Surface Modification of Magnesium Ferrite Nanoparticles for Selective and Sustainable Remediation of Congo Red

2021 ◽  
Author(s):  
Supawitch Hoijang ◽  
Tanapong Kunakham ◽  
Jeeranan Nonkumwong ◽  
Kajornsak Faungnawakij ◽  
Supon Ananta ◽  
...  
Keyword(s):  
Surface Modification ◽  
Congo Red ◽  
Ferrite Nanoparticles ◽  
Magnesium Ferrite ◽  
Sustainable Remediation

Amine-Functionalized and Hydroxyl-Functionalized Magnesium Ferrite Nanoparticles for Congo Red Adsorption

2019 ◽  
Vol 2 (8) ◽  
pp. 5329-5341 ◽  
Author(s):  
Chattharika Aoopngan ◽  
Jeeranan Nonkumwong ◽  
Santi Phumying ◽  
Wilasinee Promjantuek ◽  
Santi Maensiri ◽  
...  
Keyword(s):  
Congo Red ◽  
Ferrite Nanoparticles ◽  
Magnesium Ferrite ◽  
Amine Functionalized

Synthesis and Characterization of Magnetic Magnesium Ferrite Nanoparticles Coupled with a Fluorescent Tb Complex

2016 ◽  
Vol 16 (8) ◽  
pp. 8482-8485 ◽  
Author(s):  
Long Giang Bach ◽  
Bui Thi Phuong Quynh ◽  
Vo Ngoc Thuan ◽  
Cao Xuan Thang ◽  
Kwon Taek Lim
Keyword(s):  
Ferrite Nanoparticles ◽  
Synthesis And Characterization ◽  
Magnesium Ferrite

scholarly journals Enhancement of the Congo Red Adsorption Capacity of Biochars by Surface Modification with MgCl2 Pretreatment

2020 ◽  
Vol 42 (10) ◽  
pp. 472-481
Author(s):  
Hee So Oh ◽  
Jae-Soo Chang
Keyword(s):  
Surface Modification ◽  
Adsorption Isotherm ◽  
Adsorption Capacity ◽  
Congo Red ◽  
Raw Materials ◽  
Physicochemical Characteristics ◽  
Pine Sawdust ◽  
Adsorption Capacities ◽  
Initial Ph ◽  
Surface Modified

Objectives : The physicochemical characteristics of Mg-biochar composites derived from kelp and pine after pretreatment with MgCl2 were analyzed, and their adsorption capacities for an anionic dye, Congo red (CR), were evaluated.Methods : After pretreating 60 g of kelp and pine sawdust in 1 L of 0.1 M MgCl2･6H2O, the raw materials were pyrolyzed at 500℃ to produce Mg-biochar composites (kelp based KB-Mg and pine based PB-Mg). The fundamental physicochemical characteristics of the Mg-biochar composites were examined, and their adsorption capacities for CR were investigated using different initial pH values, adsorption kinetic models, and adsorption isotherm models.Results and discussion : The Mg-biochar composites showed the development of uniform deposits of Mg minerals primarily as MgO crystal on the surface by the surface modification with MgCl2. When the pristine biochars were surface-modified with MgCl2, their adsorption capacities for CR were significantly increased over the entire pH range tested. The CR adsorption process by all biochars was best described with the pseudo-first order kinetics model, and the adsorption isotherm characteristics were better described with the Langmuir isotherm model for all biochars. The Langmuir maximum adsorption capacities for KB-Mg and PB-Mg were 423.0 mg/g and 394.7 mg/g, respectively. It is suggested that the main mechanism for CR adsorption on the Mg-biochars is electrostatic attraction between CR and the biochars.Conclusions : The results showed that surface modification with MgCl2 could greatly enhance the CR adsorption capacity of biochars, and the results demonstrated the great potential of KB-Mg and PB-Mg for CR removal.

Surface modification of ferrite nanoparticles with dicarboxylic acids for the synthesis of 5-hydroxymethylfurfural: a novel and green protocol

RSC Advances ◽  
2016 ◽  
Vol 6 (80) ◽  
pp. 76795-76801 ◽  
Author(s):  
Melad Shaikh ◽  
Mahendra Sahu ◽  
Kiran Kumar Atyam ◽  
Kalluri V. S. Ranganath
Keyword(s):  
Surface Modification ◽  
Dicarboxylic Acids ◽  
Ferrite Nanoparticles ◽  
Solvent Free ◽  
Green Protocol ◽  
Flexible Ligand ◽  
Solvent Free Conditions ◽  
Surface Modified

5-Hydroxymethylfurfural (5-HMF) has been synthesized under solvent free conditions using surface modified ferrite nanoparticles. The flexible ligand modified ferrites showed higher activity than rigid modified ferrites.

scholarly journals Facile surface modification of nickel ferrite nanoparticles for inherent multiple fluorescence and catalytic activities

RSC Advances ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 38-43 ◽  
Author(s):  
Souvanik Talukdar ◽  
Rupali Rakshit ◽  
André Krämer ◽  
Frank A. Müller ◽  
Kalyan Mandal
Keyword(s):  
Wastewater Treatment ◽  
Surface Modification ◽  
Nickel Ferrite ◽  
Cell Imaging ◽  
Ferrite Nanoparticles ◽  
Catalytic Activities ◽  
Nickel Ferrite Nanoparticles ◽  
Surface Modified

We have developed bio-compatible magneto-fluorescent NiFe2O4 nanoparticles (NPs) by modifying the surface of the NPs with Na-tartrate. The surface modified NiFe2O4 NPs are beneficial for cell imaging, wastewater treatment and therapeutics.

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