Results 91 to 100 of about 5,243,021 (356)

Proximity Engineering of Fe‒N4 Twins for Oriented Generation of Singlet Oxygen for Hospital Wastewater Treatment

open access: yesAngewandte Chemie, EarlyView.
Precise modulation of Fe–N4 site distances constructs spin‐regulated Fe–N4 twins, triggering a volcano‐type Fenton‐like activity and promoting oriented singlet oxygen generation. The twin‐site catalyst enables highly selective and efficient hospital wastewater purification with simultaneous pharmaceutical degradation and disinfection under low ...
Xinhao Wang   +10 more
wiley   +2 more sources

Field corn yield in response to humic acids application in the absence or presence of liming and mineral fertilization

open access: yesSemina: Ciências Agrárias, 2019
Corn cultivation continually demands new technologies, since average yields can still be increased. This study aimed to evaluate the response of high-yield corn to humic acids, isolated from organic manure compost, with or without the application of lime
Marihus Altoé Baldotto   +2 more
doaj   +1 more source

Characterization of methylated humic acids [PDF]

open access: yes, 2011
Hlavní náplní této bakalářské práce bylo vhodně charakterizovat vlastnosti methylovaných huminových kyselin. Byla provedena rešerše o modifikacích kyselých funkčních skupin huminových látek a byly vybrány vhodné experimentální metody pro posouzení vlivu ...
Solná, Irena
core  

Chirality and the origin of atmospheric humic-like substances [PDF]

open access: yes, 2010
Aerosol water extracts and atmospheric humic-like substances (HULIS) obtained from PM2.5-fraction aerosol samples collected in a rural/continental background environment and in an urban environment in spring and summer, and at a tropical site that was ...
Maenhaut, Willy   +4 more
core   +3 more sources

Fast Thermoelectric Responses from Unconventional Na‐I Stoichiometry in Reduced Graphene Oxide Films

open access: yesAdvanced Science, EarlyView.
By coating the graphene oxide suspension and the dilute NaI solution layer‐by‐layer from bottom up, this work achieves a heterogeneous structure from asymmetry of the up and bottom surface Na and I atomic ratios in reduced graphene oxide (rGO) films, which exhibits fast thermoelectric responses.
Xinming Xia   +8 more
wiley   +1 more source

Humic acids characterization by EDXS and 13C NMR spectroscopy

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010
Determination of humic acids spectral characteristics performed fast and convenient method for their quality evaluation. Humic acids (HA) were isolated from five different soil types (Luvi-haplic Chernozem, Haplic Luvisol, Haplic Cambisol, Leptic ...
Ľubica Pospíšilová   +3 more
doaj   +1 more source

Coupled Extraction/Re-Extraction Method for the Chemical Speciation of Nickel in NaturalWaters [PDF]

open access: yes, 2020
Chemical fractionation and speciation of metals species in natural waters and its relation with bioavailability have received increased attention in recent years.
Mendiguchía Martínez, Carolina   +2 more
core   +2 more sources

HUMIC ACIDS IN THE ENVIRONMENT

open access: yes, 2023
Humic acids, belonging to the humic substances, are the most reactive organic compounds in water, soil and sediments. They are known for their role in processes related to soil structure, biology, and chemistry, as well as for their effects on the behavior of environmental pollutants.
Marković, Mirjana   +3 more
openaire   +2 more sources

Interaction of humic acids with soil minerals. Adsorption and surface aggregation induced by Ca2

open access: yes, 2015
Environmental context Humic acids, important components of natural organic matter in soils, sediments and aquatic media, can interact with the surface of minerals affecting key environmental processes.
N. Kloster, M. Avena
semanticscholar   +1 more source

Root exudate profiling of maize seedlings inoculated with Herbaspirillum seropedicaeand humic acids

open access: yesChemical and Biological Technologies in Agriculture, 2014
BackgroundCo-inoculation of maize with Herbaspirillum seropedicae and humic substances increases the sizes of plant-associated bacterial populations and enhances grain yields under laboratory and field conditions. Root exudation is a key mechanism in the
Lívia da Silva Lima   +5 more
semanticscholar   +1 more source

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