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  1. Article ; Online: Unearthing Earth's secrets: Exploring the environmental legacy of contaminants in soil, water, and sediments.

    Devendrapandi, Gautham / Balu, Ranjith / Ayyappan, K / Ayyamperumal, Ramamoorthy / Alhammadi, Salh / Lavanya, Mahimaluru / Senthilkumar, R / Karthika, P C

    Environmental research

    2024  Volume 249, Page(s) 118246

    Abstract: The Earth's history is documented in human civilizations, soil layers, river movement, and quiet sediments throughout millennia. This investigation explores the significant legacy of environmental toxins in these key planet components. Understanding how ... ...

    Abstract The Earth's history is documented in human civilizations, soil layers, river movement, and quiet sediments throughout millennia. This investigation explores the significant legacy of environmental toxins in these key planet components. Understanding how ancient activity shaped the terrain is crucial as mankind faces environmental issues. This interdisciplinary study uses environmental science, archaeology, and geology to uncover Earth's mysteries. It illuminates the dynamic processes that have built our globe by studying pollutants and soil, water, and sediments. This research follows human actions, both intentional and unintentional, from ancient civilizations through contemporary industrialization and their far-reaching effects. Environmental destiny examines how contaminants affect ecosystems and human health. This study of past contamination helps solve modern problems including pollution cleanup, sustainable land management, and water conservation. This review studies reminds us that our previous activities still affect the ecosystem in a society facing rapid urbanisation and industrialization. It emphasises the importance of environmental stewardship and provides a framework for making educated choices to reduce toxins in soil, water, and sediments. Discovery of Earth's secrets is not only a historical curiosity; it's a necessary step towards a sustainable and peaceful cohabitation with our home planet.
    MeSH term(s) Geologic Sediments/chemistry ; Geologic Sediments/analysis ; Soil Pollutants/analysis ; Humans ; Earth, Planet ; Soil/chemistry ; Environmental Monitoring/history ; Environmental Monitoring/methods ; Water Pollutants, Chemical/analysis ; Environmental Pollution/history ; Environmental Pollution/analysis
    Chemical Substances Soil Pollutants ; Soil ; Water Pollutants, Chemical
    Language English
    Publishing date 2024-01-24
    Publishing country Netherlands
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't ; Historical Article
    ZDB-ID 205699-9
    ISSN 1096-0953 ; 0013-9351
    ISSN (online) 1096-0953
    ISSN 0013-9351
    DOI 10.1016/j.envres.2024.118246
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Innovative remediation strategies for persistent organic pollutants in soil and water: A comprehensive review.

    Devendrapandi, Gautham / Liu, Xinghui / Balu, Ranjith / Ayyamperumal, Ramamoorthy / Valan Arasu, Mariadhas / Lavanya, Mahimaluru / Minnam Reddy, Vasudeva Reddy / Kim, Woo Kyoung / Karthika, P C

    Environmental research

    2024  Volume 249, Page(s) 118404

    Abstract: Persistent organic pollutants (POPs) provide a serious threat to human health and the environment in soil and water ecosystems. This thorough analysis explores creative remediation techniques meant to address POP pollution. Persistent organic pollutants ... ...

    Abstract Persistent organic pollutants (POPs) provide a serious threat to human health and the environment in soil and water ecosystems. This thorough analysis explores creative remediation techniques meant to address POP pollution. Persistent organic pollutants are harmful substances that may withstand natural degradation processes and remain in the environment for long periods of time. Examples of these pollutants include dioxins, insecticides, and polychlorinated biphenyls (PCBs). Because of their extensive existence, cutting-edge and environmentally friendly eradication strategies must be investigated. The most recent advancements in POP clean-up technology for soil and water are evaluated critically in this article. It encompasses a wide range of techniques, such as nanotechnology, phytoremediation, enhanced oxidation processes, and bioremediation. The effectiveness, cost-effectiveness, and environmental sustainability of each method are assessed. Case studies from different parts of the world show the difficulties and effective uses of these novel techniques. The study also addresses new developments in POP regulation and monitoring, highlighting the need of all-encompassing approaches that include risk assessment and management. In order to combat POP pollution, the integration of diverse remediation strategies, hybrid approaches, and the function of natural attenuation are also examined. Researchers, legislators, and environmental professionals tackling the urgent problem of persistent organic pollutants (POPs) in soil and water should benefit greatly from this study, which offers a complete overview of the many approaches available for remediating POPs in soil and water.
    MeSH term(s) Soil Pollutants/analysis ; Environmental Restoration and Remediation/methods ; Water Pollutants, Chemical/analysis ; Persistent Organic Pollutants ; Biodegradation, Environmental
    Chemical Substances Soil Pollutants ; Water Pollutants, Chemical ; Persistent Organic Pollutants
    Language English
    Publishing date 2024-02-08
    Publishing country Netherlands
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 205699-9
    ISSN 1096-0953 ; 0013-9351
    ISSN (online) 1096-0953
    ISSN 0013-9351
    DOI 10.1016/j.envres.2024.118404
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Investigation of the Photoluminescence and Nonlinear Optical Properties of Ce₂O₃-TiO₂ Nanocomposites.

    Karthika, P C / Rahulan, K Mani / Sasidharan, Manickam / Vinitha, G / Seema, R / Vivekananthan, S / Umar, Ahmad

    Journal of nanoscience and nanotechnology

    2021  Volume 21, Issue 10, Page(s) 5201–5206

    Abstract: This paper reports the photoluminescence and nonlinear optical (NLO) properties of Ce₂O₃-TiO₂ nanocomposites synthesized via sol-gel process with different concentrations of cerium. The physical characterization studies by means of XRD indicated for the ... ...

    Abstract This paper reports the photoluminescence and nonlinear optical (NLO) properties of Ce₂O₃-TiO₂ nanocomposites synthesized via sol-gel process with different concentrations of cerium. The physical characterization studies by means of XRD indicated for the successful incorporation of Ce into the lattice of TiO₂, while the UV-visible spectra for an absorption edge shift of TiO₂ to the higher wavelength side following the Ce addition, and FESEM analysis for the morphology and particles sizes of the synthesized materials. On testing of the photoluminescence properties recorded through time-resolved fluorescence (TCSPC) technique, a decrease in the intensity of TiO₂ with that of increased Ce concentration was observed and is due to an escalation in the number of oxygen vacancies. Further, the observation NLO properties for Ce₂O₃-TiO₂ was done by a
    Language English
    Publishing date 2021-04-20
    Publishing country United States
    Document type Journal Article
    ISSN 1533-4899
    ISSN (online) 1533-4899
    DOI 10.1166/jnn.2021.19338
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Enhanced Photocatalytic Behavior of (GO/Cu₂O) Composite with Cu₂O Being Synthesized Through Green Route.

    Muthukumaran, M / Dhinagaran, G / Narayanan, V / Raju, T / Venkatachalam, K / Karthika, P C / Vivekananthandan, S / Sagadevan, Suresh / Roselin, L Selva / Selvin, Rosilda

    Journal of nanoscience and nanotechnology

    2019  Volume 19, Issue 11, Page(s) 7215–7220

    Abstract: Graphene oxide/Cuprous oxide (GO/Cu₂O) composite is a visible light photocatalyst for the degradation of dyes. A simple and efficient approach for preparing GO/Cu₂O composite adopted in this study involves reducing cuprous oxide precursors in the ... ...

    Abstract Graphene oxide/Cuprous oxide (GO/Cu₂O) composite is a visible light photocatalyst for the degradation of dyes. A simple and efficient approach for preparing GO/Cu₂O composite adopted in this study involves reducing cuprous oxide precursors in the presence of graphene oxide using an aqueous solution of pulp derived from banana fruit. The GO/Cu₂O composite was characterized by Fourier transform infrared spectroscopy (FT-IR), Diffused reflectance Ultraviolet visible spectroscopy (DRS UV-Vis), Raman spectroscopy and Field Emission Scanning electron microscopy (FE-SEM). Cu₂O particles were distributed randomly on the graphene oxide sheets due to the template effect of GO. The results showed higher photocatalytic activity for the composite (band gap 2.13 eV), for the degradation of the organic dyes (Methylene blue and Rhodamine-B). The enhanced photocatalytic activity is due to effective charge transfer from GO to Cu₂O, and high specific surface area which improves the effective separation of the generated electron-hole pairs. Our present study is inspired by a facile, low cost, green production of (GO/Cu₂O) composite whose photocatalytic activity can be extended to degradation of all other water-born textile dyes.
    Language English
    Publishing date 2019-04-30
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1533-4899
    ISSN (online) 1533-4899
    DOI 10.1166/jnn.2019.16671
    Database MEDical Literature Analysis and Retrieval System OnLINE

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