Triplet-State Photochemistry of Dissolved Organic Matter: Triplet-State Energy Distribution and Surface Electric Charge Conditions

2019 ◽  
Vol 53 (5) ◽  
pp. 2482-2490 ◽  
Author(s):  
Huaxi Zhou ◽  
Shuwen Yan ◽  
Lushi Lian ◽  
Weihua Song
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Energy Distribution ◽  
Triplet State ◽  
Electric Charge ◽  
State Energy ◽  
Triplet State Energy

Room temperature phosphorimetric determination of cyanide based on triplet state energy transfer

2003 ◽  
Vol 491 (1) ◽  
pp. 27-35 ◽  
Author(s):  
Marı́a Teresa Fernández-Argüelles ◽  
José M Costa-Fernández ◽  
Rosario Pereiro ◽  
Alfredo Sanz-Medel
Keyword(s):  
Energy Transfer ◽  
Triplet State ◽  
Room Temperature ◽  
State Energy ◽  
Triplet State Energy

Development of Luminescent Terbium(III) Chelates for Protein Labelling: Effect of triplet-state energy level

1997 ◽  
Vol 80 (2) ◽  
pp. 372-387 ◽  
Author(s):  
Harri Takalo ◽  
Veli-Matti Mukkala ◽  
Liisa Meriö ◽  
Juan Carlos Rodríguez-Ubis ◽  
Rosa Sedano ◽  
...  
Keyword(s):  
Energy Level ◽  
Triplet State ◽  
State Energy ◽  
Protein Labelling ◽  
Triplet State Energy

scholarly journals Transfer of Triplet State Energy in Fluid Solutions. IV. Determination of Triplet Yields by the Measurement of Sensitized Biacetyl Phosphorescence.

1969 ◽  
Vol 23 ◽  
pp. 2815-2829 ◽  
Author(s):  
Kjell Sandros ◽  
O. Bastiansen ◽  
Tove Motzfeldt ◽  
D. Heinegård ◽  
Alexandru T. Balaban ◽  
...  
Keyword(s):  
Triplet State ◽  
State Energy ◽  
Triplet State Energy

scholarly journals Triplet State Formation of Chromophoric Dissolved Organic Matter in Atmospheric Aerosols: Characteristics and Implications

2020 ◽  
Author(s):  
Qingcai Chen ◽  
Zhen Mu ◽  
Li Xu ◽  
Mamin Wang ◽  
Jin Wang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Triplet State ◽  
Atmospheric Aerosols ◽  
Formation Rate ◽  
Chromophoric Dissolved Organic Matter ◽  
Biomass Combustion ◽  
Triplet States ◽  
Ambient Aerosols ◽  
Paramagnetic Resonance

Abstract. There is chromophore dissolved organic matter (CDOM) in the atmosphere, which may form triplet-state chromophoric dissolved organic matter (3CDOM*) to further driving the formation of reactive oxygen species (ROS) under solar illumination. 3CDOM* contributes significantly to aerosol photochemistry and plays an important role in aerosol aging. We quantify the ability to form 3CDOM* and drive the formation of ROS by primary, secondary and ambient aerosols. Biomass combustion has the strongest 3CDOM* generation capacity and the weakest vehicle emission capacity. Ambient aerosol has a stronger ability to generate 3CDOM* in winter than in summer. Most of the triplet states generation conform to first-order reaction, but some of them do not due to the different quenching mechanism. The structural-activity relationship between the CDOM type and the 3CDOM* formation capacity shows that the two types of CDOM identified, which similar to the nitrogen-containing chromophores contributed 88 % to the formation of 3CDOM*. The estimated formation rate of 3CDOM* can reach ~ 100 μmol m−3 h−1 in the atmosphere in Xi'an, China, which is approximately one hundred thousand-times the hydroxyl radical (•OH) production. This study verified that 3CDOM* drives at least 30 % of the singlet oxygen (1O2) and 31 % of the •OH formed by aerosols using the spin trapping and electron paramagnetic resonance technique.

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