Hydrothermal synthesis of tobermorite from diatomite and its adsorption performance for methylene blue

2015 ◽  
Vol 19 (sup2) ◽  
pp. S2-63-S2-69 ◽  
Author(s):  
Y. Zhang ◽  
Z. Jing ◽  
Y. Li ◽  
J. Fan ◽  
W. Kan
Keyword(s):  
Methylene Blue ◽  
Hydrothermal Synthesis ◽  
Adsorption Performance

Modification and adsorption performance of ultrafine iron matrix composite powder

2014 ◽  
Vol 21 (1) ◽  
pp. 39-47
Author(s):  
Li Zhang ◽  
Yao Ding ◽  
Yu-Juan Liu ◽  
Xi Zheng ◽  
Sheng-Li Liu
Keyword(s):  
Methylene Blue ◽  
Matrix Composite ◽  
Composite Powder ◽  
Milling Time ◽  
Removal Rate ◽  
Weight Ratio ◽  
Slurry Concentration ◽  
Adsorption Performance ◽  
Preparation Conditions ◽  
Optimum Parameters

AbstractUltrafine matrix composite powder was prepared from brown corundum slag, grinding balls, anhydrous ethanol, and modifier using a planetary ball mill. The adsorption material was used for dyeing wastewater treatment. A pH instrument, spectrophotometer, and digital water bath oscillator were used to study the amount of modifier, milling speed, milling time, ball-to-powder weight ratio, and slurry concentration to investigate the effects of preparation conditions on the adsorption performance of adsorbent material. The prepared adsorbents and activated carbon were used to adsorb methylene blue in solution under the same conditions to compare adsorbent dosage, adsorption time, temperature, pH of solution, and initial concentration of methylene blue and to study their effects on methylene blue decolorization rate. The experiment results show that dosage of R of 7.5%, ball-to-powder weight ratio of 14:1, rotational speed of 500 rpm, slurry concentration of 20%, and ball milling time of 2.5 h were the optimum parameters. The composite powder (4 g/l) was added to methylene blue wastewater (35 mg/l), pH was adjusted to 6, and adsorption was carried out for 0.5 h at 30°C. The removal rate reached 99.4%.

Experimental Study on the Adsorption of MB on Novel Photocatalyst Yeast/ZnS Hybrid Microspheres

2014 ◽  
Vol 924 ◽  
pp. 129-133
Author(s):  
Hai Gang Gou ◽  
Wei Sheng Guan ◽  
Li Yang ◽  
Zhao Qi Wang ◽  
Yang Zhi Zhu
Keyword(s):  
Experimental Study ◽  
Methylene Blue ◽  
Adsorption Capacity ◽  
Experimental Results ◽  
Yeast Cells ◽  
Isotherm Modeling ◽  
Adsorption Performance

Employing yeast cells as carriers,a novel cell-loaded photocatalyst yeast/ZnS (YC/ZnS) was successfully synthesized. The adsorption performance of methylene blue on the YC/ZnS microspheres was studied. Experimental results showed that the optimized adsorption conditions were 23°C,pH7 and the YC/ZnS dosage 4.5g/L. Under these conditions,the adsorption capacity of YC/ZnS could reach 471.2μg/g. Isotherm modeling revealed that Freundlich equations described well the adsorption of methylene blue onto YC/ZnS.

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