Application of Carbon Nanotubes for Removal of Fluoride from Wastewater

Atarodi, Homa; Faghihian, Hossein; Kooravand, Masoumeh

doi:10.1080/19430892.2012.738960

Cited by 2 publications

(3 citation statements)

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Section: Adsorption Mechanism Of Water/organics In Pure Cnts and Grapmentioning

confidence: 99%

“…There are no reports on graphene‐based composite strips or globules yet,6b probably owing to the high cost of graphene, which retards its application progress. Chun Wang et al investigated the regeneration of graphene‐based magnetic nanocomposite adsorbents.…”

Section: Engineering Progress For a Scalable Practical Applicationmentioning

confidence: 99%

“…Freshwater resources are currently scarce owing to not only the nonuniform distribution in different countries and regions but also water pollution by agricultural and industrial production. In general, there is a wide variety of contaminants, such as heavy metals, organics (such as bisphenol‐A, o‐Cresol, phenol, and tetracycline (TC), fluoride,1f,6 dyes, and radioactive substances). Among them, organic wastewater released by industrial concerns is responsible for nearly half of all the generated wastewater, which poses a great threat to human health and restricts the economic growth of both developing and developed countries.…”

Section: Introductionmentioning

confidence: 99%

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The Application of Carbon Nanotube/Graphene‐Based Nanomaterials in Wastewater Treatment

Yin

Cui

Chen

et al. 2019

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146

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The treatment of organic wastewater is of great significance. Carbon nanotube (CNT)/graphene‐based nanomaterials have great potential as absorbent materials for organic wastewater treatment owing to their high specific surface area, mesoporous structure, tunable surface properties, and high chemical stability; these attributes allow them to endure harsh wastewater conditions, such as acidic, basic, and salty conditions at high concentrations or at high temperatures. Although a substantial amount of work has been reported on the performance of CNT/graphene‐based nanomaterials in organic wastewater systems, engineering challenges still exist for their practical application. Herein, the adsorption mechanism of CNT‐ and graphene‐based nanomaterials is summarized, including the adsorption mechanism of CNTs and graphene at the atomic and molecular levels, their hydrophilic and hydrophobic surface properties, and the structure–property relationship required for adsorption to occur. Second, the structural modification and recombination methods of CNT‐ and graphene‐based adsorbents for various organic wastewater systems are introduced. Third, the engineering challenges, including the molding of macroscopically stable adsorbents, adsorption isotherm models and adsorption kinetic behaviors, and reversible adsorption performance compared to that of activated carbon (AC) are discussed. Finally, cost issues are discussed in light of scalable and practical application of these materials.

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Section: Adsorption Mechanism Of Water/organics In Pure Cnts and Grapmentioning

confidence: 99%

Section: Engineering Progress For a Scalable Practical Applicationmentioning

confidence: 99%