Review Article

A Review of Removal of Pollutants from Water/Wastewater Using Different Types of Nanomaterials

Table 1

Examples of potential applications of nanotechnology in water/wastewater treatment.

ApplicationsExamples of nanomaterialsSome of novel properties

AdsorptionCNTs/nanoscale metal oxide and nanofibersHigh specific surface area and assessable adsorption sites, selective and more adsorption sites, short intraparticle diffusion distance, tunable surface chemistry, easy reuse, and so forth.

DisinfectionNanosilver/titanium dioxide (Ag/TiO2) and CNTsStrong antimicrobial activity, low toxicity and cost, high chemical stability ease of use, and so forth.

PhotocatalysisNano-TiO2 and Fullerene derivativesPhotocatalytic activity in solar spectrum, low human toxicity, high stability and selectivity, low cost, and so forth.

MembranesNano-Ag/TiO2/Zeolites/Magnetite and CNTs Strong antimicrobial activity, hydrophilicity low toxicity to humans, high mechanical and chemical stability, high permeability and selectivity, photocatalytic activity, and so forth.