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  1. Article ; Online: Visible light antibacterial potential of cement mortar incorporating Cu-ZnO/g-C

    Liu, Xiaomin / Yang, Zhengxian / Li, Kang / Briseghella, Bruno / Marano, Giuseppe Carlo / Xu, Jiankun

    RSC advances

    2023  Volume 13, Issue 14, Page(s) 9448–9456

    Abstract: In this work, a hybrid Cu-ZnO/g- ... ...

    Abstract In this work, a hybrid Cu-ZnO/g-C
    Language English
    Publishing date 2023-03-22
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d2ra08281k
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Effect of Modified Cow Dung Fibers on Strength and Autogenous Shrinkage of Alkali-Activated Slag Mortar.

    Li, Kang / Yang, Zhengxian / Yan, Xueyuan / Xu, Liying / Briseghella, Bruno / Marano, Giuseppe Carlo

    Materials (Basel, Switzerland)

    2023  Volume 16, Issue 20

    Abstract: Alkali-activated slag (AAS) presents a promising alternative to ordinary Portland cement due to its cost effectiveness, environmental friendliness, and satisfactory durability characteristics. In this paper, cow dung waste was recycled as a renewable ... ...

    Abstract Alkali-activated slag (AAS) presents a promising alternative to ordinary Portland cement due to its cost effectiveness, environmental friendliness, and satisfactory durability characteristics. In this paper, cow dung waste was recycled as a renewable natural cellulose fiber, modified with alkali, and then added to AAS mortar. The physico-chemical characteristics of raw and modified cow dung fibers were determined through Fourier transform infrared (FTIR), X-ray diffraction (XRD), and Scanning electron microscope (SEM). Investigations were conducted on the dispersion of cow dung fibers in the AAS matrix, as well as the flowability, strength, and autogenous shrinkage of AAS mortar with varying cow dung fiber contents. The results indicated that modified fiber has higher crystallinity and surface roughness. The ultrasonic method showed superior effectiveness compared to pre-mixing and after-mixing methods. Compared with raw cow dung fibers, modified fibers led to an increase of 11.3% and 36.3% of the 28 d flexural strength and compressive strength of the AAS mortar, respectively. The modified cow dung fibers had a more significant inhibition on autogenous shrinkage, and the addition of 2 wt% cow dung fibers reduced the 7 d autogenous shrinkage of the AAS paste by 52.8% due to the "internal curing effect." This study provides an alternative value-added recycling option for cow dung fibers as a potential environmentally friendly and sustainable reinforcing raw material for cementitious materials, which can be used to develop low autogenous shrinkage green composites.
    Language English
    Publishing date 2023-10-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma16206808
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Photocatalytic concrete for degrading organic dyes in water.

    Zhou, Yiming / Elchalakani, Mohamed / Liu, Houfeng / Briseghella, Bruno / Sun, Chuanzhi

    Environmental science and pollution research international

    2022  Volume 29, Issue 26, Page(s) 39027–39040

    Abstract: Since the advent of photocatalytic degradation technology, it has brought new vitality to the environmental governance and the response to the energy crisis. Photocatalysts harvest optical energy to drive chemical reactions, which means people can use ... ...

    Abstract Since the advent of photocatalytic degradation technology, it has brought new vitality to the environmental governance and the response to the energy crisis. Photocatalysts harvest optical energy to drive chemical reactions, which means people can use solar energy to complete some resource-consuming activities by photocatalysts, such as environmental governance. In recent years, researchers have tried to combine photocatalyst TiO
    Language English
    Publishing date 2022-01-31
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-021-18332-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

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    In stock of ZB MED Bonn / Germany

    Z 5915: Show issues

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  4. Article: Photocatalytic concrete for degrading organic dyes in water

    Zhou, Yiming / Elchalakani, Mohamed / Liu, Houfeng / Briseghella, Bruno / Sun, Chuanzhi

    Environmental science and pollution research. 2022 June, v. 29, no. 26

    2022  

    Abstract: Since the advent of photocatalytic degradation technology, it has brought new vitality to the environmental governance and the response to the energy crisis. Photocatalysts harvest optical energy to drive chemical reactions, which means people can use ... ...

    Abstract Since the advent of photocatalytic degradation technology, it has brought new vitality to the environmental governance and the response to the energy crisis. Photocatalysts harvest optical energy to drive chemical reactions, which means people can use solar energy to complete some resource-consuming activities by photocatalysts, such as environmental governance. In recent years, researchers have tried to combine photocatalyst TiO₂ with building materials to purify urban air and obtained good results. One of the important functions of photocatalysts is to degrade organic pollutants in water through light energy, but this technology has not been reported in the practical application areas. To extend this technology to practical application areas, photocatalytic concrete for degrading pollutants in waters was proposed and demonstrated for the first time in this paper. The photocatalytic concrete proposed based on the K-g-C₃N₄ shows a strong ability to degrade the organic dyes. According to the experiment results, the angle of light source plays an important role in the process of photocatalytic degradation, while waters with pH value of 6.5–8.5 hardly influenced the degradation of organic dyes. When the angle of light source is advantageous for photocatalytic concrete to absorb more visible light, more organic dyes will be degraded by photocatalytic concrete. The degradation rate of methylene blue could reach about 80% in ½ hour under desirable conditions and is satisfied compared with that of reported works. This study implicates that photocatalytic concrete can effectively degrade organic dyes in water. The influences of changes in the water environment hardly affect the degradation of organic pollutants, which means photocatalytic concrete can be widely used in green infrastructures to achieve urban sewage treatment.
    Keywords air ; concrete ; energy ; environmental governance ; light ; methylene blue ; pH ; photocatalysis ; photocatalysts ; pollution ; research ; sewage treatment ; solar energy
    Language English
    Dates of publication 2022-06
    Size p. 39027-39040.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-021-18332-2
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 5915: Show issues

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  5. Article ; Online: NO

    Yang, Zhengxian / Xiong, Xiaoli / Yan, Xueyuan / Luo, Shengyang / Zhang, Yong / Briseghella, Bruno / Marano, Giuseppe Carlo

    RSC advances

    2023  Volume 13, Issue 31, Page(s) 21510–21520

    Abstract: In this study a new photocatalytic nanocomposite, S-g- ... ...

    Abstract In this study a new photocatalytic nanocomposite, S-g-C
    Language English
    Publishing date 2023-07-18
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d3ra04243j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    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.

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