Dual-functional Ag@Au core-shell nanostructures for in situ SERS study of hydrogen peroxide decomposition (Conference Presentation)

2018 ◽  
Author(s):  
Shuyue He ◽  
Kai Liu ◽  
Fei Tian
Keyword(s):  
Hydrogen Peroxide ◽  
Core Shell ◽  
Hydrogen Peroxide Decomposition ◽  
Shell Nanostructures ◽  
Dual Functional ◽  
Peroxide Decomposition

Generation of singlet oxygen (1O2) from hydrogen peroxide decomposition by in situ generated hypervalent iodoarene reagents

2014 ◽  
Vol 86 (6) ◽  
pp. 945-952 ◽  
Author(s):  
Erbay Kalay ◽  
Hamdullah Kılıç ◽  
Mustafa Catir ◽  
Murat Cakici ◽  
Cavit Kazaz
Keyword(s):  
Hydrogen Peroxide ◽  
Singlet Oxygen ◽  
Molecular Oxygen ◽  
Singlet Molecular Oxygen ◽  
Hydrogen Peroxide Decomposition ◽  
Co Catalyst ◽  
Peroxide Decomposition ◽  
Novel Method

AbstractA novel method for the production of singlet oxygen from H2O2 was developed. A combination of iodoarene (ArI), methyltrioxorhenium (MTO), and H2O2 in the presence of pyridine as the co-catalyst efficiently produced singlet molecular oxygen (1O2) under biphasic conditions. The existence of 1O2 was demonstrated by trapping experiments with aromatic dienes, 1,3-cyclodienes, and alkenes. The mechanism of 1O2 production from the iodoarene/MTO/35 % H2O2 system and the reaction scope was also discussed.

Design of In Situ Fenton Oxidation Based on the Integration of Experimental and Numerical Modelling

2010 ◽  
Vol 13 (2) ◽  
Author(s):  
Renato Baciocchi ◽  
Cesare Ciotti ◽  
Giacomo Cleriti ◽  
Ivan Innocenti ◽  
Alessandro Nardella
Keyword(s):  
Hydrogen Peroxide ◽  
Numerical Modelling ◽  
Pilot Scale ◽  
Gas Production ◽  
Operating Conditions ◽  
Fenton Oxidation ◽  
Hydrogen Peroxide Decomposition ◽  
Batch Tests ◽  
Peroxide Decomposition

AbstractCriteria for the design of In-Situ Fenton Oxidation (ISFO) is proposed and applied to the development of a pilot-scale treatment of a former refinery site contaminated by hydrocarbons. The proposed criteria takes in account both the regulatory and technical constraints that typically characterize the application of in situ remediation technologies. The proposed design strategy of the ISFO treatment is based on coupling experimental and numerical modelling of the ISFO treatment in an iterative way. Batch tests are performed first, allowing to select the optimal operating conditions and the data on hydrogen peroxide decomposition kinetics. These data, together with the hydro-geological information collected in the field, are then used for the numerical modelling of the ISFO treatment, which allows to define the pilot plant layout and operating conditions and to evaluate the effective delivery of the oxidant and the hydraulic gradient developed in the field. These data are then used to design column scale tests aimed to evaluate the effective hydrogen peroxide longevity, the process performance and the extent of gas production from hydrogen peroxide decomposition.

scholarly journals Intratumoral synthesis of nano-metalchelate for tumor catalytic therapy by ligand field-enhanced coordination

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Bowen Yang ◽  
Heliang Yao ◽  
Han Tian ◽  
Zhiguo Yu ◽  
Yuedong Guo ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Reactive Oxygen Species Generation ◽  
Ligand Field ◽  
Hydrogen Peroxide Decomposition ◽  
Chemical Corrosion ◽  
Oxygen Reduction Reactions ◽  
Peroxide Decomposition ◽  
Cancer Nanomedicine ◽  
Iron Gall

AbstractThe iron gall ink-triggered chemical corrosion of hand-written documents is a big threat to Western cultural heritages, which was demonstrated to result from the iron gall (GA-Fe) chelate-promoted reactive oxygen species generation. Such a phenomenon has inspired us to apply the pro-oxidative mechanism of GA-Fe to anticancer therapy. In this work, we construct a composite cancer nanomedicine by loading gallate into a Fe-engineered mesoporous silica nanocarrier, which can degrade in acidic tumor to release the doped Fe3+ and the loaded gallate, forming GA-Fe nanocomplex in situ. The nanocomplex with a highly reductive ligand field can promote oxygen reduction reactions generating hydrogen peroxide. Moreover, the resultant two-electron oxidation form of GA-Fe is an excellent Fenton-like agent that can catalyze hydrogen peroxide decomposition into hydroxyl radical, finally triggering severe oxidative damage to tumors. Such a therapeutic approach by intratumoral synthesis of GA-Fe nano-metalchelate may be instructive to future anticancer researches.

scholarly journals In Situ Strain Evolution on Pt Nanoparticles during Hydrogen Peroxide Decomposition

Nano Letters ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 8541-8548
Author(s):  
Sungwook Choi ◽  
Myungwoo Chung ◽  
Dongjin Kim ◽  
Sungwon Kim ◽  
Kyuseok Yun ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Pt Nanoparticles ◽  
Hydrogen Peroxide Decomposition ◽  
Strain Evolution ◽  
Peroxide Decomposition

In situ oxidation remediation technologies: Kinetic of hydrogen peroxide decomposition on soil organic matter

2009 ◽  
Vol 170 (2-3) ◽  
pp. 627-632 ◽  
Author(s):  
Arturo Romero ◽  
Aurora Santos ◽  
Fernando Vicente ◽  
Sergio Rodriguez ◽  
A. Lopez Lafuente
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
Hydrogen Peroxide Decomposition ◽  
In Situ Oxidation ◽  
Peroxide Decomposition

Bifunctional Au@Pt core–shell nanostructures for in situ monitoring of catalytic reactions by surface-enhanced Raman scattering spectroscopy

Nanoscale ◽  
2014 ◽  
Vol 6 (15) ◽  
pp. 9063-9070 ◽  
Author(s):  
Zhi Yong Bao ◽  
Dang Yuan Lei ◽  
Ruibin Jiang ◽  
Xin Liu ◽  
Jiyan Dai ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
In Situ Monitoring ◽  
Core Shell ◽  
Raman Scattering Spectroscopy ◽  
Shell Nanostructures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Surface-enhanced Raman scattering spectroscopy using bifunctional Au@Pt core–shell nanostructures can monitor the catalytic reaction dynamics in real time.

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