Perspectives and applications of nanotechnology in water treatment

Baruah, Sunandan; Khan, Muhammad Wasim; Dutta, Joydeep

doi:10.1007/s10311-015-0542-2

Cited by 119 publications

(33 citation statements)

References 125 publications

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“…and they contain several properties like mild oxidant, inertness to water and produce safe by-products [193]. (7). Now a days, many pollutants are present in water resources such as organics-based substances and even they present in trace amount which are very dangerous for human health.…”

Section: Applications Of Nanomaterialsmentioning

confidence: 99%

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Role of Nanomaterials in the Treatment of Wastewater: A Review

Yaqoob

Parveen

Umar

et al. 2020

Water

486

160

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Water is an essential part of life and its availability is important for all living creatures. On the other side, the world is suffering from a major problem of drinking water. There are several gases, microorganisms and other toxins (chemicals and heavy metals) added into water during rain, flowing water, etc. which is responsible for water pollution. This review article describes various applications of nanomaterial in removing different types of impurities from polluted water. There are various kinds of nanomaterials, which carried huge potential to treat polluted water (containing metal toxin substance, different organic and inorganic impurities) very effectively due to their unique properties like greater surface area, able to work at low concentration, etc. The nanostructured catalytic membranes, nanosorbents and nanophotocatalyst based approaches to remove pollutants from wastewater are eco-friendly and efficient, but they require more energy, more investment in order to purify the wastewater. There are many challenges and issues of wastewater treatment. Some precautions are also required to keep away from ecological and health issues. New modern equipment for wastewater treatment should be flexible, low cost and efficient for the commercialization purpose.

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Section: Applications Of Nanomaterialsmentioning

confidence: 99%

“…Moreover, researchers are still working by exploring different new technologies to improve water purification methods with low cost [5,6]. Newly, emerging field nanotechnology provides a potential offer to purify water with a low expense, high working efficiency in removing pollutants and reusable ability [7]. In past era, Table 1.…”

Section: Introductionmentioning

confidence: 99%

Role of Nanomaterials in the Treatment of Wastewater: A Review

Yaqoob

Parveen

Umar

et al. 2020

Water

486

160

View full text Add to dashboard Cite

show abstract

“…The field of nanotoxicology is still in its infant state and needs a lot of advancements. Most of the toxicity studies have been performed under standard conditions and the instrumental analysis takes natural interferences into account also (Baruah et al, 2016). The major challenges in econanotoxicity are toxicity assessment at functional level, detection and differentiation of nanomaterials from natural colloids, and tracking the nature of nanoparticles in the environment (Maurerjones et al, 2013).…”

Section: Limitations and Upcoming Challengesmentioning

confidence: 99%

Nanomaterials for removal of waterborne pathogens

Ojha

2020

Waterborne Pathogens

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“…It has long been an important issue how the energy of the sunlight can be effectively converted into chemical energy [1], and in recent years the interest in semiconductor oxide photocatalysts such as WO 3 , ZnO, and TiO 2 has grown exponentially [2]. These photocatalysts are widely used in water purification [3,4], decomposition of organic contaminants [5][6][7] or in the preparation of self-cleaning surfaces [8,9]. TiO 2 is the most widespread out of the semiconductor oxides in these fields, due to its low cost, good physical and chemical stability and being environmentally friendly.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytically Active Amorphous and Crystalline TiO2 Prepared by Atomic Layer Deposition

Kéri¹,

Kócs²,

Hórvölgyi³

et al. 2019

Period. Polytech. Chem. Eng.

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In this work, the photocatalytic properties of amorphous and crystalline TiO2 deposited on oxide and polymer nanoparticles by atomic layer deposition (ALD) were studied. Beside TiO2, as reference, both ALD grown amorphous Al2O3 and crystalline ZnO layers were also examined. When choosing the carrier, the priority was that it had no effect on the photocatalytic activity of TiO2; therefore the oxide layers were deposited on SiO2 and poly(methyl-methacrylate) (PMMA) nanoparticles. The amorphous SiO2 particles were synthetized by the Stöber method, while the PMMA particles were prepared by emulsion polymerization. Both the bare and core/shell composite nanoparticles were investigated by SEM-EDX, TEM, FT-IR, and XRD. Finally, the photocatalytic activity of PMMA, SiO2 and the core/shell nanoparticles was measured by the decomposition of methylene orange, monitored by UV-Vis spectroscopy. Based on the results, the SiO2 was uniformly coated with the deposited oxide films, while in the case of the PMMA a contiguous web-like polymer/TiO2 matrix was formed. During the photocatalytic reactions, the amorphous Al2O3 was not active, while the crystalline ZnO and TiO2 showed good photocatalytic activity. The amorphous TiO2 deposited by ALD on the SiO2 and PMMA nanoparticles had smaller, but a clearly detectable photocatalytic effect on the photodegradation of methylene orange.

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Perspectives and applications of nanotechnology in water treatment

Cited by 119 publications

References 125 publications

Role of Nanomaterials in the Treatment of Wastewater: A Review

Role of Nanomaterials in the Treatment of Wastewater: A Review

Nanomaterials for removal of waterborne pathogens

Photocatalytically Active Amorphous and Crystalline TiO2 Prepared by Atomic Layer Deposition

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