Graphene: A Reusable Substrate for Unprecedented Adsorption of Pesticides

Maliyekkal, Shihabudheen M.; Sreeprasad, T. S.; Krishnan, Deepti; Kouser, Summayya; Mishra, Abhishek Kumar; Waghmare, Umesh V.; Pradeep, Thalappil

doi:10.1002/smll.201201125

Cited by 205 publications

(98 citation statements)

References 60 publications

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“…The maximum adsorption capacities of p-toluenesulfonic acid (p-TA), 1-naphthalenesulfonic acid (1-NA) and MB on GNS reach up to 1430, 1460 and 1520 mg g -1 at 303 K, respectively, which are the highest among all nanomaterials studied in this field to date [108]. The observed adsorption capacities for the adsorption of three types of pesticides [chlorpyrifos (CP), endosulfan (ES), and malathion (ML)] onto GONSs and rGONSs from water are as high as 1200, 1100 and 800 mg g -1 , respectively, and GONSs and rGONSs were unprecedented substrates for these adsorption technologies [109].…”

Section: Carbon Nanotubes (Cnts)mentioning

confidence: 97%

The role of nanomaterials as effective adsorbents and their applications in wastewater treatment

et al. 2017

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Nanomaterials have been extensively studied for heavy metal ions and dye removals from wastewater. This article reviews the role of nanomaterials as effective adsorbents for wastewater purification. In recent years, numerous novel nanomaterial adsorbents have been developed for enhancing the efficiency and adsorption capacities of removing contaminants from wastewater. The innovation, forthcoming development, and challenges of cost-effective and environmentally acceptable nanomaterials for water purification are discussed and reviewed in this article. This review concludes that nanomaterials have many unique morphological and structural properties that qualify them to be used as effective adsorbents to solve several environmental problems. Graphical Abstract& Hamidreza Sadegh

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Section: Carbon Nanotubes (Cnts)mentioning

confidence: 97%

The role of nanomaterials as effective adsorbents and their applications in wastewater treatment

et al. 2017

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“…5 GO is highly catalytic, highly solvable in water and other solvents, and is proposed for use as a gas sensor. 14 GO has been suggested as a material for use in filtering of toxic compounds, 15,16 such as chlorinated hydrocarbon compounds. These are some of today's environmental concerns, since they are toxic to both humans and other mammals, and exposure is hard to avoid.…”

Section: Introductionmentioning

confidence: 99%

Graphene oxide and adsorption of chloroform: A density functional study

Kuisma

Hansson

Lindberg

et al. 2016

The Journal of Chemical Physics

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Chlorinated hydrocarbon compounds are of environmental concerns, since they are toxic to humans and other mammals, are widespread, and exposure is hard to avoid. Understanding and improving methods to reduce the amount of the substances is important. We present an atomic-scale calculational study of the adsorption of chlorine-based substance chloroform (CHCl 3 ) on graphene oxide, as a step in estimating the capacity of graphene oxide for filtering out such substances, e.g., from drinking water. The calculations are based on density functional theory (DFT), and the recently developed consistent-exchange functional for the van der Waals density-functional method (vdW-DF-cx) is employed. We obtain values of the chloroform adsorption energy varying from roughly 0.2 to 0.4 eV per molecule. This is comparable to previously found results for chloroform adsorbed directly on clean graphene, using similar calculations. In a wet environment, like filters for drinking water, the graphene will not stay clean and will likely oxidize, and thus adsorption onto graphene oxide, rather than clean graphene, is a more relevant process to study.

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“…This is due to the two-dimensional layer structure, large surface area, pore volume and presence of surface functional groups in these materials. [27][28][29][30][31] The inorganic nanoparticles present in 2D graphene nanocomposites prevent graphene aggregation, as such a high surface area and pore volume can be maintained. 3D reduced graphene oxide (rGO) composite materials have also been employed as adsorbents for water purication; these materials have been shown to be effective in the removal of dyes as well as other organic contaminants.…”

Section: Water Remediation By Adsorptionmentioning

confidence: 99%

Environmental applications using graphene composites: water remediation and gas adsorption

et al. 2013

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This review deals with wide-ranging environmental studies of graphene-based materials on the adsorption of hazardous materials and photocatalytic degradation of pollutants for water remediation and the physisorption, chemisorption, reactive adsorption, and separation for gas storage. The environmental and biological toxicity of graphene, which is an important issue if graphene composites are to be applied in environmental remediation, is also addressed.

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Graphene: A Reusable Substrate for Unprecedented Adsorption of Pesticides

Cited by 205 publications

References 60 publications

The role of nanomaterials as effective adsorbents and their applications in wastewater treatment

The role of nanomaterials as effective adsorbents and their applications in wastewater treatment

Graphene oxide and adsorption of chloroform: A density functional study

Environmental applications using graphene composites: water remediation and gas adsorption

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