LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 2 of total 2

Search options

  1. Article ; Online: Magnetic nanocomposites prepared from red mud and durian husk as an effective bio-adsorbent for methylene blue adsorption

    Nghia T. Bui / Thanh Thi Hoang / Phuong L. N. Nguyen / Nguyen Thi My Linh / Quoc-An Trieu / Trung Huu Bui

    Aqua, Vol 72, Iss 5, Pp 827-

    2023  Volume 840

    Abstract: An increasing interest in nanocomposites prepared from agricultural/industrial byproducts has been paid for environmental remediation, especially in water treatment. This study reports the facile preparation of a low-cost magnetic biocomposite of ... ...

    Abstract An increasing interest in nanocomposites prepared from agricultural/industrial byproducts has been paid for environmental remediation, especially in water treatment. This study reports the facile preparation of a low-cost magnetic biocomposite of magnetic Fe3O4 nanoparticles (NPs) incorporated with biopolymers extracted from durian husk, called bp-Fe3O4 and examined in the removal of methylene blue (MB) dye. Here, Fe2O3 NPs were first recovered from red mud waste and then converted to magnetic nanostructured Fe3O4 using a one-pot process via carbon combustion. The bp-Fe3O4 inherited the characteristics of each constituent component, while showing slightly higher saturation magnetization than the bare Fe3O4 NPs (19.84 and 18.66 emu/g, respectively), allowing for easy separation from the aqueous solution using a suitable magnet. The MB adsorption on bp-Fe3O4 reached an equilibrium state within 60 min reaction and achieved >90% of removal (at 50 mg/L MB) at an optimal pH range of 6–8. The effective adsorption of MB dye was attributed to both the hydroxylated-Fe3O4 NPs and biopolymers. The material showed excellent reusability tested up to the seventh MB adsorption cycle (decreased by <2% of adsorption efficiency). Overall, the outstanding magnetic properties and low-cost bp-Fe3O4 rendered them easily manipulated and separated, and reusable for water/wastewater treatment of MB dye. HIGHLIGHTS Magnetic biopolymer@Fe3O4 was successfully prepared from red mud and durian husk.; Magnetic Fe3O4 nanoparticles were prepared using a one-pot carbon combustion.; Good magnetic properties render them easily separated using a suitable magnet.; Fast and effective removal of methylene blue (MB) on the biopolymer@Fe3O4 at pH 7.; Good reusability of the biopolymer@Fe3O4 during 7 runs of MB adsorption–desorption.;
    Keywords adsorption ; biocomposite ; durian husk ; magnetic nanoparticles ; methylene blue ; Environmental technology. Sanitary engineering ; TD1-1066 ; Environmental sciences ; GE1-350
    Subject code 540
    Language English
    Publishing date 2023-05-01T00:00:00Z
    Publisher IWA Publishing
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: Determinants of Trade Between Taiwan and ASEAN Countries

    Nhan Thanh Thi Hoang / Hoan Quang Truong / Chung Van Dong

    SAGE Open, Vol

    A PPML Estimator Approach

    2020  Volume 10

    Abstract: Taiwan and Association of Southeast Asian Nations (ASEAN) do not have any diplomatic ties, but they have enjoyed significantly economic benefits, especially bilateral investment and trade cooperation. Over the period 2000–2017, trade between Taiwan and ... ...

    Abstract Taiwan and Association of Southeast Asian Nations (ASEAN) do not have any diplomatic ties, but they have enjoyed significantly economic benefits, especially bilateral investment and trade cooperation. Over the period 2000–2017, trade between Taiwan and ASEAN had significantly focused on manufactured goods embodied with high-skill and technology-intensive content. Using gravity model with a PPML (Poisson pseudo-maximum-likelihood) estimator, this article explores determinants of bilateral trade flows between them at both aggregate and sectoral levels. We found that economic scale and per capital income of ASEAN have much stronger effects than those of Taiwan at both aggregate trade and the degree of manufacturing. Results also show that bilateral trade between Taiwan and ASEAN has been efficiently performed over recent decades, except for cases of Myanmar and Cambodia. Hence, a dynamic approach should be taken by both sides to promote bilateral trade relations in future.
    Keywords History of scholarship and learning. The humanities ; AZ20-999 ; Social Sciences ; H
    Subject code 381
    Language English
    Publishing date 2020-05-01T00:00:00Z
    Publisher SAGE Publishing
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top