Adsorption of methylene blue by porous ceramics prepared from electrolytic manganese residues

2016 ◽  
pp. 1-11 ◽  
Author(s):  
Fang-Fang Wu ◽  
Shuai Wang ◽  
Shuai-Yi Guo ◽  
Hong Zhong
Keyword(s):  
Methylene Blue ◽  
Porous Ceramics ◽  
Electrolytic Manganese

Hydroxylation of electrolytic manganese anode slime with EDTA-2Na and its adsorption of methylene blue

2021 ◽  
pp. 119526
Author(s):  
Pengxin Su ◽  
Qiuyue Wan ◽  
Yong Yang ◽  
Jiancheng Shu ◽  
Hongyuan Zhao ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Anode Slime ◽  
Electrolytic Manganese

Preparation of Iron-Oxide Coated Porous Ceramics Filter and Adsorption and Degradation on Methylene Blue

2010 ◽  
Vol 97-101 ◽  
pp. 1285-1289
Author(s):  
Fang Wen Li ◽  
Hai Wu Jia ◽  
Song Jiang Ma ◽  
Mei Ling Wu ◽  
Xiang Jiang Wu
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Iron Oxide ◽  
Porous Ceramics ◽  
Dip Coating ◽  
Ferric Nitrate ◽  
X Ray Diffraction ◽  
Average Pore ◽  
Prepared Material ◽  
And Performance

The aim of the present work is to obtain iron-oxide coated porous ceramics filter (IOCPCF) via dip-coating and test its adsorption and degradation for methylene blue (MB). Porous ceramics filter (PCF) and ferric nitrate were used as substrate and modifier respectively. IOCPCF was characterized by spectrophotometer, X-ray diffraction, scanning electron microscopy, specific analyzer and Fourier transform infrared spectroscopy. The effect of its structure and performance on adsorption and degradation of MB aqueous solution was investigated. The results indicated that the average pore diameter, specific surface area and porosity of IOCPCF were 11.36 nm, 4.987 m2/g and 58.63% respectively. The major crystalline phase of iron coat was α-Fe2O3 which took on porous framework. Using the prepared material, the decoloration conversion for MB aqueous solution can reach 72.06% in 300min and be increased by 21.59% compared with original PCF.

scholarly journals Utilization of both Electronical Manganese Slag and Silicate Tailings as Raw Materials for Fabrication of Cost-effective Porous Ceramics

2021 ◽  
Author(s):  
Hongfu Lin ◽  
Mengke Li ◽  
Zhiguo He ◽  
Hui Zhong ◽  
Liang Hu ◽  
...  
Keyword(s):  
Bulk Density ◽  
Bending Strength ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Cost Effective ◽  
Porous Ceramics ◽  
Waste Utilization ◽  
High Porosity ◽  
Electrolytic Manganese ◽  
Manganese Slag

Abstract Herein, porous wollastonite ceramics with high porosity and low density were successfully fabricated with silicate tailings and electrolytic manganese slag (MS) as primary raw materials. The influences of calcination temperature, SiC and MS addition amounts on porosity, water adsorption, pore distribution, bulk density and bending strength were systematically studied. The results showed that 0.4 wt% of SiC was optimal for the ceramic foaming at the sintering temperature of 1140 ℃. The addition of MS promoted the foaming of ceramic matrix at low temperature. The porosity of ceramics reduced from 78.4–63.7%, bulk density elevated from 0.96 to 1.13 g/cm3, and bending strength increased from 8.43 to 11.22 MPa as the MS increased from 8.33 wt% to 46.67 wt%. Moreover, the best corrosion resistance performance reached to 99.55% with 8.33 wt% MS content and sintering temperature of 1160 ℃. This work is of significance for the solid waste utilization.

Utilization of Electrolytic Manganese Residues in Production of Porous Ceramics

2015 ◽  
Vol 13 (3) ◽  
pp. 511-521 ◽  
Author(s):  
Fang-Fang Wu ◽  
Xue-Ping Li ◽  
Hong Zhong ◽  
Shuai Wang
Keyword(s):  
Porous Ceramics ◽  
Electrolytic Manganese

A SEM and Light Microscope Study of the Epidermal Leaf Structures of the Carnivorous Plant, Sarracenia purpurea, L.

1971 ◽  
Vol 29 ◽  
pp. 358-359
Author(s):  
B. J. Panessa ◽  
J. F. Gennaro
Keyword(s):  
Methylene Blue ◽  
Toluidine Blue ◽  
Outer Surface ◽  
Microscope Study ◽  
Light Microscope ◽  
Carnivorous Plant ◽  
Sarracenia Purpurea ◽  
Inner Surface

Tissue from the hood and sarcophagus regions were fixed in 6% glutaraldehyde in 1 M.cacodylate buffer and washed in buffer. Tissue for SEM was partially dried, attached to aluminium targets with silver conducting paint, carbon-gold coated(100-500Å), and examined in a Kent Cambridge Stereoscan S4. Tissue for the light microscope was post fixed in 1% aqueous OsO4, dehydrated in acetone (4°C), embedded in Epon 812 and sectioned at ½u on a Sorvall MT 2 ultramicrotome. Cross and longitudinal sections were cut and stained with PAS, 0.5% toluidine blue and 1% azure II-methylene blue. Measurements were made from both SEM and Light micrographs.The tissue had two structurally distinct surfaces, an outer surface with small (225-500 µ) pubescent hairs (12/mm2), numerous stoma (77/mm2), and nectar glands(8/mm2); and an inner surface with large (784-1000 µ)stiff hairs(4/mm2), fewer stoma (46/mm2) and larger, more complex glands(16/mm2), presumably of a digestive nature.

Microscopy of porous ceramics

1989 ◽  
Vol 47 ◽  
pp. 438-439
Author(s):  
H. M. Kerch ◽  
R. A. Gerhardt
Keyword(s):  
Porous Ceramics ◽  
Specimen Preparation ◽  
High Porosity ◽  
Ion Milling ◽  
Forming Process ◽  
Preparation Methods ◽  
Pore Texture ◽  
Proper Design ◽  
And Function ◽  
Function Information

Highly porous ceramics are employed in a variety of engineering applications due to their unique mechanical, optical, and electrical characteristics. In order to achieve proper design and function, information about the pore structure must be obtained. Parameters of importance include pore size, pore volume, and size distribution, as well as pore texture and geometry. A quantitative determination of these features for high porosity materials by a microscopic technique is usually not done because artifacts introduced by either the sample preparation method or the image forming process of the microscope make interpretation difficult.Scanning electron microscopy for both fractured and polished surfaces has been utilized extensively for examining pore structures. However, there is uncertainty in distinguishing between topography and pores for the fractured specimen and sample pullout obscures the true morphology for samples that are polished. In addition, very small pores (nm range) cannot be resolved in the S.E.M. On the other hand, T.E.M. has better resolution but the specimen preparation methods involved such as powder dispersion, ion milling, and chemical etching may incur problems ranging from preferential widening of pores to partial or complete destruction of the pore network.

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