Graft copolymers of starch–polyacrylonitrile prepared by ferrous ion–hydrogen peroxide initiation

1977 ◽  
Vol 21 (9) ◽  
pp. 2565-2573 ◽  
Author(s):  
Edward I. Stout ◽  
Donald Trimnell ◽  
William M. Doane ◽  
Charles R. Russell
Keyword(s):  
Hydrogen Peroxide ◽  
Graft Copolymers ◽  
Ferrous Ion ◽  
Peroxide Initiation

scholarly journals THE RATE CONSTANT OF THE REACTION BETWEEN FERROUS IONS AND HYDROGEN PEROXIDE IN ACID SOLUTION

1957 ◽  
Vol 35 (5) ◽  
pp. 428-436 ◽  
Author(s):  
T. J. Hardwick
Keyword(s):  
Hydrogen Peroxide ◽  
Acid Solution ◽  
Sulphuric Acid ◽  
Acid Concentration ◽  
Rate Constant ◽  
Perchloric Acid ◽  
Ferrous Ion ◽  
Ferrous Ions ◽  
Bimolecular Rate Constant

Identical values of the bimolecular rate constant of the ferrous ion – hydrogen peroxide reaction were obtained from intercomparisons of the methods previously used in following this reaction. In perchloric acid the bimolecular rate constant is unaffected by acid concentration; in sulphuric acid it increases slightly in acid concentrations above 10−2N. The results agree with and explain the differences between those obtained by Baxendale and by Dainton, but are only in marginal agreement with those recently reported by Weiss.

Regioselective degradation of [beta] 1,3 glucan by ferrous ion and hydrogen peroxide (Fenton oxidation)

2020 ◽  
Vol 497 ◽  
pp. 108124
Author(s):  
Rafael Ovalle ◽  
Lijie Chen ◽  
Clifford E. Soll ◽  
Carol Wood Moore ◽  
Peter N. Lipke
Keyword(s):  
Hydrogen Peroxide ◽  
Fenton Oxidation ◽  
Ferrous Ion

scholarly journals Effect of Ferrous Ion on Heat-Induced Aroma Deterioration of Green Tea Infusion

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4255
Author(s):  
Ying Gao ◽  
Jie-Qiong Wang ◽  
Jian-Xin Chen ◽  
Fang Wang ◽  
Gen-Sheng Chen ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Hydrogen Peroxide ◽  
Green Tea ◽  
Underlying Mechanism ◽  
Ferrous Ion ◽  
Tea Infusion ◽  
Ms Analysis ◽  
Production Of Hydrogen ◽  
Aroma Characteristics

Aroma deterioration is one of the biggest problems in processing tea beverages. The aroma of tea infusion deteriorates fast during heat sterilization and the presence of ferrous ion (Fe2+) aggravates it. The underlying mechanism remains unveiled. In this study, Fe2+ was verified to deteriorate the aroma quality of green tea infusion with heat treatment. Catechins were necessary for Fe2+-mediated aroma deterioration. By enhancing the degradation of catechins, Fe2+ dramatically increased the production of hydrogen peroxide (H2O2). Fe2+ and H2O2 together exacerbated the aroma of green tea infusion with heat treatment. GC-MS analysis revealed that the presence of Fe2+ enhanced the loss of green/grassy volatiles and promoted the formation of new volatiles with diversified aroma characteristics, resulting in a dull scent of green tea infusion. Our results revealed how Fe2+ induced aroma deterioration of green tea infusion with heat treatment and could help guide tea producers in attenuating the aroma deterioration of tea infusion during processing.

Preparation of carbon dots from succinic acid and glycerol as ferrous ion and hydrogen peroxide dual-mode sensors and for cell imaging

2018 ◽  
Vol 86 ◽  
pp. 517-529 ◽  
Author(s):  
Thitarat Prathumsuwan ◽  
Supawan Jamnongsong ◽  
Somponnat Sampattavanich ◽  
Peerasak Paoprasert
Keyword(s):  
Hydrogen Peroxide ◽  
Succinic Acid ◽  
Carbon Dots ◽  
Cell Imaging ◽  
Ferrous Ion ◽  
Dual Mode

scholarly journals Removal of nitrate from water by acid-washed zero-valent iron/ferrous ion/hydrogen peroxide: influencing factors and reaction mechanism

2017 ◽  
Vol 77 (2) ◽  
pp. 525-533 ◽  
Author(s):  
Yongye Li ◽  
Fenglian Fu ◽  
Zecong Ding
Keyword(s):  
Hydrogen Peroxide ◽  
Reaction Mechanism ◽  
Photoelectron Spectroscopy ◽  
Nitrate Reduction ◽  
Nitrate Removal ◽  
Zero Valent Iron ◽  
Ferrous Ion ◽  
Combined System ◽  
X Ray ◽  
Before And After

Abstract In this paper, a system consisting of acid-washed zero-valent iron (ZVI), ferrous ion (Fe2+), and hydrogen peroxide (H2O2) was employed for the removal of nitrate (NO3−) from water, and the reaction mechanism for this is discussed. The effects of acid-washed ZVI, Fe2+, H2O2, and initial NO3− concentration on nitrate removal were investigated. Acid-washed ZVI before and after reaction with nitrate were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). Results reveal that the combined system can enhance the corrosion of ZVI and facilitate aqueous nitrate reduction. The products of nitrate reduction are mainly ammonium, with some N2. The ZVI particles after reaction may have a core of ZVI with an oxidation layer mainly consisting of Fe3O4.

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