Nanomaterials for remediation of contaminants: a review

Kumar, Lakhan; Ragunathan, V.; Chugh, Mohita; Bharadvaja, Navneeta

doi:10.1007/s10311-021-01212-z

Cited by 48 publications

(16 citation statements)

References 199 publications

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“…Antibiotics are one of the most emergent pollutants in natural aqueous environments worldwide due to the increased antibiotic abuse, resulting from the increased demand of the pharmaceuticals and the rapid development of the drug and medical industry (Akhil et al 2021 ; Kumar et al 2021 ; Madhura et al 2018 ; Shi et al 2019 ; Wei et al 2020 ; Yang et al 2021b ). Tetracycline, one of the highly effective broad-spectrum prescribed antibiotics, is extensively used in the therapeutic treatment, and livestock and poultry industry (Daghrir and Drogui 2013 ; Peng et al 2021 ; Zheng et al 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

2021

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Antibiotic pollution is a major health issue inducing antibiotic resistance and the inefficiency of actual drugs, thus calling for improved methods to clean water and wastewater. Here we review the recent development of heterojunction photocatalysis and application in degrading tetracycline. We discuss mechanisms for separating photogenerated electron–hole pairs in different heterojunction systems such as traditional, p–n, direct Z-scheme, step-scheme, Schottky, and surface heterojunction. Degradation pathways of tetracycline during photocatalysis are presented. We compare the efficiency of tetracycline removal by various heterojunctions using quantum efficiency, space time yield, and figures of merit. Implications for the treatment of antibiotic-contaminated wastewater are discussed.

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Section: Introductionmentioning

confidence: 99%

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

2021

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“…To ascertain the behaviour of nanomaterials, it is substantial to examine some precise processes such as dissolution and sedimentation. Enumeration of these precise processes varies from the categories of conventional contaminants like organic micropollutants and heavy metals [68,69]. Aggregation and sedimentation data from the experimental process are necessarily required for the improvement of the parameters input of the nanomaterial fate model [70,71].…”

Section: Nanomaterials Toxicity In Aquatic Ecosystemmentioning

confidence: 99%

Toxicological Effects of Nanomaterials on the Aquatic Biota

Usman

2023

Emerging Nanomaterials and Their Impact on Society in the 21st Century

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Globally nanotechnology has transformed many sectors of human endeavour due to the innovative introduction of different unique materials and products in various areas. Presently large quantities of nanomaterials are synthesized and are essential for several industrial applications. This facilitates and enhances research in biophysics, biochemistry, wastewater treatment, etc. Nanotechnology and other science-related discipline have been combined to synthesize novel nanomaterials through modification of their shapes, composition, and dimension which can be used for various applications in medicines, agriculture, environmental remediation, etc. Despite their peculiar advantages and wide application in several industrials and domestic sectors, fabricated materials of nano-size scale have been raising concerns of unsafety for both human and aquatic biota, due to their incessant release into the aquatic ecosystem. These nanomaterials are ingested by the aquatic biota, from which they bioaccumulate in the organism’s body and hence pass to humans via the food chain. Within the organism’s body, nanomaterials serve as foreign material with different physicochemical characteristics because of their peculiar small sizes. Thus, the harmful effect of nanomaterials on aquatic biota has been generating great concern among the scientific communities. Thus, they can interfere with the normal mechanisms of physiological activities. The present chapter focuses on the sources of the nanomaterials in the aquatic ecosystem, the route of exposure, their process of transformation and interactions, their possible toxicity to the aquatic biota, challenges posed by the nanomaterials, and prospects.

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“…2. Purification of the wastewater: the solar stills similar to water desalination are used for wastewater treatment such as dye degradation and heavy metal sorption (Brião et al 2020;Deng et al 2018;Higgins et al 2018;Kiriarachchi et al 2018;Kumar et al 2021;Lopes et al 2021;Peng and Guo, 2020;Soares et al 2020;Yawei Yang et al 2018a, b;Yuan et al 2020;P. Zhang et al 2018a, b).…”

Section: Scalable Applications Of Wood-based Solar Steam Generation D...mentioning

confidence: 99%

Interfacial solar steam generation by wood-based devices to produce drinking water: a review

et al. 2022

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Freshwater supply is declining in the context of climate change, pollution, and soil salinization, calling for sustainable meth-ods to produce drinking water. For instance, salt water can be converted into pure water by steam generation. Interfacial solar steam generation involves photoabsorbers consisting of a photothermal material with broad solar absorption and a porous substrate with a thermal insulating character. Nonetheless, scaling up of classical devices for interfacial solar steam genera-tion is actually limited by cost, biofilm formation, salt fouling, complicated fabrication processes, and toxicity. Alternatively, wood-based devices are cheap, biodegradable, abundant, and display high fluxes of evaporation compared with other non-biodegradable photoabsorbers. Here we review the design and applications of wood-based solar steam generation devices, with focus on wood structure and properties, different types of devices, and factors controlling the evaporative performance.

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Nanomaterials for remediation of contaminants: a review

Cited by 48 publications

References 199 publications

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

Toxicological Effects of Nanomaterials on the Aquatic Biota

Interfacial solar steam generation by wood-based devices to produce drinking water: a review

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