Enhanced surface properties of iron by in situ hard nickel coating

The surface hydrophobicity of different types of bacteria in activated sludge were investigated under in situ conditions by following the adhesion of fluorescent microspheres with defined surface properties to bacterial surfaces (the MAC-method). This technique was combined with identification of the bacteria with fluorescence in situ hybridization with rRNA-targeted oligonucleotides (FISH) and could thus be used for characterization of surface properties of probe-defined bacteria directly in a complex system without prior enrichment or isolation. This MAC-FISH technique could be used for single bacteria as well as filamentous bacteria. In the investigated activated sludge from an industrial wastewater treatment plant, two types of filamentous bacteria dominated. One morphotype consistently attracted only very few hydrophobic microspheres, indicating that the thin sheath of exopolymers around the cells had a hydrophilic surface. Use of a hierarchical set of gene probes revealed that these filaments were sulphide oxidising Thiothrix spp. The other predominating filamentous morphotype had a thick, very hydrophobic exopolymeric sheath. This filamentous bacterium was found to belong to the alpha-Proteobacteria. The relevance of the significant differences in surface hydrophobicity for the two morphotypes in respect to substrate uptake and floc formation is discussed.

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In-situ construction of antifouling separation layer via a reaction enhanced surface segregation method

Chemical Engineering Science ◽

10.1016/j.ces.2018.06.020 ◽

2018 ◽

Vol 190 ◽

pp. 89-97 ◽

Cited By ~ 9

Author(s):

Mingrui He ◽

Yanlei Su ◽

Runnan Zhang ◽

Yanan Liu ◽

Shiyu Zhang ◽

...

Keyword(s):

Surface Segregation ◽

Enhanced Surface

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Enhanced surface properties of AISI-304 using bi-step cathodic cage plasma processing

Vacuum ◽

10.1016/j.vacuum.2018.02.022 ◽

2018 ◽

Vol 151 ◽

pp. 243-246 ◽

Cited By ~ 5

Author(s):

Ubaid-ur-rehman ◽

M. Shafiq ◽

M. Naeem ◽

H.A. Raza ◽

Murtaza Saleem ◽

...

Keyword(s):

Surface Properties ◽

Plasma Processing ◽

Aisi 304 ◽

Enhanced Surface

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In situ modification provided by a novel wet pyrolysis system to enhance surface properties of biochar for lead immobilization

Colloids and Surfaces A Physicochemical and Engineering Aspects ◽

10.1016/j.colsurfa.2019.03.012 ◽

2019 ◽

Vol 570 ◽

pp. 39-47 ◽

Cited By ~ 5

Author(s):

Nan Zhou ◽

Yifan Wang ◽

Liyang Huang ◽

Jingang Yu ◽

Huanli Chen ◽

...

Keyword(s):

Surface Properties ◽

In Situ Modification ◽

Lead Immobilization

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In Situ Modification of Reverse Osmosis Membrane Elements for Enhanced Removal of Multiple Micropollutants

Membranes ◽

10.3390/membranes9020028 ◽

2019 ◽

Vol 9 (2) ◽

pp. 28 ◽

Cited By ~ 7

Author(s):

Katie Baransi-Karkaby ◽

Maria Bass ◽

Viatcheslav Freger

Keyword(s):

Boric Acid ◽

Reverse Osmosis ◽

Composite Membranes ◽

Low Pressure ◽

Pharmaceutically Active Compounds ◽

Surface Polymerization ◽

In Situ Modification ◽

Endocrine Disrupting ◽

Enhanced Surface

Reverse osmosis (RO) membranes are widely used for desalination and water treatment. However, they insufficiently reject some small uncharged micropollutants, such as certain endocrine-disrupting, pharmaceutically active compounds and boric acid, increasingly present in water sources and wastewater. This study examines the feasibility of improving rejection of multiple micropollutants in commercial low-pressure RO membrane elements using concentration polarization- and surfactant-enhanced surface polymerization. Low-pressure membrane elements modified by grafting poly(glycidyl methacrylate) showed enhanced rejection of all tested solutes (model organic micropollutants, boric acid, and NaCl), with permeability somewhat reduced, but comparable with commercial brackish water RO membranes. The study demonstrates the potential and up-scalability of grafting as an in situ method for improving removal of various classes of organic and inorganic micropollutants and tuning performance in RO and other dense composite membranes for water purification.

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In situ growth of carbon nanotubes on inorganic fibers with different surface properties

Materials Chemistry and Physics ◽

10.1016/j.matchemphys.2007.07.020 ◽

2008 ◽

Vol 107 (2-3) ◽

pp. 317-321 ◽

Cited By ~ 24

Author(s):

Qiang Zhang ◽

Weizhong Qian ◽

Rong Xiang ◽

Zhou Yang ◽

Guohua Luo ◽

...

Keyword(s):

Carbon Nanotubes ◽

Surface Properties ◽

In Situ Growth

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SURFACE PROPERTIES OF THE IN SITU FORMED CERAMICS REINFORCED COMPOSITE COATINGS ON TI-3AL-2V ALLOYS

Surface Review and Letters ◽

10.1142/s0218625x12500096 ◽

2012 ◽

Vol 19 (02) ◽

pp. 1250009 ◽

Cited By ~ 3

Author(s):

PENG LIU ◽

WEI GUO ◽

DAKUI HU ◽

HUI LUO ◽

YUANBIN ZHANG

Keyword(s):

Wear Resistance ◽

Titanium Alloy ◽

Composite Coating ◽

Surface Properties ◽

Laser Cladding ◽

Composite Coatings ◽

Micro Hardness ◽

Reinforced Composite

The synthesis of hard composite coating on titanium alloy by laser cladding of Al/Fe/Ni+C/Si3N4 pre-placed powders has been investigated in detail. SEM result indicated that a composite coating with metallurgical joint to the substrate was formed. XRD result indicated that the composite coating mainly consisted of γ- (Fe, Ni) , FeAl , Ti3Al , TiC , TiNi , TiC0.3N0.7 , Ti2N , SiC , Ti5Si3 and TiNi . Compared with Ti-3Al-2V substrate, an improvement of the micro-hardness and the wear resistance was observed for this composite coating.

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