Mussel and fish scale-inspired underwater superoleophobic kapok membranes for continuous and simultaneous removal of insoluble oils and soluble dyes in water

2015 ◽  
Vol 3 (36) ◽  
pp. 18475-18482 ◽  
Author(s):  
Junping Zhang ◽  
Lei Wu ◽  
Yujie Zhang ◽  
Aiqin Wang
Keyword(s):  
High Stability ◽  
Adsorption Properties ◽  
Water Soluble ◽  
Simultaneous Removal ◽  
Fish Scale ◽  
High Adsorption ◽  
Underwater Superoleophobicity

Kapok membranes with excellent underwater superoleophobicity, high adsorption properties for water-soluble dyes, and high stability and flexibility are fabricated.

scholarly journals Silica Monolith for the Removal of Pollutants from Gas and Aqueous Phases

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1316
Author(s):  
Vanessa Miglio ◽  
Chiara Zaccone ◽  
Chiara Vittoni ◽  
Ilaria Braschi ◽  
Enrico Buscaroli ◽  
...  
Keyword(s):  
Rhodamine B ◽  
Water Solution ◽  
Synthesis Method ◽  
Textural Properties ◽  
Adsorption Properties ◽  
Water Soluble ◽  
Silica Monoliths ◽  
Physico Chemical ◽  
Gaseous Toluene ◽  
Mcm 41

This study focused on the application of mesoporous silica monoliths for the removal of organic pollutants. The physico-chemical textural and surface properties of the monoliths were investigated. The homogeneity of the textural properties along the entire length of the monoliths was assessed, as well as the reproducibility of the synthesis method. The adsorption properties of the monoliths for gaseous toluene, as a model of Volatile Organic Compounds (VOCs), were evaluated and compared to those of a reference meso-structured silica powder (MCM-41) of commercial origin. Silica monoliths adsorbed comparable amounts of toluene with respect to MCM-41, with better performances at low pressure. Finally, considering their potential application in water phase, the adsorption properties of monoliths toward Rhodamine B, selected as a model molecule of water soluble pollutants, were studied together with their stability in water. After 24 h of contact, the silica monoliths were able to adsorb up to the 70% of 1.5 × 10−2 mM Rhodamine B in water solution.

SYNTHESIS OF L-α-CEPHALINS CONTAINING FATTY ACIDS OF SHORTER CHAIN LENGTH: WATER-SOLUBLE GLYCEROLPHOSPHATIDES II

1960 ◽  
Vol 38 (1) ◽  
pp. 859-864
Author(s):  
Erich Baer ◽  
Tibor Gróf
Keyword(s):  
Fatty Acids ◽  
Chain Length ◽  
Chloroform Solution ◽  
Water Soluble ◽  
Simultaneous Removal ◽  
Protective Groups ◽  
Salt Structure ◽  
Catalytic Hydrogenolysis

L-α-(Dihexanoyl)cephalin has been synthesized by the phosphorylation of D-α,β-dihexanoylglycerol with phenylphosphoryl dichloride and pyridine, esterification of the reaction product, viz. dihexanoyl-L-α-glycerylphenylphosphoryl chloride, with N-carbobenzoxyethanolamine, and simultaneous removal of the protective groups of dihexanoyl-L-α-glycerylphenylphosphoryl-N-carbobenzoxyethanolamine by catalytic hydrogenolysis. The L-α-(dihexanoyl)cephalin is soluble in water.Infrared evidence supports the inner-salt structure of cephalins in chloroform solution.

Characterization of Metakaolin-Based Materials for Dye Adsorption from Aqueous Solution

2018 ◽  
Vol 283 ◽  
pp. 88-94
Author(s):  
Narumon Lertcumfu ◽  
Pharatree Jaita ◽  
Gobwute Rujijanagul ◽  
Tawee Tunkasiri
Keyword(s):  
Aqueous Solution ◽  
Aluminum Oxide ◽  
Distribution Coefficient ◽  
Alkaline Solution ◽  
Dye Adsorption ◽  
Adsorption Properties ◽  
High Adsorption ◽  
Uptake Capacity ◽  
High Adsorption Capacity

The properties of metakaolin-based materials were investigated. The studied materials were prepared by mixing metakaolin and aluminum oxide in alkaline solution. The obtained samples were cast into plastic molds and then left at 27°C for 24 h. The properties of the materials were investigated using XRD, FTIR, and SEM. The obtained results suggested that reaction of the mixed materials occurred. The adsorption properties of the materials, including removal efficiency, distribution coefficient, and uptake capacity were determined. The obtained results revealed that the studied materials exhibited high adsorption capacity, which is good for the adsorbent applications.

Aloe vera mucilage derived highly tolerant underwater superoleophobic coatings

2018 ◽  
Vol 6 (45) ◽  
pp. 22465-22471 ◽  
Author(s):  
Arpita Shome ◽  
Adil Majeed Rather ◽  
Uttam Manna
Keyword(s):  
Michael Addition ◽  
Addition Reaction ◽  
Aloe Vera ◽  
Fish Scale ◽  
Michael Addition Reaction ◽  
Underwater Superoleophobicity

An aloe vera mucilage (AVM) derived highly tolerant and stretchable fish-scale-mimicked coating is introduced by the strategic use of Michael addition reaction. The naturally derived and nature-inspired coating is capable of sustaining various challenging exposures—without compromising the embedded underwater superoleophobicity.

One-step synthesis of aluminum magnesium oxide nanocomposites for simultaneous removal of arsenic and lead ions in water

RSC Advances ◽  
2015 ◽  
Vol 5 (11) ◽  
pp. 8190-8193 ◽  
Author(s):  
Feng Xiao ◽  
Liping Fang ◽  
Wentao Li ◽  
Dongsheng Wang
Keyword(s):  
Magnesium Oxide ◽  
Solvothermal Method ◽  
Lead Ions ◽  
Simultaneous Removal ◽  
High Adsorption ◽  
Microwave Assisted ◽  
Adsorption Capacities ◽  
One Step ◽  
Removal Of Arsenic

Aluminum magnesium oxide nanocomposites were prepared using a one-step microwave assisted solvothermal method, and showed high adsorption capacities for the removal of both As(v) and Pb(ii) ions in water.

scholarly journals In Situ Loading and Delivery of Short Single- and Double-Stranded DNA by Supramolecular Organic Frameworks

CCS Chemistry ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 156-165 ◽  
Author(s):  
Bo Yang ◽  
Xiao-Dan Zhang ◽  
Jian Li ◽  
Jia Tian ◽  
Yi-Peng Wu ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Dna Sequences ◽  
Laser Scanning ◽  
High Stability ◽  
Intracellular Delivery ◽  
Water Soluble ◽  
Laser Scanning Microscopy ◽  
Confocal Laser ◽  
Nucleic Acid Delivery

Short DNA represents an important class of biomacromolecules that are widely applied in gene therapy, editing, and modulation. However, the development of simple and reliable methods for their intracellular delivery remains a challenge. Herein, we describe that seven water-soluble, homogeneous supramolecular organic frameworks (SOFs) with a well-defined pore size and high stability in water that can accomplish in situ inclusion of single-stranded (ss) and double-stranded (ds) DNA (21, 23, and 58 nt) and effective intracellular delivery (including two noncancerous and six cancerous cell lines). Fluorescence quenching experiments for single and double end-labeled ss- and ds-DNA support that the DNA sequences can be completely enveloped by the SOFs. Confocal laser scanning microscopy and flow cytometry reveal that five of the SOFs exhibit excellent delivery efficiencies that, in most of the studied cases, outperform the commercial standard Lipo2000, even at low SOF–nucleic acid ratios. In addition to high delivery efficiencies, the water-soluble, self-assembled SOF carriers have a variety of advantages, including convenient preparation, high stability, and in situ DNA inclusion, which are all critical for practical applications in nucleic acid delivery.

A new anionic metal–organic framework showing tunable emission by lanthanide(III) doping and highly selective CO2 adsorption properties

RSC Advances ◽  
2015 ◽  
Vol 5 (31) ◽  
pp. 24655-24660 ◽  
Author(s):  
Rong-Ying Chen ◽  
Dan Tian ◽  
Yun-Wu Li ◽  
Ying-Bin Lv ◽  
Hong-Wei Sun ◽  
...  
Keyword(s):  
Co2 Adsorption ◽  
Metal Organic Framework ◽  
Adsorption Properties ◽  
High Adsorption ◽  
Adsorption Selectivity ◽  
Metal Organic ◽  
Tunable Emission ◽  
Organic Framework

A 3D porous anionic MOF (1), decorated with -NH2 and N sites, can serve as a host for the encapsulation of lanthanide(iii) cations for emission tuning. Besides, it also shows high adsorption selectivity for CO2 over CH4 and N2 at 273 K.

scholarly journals THE COMPARATIVE DESCRIPTION OF THE ADSORPTION PROPERTIES OF ENTEROSORBENTS

2016 ◽  
pp. 41-46
Author(s):  
V. A. Filippova ◽  
A. V. Lysenkova ◽  
V. A. Ignatenko ◽  
A. K. Dovnar
Keyword(s):  
Heavy Metals ◽  
Vitamin C ◽  
Adsorption Capacity ◽  
Active Surface ◽  
Adsorption Properties ◽  
Fourth Generation ◽  
High Adsorption ◽  
Toxic Heavy Metals ◽  
High Adsorption Capacity ◽  
Main Component

The aim of research: comparative study of adsorption capacity and selectivity of enterosorbents of different generations. Material and methods. The subject of the study is enterosorbents widely applied in clinical practice. They belong to different generations and exhibit different adsorption capacities and different doses of daily application. Results. It was found out that enterosorbents differed from one another and the latest generation had more perfect and diverse adsorption properties. The experimental data confirmed that enterosorbents of the fourth generation, in particular white carbon, whose main component is silicon dioxide exhibited a highly developed active surface and high adsorption capacity relative to highly toxic heavy metals, while its ability to bind and remove useful components (biometals and vitamin C) in organism was negligibly low. Conclusions. The enterosorbent of the fourth generation «White coal» possess high adsorption capacity toward heavy metals and simultaneously are characterized by negligibly low capacity to bind and remove bioactive compounds such as biometals and vitamin C.

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