Preparation of Modified Graphene Oxide Nanomaterials for Water and Wastewater Treatment

Pan, Gaofeng; Wang, Ling; Song, Shijian; Xu, Zhi‐Kang; Fu, Dejun; Zhang, Guoliang

doi:10.1088/1755-1315/170/3/032074

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…CNT -Si (p-n) heterojunction-based solar cells have been designed resulting in excellent conductive and transparent films. In addition to this, CNTs with n-type gallium arsenide (n-GaAs) has also been reported with better efficiency of 3.8% for green laser and desk lamp [79]. CNTs have also been widely exploited energy storage devices working on the principles of electrochemical double-layer capacitors (EDLCs) like ultracapacitors [80].…”

Section: Classification Of Carbon Nanomaterials Based On Their Dimensmentioning

confidence: 99%

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Carbon Nanomaterials for the Treatment of Heavy Metal-Contaminated Water and Environmental Remediation

2019

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Nanotechnology is an advanced field of science having the ability to solve the variety of environmental challenges by controlling the size and shape of the materials at a nanoscale. Carbon nanomaterials are unique because of their nontoxic nature, high surface area, easier biodegradation, and particularly useful environmental remediation. Heavy metal contamination in water is a major problem and poses a great risk to human health. Carbon nanomaterials are getting more and more attention due to their superior physicochemical properties that can be exploited for advanced treatment of heavy metal-contaminated water. Carbon nanomaterials namely carbon nanotubes, fullerenes, graphene, graphene oxide, and activated carbon have great potential for removal of heavy metals from water because of their large surface area, nanoscale size, and availability of different functionalities and they are easier to be chemically modified and recycled. In this article, we have reviewed the recent advancements in the applications of these carbon nanomaterials in the treatment of heavy metal-contaminated water and have also highlighted their application in environmental remediation. Toxicological aspects of carbon-based nanomaterials have also been discussed.

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Section: Classification Of Carbon Nanomaterials Based On Their Dimensmentioning

confidence: 99%

“…The designed rGO-TiO2 photocatalyst was successfully applied for the refractory dye named Alizarin Red S (ARS) [133]. In other studies, graphene oxide fabricated with TiO 2 and ZnO exhibited much photodegradation of methylene blue as compared to TiO 2 /ZnO alone [79, 80].…”

Section: Classification Of Carbon Nanomaterials Based On Their Dimensmentioning

confidence: 99%

Carbon Nanomaterials for the Treatment of Heavy Metal-Contaminated Water and Environmental Remediation

2019

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“…In the field of water treatment, photocatalysis is a process in which the organic pollutants are decomposed in the presence of a photocatalyst under the light irradiation [10,11]. Currently, the photocatalytic activity of the most frequently used catalysts has been improved using graphene to mitigate their limitations in terms of large bandgap energy and fast rate of recombination of photogenerated species along with sustainable performance in the harsh conditions and durability [12,13,14]. In these modified photocatalysts, graphene plays essential roles while irradiation.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of zinc oxide nanorods on the photocatalytic performance and the biological activity of graphene nano sheets

Ghanem

Badawy

Mohram

et al. 2020

Heliyon

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In this work, decoration of the graphene surface with 5 wt. % ZnO nanorods (ZnO NRs), to ensure the potential photocatalytic performance of the formed nanocomposites, is demonstrated. Graphene oxide (GO) was synthesized with Hummer method followed by reduction to give reduced graphene oxide (RGO). The adjustable nanocompositing exhibited long-sought workability not only in in-situ incorporation of nanorods while reduction of graphene oxide (IZG) but also in ex-situ mixing of RGO or GO with the nanorods, (EZG) and (ZGO) respectively. The demineralization of synthetic wastewater has been evaluated by chemical oxygen demand and the obtained nanocomposites possess enhanced photocatalytic activities with 30 % and 35% over pure RGO and GO, respectively. This higher efficiency could be attributed to the synergistic effect between ZnO and the planner structure of graphene sheets which developed unprecedented polycrystalline structure. Also, the results proved that even the RGO or GO have played a dual function in photocatalysis, adsorption, and degradation. Also, the bactericidal effect of the prepared samples was studied against deleterious microorganisms. The findings of this work pave the way for the new generation of highly efficient photocatalysts based graphene with economic attraction and environmental impact.

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Nanomaterials-Based Chemical Sensing

Joseph

Balachandran

2022

Nanotechnology for Electronic Applications

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Preparation of Modified Graphene Oxide Nanomaterials for Water and Wastewater Treatment

Cited by 5 publications

References 20 publications

Carbon Nanomaterials for the Treatment of Heavy Metal-Contaminated Water and Environmental Remediation

Carbon Nanomaterials for the Treatment of Heavy Metal-Contaminated Water and Environmental Remediation

Synergistic effect of zinc oxide nanorods on the photocatalytic performance and the biological activity of graphene nano sheets

Nanomaterials-Based Chemical Sensing

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