Surfactant-assisted nanorod synthesis of α-FeOOH and its adsorption characteristics for methylene blue

2014 ◽  
Vol 29 (4) ◽  
pp. 509-518 ◽  
Author(s):  
Jinhua Zhang ◽  
Xiaomeng Zhu ◽  
Kun Yu
Keyword(s):  
Methylene Blue ◽  
Adsorption Characteristics ◽  
Image Position ◽  
Surfactant Assisted

Abstract

Foam fractionation of ZnO crystal growth and its photocatalysis of the degradation of methylene blue

2012 ◽  
Vol 27 (19) ◽  
pp. 2503-2510 ◽  
Author(s):  
Shashi Bairagi Atla ◽  
Chien-Yen Chen ◽  
Chien-Cheng Chen ◽  
Shao-Ju Shih ◽  
Pin-Yun Lin ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Crystal Growth ◽  
Foam Fractionation ◽  
Zno Crystal ◽  
Image Position

Abstract

ZrO2/g-C3N4 with enhanced photocatalytic degradation of methylene blue under visible light irradiation

2014 ◽  
Vol 29 (20) ◽  
pp. 2473-2482 ◽  
Author(s):  
Yingchang Ke ◽  
Hongxu Guo ◽  
Dongfang Wang ◽  
Jianhua Chen ◽  
Wen Weng
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Image Position

Abstract

Surface properties and adsorption characteristics to methylene blue and iodine of adsorbents from sludge

2010 ◽  
Vol 62 (8) ◽  
pp. 1705-1712 ◽  
Author(s):  
L. Y. Deng ◽  
G. R. Xu ◽  
G. B. Li
Keyword(s):  
Methylene Blue ◽  
Electrostatic Interactions ◽  
Active Sites ◽  
Pyrolysis Temperature ◽  
Weight Ratio ◽  
Surface Characteristics ◽  
Wastewater Sludge ◽  
X Ray ◽  
Adsorption Characteristics ◽  
Adsorbent Surface

Adsorbent materials created from wastewater sludge have unique surface characteristics and could be effective in adsorption applications. In this research, the sludge-adsorbents were generated by pyrolyzing mixtures of sewage sludge and H2SO4. Scanning electron microscope (SEM), thermal analysis, X-ray diffraction (XRD) and X-ray photoelectron spectroscope (XPS) were used to analyze the properties of sludge-adsorbent. XPS results show that the adsorbent surface functional groups with high contents of oxygen-containing groups serve as active sites for the adsorption and affect the surface characteristics; the adsorption mechanism of methylene blue (MB) is mainly Brönsted acid-base reaction between the adsorbent surface and MB; and iodine atoms are bonded to the surface of the adsorbent mainly by dispersive interactions rather than by electrostatic interactions. The results also show that H2SO4 level, pyrolysis temperature and sulfuric acid/sludge weight ratio actually affected the adsorption characteristics. Using the conditions (H2SO4 level of 1–18 M, pyrolysis temperature of 650°C, and weight ratio of 0.8), the adsorption capacities for MB and iodine were 74.7–62.3 mg g−1 and 169.5–209.3 mg g−1, respectively.

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