scholarly journals Enhanced removal of low-concentration methyl mercaptan by synergetic effect between surface functional group and metallic site

2021 ◽  
pp. 101663
Author(s):  
Zhou Lin ◽  
Jiacun Zhao ◽  
Jia Zhang ◽  
Jianzhong Wu ◽  
Yang Yue ◽  
...  
Keyword(s):  
Functional Group ◽  
Synergetic Effect ◽  
Surface Functional Group ◽  
Methyl Mercaptan ◽  
Low Concentration

scholarly journals Variation in Feedstock Wood Chemistry Strongly Influences Biochar Liming Potential

Soil Systems ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 26 ◽  
Author(s):  
Sossina Gezahegn ◽  
Mohini Sain ◽  
Sean Thomas
Keyword(s):  
Functional Group ◽  
Pyrolysis Temperature ◽  
Chemical Properties ◽  
Base Cation ◽  
Surface Functional Group ◽  
Wood Chemistry ◽  
Incubation Experiments ◽  
Phenolic Group ◽  
Capacity Data ◽  
Group Concentration

Chars intended for use as soil amendment (“biochars”) vary greatly in their chemical and physical properties. In the present study, 19 Canadian temperate wood feedstocks were charred across a range of pyrolysis temperatures from 300–700 °C. The resulting 95 biochars were tested for their physio-chemical properties and liming capacity. Data indicated increasing base cation concentrations including Ca, Mg, and K (elements that characteristically form liming compounds, i.e., carbonates) as pyrolysis temperature increased. Acidic surface functional groups were analyzed with modified Boehm titration: Carboxylic and lactonic functional group concentrations decreased and phenolic group concentration increased with pyrolysis temperature. Functional group composition also varied greatly with feedstock: In particular, conifer-derived biochars produced at pyrolysis temperatures <500 °C showed much higher carboxylic and lactonic functional group concentrations than did angiosperm-derived biochars. Liming capacity was assessed using soil incubation experiments and was positively related to biochar pH. Both acidic surface functional group concentration and nutrient element concentration influenced biochar pH: we developed a non-linear functional relationship that predicts biochar pH from the ratio of carboxylic to phenolic moieties, and concentrations of Ca and K. Biochar’s liming components that are inherited from feedstock and predictably modified by pyrolysis temperature provide a basis for optimizing the production of biochar with desired pH and liming characteristics.

Periodic surface functional group density on graphene via laser-induced substrate patterning at Si/SiO2 interface

Nano Research ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2332-2339 ◽  
Author(s):  
Karolina A. Drogowska-Horna ◽  
Inam Mirza ◽  
Alvaro Rodriguez ◽  
Petr Kovaříček ◽  
Juraj Sládek ◽  
...  
Keyword(s):  
Functional Group ◽  
Surface Functional Group ◽  
Periodic Surface ◽  
Group Density ◽  
Substrate Patterning

Interactions of emerging contaminants with model colloidal microplastics, C60 fullerene, and natural organic matter – effect of surface functional group and adsorbate properties

2020 ◽  
Vol 22 (5) ◽  
pp. 1190-1200
Author(s):  
Tyler Williams ◽  
Clare Walsh ◽  
Keith Murray ◽  
Mahamud Subir
Keyword(s):  
Organic Matter ◽  
Particulate Matter ◽  
Natural Organic Matter ◽  
Emerging Contaminants ◽  
Functional Group ◽  
C60 Fullerene ◽  
Surface Functional Group ◽  
Colloidal Matter ◽  
Matter Effect ◽  
Effect Of Surface

Molecular properties of emerging contaminants (ECs) and interfacial compositions of colloidal matter dictate the extent of EC–particulate matter surface interaction.

Surface functional group modification induced partial Fermi level pinning and ohmic contact at borophene–MoS2 interfaces

2020 ◽  
Vol 22 (34) ◽  
pp. 19202-19212
Author(s):  
Dongqing Zou ◽  
Wenkai Zhao ◽  
Wanfeng Xie ◽  
Yuqing Xu ◽  
Xiaoteng Li ◽  
...  
Keyword(s):  
Fermi Level ◽  
Functional Groups ◽  
Ohmic Contact ◽  
Functional Group ◽  
Surface Functional Group ◽  
Surface Functional Groups ◽  
Fermi Level Pinning ◽  
Group Modification ◽  
Functional Group Modification

Surface functional groups modification is a feasible approach to achieve SBH tuning for borophene–MoS2 interfaces.

scholarly journals Preparation, Characterization and Application of Multi-Mode Imaging Functional Graphene Au-Fe3O4 Magnetic Nanocomposites

Materials ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 1978 ◽  
Author(s):  
Wei Sun ◽  
Shaowen Huang ◽  
Siyu Zhang ◽  
Qi Luo
Keyword(s):  
Cancer Cells ◽  
Functional Group ◽  
Water Solubility ◽  
Surface Functional Group ◽  
Resonance Imaging ◽  
Acid Condition ◽  
Mode Detection ◽  
Cancer Cell Targeting ◽  
Multi Mode ◽  
Scholarly Attention

Nanomaterials extensively studied by nanotechnology scientists have been extensively applied in biomedicine, chemistry, physics and other fields nowadays. Magnetic nanoparticles, surpassing nano applications, are found to possess many advantages over nonmagnetic nanomaterials. Graphene oxide (GO), in particular, draws growing scholarly attention due to its large surface area, good water solubility and biocompatibility, rich surface functional group and easy-to-modify property. In this paper, we modify the Polyethylene mide (PEI) molecule on the surface of GO to increase its biocompatibility. The Au-Fe3O4 nanoparticles and folic acid molecules on the ligand make the resulting composite applicable both in magnetic resonance imaging and in cancer cell targeting. In addition, the π-π accumulation of doxorubicin used to load the anticancer drug can release the drug under the acid condition of the cancer cells, detect the cancer cells by fluorescence and realize the multi-mode detection of cancer cells.

scholarly journals First-in-Class Phosphorus Dendritic Framework, a Wide Surface Functional Group Palette Bringing Noteworthy Anti-Cancer and Anti-Tuberculosis Activities: What Lessons to Learn?

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3708
Author(s):  
Serge Mignani ◽  
Jérôme Bignon ◽  
Xiangyang Shi ◽  
Jean-Pierre Majoral
Keyword(s):  
Functional Group ◽  
Biological Activities ◽  
Lessons Learned ◽  
Surface Functional Group ◽  
Phenotypic Screening ◽  
Therapeutic Applications ◽  
Original Analysis ◽  
Anti Cancer ◽  
Chemical Groups

Based on phenotypic screening, the major advantages of phosphorus dendrimers and dendrons as drugs allowed the discovery of new therapeutic applications, for instance, as anti-cancer and anti-tuberculosis agents. These biological activities depend on the nature of the chemical groups (neutral or cationic) on their surface as well as their generation. As lessons to learn, in the oncology domain, the increase in the generation of metallo-dendrimers is in the same direction as the anti-proliferative activities, in contrast to the development of polycationic dendrimers, where the most potent anti-tuberculosis phosphorus dendrimer was observed to have the lowest generation (G0). The examples presented in this original analysis of phosphorus dendrimers and dendrons provide support for the lessons learned and for the development of new nanoparticles in nanomedicine.

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