The outcome of human exposure to environmental contaminants. Importance of water and air purification processes

Jankowska, Agata; Ejsmont, Aleksander; Galarda, Aleksandra; Gościańska, Joanna

doi:10.1016/b978-0-323-99425-5.00003-7

Cited by 9 publications

(4 citation statements)

References 195 publications

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“…[71] Disperse blue 291 Can cause DNA fragmentation and increase the apoptotic index in humans. [72] Disperse red 1 Mutagenic and can increase the frequency of micronuclei, indicating mutagenic activity at the chromosome level.…”

Section: Malachite Greenmentioning

confidence: 99%

Recent Advances in Nanocellulose Aerogels for Efficient Heavy Metal and Dye Removal

Ahmad

Kamaruddin

Khalil

et al. 2023

Gels

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Water pollution is a significant environmental issue that has emerged because of industrial and economic growth. Human activities such as industrial, agricultural, and technological practices have increased the levels of pollutants in the environment, causing harm to both the environment and public health. Dyes and heavy metals are major contributors to water pollution. Organic dyes are a major concern because of their stability in water and their potential to absorb sunlight, increasing the temperature and disrupting the ecological balance. The presence of heavy metals in the production of textile dyes adds to the toxicity of the wastewater. Heavy metals are a global issue that can harm both human health and the environment and are mainly caused by urbanization and industrialization. To address this issue, researchers have focused on developing effective water treatment procedures, including adsorption, precipitation, and filtration. Among these methods, adsorption is a simple, efficient, and cheap method for removing organic dyes from water. Aerogels have shown potential as a promising adsorbent material because of their low density, high porosity, high surface area, low thermal and electrical conductivity, and ability to respond to external stimuli. Biomaterials such as cellulose, starch, chitosan, chitin, carrageenan, and graphene have been extensively studied for the production of sustainable aerogels for water treatment. Cellulose, which is abundant in nature, has received significant attention in recent years. This review highlights the potential of cellulose-based aerogels as a sustainable and efficient material for removing dyes and heavy metals from water during the treatment process.

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Section: Malachite Greenmentioning

confidence: 99%

Recent Advances in Nanocellulose Aerogels for Efficient Heavy Metal and Dye Removal

Ahmad

Kamaruddin

Khalil

et al. 2023

Gels

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show abstract

“…It is widely used in diverse industries, including textiles, leather, papermaking, cosmetics and food processing [2]. Long-term exposure to this dye can result in vomiting, diarrhea, cancers and even death [3,4]. Thus, the unregulated discharge of MO can cause significant threats to human health and also environmental safety.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Adsorption of Methyl Orange from Aqueous Phase Using Chitosan–Palmer Amaranth Biochar Composite Microspheres

Chen,

Yin,

Zhang

et al. 2024

Molecules

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To develop valuable applications for the invasive weed Palmer amaranth, we utilized it as a novel biochar source and explored its potential for methyl orange adsorption through the synthesis of chitosan-encapsulated Palmer amaranth biochar composite microspheres. Firstly, the prepared microspheres were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy and were demonstrated to have a surface area of 19.6 m2/g, a total pore volume of 0.0664 cm3/g and an average pore diameter of 10.6 nm. Then, the influences of pH, dosage and salt type and concentration on the adsorption efficiency were systematically investigated alongside the adsorption kinetics, isotherms, and thermodynamics. The results reveal that the highest adsorption capacity of methyl orange was obtained at pH 4.0. The adsorption process was well fitted by a pseudo-second-order kinetic model and the Langmuir isotherm model, and was spontaneous and endothermic. Through the Langmuir model, the maximal adsorption capacities of methyl orange were calculated as 495.0, 537.1 and 554.3 mg/g at 25.0, 35.0 and 45.0 °C, respectively. Subsequently, the adsorption mechanisms were elucidated by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy investigations. It is indicated that electrostatic interactions, hydrogen bonding, π–π interactions and hydrophobic interactions between methyl orange and the composite microspheres were pivotal for the adsorption process. Finally, the regeneration studies demonstrated that after five adsorption–desorption cycles, the microspheres still maintained 93.6% of their initial adsorption capacity for methyl orange. This work not only presents a promising method for mitigating methyl orange pollution but also offers a sustainable approach to managing Palmer amaranth invasion.

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“…In aquatic environments, dyes represent a great threat to aquatic organisms, as they can participate in the reduction of dissolved oxygen, generating anoxic and anaerobic conditions, and impede the passage of sunlight and the diffusion of oxygen, thus interfering with the development of different forms of aquatic life [19]. Studies have revealed that dyes are the cause of illnesses and can even cause cancer [20]. In this sense, water pollution by dyes has become a great threat due to their high toxicity and their chemical stability, which makes them resistant to many degradation processes and difficult to eliminate in conventional treatment plants.…”

Section: Introductionmentioning

confidence: 99%

Use of Zero-Valent Iron Nanoparticles (nZVIs) from Environmentally Friendly Synthesis for the Removal of Dyes from Water—A Review

Rodríguez-Rasero,

Montes-Jimenez,

Alexandre-Franco

et al. 2024

Water

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This review article addresses the increasing environmental concerns posed by synthetic dyes in water, exploring innovative approaches for their removal with a focus on zero-valent iron nanoparticles (nZVIs) synthesized through environmentally friendly methods. The article begins by highlighting the persistent nature of synthetic dyes and the limitations of conventional degradation processes. The role of nanoparticles in environmental applications is then discussed, covering diverse methods for metallic nanoparticle production aligned with green chemistry principles. Various methods, including the incorporation of secondary metals, surface coating, emulsification, fixed support, encapsulation, and electrostatic stabilization, are detailed in relation to the stabilization of nZVIs. A novel aspect is introduced in the use of plant extract or biomimetic approaches for chemical reduction during nZVI synthesis. The review investigates the specific challenges posed by dye pollution in wastewater from industrial sources, particularly in the context of garment coloring. Current approaches for dye removal in aqueous environments are discussed, with an emphasis on the effectiveness of green-synthesized nZVIs. The article concludes by offering insights into future perspectives and challenges in the field. The intricate landscape of environmentally friendly nZVI synthesis has been presented, showcasing its potential as a sustainable solution for addressing dye pollution in water.

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The outcome of human exposure to environmental contaminants. Importance of water and air purification processes

Cited by 9 publications

References 195 publications

Recent Advances in Nanocellulose Aerogels for Efficient Heavy Metal and Dye Removal

Recent Advances in Nanocellulose Aerogels for Efficient Heavy Metal and Dye Removal

Enhanced Adsorption of Methyl Orange from Aqueous Phase Using Chitosan–Palmer Amaranth Biochar Composite Microspheres

Use of Zero-Valent Iron Nanoparticles (nZVIs) from Environmentally Friendly Synthesis for the Removal of Dyes from Water—A Review

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