Resilient, mesoporous carbon nanotube-based strips as adsorbents of dilute organics in water

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

“…Duoni et al12b,65 reported the fabrication of a CNT‐alumina mixture as extruded strips to fabricate mesoporous CNT‐alumina strips (CASs) ( Figure a) with a higher mechanical strength of 126.73 N cm −1 than that of AC strips (97.46 N cm −1 3a) (Figure g). The extruded CASs formed a compact structure, which vastly reduced the material loss compared to that of pristine CNT powders.…”

“…On the other hand, MWCNTs can also be molded with organic binders, such as poly tetra fluoroethylene (PTFE) 3a,67. PTFE is a linear polymer that effectively wrapped around MWCNTs and interacted well to them.…”

“…c) 10 cycles of adsorption–desorption of CNT‐PTFE strips of o‐Cresol solution. Reproduced with permission 3a. Copyright 2018, Elsevier.…”

“…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.…”

“…Research on CNTs and graphene for wastewater treatment has involved the adsorption mechanism of the adsorbates on the CNTs or graphene, nanomaterial functionalization, and making composite adsorbents for different wastewater systems 3a,12. Some studies addressed the probability that CNTs or graphene with fixed quantities can be used infinitely for certain wastewater systems.…”