Photo-charge regulation of metal-free photocatalyst by carbon dots for efficient and stable hydrogen peroxide production

2021 ◽  
Author(s):  
Yi Li ◽  
Yu Zhao ◽  
Jie Wu ◽  
Yidong Han ◽  
Hui Huang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Water Splitting ◽  
Carbon Dots ◽  
Single Component ◽  
H2o2 Production ◽  
Hydrogen Peroxide Production ◽  
Charge Regulation ◽  
Metal Free

Solar-driven water splitting for hydrogen peroxide (H2O2) production is a sustainable and ultra-clean way. Single-component photocatalyst is tough to meet all the requirements for efficient and stable photoproduction of H2O2....

scholarly journals Hydrogen peroxide production and killing of Staphylococcus aureus by human polymorphonuclear leukocytes

Blood ◽  
1977 ◽  
Vol 49 (3) ◽  
pp. 437-444 ◽  
Author(s):  
MF Tsan ◽  
KH Douglass ◽  
PA McIntyre
Keyword(s):  
Hydrogen Peroxide ◽  
Staphylococcus Aureus ◽  
Horseradish Peroxidase ◽  
Polymorphonuclear Leukocytes ◽  
H2o2 Production ◽  
Intracellular Killing ◽  
Hydrogen Peroxide Production ◽  
Production Of Hydrogen ◽  
Human Polymorphonuclear Leukocytes ◽  
Stimulation Of

Abstract The effects of bacterial neuraminidase on production of hydrogen peroxide (H2O2) and killing of Staphylococcus aureus by human polymorphonuclear leukocytes (PMN) were studied. The concentration of H2O2 was measured by the disappearance of scopoletin fluorescence in the presence of horseradish peroxidase. The results indicated that desialylation of human PMN inhibited the stimulation of H2O2 production during phagocytosis. It also markedly impaired the killing of S. aureus. Impaired killing of S. aureus by desialylated PMN was due to impaired intracellular killing rather than defective phagocytosis.

Interface photo-charge kinetics regulation by carbon dots for efficient hydrogen peroxide production

2021 ◽  
Vol 9 (1) ◽  
pp. 515-522
Author(s):  
Yi Li ◽  
Yajie Zhao ◽  
Haodong Nie ◽  
Kaiqiang Wei ◽  
Jingjing Cao ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Dots ◽  
Hydrogen Peroxide Production

Interface photo-charge kinetics can be regulated by carbon dots for efficient hydrogen peroxide production.

scholarly journals Hydrogen peroxide production and killing of Staphylococcus aureus by human polymorphonuclear leukocytes

Blood ◽  
1977 ◽  
Vol 49 (3) ◽  
pp. 437-444
Author(s):  
MF Tsan ◽  
KH Douglass ◽  
PA McIntyre
Keyword(s):  
Hydrogen Peroxide ◽  
Staphylococcus Aureus ◽  
Horseradish Peroxidase ◽  
Polymorphonuclear Leukocytes ◽  
H2o2 Production ◽  
Intracellular Killing ◽  
Hydrogen Peroxide Production ◽  
Production Of Hydrogen ◽  
Human Polymorphonuclear Leukocytes ◽  
Stimulation Of

The effects of bacterial neuraminidase on production of hydrogen peroxide (H2O2) and killing of Staphylococcus aureus by human polymorphonuclear leukocytes (PMN) were studied. The concentration of H2O2 was measured by the disappearance of scopoletin fluorescence in the presence of horseradish peroxidase. The results indicated that desialylation of human PMN inhibited the stimulation of H2O2 production during phagocytosis. It also markedly impaired the killing of S. aureus. Impaired killing of S. aureus by desialylated PMN was due to impaired intracellular killing rather than defective phagocytosis.

Microwave assisted synthesis of carbon dots in ionic liquid as metal free catalyst for highly selective production of hydrogen peroxide

Carbon ◽  
2018 ◽  
Vol 130 ◽  
pp. 544-552 ◽  
Author(s):  
Thuan-Nguyen Pham-Truong ◽  
Thomas Petenzi ◽  
Christine Ranjan ◽  
Hyacinthe Randriamahazaka ◽  
Jalal Ghilane
Keyword(s):  
Hydrogen Peroxide ◽  
Ionic Liquid ◽  
Carbon Dots ◽  
Microwave Assisted Synthesis ◽  
Metal Free ◽  
Microwave Assisted ◽  
Production Of Hydrogen

ChemInform Abstract: Sunlight-Driven Hydrogen Peroxide Production from Water and Molecular Oxygen by Metal-Free Photocatalysts.

ChemInform ◽  
2015 ◽  
Vol 46 (11) ◽  
pp. no-no
Author(s):  
Yasuhiro Shiraishi ◽  
Shunsuke Kanazawa ◽  
Yusuke Kofuji ◽  
Hirokatsu Sakamoto ◽  
Satoshi Ichikawa ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Molecular Oxygen ◽  
Hydrogen Peroxide Production ◽  
Metal Free

Efficient oxidative hydrogen peroxide production and accumulation in photoelectrochemical water splitting using a tungsten trioxide/bismuth vanadate photoanode

2016 ◽  
Vol 52 (31) ◽  
pp. 5406-5409 ◽  
Author(s):  
Kojiro Fuku ◽  
Kazuhiro Sayama
Keyword(s):  
Hydrogen Peroxide ◽  
Water Splitting ◽  
Tungsten Trioxide ◽  
Bismuth Vanadate ◽  
Photoelectrochemical Water Splitting ◽  
Solar Light ◽  
Hydrogen Peroxide Production ◽  
Hydrogen Carbonate

H2O2was produced on a WO3/BiVO4photoanode using hydrogen carbonate as an electrolyte in H2production from water under solar light.

scholarly journals Solar-to-hydrogen peroxide conversion of photocatalytic carbon dots with anthraquinone: Unveiling the dual role of surface functionalities

2020 ◽  
Author(s):  
Minsu Gu ◽  
Do-Yeon Lee ◽  
Jinhong Mun ◽  
Dongseok Kim ◽  
Haein Cho ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Charge Carrier ◽  
Carbon Dots ◽  
Active Sites ◽  
High Performance ◽  
Reduction Reaction ◽  
Dual Role ◽  
H2o2 Production ◽  
Hydroxyl Groups ◽  
Production Of Hydrogen

Abstract Solar-driven photocatalytic production of hydrogen peroxide (H2O2) requires only sunlight, oxygen, and water, making it a green and sustainable alternative to conventional H2O2 production processes. We present photocatalytic carbon dots (CDs) as a new candidate for high-performance H2O2 production. Owing to the generation of an excellent charge carrier and the presence of various oxygen-containing functional groups, CDs showed an outstanding H2O2 production capability of 609.4 μmol g-1 h-1 even in the absence of an electron donor, demonstrating promising self-electron-donating capabilities. Hydroxyl groups on their surface, in particular, serve a dual role as photocatalytic active sites and as electron and proton donors toward the oxygen reduction reaction (ORR). The photocatalytic activity of CDs was significantly improved to 1187.8 μmol g-1 by functionalizing their surfaces with anthraquinone (AQ) as a co-catalyst; it promoted the charge carrier separation and electrochemically favors the two-electron pathway of ORR. These carbon-based metal-free nanohybrids that are a unique combination of CDs and AQ could offer insights into designing efficient photocatalysts for future solar-to-H2O2 conversion systems.

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