Review on advances in photocatalytic water disinfection utilizing graphene and graphene derivatives-based nanocomposites

Dutta, Vishal; Singh, Pardeep; Shandilya, Pooja; Sharma, Sheetal; Raizada, Pankaj; Saini, Adesh K.; Gupta, Vinod Kumar; Hosseini-Bandegharaei, Ahmad; Agarwal, Shipli; Rahmani-Sani, Abolfazl

doi:10.1016/j.jece.2019.103132

Cited by 111 publications

(39 citation statements)

References 195 publications

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“…The literature reports that thermally reduced graphene oxide has bacteriostatic and bactericidal properties [3,[31][32][33]. The destruction of bacterial cells occurs as a result of physical and The obtained results of the separation properties of rGO/PAN composite membranes have shown that a small addition of rGO results in good separation of protein molecules without significantly reducing the liquid flow through the membrane.…”

Section: Biocidal Properties Of Rgo Solutions and Biostatic Propertiementioning

confidence: 99%

“…Analyzing the apparent density values for all membranes obtained (Table 2), it can be seen that the pure PAN membrane has a density of 0.170 g/cm 3 . In the case of rGO/PAN membranes, it can be noticed that with the addition of rGO to the polymer matrix (membranes: A, B, C, D), the density of membranes drops to 0.140 g/cm 3 for membrane D. This is due to their low mass per unit area and high porosity.…”

Section: Membrane Characteristicsmentioning

confidence: 99%

Section: Biocidal Properties Of Rgo Solutions and Biostatic Propertiementioning

confidence: 99%

“…The commonly used chemical disinfectants for water include: chlorine, ozone, and chloramines [1]. Physical methods of water disinfection include: boiling, pasteurization and ultraviolet exposure [2], the use of ultrasound or gamma radiation, as well as ultrafiltration [3]. Ultrafiltration is one of pressure membrane processes that employ various types of polymeric membranes.…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Graphene Addition on the Properties of Composite rGO/PAN Membranes and Their Potential Application for Water Disinfection

et al. 2020

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The paper presents a method of obtaining composite polyacrylonitrile-based (PAN) membranes with the addition of reduced graphene oxide (rGO). The membranes were obtained using phase inversion method from a homogeneous rGO dispersion in a solution of PAN dissolved in N, N-dimethylformamide (DMF). The impact of the amount of rGO addition to the PAN matrix on the physicochemical, structural, transport, and separation properties and on fouling resistance was studied. Composite membranes, due to the method of preparation used and the addition of rGO, are characterized by very good transport properties (~390 L/m2 h) and by a high degree of protein retention (85%). Reduced graphene oxide has biocidal properties, which, as we have shown, depend on the size of nanoparticles and the type of microorganism. rGO/PAN membranes, on the other hand, show biostatic properties against Gram-negative bacteria (Escherichia coli), Gram-positive bacteria (Staphylococcuc aureus) and fungi (Candida albicans). Thus, the obtained composite membranes can be potentially used in water disinfection.

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Section: Biocidal Properties Of Rgo Solutions and Biostatic Propertiementioning

confidence: 99%

Section: Membrane Characteristicsmentioning

confidence: 99%

Section: Biocidal Properties Of Rgo Solutions and Biostatic Propertiementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Influence of Graphene Addition on the Properties of Composite rGO/PAN Membranes and Their Potential Application for Water Disinfection

et al. 2020

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“…The fullerene C 60 is reported to demonstrate good antimicrobial activities against Escherichia coli and Bacillus subtilis by oxidative stress. Further, the nanomaterials graphene as well as graphene oxide show prodigious opportunities in water disinfecting processes in the composite forms of these nanomaterials with different metal and metal oxides [ 144 , 145 ]. Reduced-graphene oxide also demonstrates an excellent antimicrobial feature that inhibits the growth of bacteria, thereby delaying the biofilm development on the surface of the filter [ 146 ].…”

Section: Application Of Nanomaterials In the Aqueous Environmentmentioning

confidence: 99%

Developments in the Application of Nanomaterials for Water Treatment and Their Impact on the Environment

2020

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Nanotechnology is an uppermost priority area of research in several nations presently because of its enormous capability and financial impact. One of the most promising environmental utilizations of nanotechnology has been in water treatment and remediation where various nanomaterials can purify water by means of several mechanisms inclusive of the adsorption of dyes, heavy metals, and other pollutants, inactivation and removal of pathogens, and conversion of harmful materials into less harmful compounds. To achieve this, nanomaterials have been generated in several shapes, integrated to form different composites and functionalized with active components. Additionally, the nanomaterials have been added to membranes that can assist to improve the water treatment efficiency. In this paper, we have discussed the advantages of nanomaterials in applications such as adsorbents (removal of dyes, heavy metals, pharmaceuticals, and organic contaminants from water), membrane materials, catalytic utilization, and microbial decontamination. We discuss the different carbon-based nanomaterials (carbon nanotubes, graphene, graphene oxide, fullerenes, etc.), and metal and metal-oxide based nanomaterials (zinc-oxide, titanium dioxide, nano zerovalent iron, etc.) for the water treatment application. It can be noted that the nanomaterials have the ability for improving the environmental remediation system. The examination of different studies confirmed that out of the various nanomaterials, graphene and its derivatives (e.g., reduced graphene oxide, graphene oxide, graphene-based metals, and graphene-based metal oxides) with huge surface area and increased purity, outstanding environmental compatibility and selectivity, display high absorption capability as they trap electrons, avoiding their recombination. Additionally, we discussed the negative impacts of nanomaterials such as membrane damage and cell damage to the living beings in the aqueous environment. Acknowledgment of the possible benefits and inadvertent hazards of nanomaterials to the environment is important for pursuing their future advancement.

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Increment in Photocatalytic Activity of g‐C ₃ N ₄ Coupled Sulphides and Oxides for Environmental Remediation

Raizada

Kumar

Singh

2020

Layered 2D Advanced Materials and Their Allied Applications

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Review on advances in photocatalytic water disinfection utilizing graphene and graphene derivatives-based nanocomposites

Cited by 111 publications

References 195 publications

The Influence of Graphene Addition on the Properties of Composite rGO/PAN Membranes and Their Potential Application for Water Disinfection

The Influence of Graphene Addition on the Properties of Composite rGO/PAN Membranes and Their Potential Application for Water Disinfection

Developments in the Application of Nanomaterials for Water Treatment and Their Impact on the Environment

Increment in Photocatalytic Activity of g‐C ₃ N ₄ Coupled Sulphides and Oxides for Environmental Remediation

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Review on advances in photocatalytic water disinfection utilizing graphene and graphene derivatives-based nanocomposites

Cited by 111 publications

References 195 publications

The Influence of Graphene Addition on the Properties of Composite rGO/PAN Membranes and Their Potential Application for Water Disinfection

The Influence of Graphene Addition on the Properties of Composite rGO/PAN Membranes and Their Potential Application for Water Disinfection

Developments in the Application of Nanomaterials for Water Treatment and Their Impact on the Environment

Increment in Photocatalytic Activity of g‐C 3 N 4 Coupled Sulphides and Oxides for Environmental Remediation

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Increment in Photocatalytic Activity of g‐C ₃ N ₄ Coupled Sulphides and Oxides for Environmental Remediation