Adsorption

Removing of wastewater pollutants by novel adsorption techniques is urgent as they are continuously defiling the limited freshwater resources, seriously affecting the terrestrial, ecosystems, aquatic, and aerial flora and fauna. Emerging carbon nanotube (CNT)-based adsorbent materials are effective for efficient handling of wastewater pollutants. This chapter describes the mechanisms of CNT, and its forces to host the wastewater pollutants. Such details would help to considerably improve the performance of classical adsorbent technologies. Additionally, the functionalization of CNT and adsorption isotherms are considered as they have been significantly used for achieving maximum adsorption capacity and disclosing the adsorption phenomena of CNT, respectively. Some multifunctional CNT-based adsorbent are also discussed with reusability phenomena which need to be addressed before large-scale implementation of CNTs for water purification. Some suggestions and research clues are given to inform investigators of potentially disruptive CNT technologies and/or optimize the CNT sorption performances that have to be investigated in more detail