In Situ Photoelectrocatalytic Degradation Behavior of Methylene Blue on Nano-TiO[sub 2] Modified Electrode

2008 ◽  
Vol 155 (10) ◽  
pp. F213 ◽  
Author(s):  
Biquan Su ◽  
Yongjun Ma ◽  
Yongling Du ◽  
Chao Yang ◽  
Chunming Wang
Keyword(s):  
Methylene Blue ◽  
Modified Electrode ◽  
Degradation Behavior ◽  
Photoelectrocatalytic Degradation

Photoelectrocatalytic Degradation of Methylene Blue by TiO2 Nanotube Array Prepared by Anodic Oxidation

2009 ◽  
Vol 24 (4) ◽  
pp. 680-684 ◽  
Author(s):  
Yi CHEN ◽  
Li-Yi SHI ◽  
Shuai YUAN ◽  
Jun WU ◽  
Mei-Hong ZHANG ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Anodic Oxidation ◽  
Nanotube Array ◽  
Photoelectrocatalytic Degradation

scholarly journals Simultaneous Determination of Uric Acid and Xanthine Using a Poly(Methylene Blue) and Electrochemically Reduced Graphene Oxide Composite Film Modified Electrode

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Gen Liu ◽  
Wei Ma ◽  
Yan Luo ◽  
Deng-ming Sun ◽  
Shuang Shao
Keyword(s):  
Methylene Blue ◽  
Uric Acid ◽  
Graphene Oxide ◽  
Composite Film ◽  
Simultaneous Determination ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide

Poly(methylene blue) and electrochemically reduced graphene oxide composite film modified electrode (PMB-ERGO/GCE) was successfully fabricated by electropolymerization and was used for simultaneous determination of uric acid (UA) and xanthine (Xa). Based on the excellent electrocatalytic activity of PMB-ERGO/GCE, the electrochemical behaviors of UA and Xa were studied by cyclic voltammetry (CV) and square wave voltammetry (SWV). Two anodic sensitive peaks at 0.630 V (versus Ag/AgCl) for UA and 1.006 V (versus Ag/AgCl) for Xa were given by CV in pH 3.0 phosphate buffer. The calibration curves for UA and Xa were obtained in the range of 8.00 × 10−8~4.00 × 10−4 M and 1.00 × 10−7~4.00 × 10−4 M, respectively, by SWV. The detection limits for UA and Xa were3.00×10-8 M and5.00×10-8 M, respectively. Finally, the proposed method was applied to simultaneously determine UA and Xa in human urine with good selectivity and high sensitivity.

scholarly journals Fe3O4@C Nanoparticles Synthesized by In Situ Solid-Phase Method for Removal of Methylene Blue

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 330
Author(s):  
Hengli Xiang ◽  
Genkuan Ren ◽  
Yanjun Zhong ◽  
Dehua Xu ◽  
Zhiye Zhang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Solid Phase ◽  
Raw Materials ◽  
Phase Method ◽  
Maximum Adsorption Capacity ◽  
High Catalytic Activity ◽  
Solid Phase Reaction ◽  
Phase Reaction ◽  
High Concentrations

Fe3O4@C nanoparticles were prepared by an in situ, solid-phase reaction, without any precursor, using FeSO4, FeS2, and PVP K30 as raw materials. The nanoparticles were utilized to decolorize high concentrations methylene blue (MB). The results indicated that the maximum adsorption capacity of the Fe3O4@C nanoparticles was 18.52 mg/g, and that the adsorption process was exothermic. Additionally, by employing H2O2 as the initiator of a Fenton-like reaction, the removal efficiency of 100 mg/L MB reached ~99% with Fe3O4@C nanoparticles, while that of MB was only ~34% using pure Fe3O4 nanoparticles. The mechanism of H2O2 activated on the Fe3O4@C nanoparticles and the possible degradation pathways of MB are discussed. The Fe3O4@C nanoparticles retained high catalytic activity after five usage cycles. This work describes a facile method for producing Fe3O4@C nanoparticles with excellent catalytic reactivity, and therefore, represents a promising approach for the industrial production of Fe3O4@C nanoparticles for the treatment of high concentrations of dyes in wastewater.

scholarly journals In situ green synthesis of Cu nanoparticles supported on natural Natrolite zeolite for the reduction of 4‐nitrophenol, congo red and methylene blue

2017 ◽  
Vol 11 (5) ◽  
pp. 538-545 ◽  
Author(s):  
Mahmoud Nasrollahzadeh ◽  
S. Mohammad Sajadi ◽  
Mehdi Maham ◽  
Hamid Reza Dasmeh
Keyword(s):  
Methylene Blue ◽  
Green Synthesis ◽  
Congo Red ◽  
Cu Nanoparticles

The effect of aliphatic esters on the formation and degradation behavior of PLGA-based in situ forming system

2010 ◽  
Vol 66 (8) ◽  
pp. 1063-1073 ◽  
Author(s):  
A. Mashak ◽  
H. Mobedi ◽  
F. Ziaee ◽  
M. Nekoomanesh
Keyword(s):  
Degradation Behavior ◽  
In Situ Forming ◽  
Aliphatic Esters

scholarly journals Standard and modified electrode engineering-scale in situ vitrification tests

1992 ◽  
Author(s):  
L.E. Thompson ◽  
J.S. Tixier ◽  
R.G. Winkelman
Keyword(s):  
Modified Electrode
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