scholarly journals The Influence of pH and Halide Ions on Cefuroxime Electrochemical Degradation

2022 ◽  
pp. ArticleID:220123
Author(s):  
Bogdan Tutunaru ◽  
Keyword(s):  
Halide Ions ◽  
Electrochemical Degradation ◽  
Influence Of Ph

scholarly journals Induced Effect of Gold Nanoparticles (AuNPs) and Halide Ions on Pyridoxine Molecule Stability

2021 ◽  
Vol 11 (20) ◽  
pp. 9470
Author(s):  
Bogdan Tutunaru ◽  
Adriana Samide ◽  
Cezar-Ionuț Spînu ◽  
Cristian Tigae ◽  
Bogdan Oprea
Keyword(s):  
Gold Nanoparticles ◽  
Cyclic Voltammetry ◽  
Electrochemical Behavior ◽  
Vitamin B6 ◽  
Experimental Results ◽  
Strong Interactions ◽  
Halide Ions ◽  
Electrochemical Degradation ◽  
Fluoride Ions ◽  
Direct Mechanism

The electrochemical behavior of pyridoxine was studied in 0.1 mol × L−1 NaX (X = F, Cl, Br) support electrolyte on a gold electrode using cyclic voltammetry and UV–Vis spectrophotometry. The influence of gold nanoparticles (AuNPs) on the electrochemical behavior of pyridoxine was studied. The experimental results obtained by both cyclic voltammetry and UV–Vis spectrophotometry indicate strong interactions in the B6 and NaBr/NaCl_AuNP systems, while in the NaF_B6_AuNP ternary system the results indicate a mechanism of direct electrochemical degradation of vitamin B6. The experimental results obtained for the electrochemical degradation of pyridoxine, in the presence of chloride and bromide ions, indicate strong interactions in the NaCl_B6_AuNP and NaBr_B6_AuNP systems associated with the spectrophotometric identification of the electrogenerated intermediates, while in the presence of fluoride ions no such products are identified. The development of the mechanism of electrochemical degradation of the pyridoxine molecule predicts both the formation of the corresponding electrogenerated intermediates and the steps of electro-incineration in a direct mechanism.

Influence of pH on the Migration of Various Forms of Metals in the "Bottom Sediments - Water" System under Experimental Conditions

2009 ◽  
Vol 45 (3) ◽  
pp. 92-100 ◽  
Author(s):  
P. N. Linnik ◽  
A. V. Zubko ◽  
I. B. Zubenko ◽  
I. I. Ignatenko ◽  
L. A. Malinovskaya
Keyword(s):  
Bottom Sediments ◽  
Water System ◽  
Experimental Conditions ◽  
Influence Of Ph

ELECTROCHEMICAL DEGRADATION OF PHARMACEUTICAL EFFLUENTS ON CARBON-BASED ELECTRODES

2012 ◽  
Vol 11 (3) ◽  
pp. 627-634 ◽  
Author(s):  
Florica Manea ◽  
Sorina Motoc ◽  
Aniela Pop ◽  
Rodica Pode ◽  
Carmen Teodosiu
Keyword(s):  
Electrochemical Degradation ◽  
Carbon Based

Influence of pH Value on the Performance of Composite Films Prepared from Chromium Residue by Hydrothermal Method

2013 ◽  
Vol 28 (4) ◽  
pp. 387-392
Author(s):  
Tong SUN ◽  
Lian-Li LIU ◽  
Shu-Ying XU ◽  
Xiao-Lin PENG ◽  
Hai-Long YANG
Keyword(s):  
Hydrothermal Method ◽  
Ph Value ◽  
Composite Films ◽  
Influence Of Ph

Electrochemical Degradation of 2,4,6-Tri-nitrophenol Using Electrodes of Ti/nanoTiO2-PAn

2012 ◽  
Vol 29 (7) ◽  
pp. 814
Author(s):  
Yunhu HU ◽  
Fengwu WANG ◽  
Mai XU ◽  
Wenyan FANG ◽  
Yijun WEI ◽  
...  
Keyword(s):  
Electrochemical Degradation

Using microbial fatty acids to quantify, characterize and compare biofilm and suspended microbial populations in wastewater treatment systems

1998 ◽  
Vol 38 (4-5) ◽  
pp. 273-280 ◽  
Author(s):  
A. G. Werker ◽  
E. R. Hall
Keyword(s):  
Fatty Acid ◽  
Methyl Esters ◽  
Ph Control ◽  
Microbial Populations ◽  
Total Organic Carbon Removal ◽  
Operating Limits ◽  
Suspended Biomass ◽  
Kraft Mill Effluent ◽  
Microbial Fatty Acid ◽  
Influence Of Ph

Spectra of microbial fatty acid methyl esters were used to assess the influence of pH on the biofilm and suspended biomass populations within bench scale moving bed bioreactors treating bleached kraft mill effluent. The fatty acid spectral data were reduced by logcontrast canonical component analysis. The first canonical component differentiated biofilm from suspended populations and the second two appeared to indicate an influence of pH on microbial ecology. Thus, the biofilm and suspended microbial communities were distinct, as were the populations acclimated at pH 6 and pH 8. Experimental data for total organic carbon removal suggested that the more recalcitrant fraction of the influent was consumed by the slower growing, high SRT biofilm fraction of the biomass. Since the biofilm ecology was sensitive to pH within typical pH operating limits of full-scale systems, tighter pH control might improve treatment reliability in the event of process transients.

Demonstration of environmental chemistry with microscale chemistry and a low-cost four-led based photom

2018 ◽  
Vol 16 (4) ◽  
pp. 510
Author(s):  
Wai Kin Kee ◽  
Wing Hong Chan
Keyword(s):  
Phenolic Compounds ◽  
Environmental Chemistry ◽  
Low Cost ◽  
Light Sources ◽  
Electrochemical Degradation

<span>In this article, a four-LED based photometer, in which four LEDs are used as light sources, are demonstrated to be a useful instrument for the study of pollution problems caused by phenols and of their remediation by electrochemical degradation method and the iron (II) catalyzed homogeneous Fenton’s reaction. The fate of phenols can be monitored by the photometer via the 4-aminoantipyrine method. The results revealed that the latter method was a superior method to treat the phenolic compounds.</span>

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