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  1. Article ; Online: Application progress of two-dimensional correlation spectroscopy in biomass

    Gao Tianliang / Zhao Chuanshan / Ding Qijun

    E3S Web of Conferences, Vol 233, p

    2021  Volume 01058

    Abstract: As a renewable resource, biomass resources have been widely concerned. The internal structure and changes of the graduate students play an important role in the utilization of biomass. Compared with conventional spectroscopy technology, two-dimensional ... ...

    Abstract As a renewable resource, biomass resources have been widely concerned. The internal structure and changes of the graduate students play an important role in the utilization of biomass. Compared with conventional spectroscopy technology, two-dimensional correlation spectroscopy (2D-COS) can provide not only the characteristic information of each functional group, but also the interaction information between each functional group. Therefore, the application of two-dimensional correlation spectroscopy in biomass has attracted increasing attention. First introduced the 2D-COS technology, focusing on the application progress of 2D-COS in the internal structure of graduate student molecules and molecules, biomass energy utilization technology and other aspects. Finally, the existing problems and future prospects are analyzed.
    Keywords Environmental sciences ; GE1-350
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article: Polyethyleneimine/activated carbon paper-based material for low-concentration hexavalent chromium removal

    Gao, Tianliang / Zhao, Chuanshan / Wang, Sha / Li, Xia / Ding, Qijun

    Cellulose. 2022 Sept., v. 29, no. 13

    2022  

    Abstract: Activated carbon paper-based materials were prepared from softwood pulp, activated carbon powder, and polyester fiber through wet forming process. Then polyethyleneimine was loaded on the activated carbon paper-based materials using physical impregnation ...

    Abstract Activated carbon paper-based materials were prepared from softwood pulp, activated carbon powder, and polyester fiber through wet forming process. Then polyethyleneimine was loaded on the activated carbon paper-based materials using physical impregnation method to fabricate green, low cost, and degradable PEI/activated carbon composite paper-based adsorbent materials (PPCA) for the removal of Cr(VI) from drinking water. The surface characteristics of the adsorbent were analyzed by SEM, EDX, BET, FT-IR, and XPS. It was found that the maximum adsorption capacity of Cr(VI) could reach up to 1.58 mg g⁻¹ when the PEI immersion concentration is 1%, the contact time is 180 min, the temperature is 30 °C and pH = 2. The adsorption of Cr(VI) on PPCA conformed to both the freundlich isotherm model and the quasi-second-order kinetic model, indicating that the adsorption was multi-molecular layer adsorption controlled by chemical reaction process. The adsorption mechanism of Cr(VI) on PPCA included electrostatic attraction, redox and chelation. Overall, this study provides a green, large-scalable production way for the preparation of biodegradable adsorption materials for the efficient removal of Cr(VI) from drinking water aiding the safe management of aqueous system.
    Keywords activated carbon ; adsorbents ; adsorption ; biodegradability ; cellulose ; chelation ; chromium ; electrostatic interactions ; kinetics ; models ; pH ; polyesters ; polyethyleneimine ; pulp ; softwood ; sorption isotherms ; temperature
    Language English
    Dates of publication 2022-09
    Size p. 7301-7315.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 1496831-9
    ISSN 1572-882X ; 0969-0239
    ISSN (online) 1572-882X
    ISSN 0969-0239
    DOI 10.1007/s10570-022-04720-5
    Database NAL-Catalogue (AGRICOLA)

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