Heavy metal water pollution: A fresh look about hazards, novel and conventional remediation methods

Environmental Technology & Innovation, Год журнала: 2021, Номер 22, С. 101504 - 101504

Опубликована: Март 20, 2021

Язык: Английский

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Removal of Heavy Metal Ions from Water and Wastewaters by Sulfur-Containing Precipitation Agents

Water Air & Soil Pollution, Год журнала: 2020, Номер 231(10)

Опубликована: Сен. 28, 2020

Abstract Restrictive requirements for maximum concentrations of metals introduced into the environment lead to search effective methods their removal. Chemical precipitation using hydroxides or sulfides is one most commonly used removing from water and wastewater. The process simple inexpensive. However, during metal hydroxide precipitation, large amounts solids are formed. As a result, getting amphoteric it can go back solution. On other hand, use characterized by lower solubility compared with that hydroxides, so higher degree reduction be achieved in shorter time. Disadvantages very low sulfides, highly sensitive dosing agent, risks emission toxic hydrogen sulfide. All these restrictions forced new precipitants. Potassium/sodium thiocarbonate (STC) 2,4,6-trimercaptotiazine (TMT) widely used. Dithiocarbamate (DTC) compounds also used, e.g., sodium dimethyldithiocarbamate (SDTC), ligands permanent binding, 1,3-benzenediamidoethanethiol (BDETH 2 ), 2,6-pyridinediamidoethanethiol (PyDET), pyridine-based thiol ligand (DTPY) open chains containing many sulfur atoms, tetrahedral bonding arrangement around central atom. possibility improving efficiency obtained dose precipitating agent. byproducts often produced. It required agents not only effectively remove ions solution but bind dyes complexes.

Язык: Английский

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Biosensing with DNAzymes

Chemical Society Reviews, Год журнала: 2021, Номер 50(16), С. 8954 - 8994

Опубликована: Янв. 1, 2021

This article provides a comprehensive review of biosensing with DNAzymes, providing an overview different sensing applications while highlighting major progress and seminal contributions to the field portable biosensor devices point-of-care diagnostics. Specifically, functional nucleic acids is introduced, specific focus on DNAzymes. The incorporation DNAzymes into bioassays then described, followed by detailed recent advances in development vivo platforms sensors incorporating for molecular recognition. Finally, critical perspective field, summary where DNAzyme-based may make biggest impact are provided.

Язык: Английский

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Environmental applications of carbon-based materials: a review

Environmental Chemistry Letters, Год журнала: 2020, Номер 19(1), С. 557 - 582

Опубликована: Сен. 4, 2020

Язык: Английский

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AIE-based luminescence probes for metal ion detection

Coordination Chemistry Reviews, Год журнала: 2020, Номер 429, С. 213693 - 213693

Опубликована: Дек. 17, 2020

Язык: Английский

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Production, characterization, activation and environmental applications of engineered biochar: a review

Environmental Chemistry Letters, Год журнала: 2021, Номер 19(3), С. 2261 - 2297

Опубликована: Янв. 16, 2021

Язык: Английский

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Carbon-based nanomaterials for remediation of organic and inorganic pollutants from wastewater. A review

Environmental Chemistry Letters, Год журнала: 2020, Номер 18(4), С. 1169 - 1191

Опубликована: Апрель 15, 2020

Язык: Английский

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Aptamer-Based Biosensors for Environmental Monitoring

Frontiers in Chemistry, Год журнала: 2020, Номер 8

Опубликована: Май 29, 2020

Due to their relative synthetic and chemical simplicity compared antibodies, aptamers afford enhanced stability functionality for the detection of environmental contaminants use in monitoring. Furthermore, nucleic acid can be selected toxic targets which may prove difficult antibody development. Of particular relevance, have been used develop biosensors such as heavy metals, small-molecule agricultural toxins, water-borne bacterial pathogens. This review will focus on recent aptamer-based developments diverse contaminants. Within this domain, combined with other technologies various signal outputs. The goal much work is cost-effective, user-friendly methods that complement or replace traditional monitoring strategies. highlight examples area. Additionally, innovative wearable devices, sentinel materials, lab-on-a-chip designs, there exists significant potential development multifunctional Examples these also highlighted. Finally, a critical perspective field, thoughts future research directions offered.

Язык: Английский

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Photocatalysis vs adsorption by metal oxide nanoparticles

Journal of Material Science and Technology, Год журнала: 2022, Номер 131, С. 122 - 166

Опубликована: Июнь 8, 2022

Язык: Английский

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Sustainable and efficient technologies for removal and recovery of toxic and valuable metals from wastewater: Recent progress, challenges, and future perspectives

Chemosphere, Год журнала: 2021, Номер 292, С. 133102 - 133102

Опубликована: Дек. 13, 2021

Язык: Английский

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