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01000naa a22002652 4500 |
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NLM289385881 |
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DE-627 |
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20231225062432.0 |
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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2018.1534893
|2 doi
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|a pubmed24n0964.xml
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|a (DE-627)NLM289385881
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|a (NLM)30303465
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Sun, Jiaxing
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Enhanced immobilization of mercury (II) from desulphurization wastewater by EDTA functionalized graphene oxide nanoparticles
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 06.04.2020
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|a Date Revised 07.12.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Graphene oxide (GO) is a new promising nanometer material in a superconductor and wastewater heavy metal ions removal for its functionalized groups. Ethylenediaminetetraacetic acid functionalized graphene oxide complexes (EDTA-GO) was produced by a realizable silanization chemical reaction. Characteristics of Hg(II) removal in desulphurization wastewater was also under investigation. The chemical composition and microstructures of the EDTA-GO adsorbents were characterized by X-ray photoelectron spectroscopy (XPS), Transmission electron microscope (TEM), Scanning Electron Microscopy (SEM) analyses. To investigate the performance of EDTA-GO adsorbents on adsorption of Hg(II) in wastewater of wet flue gas desulphurization (WFGD), experiments were performed to optimize the main influence factors such as reaction temperatures (35-70°C), pH values(2-13), contact time (0-120 min), initial Hg(II) concentrations(800 ug/L) and adsorbent doses (20-50 mg/L). The maximum uptake removal efficiency (97.14%) was achieved under the optimal conditions at the pH of 7, the temperature of 70°C, the Hg(II) concentration of 1200 μg/L and the EDTA-GO dose of 40 mg/L. The kinetic data fitting results were well consistent with the pseudo-second-order model (R2 = 0.99997) and a spontaneous and endothermic adsorption reaction was elaborated by thermodynamics studies (ΔG < 0, ΔH > 0, ΔS > 0). The experiments of recycled adsorbents by HCl generation were carried out to obtain the performance of the reused EDTA-GO adsorbent, the fourth regenerative adsorption efficiency still maintained 80.4%, which indicated that excellent potential application in desulphurization wastewater treatment
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|a Journal Article
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|a EDTA
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|a adsorption isotherm
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|a graphene oxide
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|a kinetics
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|a mercury
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|a regeneration
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|a Oxides
|2 NLM
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|a Waste Water
|2 NLM
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|a Water Pollutants, Chemical
|2 NLM
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|a graphene oxide
|2 NLM
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|a Graphite
|2 NLM
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|a 7782-42-5
|2 NLM
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|a Edetic Acid
|2 NLM
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|a 9G34HU7RV0
|2 NLM
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| 650 |
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|a Mercury
|2 NLM
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| 650 |
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|a FXS1BY2PGL
|2 NLM
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| 700 |
1 |
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|a Chen, Heng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qi, Dongxu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Hao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Changsong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Hongmin
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Environmental technology
|d 1993
|g 41(2020), 11 vom: 01. Apr., Seite 1366-1379
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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| 773 |
1 |
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|g volume:41
|g year:2020
|g number:11
|g day:01
|g month:04
|g pages:1366-1379
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|u http://dx.doi.org/10.1080/09593330.2018.1534893
|3 Volltext
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|a AR
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|d 41
|j 2020
|e 11
|b 01
|c 04
|h 1366-1379
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