Environmental Remediation and Application of Nanoscale Zero-Valent Iron and Its Composites for the Removal of Heavy Metal Ions: A Review

2016 ◽  
Vol 50 (14) ◽  
pp. 7290-7304 ◽  
Author(s):  
Yidong Zou ◽  
Xiangxue Wang ◽  
Ayub Khan ◽  
Pengyi Wang ◽  
Yunhai Liu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Environmental Remediation ◽  
Heavy Metal Ions ◽  
Zero Valent Iron ◽  
Nanoscale Zero Valent Iron

scholarly journals Quasi-reverse-emulsion-templated approach for a facile and sustainable environmental remediation for cadmium

RSC Advances ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. 6345-6357 ◽  
Author(s):  
Ruhua Zha ◽  
Tuo Shi ◽  
Zongwen Zhang ◽  
Dongli Xu ◽  
Tongwu Jiang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Environmental Remediation ◽  
Heavy Metal Ions ◽  
Highly Efficient

Highly efficient and sustainable decontamination of heavy metal ions is achieved by nanostructured hierarchical hollow α-Fe2O3 chestnut buds and nests.

scholarly journals Polyaniline-Based Nanocomposites for Environmental Remediation

2021 ◽  
Author(s):  
Thabiso C. Maponya ◽  
Mpitloane J. Hato ◽  
Thabang R. Somo ◽  
Kabelo E. Ramohlola ◽  
Mogwasha D. Makhafola ◽  
...  
Keyword(s):  
Water Pollution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Environmental Remediation ◽  
Heavy Metal Ions ◽  
Water System ◽  
Toxic Heavy Metal ◽  
Adsorptive Removal ◽  
Appropriate Treatment ◽  
Synthetic Routes

With growth in civilisation and industrialisation, there is an increase in the release of toxic heavy metal ions and dyes into water system, which is of public concern. As a result, appropriate treatment methods have to be implemented in order to mitigate and prevent water pollution. The discovery of nanotechnology has led to the development and utilisation of various nanoadsorbent for the removal of pollutants from water. PANI nanostructures and nanocomposites are noble adsorbents that have gained popularity in addressing water pollution issues and have been reported in literature. In this chapter, the main focus is on the synthesis of PANI nanocomposites and nanostructures and their application as efficient adsorbents for water treatment. Detailed discussions on different synthetic routes and characterisation have been dedicated to applications of these materials and are compared for the adsorptive removal of heavy metal ions and dyes from water.

Environmental remediation of heavy metal ions from aqueous solution through hydrogel adsorption: a critical review

2015 ◽  
Vol 73 (5) ◽  
pp. 983-992 ◽  
Author(s):  
Francis Ntumba Muya ◽  
Christopher Edoze Sunday ◽  
Priscilla Baker ◽  
Emmanuel Iwuoha
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Environmental Remediation ◽  
Heavy Metal Ions ◽  
Metal Removal ◽  
Aqueous Media ◽  
Heavy Metal Removal ◽  
Aquatic Life ◽  
Potential Toxic Elements ◽  
Treatment Technologies

Heavy metal ions such as Cd2+, Pb2+, Cu2+, Mg2+, and Hg2+ from industrial waste water constitute a major cause of pollution for ground water sources. These ions are toxic to man and aquatic life as well, and should be removed from wastewater before disposal. Various treatment technologies have been reported to remediate the potential toxic elements from aqueous media, such as adsorption, precipitation and coagulation. Most of these technologies are associated with some shortcomings, and challenges in terms of applicability, effectiveness and cost. However, adsorption techniques have the capability of effectively removing heavy metals at very low concentration (1–100 mg/L). Various adsorbents have been reported in the literature for this purpose, including, to a lesser extent, the use of hydrogel adsorbents for heavy metal removal in aqueous phase. Here, we provide an in-depth perspective on the design, application and efficiency of hydrogel systems as adsorbents.

scholarly journals Functionalized Fe3O4 Nanoparticles as Glassy Carbon Electrode Modifiers for Heavy Metal Ions Detection—A Mini Review

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7725
Author(s):  
Amanda Kulpa-Koterwa ◽  
Tadeusz Ossowski ◽  
Paweł Niedziałkowski
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Environmental Remediation ◽  
Heavy Metal Ions ◽  
Anodic Stripping Voltammetry ◽  
High Surface ◽  
High Surface Area ◽  
Volume Ratio ◽  
Shell Nanoparticles ◽  
Practical Applications

Over the past few decades, nanoparticles of iron oxide Fe3O4 (magnetite) gained significant attention in both basic studies and many practical applications. Their unique properties such as superparamagnetism, low toxicity, synthesis simplicity, high surface area to volume ratio, simple separation methodology by an external magnetic field, and renewability are the reasons for their successful utilisation in environmental remediation, biomedical, and agricultural applications. Moreover, the magnetite surface modification enables the successful binding of various analytes. In this work, we discuss the usage of core–shell nanoparticles and nanocomposites based on Fe3O4 for the modification of the GC electrode surface. Furthermore, this review focuses on the heavy metal ions electrochemical detection using Fe3O4-based nanoparticles-modified electrodes. Moreover, the most frequently used electrochemical methods, such as differential pulse anodic stripping voltammetry and measurement conditions, including deposition potential, deposition time, and electrolyte selection, are discussed.

Environmental remediation of heavy metal ions by novel-nanomaterials: A review

2019 ◽  
Vol 246 ◽  
pp. 608-620 ◽  
Author(s):  
Yihan Wu ◽  
Hongwei Pang ◽  
Yue Liu ◽  
Xiangxue Wang ◽  
Shujun Yu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Environmental Remediation ◽  
Heavy Metal Ions
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