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Natural Polymer-Based Nanocomposite Hydrogels as Environmental Remediation Devices

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Handbook of Green and Sustainable Nanotechnology

Abstract

The exceptional physical and chemical characteristics of nanoparticles (enhanced reactivity, high surface to volume ratio, unique surface chemistry) have been providing innovatory solutions to an array of environmental issues. The traditional hydrogels of biopolymers (starch, cellulose, chitosan, alginate, gums, dextran, pectin, carrageenan, etc.) provide hydrophilic materials with three-dimensional network and porosity. The combination of hydrogel and nanoparticles through a particular synthesis method could enhance the characteristics (physical, chemical, biological) of the resulting material which are not feasible to achieve individually. Nanocomposite hydrogels are nanoparticles- incorporated polymeric networks formed by inclusion of nanoparticles into the hydrogels and exhibit higher strength as well as flexibility. The different types of nanoparticles (inorganic, carbon based, polymeric) have been assimilated into several hydrogels originated from natural polymers. Further, the applications of nanocomposites for environmental remediation (as chemical sensors, adsorbents, and photo catalysts) depend upon the nature of nanoparticles integrated into the hydrogel matrix. The size, morphology, chemical composition, and functionalization of nanoparticles could be easily tuned to improve their selectivity and performance. The eco-friendly nanocomposite hydrogels could provide potential scavengers for the adsorption of heavy metals and synthetic organic compounds including dyes, halogenated compounds, herbicides, and insecticides. Further, they have application prospects as soil conditioners and ion exchangers. The chapter addresses the synthesis, characteristics of biopolymer- based nanocomposite hydrogels, and their promising applications as environmental remediation devices

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Abbreviations

Ag-NPs:

Silver nanoparticles

APT:

Atomically precise technology

Au-NPs:

Gold nanoparticles

BCAm:

Benzo-18-crown-6-acrylamide

BET:

Brunauer-Emmett-Teller analysis

CLSM:

Confocal laser scanning microscopy

CNTs:

Carbon nanotubes

CQDs:

Carbon quantum dots

CRG:

κ-Carrageenan

CS:

Chitosan

Cu-NPs:

Copper nanoparticles

CVD:

Chemical vapor deposition

DETA:

Diethylenetriamine

DLS:

Dynamic light scattering

DNA:

Deoxyribonucleic acid

DOX:

Doxorubicin

DSC:

Differential scanning calorimetry

FTIR:

Fourier transform infrared

GC-MS:

Gas chromatography – mass spectrometry

GO:

Graphene oxide

HPLC:

High-performance liquid chromatography

IBM:

International business machines corporation

IPN:

Interpenetrating network

LCST:

Lower critical solution temperature

LDA:

Laser Doppler anemometry

MWNTs:

Multi-walled nanotubes

NCHs:

Nanocomposite hydrogels

NCs:

Nanocomposites

NMR:

Nuclear magnetic resonance

NMs:

Nanomaterials

PAA:

Polyacrylic acid

PAAm:

Polyacrylamide

PCs:

Personal computers

PCS:

Photon correlation spectroscopy

PNIPAM:

Poly (N-isopropyl acrylamide)

PVP:

Polyvinyl pyrrolidone

RAFT:

Reversible addition fragmentation chain transfer

RNA:

Ribonucleic acid

SA-CMBC:

Sodium alginate/carboxymethyl bacterial cellulose hydrogels

SAPs:

Superabsorbent polymers

SEM:

Scanning electron microscope

SH:

Starch based hydrogels

SPS:

Spark plasma sintering

SRGs:

Surface relief gratings

STM:

Scanning tunneling microscope

SWNTs:

Single-walled nanotubes

TEM:

Transmission electron microscope

TGA:

Thermogravimetric analysis

UCST:

Upper critical solution temperature

USB:

Universal serial bus

UV:

Ultraviolet

XRD:

X-ray powder diffraction

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Correspondence to Sapna Sethi or Sadhika Khullar .

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Sethi, S., Singh, A., Medha, Thakur, S., Kaith, B.S., Khullar, S. (2022). Natural Polymer-Based Nanocomposite Hydrogels as Environmental Remediation Devices. In: Shanker, U., Hussain, C.M., Rani, M. (eds) Handbook of Green and Sustainable Nanotechnology. Springer, Cham. https://doi.org/10.1007/978-3-030-69023-6_100-1

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  • DOI: https://doi.org/10.1007/978-3-030-69023-6_100-1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-69023-6

  • Online ISBN: 978-3-030-69023-6

  • eBook Packages: Springer Reference Chemistry and Mat. ScienceReference Module Physical and Materials ScienceReference Module Chemistry, Materials and Physics

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