocomposite cored of cerium oxide nanoparticles (CeO₂) linked with sodium alginate (Sod. Alg) using 3-chloroopropyltrimethoxysilane was synthesized via a green synthesis method using microwave irradiation to yield a new (CeO₂-Si-(CH₂)₃-Alg) nanocomposite. Its characteristics were evaluated using Fourier-transform infrared sptectroscopy (FT-IR), thermogravimetric thermal analysis (TGA), X-ray powder diffraction (XRD), Energy Dispersive X-rays (EDX), scanning-electron microscope (SEM) and high-resolution transmission-electron microscope (HR-TEM) to prove the possible binding between the reactants, as well as to illustrate the composition of this new nanomaterial. The SEM and HR-TEM established that the average particle size of the nanocomposite was 86.52 nm. The nanocomposite was investigated for the remediation of Pbᴵᴵ, Cdᴵᴵ and Znᴵᴵ ions from water using the microwave sorption process. Various controlling parameters were monitored during the remediation processes, including pH of contact solution, irradiation time, ionic concentration of the target metals, and the mass dosage of nanocomposite. The maximum metal up-take capacities were 1434.5, 118.9, and 61.68 mgg⁻¹ for Pbᴵᴵ, Cdᴵᴵ and Znᴵᴵ, respectively by applying 1.0 mL of 0.1 mol L⁻¹ metal ion concentration, 11−13 second irradiation time, pH 7.0, and 5.0 mg mass of the CeO₂-Si-(CH₂)₃-Alg nanocomposite. The adsorption kinetics of Pbᴵᴵ, Cdᴵᴵ, and Znᴵᴵ ions onto CeO₂-Si-(CH₂)₃-Alg nanocomposite proved to fit the pseudo-second-order kinetics model. The adsorption mechanism fitted the Freundlich isotherm model more than it did with the Langmuir model. This study confirmed the excellent characteristics of the CeO₂-Si-(CH₂)₃-Alg nanocomposite in the remediation of heavy metals from aqueous solutions.
    Keywords X-ray diffraction ; administrative management ; adsorption ; energy ; irradiation ; microwave radiation ; models ; nanoceria ; nanocomposites ; pH ; particle size ; remediation ; sodium alginate ; sorption isotherms ; thermogravimetry
    Language English
    Dates of publication 2020-12
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2821777-9
    ISSN 2215-1532
    ISSN 2215-1532
    DOI 10.1016/j.enmm.2020.100367
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Nano-manganese oxide-functionalized-oleyl amine as a simple and low cost nanosorbent for remediation of Zn

    Mahmoud, Mohamed E / Allam, Elhassan A / El-Sharkawy, Rehab M / Soliman, Mohamed A / Saad, Ebitasem A / El-Khatib, Ahmed M

    Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

    2020  Volume 159, Page(s) 108989

    Abstract: The contribution of oleyl amine as a biodegradable and simple aliphatic compound containing amine functional group (- ... ...

    Abstract The contribution of oleyl amine as a biodegradable and simple aliphatic compound containing amine functional group (-NH
    Language English
    Publishing date 2020-02-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 1142596-9
    ISSN 1872-9800 ; 0883-2889 ; 0969-8043
    ISSN (online) 1872-9800
    ISSN 0883-2889 ; 0969-8043
    DOI 10.1016/j.apradiso.2019.108989
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Ue I Zs.279: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  5. Article ; Online: A novel nanocomposite of Liquidambar styraciflua fruit biochar-crosslinked-nanosilica for uranyl removal from water.

    Mahmoud, Mohamed E / Khalifa, Mohamed A / El Wakeel, Yasser M / Header, Mennatllah S / El-Sharkawy, Rehab M / Kumar, Sandeep / Abdel-Fattah, Tarek M

    Bioresource technology

    2019  Volume 278, Page(s) 124–129

    Abstract: Biochar adsorption has been protruded as a sustainable green and economic process for water remediation. This technology is facing high challenges in removing different pollutants, owning to the stable chemical and physical features of biochar. Therefore, ...

    Abstract Biochar adsorption has been protruded as a sustainable green and economic process for water remediation. This technology is facing high challenges in removing different pollutants, owning to the stable chemical and physical features of biochar. Therefore, a novel nanocomposite of Liquidambar styraciflua fruit biochar-crosslinked-nanosilica (BC-Gl-NSi) was synthesized and characterized (surface area = 60.754 m
    MeSH term(s) Adsorption ; Charcoal/chemistry ; Fruit/chemistry ; Liquidambar/chemistry ; Nanocomposites/chemistry ; Particle Size ; Temperature ; Water/chemistry ; Water Pollutants, Chemical/chemistry ; Water Pollutants, Chemical/isolation & purification ; Water Purification/methods
    Chemical Substances Water Pollutants, Chemical ; biochar ; Water (059QF0KO0R) ; Charcoal (16291-96-6)
    Language English
    Publishing date 2019-01-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 1065195-0
    ISSN 1873-2976 ; 0960-8524
    ISSN (online) 1873-2976
    ISSN 0960-8524
    DOI 10.1016/j.biortech.2019.01.052
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 3258: Show issues

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