In recent years, Nanotechnology has emerged as an important area for providing
materials that are useful for water decontamination treatment process by optimizing
their properties like their hydrophobic and hydrophilic character, high toughness,
high strength and porosity (Liu et al. 2014a, b; Ray and Shipley 2015; Tauqeer et al.
2020; Mohammad et al. 2018a, b). Metal or metal oxide-based nanomaterials are
broad area of inorganic nanomaterials that are useful in removing different pollutants
from water/waste water. Various metals-based nanoparticles/nanomaterials like silver nanoparticles, gold nanoparticles, iron nanoparticles, etc., and metal oxide-based
nanoparticles/nanomaterials like, ferric oxides, titanium oxides, magnesium oxides,
zinc oxides, cerium oxides, etc. are useful in removing different pollutants. Several
applicable categories of metal and metal-oxide nanoparticles are used in various
applications such as, disinfection of bacteria, dye sensitized solar cells, heavy metals
decontamination, purification of air, self-cleaning and the most important is water
treatment (Fig. 3.1) (Khan et al. 2020; Yunus et al. 2012; Yaqoob et al. 2020;
Mohammad et al. 2018a, b).
This chapter reviews and highlights the recent findings on the use of metal and
metal oxide based nanoadsorbents for water/wastewater treatment. However, this
chapter represents comprehensive review of the important field using limited number
of examples. Variety of adsorbents based on metal and metal oxide nanomaterials
have been listed to the best of our efforts in a controllable manner and their recycling
by focusing on the challenges of future research.
Application of
Metal/Metal
Oxides
Nanoparticles
Treatment
of heavy
metals
Air
purification
Self
Cleaning
Removal
of organic
dyes
Disinfection
of bacteria
Water
Treatment
Fig. 3.1 Metal/metal oxide nanoparticles for various applications including water treatment
3 Metal and Metal Oxide Nanomaterials for Wastewater Decontamination
65
materials that are useful for water decontamination treatment process by optimizing
their properties like their hydrophobic and hydrophilic character, high toughness,
high strength and porosity (Liu et al. 2014a, b; Ray and Shipley 2015; Tauqeer et al.
2020; Mohammad et al. 2018a, b). Metal or metal oxide-based nanomaterials are
broad area of inorganic nanomaterials that are useful in removing different pollutants
from water/waste water. Various metals-based nanoparticles/nanomaterials like silver nanoparticles, gold nanoparticles, iron nanoparticles, etc., and metal oxide-based
nanoparticles/nanomaterials like, ferric oxides, titanium oxides, magnesium oxides,
zinc oxides, cerium oxides, etc. are useful in removing different pollutants. Several
applicable categories of metal and metal-oxide nanoparticles are used in various
applications such as, disinfection of bacteria, dye sensitized solar cells, heavy metals
decontamination, purification of air, self-cleaning and the most important is water
treatment (Fig. 3.1) (Khan et al. 2020; Yunus et al. 2012; Yaqoob et al. 2020;
Mohammad et al. 2018a, b).
This chapter reviews and highlights the recent findings on the use of metal and
metal oxide based nanoadsorbents for water/wastewater treatment. However, this
chapter represents comprehensive review of the important field using limited number
of examples. Variety of adsorbents based on metal and metal oxide nanomaterials
have been listed to the best of our efforts in a controllable manner and their recycling
by focusing on the challenges of future research.
Application of
Metal/Metal
Oxides
Nanoparticles
Treatment
of heavy
metals
Air
purification
Self
Cleaning
Removal
of organic
dyes
Disinfection
of bacteria
Water
Treatment
Fig. 3.1 Metal/metal oxide nanoparticles for various applications including water treatment
3 Metal and Metal Oxide Nanomaterials for Wastewater Decontamination
65