NDLI: Integration of Cynodon dactylon and Muraya koenigii plant extracts in amino-functionalised silica-coated magnetic nanoparticle as an effective sorbent for the removal of chromium(VI) metal pollutants

Content Provider	IET Digital Library
Author	Vishnu, Dhanya Dhandapani, Balaji
Abstract	Immobilised magnetic nanoparticles are extensively used owing to their superparamagnetic nature, surface interaction, and binding specificity with the appropriate portentous substances. The present research focuses on the development of a portentous, robust carrier, which integrates the silica-coated amino-functionalised magnetic nanoparticle (AF-MnP) with the plant extracts of Cynodon dactylon (L1) and Muraya koenigii (L2) for the stable and enhanced removal of hazardous hexavalent chromium pollutant in the wastewater. Vibrating sample magnetometer (M s – 45 emu/g) determines the superparamagnetic properties; Fourier-transform infrared spectroscopy determines the presence of functional groups such as NH2, Si–O–Si, C=C; high-resolution transmission electron microscopy, field emission scanning electron microscope and energy-dispersive X-ray spectroscopy determine the size of the green adsorbents in the range of 20 nm and the presence of elements such as Fe, N, and Si determines the efficacy of the synthesised silica-coated AF-MnP. The AF-MnP-L1 shows the maximum adsorption capacity of 34.7 mg/g of sorbent calculated from the Langmuir isotherm model and the process follows pseudo-second-order kinetics. After treatment, the adsorbents can be easily separated from the solution in the presence of an external magnetic field and are reused for nine cycles after acid treatment with the minimal loss of adsorption efficiency.
Starting Page	449
Ending Page	456
Page Count	8
ISSN	17518741
Volume Number	14
e-ISSN	1751875X
Issue Number	Issue 6, Aug (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-nbt/14/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-nbt.2019.0313
Journal	IET Nanobiotechnology
Publisher Date	2020-06-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adsorption Adsorption And Desorption Kinetics Adsorption Capacity Amino-functionalised Silica-coated Magnetic Nanoparticle Amorphous And Nanostructured Magnetic Materials Chromium Chromium(VI) Metal Pollutants Cynodon Dactylon Electromagnetic Radiation Spectrometry (chemical Analysis) Energy-dispersive X-Ray Spectroscopy Environmental Issues Environmental Science Environmental Science Technology Evaporation And Condensation Field Emission Scanning Electron Microscopy Fine-particle Magnetic System Fourier Transform Infrared Spectra Fourier-transform Infrared Spectroscopy Functional Groups Green Adsorbents High-resolution Transmission Electron Microscopy Industrial Processes Infrared And Raman Spectra in Inorganic Crystal Iron Compound Langmuir Isotherm Model Magnetic Field Magnetic Particle Magnetic Property of Nanostructure Magnetometry Manganese Compound Muraya Koenigii Nanofabrication Nanomagnetics Nanoparticle Nanotube And Nanostructured Material Physical Chemistry Aspects of Chemical Technology Pseudo-second-order Kinetics Silicon Compound SiO2-MnP Size 20.0 Nm Sorption And Accommodation Coefficient Structure of Solid Clusters Superparamagnetic Nature Superparamagnetism Surface Chemistry Surface Interaction Transmission Electron Microscopy Vibrating Sample Magnetometer Wastewater Treatment Water X-Ray Chemical Analysis
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering Biotechnology

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