A situ co-precipitation method to prepare magnetic PMDA modified sugarcane bagasse and its application for competitive adsorption of methylene blue and basic magenta

Nanoscale zero-valent iron (nZVI) incorporated with nanomagnetic diatomite (DE) composite material was prepared for catalytic degradation of methylene blue (MB) in heterogeneous Fenton system. The material was constructed by two facile steps: Fe3O4 magnetic nanoparticles were supported on DE by chemical co-precipitation method, after which nZVI was incorporated into magnetic DE by liquid-phase chemical reduction strategy. The as-prepared catalyst was characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, magnetic properties measurement and nitrogen adsorption–desorption isotherm measurement. The novel nZVI@Fe3O4-diatomite nanocomposites showed a distinct catalytic activity and a desirable effect for degradation of MB. MB could be completely decolorized within 8 min and the removal efficiency of total organic carbon could reach to 90% after reaction for 1 h.

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In Situ Synthesis of a Stable Fe3O4@Cellulose Nanocomposite for Efficient Catalytic Degradation of Methylene Blue

Nanomaterials ◽

10.3390/nano9020275 ◽

2019 ◽

Vol 9 (2) ◽

pp. 275 ◽

Cited By ~ 9

Author(s):

Quan Lu ◽

Yanjuan Zhang ◽

Huayu Hu ◽

Wen Wang ◽

Zuqiang Huang ◽

...

Keyword(s):

Methylene Blue ◽

Fe3o4 Nanoparticles ◽

Catalytic Performance ◽

Catalytic Degradation ◽

Precipitation Method ◽

Regenerated Cellulose ◽

Practical Applications ◽

Fenton Catalyst ◽

Co Precipitation

To rapidly obtain a stable Fe3O4@cellulose heterogeneous Fenton catalyst, a novel in situ chemical co-precipitation method was developed. Compared with mechanical activation (MA)-pretreated cellulose (MAC), MA + FeCl3 (MAFC)-pretreated cellulose (MAFCC) was more easily dissolved and uniformly distributed in NaOH/urea solvent. MAFCC and MAC solutions were used as precipitators to prepare Fe3O4@MAFCC and Fe3O4@MAC nanocomposites, respectively. MAFCC showed stronger interaction and more uniform combination with Fe3O4 nanoparticles than MAC, implying that MAFC pretreatment enhanced the accessibility, reactivity, and dissolving capacity of cellulose thus, provided reactive sites for the in situ growth of Fe3O4 nanoparticles on the regenerated cellulose. Additionally, the catalytic performance of Fe3O4@MAFCC nanocomposite was evaluated by using for catalytic degradation of methylene blue (MB), and Fe3O4@MAC nanocomposite and Fe3O4 nanoparticles were used for comparative studies. Fe3O4@MAFCC nanocomposite exhibited superior catalytic activity for the degradation and mineralization of MB in practical applications. After ten cycles, the structure of Fe3O4@MAFCC nanocomposite was not significantly changed owing to the strong interaction between MAFCC and Fe3O4 nanoparticles. This study provides a green pathway to the fabrication of a stable nanocomposite catalyst with high catalytic performance and reusability for the degradation of organic pollutants.

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Photocatalytic Degradation of Methylene Blue and Methyl Orange with Fe-Doped ZnO Nanoparticles Modified with Natural Zeolite and Montmorillonite: Comparative Study

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1123.295 ◽

2015 ◽

Vol 1123 ◽

pp. 295-302 ◽

Cited By ~ 9

Author(s):

Nur Afifah ◽

Siti Adriani ◽

Nadia Febiana Djaja ◽

Rosari Saleh

Keyword(s):

Methylene Blue ◽

Methyl Orange ◽

Natural Zeolite ◽

Organic Dyes ◽

Uv Light ◽

Precipitation Method ◽

Resonance Spectroscopy ◽

X Ray ◽

Doped Zno ◽

Co Precipitation

The present study compares the photocatalytic decolorization ability of Fe-doped ZnO modified both natural zeolite and montmorillonite towards aqueous solution of organic dyes such as methylene blue and methyl orange under UV light irradiation. Both photocatalysts were synthesized using co-precipitation method and characterized by X-ray diffraction, energy dispersive X-ray, Fourier-transform infrared absorption, and electron spin resonance spectroscopy. The results showed that the photocatalytic efficiency is better in the presence of montmorillonite compared to natural zeolite.

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Decolorization of Methylene Blue by Photocatalyst in the Ag3PO4-AgI System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.970.29 ◽

2014 ◽

Vol 970 ◽

pp. 29-32 ◽

Cited By ~ 4

Author(s):

Pongsaton Amornpitoksuk ◽

Sumetha Suwanboon

Keyword(s):

Methylene Blue ◽

Mixed Phase ◽

Photocatalytic Properties ◽

Precipitation Method ◽

Blue Dye ◽

Methylene Blue Dye ◽

X Ray Diffraction ◽

X Ray ◽

Diffraction Patterns ◽

Co Precipitation

The co-effect of PO43- and I- on the formation of a heterosturucture photocatalyst in the Ag3PO4-AgI system was studied by the co-precipitation method between AgNO3 and the precipitating agent. The precipitating agent was prepared by varying the mole ratios between Na2HPO4 and KI. At 10 mol.% KI, the product showed the mixed phase between Ag3PO4 and un-identified phase. For 30 - 90 mol.% KI, the un-identified phase and AgI were detected in the x-ray diffraction patterns. The un-identified phase strongly adsorbed the methylene blue dye. The product prepared from 30 mol.% KI had the highest content of un-identified phase and also showed the highest degree of decolorization in the dark. The photocatalytic properties of products in this system were confirmed by the decolorization of methylene blue under visible illumination.

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Use of Fe(II)Fe(III)-LDHs prepared by co-precipitation method in a heterogeneous-Fenton process for degradation of Methylene Blue

Catalysis Today ◽

10.1016/j.cattod.2013.11.031 ◽

2014 ◽

Vol 224 ◽

pp. 41-48 ◽

Cited By ~ 41

Author(s):

Qian Wang ◽

Senlin Tian ◽

Jian Long ◽

Ping Ning

Keyword(s):

Methylene Blue ◽

Precipitation Method ◽

Fenton Process ◽

Heterogeneous Fenton ◽

Co Precipitation

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Perbandingan efektivitas dekolorisasi fotokatalitik metilen biru dan metil jingga menggunakan semikonduktor ZnO pada variasi pH

Jurnal Riset Kimia ◽

10.25077/jrk.v10i2.328 ◽

2019 ◽

Vol 10 (2) ◽

pp. 75-84

Author(s):

Yuly Kusumawati

Keyword(s):

Methylene Blue ◽

Methyl Orange ◽

Micropore Volume ◽

Hexagonal Structure ◽

Precipitation Method ◽

Particle Size Range ◽

Photocatalytic Decolorization ◽

Bet Isotherm ◽

Co Precipitation ◽

Zno Semiconductor

The comparison of photocatalytic decolorization of Methylene Blue and Methyl Orange using ZnO Semiconductor under UV-LED radiation has been studied at varied pH. ZnO have been synthesized using co-precipitation method. The Scanning Electron Microscopy (SEM) result showed that the synthesized ZnO has a hexagonal structure with the particle size range 0.125 to 0.5 µm. The BET isotherm characterization showed the synthesized ZnO has a specific surface area (SBET), mesoporous volume and micropore volume of 60.20 m2/g, 0.541 cm3/g and 0.02 cm3/g, respectively. The observation of the effect of pH to the photocatalytic activity showed that the highest removal percentage occurred at pH 9 with the value of 95.64% for methylene blue and occurred at pH 3 with the value of 6.236% for methyl orange.

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Improved photocatalytic activities of Cu x Co 0.5-x Ni 0.5 Fe 2 O 4 nanoparticles through co-precipitation method in degrading methylene blue

Physica E Low-dimensional Systems and Nanostructures ◽

10.1016/j.physe.2018.03.015 ◽

2018 ◽

Vol 101 ◽

pp. 29-37 ◽

Cited By ~ 15

Author(s):

Abdelmajid Lassoued ◽

Mohamed Saber Lassoued ◽

Brahim Dkhil ◽

Salah Ammar ◽

Abdellatif Gadri

Keyword(s):

Methylene Blue ◽

Precipitation Method ◽

Photocatalytic Activities ◽

Co Precipitation

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Preparation and Application of ZnFe2O4/α-Al2O3 for Photocatalytic Degradation of Methylene Blue Dye and Real Textile Effluent

Aceh International Journal of Science and Technology ◽

10.13170/aijst.8.2.12543 ◽

2019 ◽

Vol 8 (2) ◽

pp. 68-75

Author(s):

Abdulhamid Hamza ◽

Alhaji Saleh Zanna Umara ◽

Diya'uddeen Basheer Hasan

Keyword(s):

Methylene Blue ◽

Photocatalytic Degradation ◽

Oxygen Demand ◽

Textile Wastewater ◽

Precipitation Method ◽

Blue Dye ◽

Methylene Blue Dye ◽

Al2o3 Support ◽

Α Al2o3 ◽

Co Precipitation

Present work was aimed at the development of α-Al2O3 supported ZnFe2O4 visible-light responsive photocatalysts. ZnFe2O4 and α-Al2O3 supported ZnFe2O4 were synthesized using co-precipitation method followed by calcination at 500 °C. The synthesized photocatalysts were characterized using x-ray diffraction (XRD) and scanning electron microscopy (SEM). The synthesized ZnFe2O4 has low crystallinity. The particle size of ZnFe2O4 is much smaller than that of the α-Al2O3 support, and ZnFe2O4 particles are dispersed on the surface of the crystalline α-Al2O3 support. 30 wt % ZnFe2O4/α-Al2O3 exhibited the highest photocatalytic activity for degradation of methylene blue dye than ZnFe2O4 and other α-Al2O3 supported photocatalysts containing 10 wt%, 20 wt% and 40 wt% ZnFe2O4. Kinetics of photocatalytic degradation of methylene blue dye using 30 wt% ZnFe2O4/Al2O3 obeys Langmuir–Hinshelwood kinetic model. Photocatalytic treatment of real textile wastewater resulted in more effective (when compared to photolytic treatment) in the reduction of wastewater’s chemical oxygen demand (COD), pH, conductivity and total dissolved solids (TDS). 30 wt% ZnFe2O4/Al2O3 was found to be more effective than unsupported ZnFe2O4 for the reduction of wastewater’s COD, pH, conductivity and TDS.

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Photocatalytic Activity of ZnO Nanoparticles on the Degradation of Organic Dyes Under Solar Light

Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials ◽

10.4018/978-1-7998-8591-7.ch023 ◽

2021 ◽

pp. 514-536

Author(s):

Sivakumar Krishnamoorthy ◽

Dharani M.

Keyword(s):

Methylene Blue ◽

Photocatalytic Activity ◽

Organic Pollutants ◽

Rhodamine B ◽

Zno Nanoparticles ◽

Organic Dyes ◽

Preliminary Investigation ◽

Solar Light ◽

Precipitation Method ◽

Co Precipitation

Zinc oxide (ZnO) nanoparticles prepared using simple co-precipitation method are characterized and photocatalytic activity is tested on the degradation of methylene blue and rhodamine B organic pollutants. Morphological and structural properties of synthesized nanomaterial have been characterized using FESEM, EDAX spectroscopy, and XRD, while UV-visible DRS spectroscopy and photoluminescence have been used to understand their optical properties. The photocatalytic behaviour of synthesized nanoparticles was evaluated on the degradation of methylene blue (MB) and rhodamine B (RhB) organic pollutants under solar light irradiation. The highest degradation was achieved for MB (100%) over RhB (96%). Preliminary investigation shows the effective degradation of organic pollutants by ZnO nanoparticles.

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