Large-scale synthesis of β-MnO2 nanorods and their rapid and efficient catalytic oxidation of methylene blue dye

2006 ◽  
Vol 7 (6) ◽  
pp. 408-412 ◽  
Author(s):  
Weixin Zhang ◽  
Zeheng Yang ◽  
Xue Wang ◽  
Yuancheng Zhang ◽  
Xiaogang Wen ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Catalytic Oxidation ◽  
Large Scale ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Large Scale Synthesis

scholarly journals Effect of the coordination of π-acceptor 4-cyanopyridine ligand on the structural and electronic properties of meso-tetra(para-methoxy) and meso-tetra(para-chlorophenyl) porphyrin cobalt(ii) coordination compounds. Application in the catalytic degradation of methylene blue dye

RSC Advances ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 6900-6918 ◽  
Author(s):  
Mouhieddinne Guergueb ◽  
Soumaya Nasri ◽  
Jihed Brahmi ◽  
Frédérique Loiseau ◽  
Florian Molton ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Cyclic Voltammetry ◽  
Electronic Properties ◽  
Catalytic Oxidation ◽  
Coordination Compounds ◽  
Molecular Structures ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
H Nmr ◽  
Structural And Electronic Properties

Preparation and UV/vis, IR, MS, 1H NMR, cyclic voltammetry and molecular structures of two new Co(ii) complexes with para-methoxy-phenyl and para-chloro meso-porphyrins and 4-cyanopyridine ligand (1–2). Catalytic oxidation data of MB dye using 1–2.

Large-scale dosimetry using dilute methylene blue dye in aqueous solution

1998 ◽  
Vol 52 (1-6) ◽  
pp. 539-542 ◽  
Author(s):  
A. Kovács ◽  
L. Wojnárovits ◽  
C. Kurucz ◽  
M. Al-Sheikhly ◽  
W.L. McLaughlin
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Large Scale ◽  
Blue Dye ◽  
Methylene Blue Dye

Efficient degradation of methylene blue dye by catalytic oxidation using the Na8Nb6O19·13H2O/H2O2 system

2011 ◽  
Vol 28 (4) ◽  
pp. 1126-1132 ◽  
Author(s):  
Chengtang Liu ◽  
Hui Xu ◽  
Huaming Li ◽  
Ling Liu ◽  
Li Xu ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Catalytic Oxidation ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
H2o2 System

Nanostructured vanadium-doped iron oxide: catalytic oxidation of methylene blue dye

2015 ◽  
Vol 39 (4) ◽  
pp. 3051-3058 ◽  
Author(s):  
Henrique S. Oliveira ◽  
Luiz C. A. Oliveira ◽  
Márcio C. Pereira ◽  
José D. Ardisson ◽  
Patterson P. Souza ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Catalytic Activity ◽  
Iron Oxide ◽  
Catalytic Oxidation ◽  
Blue Dye ◽  
Methylene Blue Dye

V-doped iron oxide exhibits remarkable catalytic activity for the oxidation of methylene blue with H2O2.

scholarly journals Eucheuma cottonii Seaweed-Based Biochar for Adsorption of Methylene Blue Dye

2020 ◽  
Vol 12 (24) ◽  
pp. 10318 ◽  
Author(s):  
Anwar Ameen Hezam Saeed ◽  
Noorfidza Yub Harun ◽  
Suriati Sufian ◽  
Ahmer Ali Siyal ◽  
Muhammad Zulfiqar ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Large Scale ◽  
Synthetic Wastewater ◽  
Blue Dye ◽  
Maximum Adsorption Capacity ◽  
Order Kinetic ◽  
Methylene Blue Dye ◽  
Adsorption Model ◽  
Solution Ph ◽  
Eucheuma Cottonii

Pollution from dye containing wastewater leads to a variety of environmental problems, which can destroy plant life and eco-systems. This study reports development of a seaweed-based biochar as an adsorbent material for efficient adsorption of methylene blue (MB) dye from synthetic wastewater. The Eucheuma cottonii seaweed biochar was developed through pyrolysis using a tube furnace with N2 gas, and the properties were later improved by sulfuric acid treatment. The adsorption studies were conducted in a batch experimental setup under initial methylene blue concentrations of 50 to 200 mg/L, solution pH of 2 to 10, and temperature of 25 to 75 °C. The characterization results show that the developed biochar had a mesoporous pore morphology. The adsorbent possessed the surface area, pore size, and pore volume of 640 m2/g, 2.32 nm, and 0.54 cm3/g, respectively. An adsorption test for 200 mg/L of initial methylene blue at pH 4 showed the best performance. The adsorption data of the seaweed-based biochar followed the Langmuir isotherm adsorption model and the pseudo-second-order kinetic model, with the corresponding R2 of 0.994 and 0.995. The maximum adsorption capacity of methylene blue using the developed seaweed‑based biochar was 133.33 mg/g. The adsorption followed the chemisorption mechanism, which occurred via the formation of a monolayer of methylene blue dye on the seaweed-based biochar surface. The adsorption performance of the produced seaweed biochar is comparable to that of other commercial adsorbents, suggesting its potential for large-scale applications.

Using of modified-bentonite as low-cost sorbent for removal of methylene blue dye from aqueous solution

2020 ◽  
Vol 27 (2) ◽  
pp. 45-54
Author(s):  
Saraa Muwafaq Ibrahim ◽  
Ziad T. Abd Ali
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Silanol Group ◽  
Infrared Spectrometry ◽  
Blue Dye ◽  
Ammonium Bromide ◽  
Vibration Band ◽  
Order Kinetic ◽  
Methylene Blue Dye ◽  
Modified Bentonite

Batch experiments have been studied to remove methylene blue dye (MB) from aqueous solution using modified bentonite. The modified bentonite was synthesized by replacing exchangeable calcium cations in natural bentonite with cationic surfactant cetyl trimethyl ammonium bromide (CTAB). The characteristics of modified bentonite were studied using different analysis such as Scanning electronic microscopy (SEM), Fourier transform infrared spectrometry (FTIR) and surface area. Where SEM shows the natural bentonite has a porous structure, a rough and uneven appearance with scattered and different block structure sizes, while the modified bentonite surface morphology was smooth and supplemented by a limited number of holes. On other hand, (FTIR) analysis that proved NH group aliphatic and aromatic group of MB and silanol group are responsible for the sorption of contaminate. The organic matter peaks at 2848 and 2930 cm-1 in the spectra of modified bentonite which are sharper than those of the natural bentonite were assigned to the CH2 scissor vibration band and the symmetrical CH3 stretching absorption band, respectively, also the 2930 cm-1 peak is assigned to CH stretching band. The batch study was provided the maximum removal efficiency (99.99 % MB) with a sorption capacity of 129.87 mg/g at specified conditions (100 mg/L, 25℃, pH 11 and 250rpm). The sorption isotherm data fitted well with the Freundlich isotherm model. The kinetic studies were revealed that the sorption follows a pseudo-second-order kinetic model which indicates chemisorption between sorbent and sorbate molecules.

Adsorption Studies of Methylene Blue Dye using Biosorbents

2018 ◽  
Vol 8 (3) ◽  
pp. 502-513
Author(s):  
Saravanan Narayanan ◽  
Rathika Govindasamy
Keyword(s):  
Methylene Blue ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Adsorption Studies

scholarly journals Characterization and use of a lignin sample extracted from Eucalyptus grandis sawdust for the removal of methylene blue dye

2021 ◽  
Vol 170 ◽  
pp. 375-389
Author(s):  
Alexandra Cemin ◽  
Fabrício Ferrarini ◽  
Matheus Poletto ◽  
Luis R. Bonetto ◽  
Jordana Bortoluz ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Eucalyptus Grandis ◽  
Blue Dye ◽  
Methylene Blue Dye
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