The Effect of Time on the Stability of Iron Oxide Nanoparticles in Environmental Acids

Rabajczyk, Anna; Yamani, Naouale El; Dušinská, Maria

doi:10.2175/106143016x14609975747685

“…When the MS particles are below 0.1 mm, they absorb oil in a proportion of about 5–20% and its reintroduction in the sintering process cannot take place. Oil absorption is beneficial when the reuse of Fe oxides in the form of industrial pigments is desired, the demand on the market being high, especially in construction activity [ 180 , 181 ]. They do not present toxicity, have low costs, are durable, and are chemically stable.…”

Section: Ferrous Wastes Perspectivesmentioning

confidence: 99%

Ferrous Industrial Wastes—Valuable Resources for Water and Wastewater Decontamination

Matei

¹

,

Predescu

²

,

Șăulean

³

et al. 2022

IJERPH

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Ferrous waste by-products from the metallurgical industry have a high potential for valorization in the context of the circular economy, and can be converted to value-added products used in environmental remediation. This research reviews the latest data available in the literature with a focus on: (i) sources from which these types of iron-based wastes originate; (ii) the types of ferrous compounds that result from different industries; (iii) the different methods (with respect to the circular economy) used to convert them into products applied in water and wastewater decontamination; (iv) the harmful effects ferrous wastes can have on the environment and human health; and (v) the future perspectives for these types of waste.

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“…SFT VOL. 54 ISSUE 2, 2019, PP [54][55][56][57][58][59][60][61][62][63][64][65][66][67][68]. The results of studies conducted by Quik et al[64] prove that particle diameter, pH, electrical conductivity and NOM are significantly correlated with CeO� NPs in the suspension.…”

mentioning

confidence: 99%

Transformations of Metal Nanoparticles in the Aquatic Environment and Threat to Environmental Safety

Tomczyk-Wydrych

¹

2019

SFT

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Przemiany nanocząsteczek metali w środowisku wodnym i zagrożenie dla bezpieczeństwa środowiskowegoABSTRACT Purpose: The aim of the article is to provide information on the transformation and interaction of metal nanoparticles in the aquatic environment. Introduction: Nanotechnology is one of the leading fields of science, combining knowledge in the fields of physics, chemistry, biology, medicine, computer science and engineering. Nanoparticles of heavy metals, due to their structure and size, exhibit new important biological, chemical and physical properties, which are impossible to achieve at the level of macro-and microscopic structures. Nanoparticles of metal and metal oxides (NPMOs) are promising substances with a wide spectrum of applications in many areas. The increasing number of products based on (NPMOs) leads to the emission of an increasing amount of these substances in various forms to the environment. The presence of NPMOs in industrial and municipal sewage affects their further migration to surface waters and soils, which in turn also leads to their introduction into the food chain. Therefore, understanding the properties and behaviour of these substances in aqueous solutions is becoming a priority in the field of safety, environmental protection and human health. Methodology: The article was prepared on the basis of a review of the literature on the subject. Conclusions: Nanoparticles of metals and metal oxides are widely used in various areas of human life, which means that they constitute an increasingly important group of compounds released to the environment, including to surface waters. Nanoparticles of metal and metal oxides play an important role in the aquatic environment, affecting numerous biophysicochemical processes. However, it should be noted that many of the processes that NPMOs undergo are determined by the size of the grains and surfaces of nanoparticles, and the metals that form the basis of these nanosubstances. Processes such as agglomeration, sedimentation, sorption on the surface of organisms, oxidation and catalysis are conditioned by numerous parameters such as the presence of other substances, the acidification/alkalization of the aquatic environment, and the presence of plant and animal organisms. In order to assess the actual or potential threat to the environment or human exposure, it is necessary to explore the mechanisms and kinetics of processes occurring in the aquatic environment with respect to nanoparticles of metals and metal oxides. Knowledge of NPMOs processes in the aquatic environment is necessary to create or enhance environmental migration models. This is an open access article under the CC BY-SA 4.0 license (https://creativecommons.org/licenses/by-sa/4.0/). ABSTRAKTCel: Celem artykułu jest przedstawienie informacji na temat przemian i interakcji nanocząstek metali zachodzących w środowisku wodnym. Wprowadzenie: Nanotechnologia to jedna z wiodących dziedzin nauki, łącząca wiedzę z obszaru fizyki, chemii, biologii, medycyny, informatyki i inżynierii. Nanocząs...

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“…All Fe 2+ compounds are generally unstable and mobile. Stable forms include Fe 3+ compounds such as oxides, hydroxides, phosphates and carbonates, as well as sulphates[63].…”

mentioning

confidence: 99%

“…SFT VOL. 54 ISSUE 2, 2019, PP [54][55][56][57][58][59][60][61][62][63][64][65][66][67][68]. The results of studies conducted by Quik et al[64] prove that particle diameter, pH, electrical conductivity and NOM are significantly correlated with CeO� NPs in the suspension.…”

mentioning

confidence: 99%

Transformations of Metal Nanoparticles in the Aquatic Environment and Threat to Environmental Safety

Tomczyk-Wydrych¹,

Rabajczyk

²

2019

SFT

2

0

View full text Add to dashboard Cite

Przemiany nanocząsteczek metali w środowisku wodnym i zagrożenie dla bezpieczeństwa środowiskowegoABSTRACT Purpose: The aim of the article is to provide information on the transformation and interaction of metal nanoparticles in the aquatic environment. Introduction: Nanotechnology is one of the leading fields of science, combining knowledge in the fields of physics, chemistry, biology, medicine, computer science and engineering. Nanoparticles of heavy metals, due to their structure and size, exhibit new important biological, chemical and physical properties, which are impossible to achieve at the level of macro-and microscopic structures. Nanoparticles of metal and metal oxides (NPMOs) are promising substances with a wide spectrum of applications in many areas. The increasing number of products based on (NPMOs) leads to the emission of an increasing amount of these substances in various forms to the environment. The presence of NPMOs in industrial and municipal sewage affects their further migration to surface waters and soils, which in turn also leads to their introduction into the food chain. Therefore, understanding the properties and behaviour of these substances in aqueous solutions is becoming a priority in the field of safety, environmental protection and human health. Methodology: The article was prepared on the basis of a review of the literature on the subject. Conclusions: Nanoparticles of metals and metal oxides are widely used in various areas of human life, which means that they constitute an increasingly important group of compounds released to the environment, including to surface waters. Nanoparticles of metal and metal oxides play an important role in the aquatic environment, affecting numerous biophysicochemical processes. However, it should be noted that many of the processes that NPMOs undergo are determined by the size of the grains and surfaces of nanoparticles, and the metals that form the basis of these nanosubstances. Processes such as agglomeration, sedimentation, sorption on the surface of organisms, oxidation and catalysis are conditioned by numerous parameters such as the presence of other substances, the acidification/alkalization of the aquatic environment, and the presence of plant and animal organisms. In order to assess the actual or potential threat to the environment or human exposure, it is necessary to explore the mechanisms and kinetics of processes occurring in the aquatic environment with respect to nanoparticles of metals and metal oxides. Knowledge of NPMOs processes in the aquatic environment is necessary to create or enhance environmental migration models. This is an open access article under the CC BY-SA 4.0 license (https://creativecommons.org/licenses/by-sa/4.0/). ABSTRAKTCel: Celem artykułu jest przedstawienie informacji na temat przemian i interakcji nanocząstek metali zachodzących w środowisku wodnym. Wprowadzenie: Nanotechnologia to jedna z wiodących dziedzin nauki, łącząca wiedzę z obszaru fizyki, chemii, biologii, medycyny, informatyki i inżynierii. Nanocząs...

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The Effect of Time on the Stability of Iron Oxide Nanoparticles in Environmental Acids

Cited by 4 publications

References 45 publications

Ferrous Industrial Wastes—Valuable Resources for Water and Wastewater Decontamination

Ferrous Industrial Wastes—Valuable Resources for Water and Wastewater Decontamination

Transformations of Metal Nanoparticles in the Aquatic Environment and Threat to Environmental Safety

Transformations of Metal Nanoparticles in the Aquatic Environment and Threat to Environmental Safety

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