Electrospun Porous Structure Fibrous Film with High Oil Adsorption Capacity

2012 ◽  
Vol 4 (6) ◽  
pp. 3207-3212 ◽  
Author(s):  
Jing Wu ◽  
Nü Wang ◽  
Li Wang ◽  
Hua Dong ◽  
Yong Zhao ◽  
...  
Keyword(s):  
Porous Structure ◽  
Adsorption Capacity ◽  
Oil Adsorption

scholarly journals Mesoporous Cu-SBA-15 with highly ordered porous structure and its excellent CO2 adsorption capacity

2018 ◽  
Vol 267 ◽  
pp. 134-141 ◽  
Author(s):  
Kripal S. Lakhi ◽  
Gurwinder Singh ◽  
Sungho Kim ◽  
Arun V. Baskar ◽  
Stalin Joseph ◽  
...  
Keyword(s):  
Porous Structure ◽  
Adsorption Capacity ◽  
Co2 Adsorption ◽  
Co2 Adsorption Capacity ◽  
Ordered Porous

Flexible macroporous carbon nanofiber film with high oil adsorption capacity

2014 ◽  
Vol 2 (10) ◽  
pp. 3557 ◽  
Author(s):  
Hua Liu ◽  
Chang-Yan Cao ◽  
Fang-Fang Wei ◽  
Pei-Pei Huang ◽  
Yong-Bin Sun ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Carbon Nanofiber ◽  
Oil Adsorption ◽  
Nanofiber Film ◽  
Macroporous Carbon

scholarly journals Investigation of methylene blue adsorption capacity of porous chitosan particles

2020 ◽  
Vol 2 (SI2) ◽  
pp. First
Author(s):  
Trần Quang Ngọc ◽  
Hoang Thi Trang Nguyen ◽  
Vo Nhat Thang
Keyword(s):  
Methylene Blue ◽  
Porous Structure ◽  
Adsorption Capacity ◽  
Textile Industry ◽  
Great Influence ◽  
Sio2 Nanoparticles ◽  
Desorption Process ◽  
Methylene Blue Adsorption ◽  
Porous Chitosan ◽  
Naoh Solution

Chitosan obtained from shrimp shells and SiO2 nanoparticles obtained from rice husk ash were used to synthesize chitosan - SiO2 composite materials. In order to obtain a porous chitosan adsorbent, the SiO2 particles in the chitosan - SiO2 composite material were removed with NaOH solution. With the orientation of applying adsorbent in wastewater treatment of textile industry, the ability of methylene blue adsorption of chitosan with porous structure has been investigated. Survey results show that chitosan has porous structure with good adsorption capacity of methylene blue. The adsorption capacity of materials depends on many factors such as: structure of particles; pH of adsorption medium and temperature. Adsorbent material is made of composite chitosan - SiO2 with the ratio of chitosan/SiO2 equal to 1/1 (w/w) with the best adsorption capacity. Materials with good adsorption capacity at pH = 6, at low pH, the adsorption capacity of the material is significantly reduced. Temperature has a great influence on the adsorption capacity of the material. The suitable temperature for adsorption of materials is 40 oC. With a higher temperature, the desorption process will be accelerated. This makes the adsorption capacity of the material decrease. The maximum methylene blue adsorption capacity of the material is determined about 7.25 mg/g after 40 minutes of adsorption time.

scholarly journals Novel reusable functionalized magnetic cobalt ferrite nanoparticles as oil adsorbents

2020 ◽  
Vol 38 (5-6) ◽  
pp. 168-190
Author(s):  
Ajra Hadela ◽  
Marijana Lakić ◽  
Mateja Potočnik ◽  
Aljoša Košak ◽  
Andreja Gutmaher ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Oil Spill ◽  
Cobalt Ferrite ◽  
High Surface ◽  
High Surface Area ◽  
Ferrite Nanoparticles ◽  
External Magnet ◽  
Cobalt Ferrite Nanoparticles ◽  
Adsorption Capacities ◽  
Oil Adsorption

Magnetic nanoparticles are amongst the most promising adsorption materials for oil spill clean-up due to their high surface area, ease of functionalization with high oil affinity and facile separation after the cleaning process with an external magnetic field. In this work, we successfully synthesized magnetic cobalt ferrite nanoparticles (CoFe2O4 NPs) that were electrostatically stabilized and functionalized with various alkoxysilanes for effective oil adsorption and oil spill removal. Additionally, the adsorption capacity of CoFe2O4 NPs was determined, and the possibility of their reuse assessed. Prepared samples showed high oil adsorption capacities between 2.6 and 3.5 g of oil per g of nanoparticles and were successfully collected with an external magnet. Furthermore, the samples showed excellent properties after regeneration, as their adsorption capacity decreased by less than 3% after reuse. All the prepared samples were thoroughly characterized to better understand their behaviour and the differences in the use of various silanes were highlighted.

Synthesis of butyl acrylate grafted polypropylene fibre and its applications on oil-adsorption in floating water

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Feng Yuan ◽  
Jun-fu Wei ◽  
En-qi Tang ◽  
Kongyin Zhao
Keyword(s):  
Adsorption Capacity ◽  
Butyl Acrylate ◽  
Graft Polymerization ◽  
Crosslinking Agent ◽  
Maximum Adsorption Capacity ◽  
Oil Absorption ◽  
Absorption Properties ◽  
Oil Adsorption ◽  
Ft Ir ◽  
Grafting Degree

AbstractPolypropylene oil-absorption fibre (PP-g-BA) was prepared by radiationinduced graft polymerization of butyl acrylate (BA) onto polypropylene (PP) using divinylbenzene (DVB) as cross-linking agent. The original and grafted PP fibres were characterized by Fourier transform infrared (FT-IR) spectrometer and Scanning Electron Microscopy (SEM), and the result indicated that butyl acrylate was successfully grafted onto PP fibre. The factors that influenced the grafting degree of PP were discussed, such as the concentration of monomer and crosslinking agent. When the concentration of DVB was 2% and the concentration of BA was 10%, the maximum grafting degree reached 20.53%. The oil absorption properties of PP and PP-g-BA fibre were investigated and the results showed that the maximum adsorption capacity of PP-g-BA reached 19.74 g/g for toluene and 18.8 g/g for kerosene. Simulating absorption in the oil floating on the surface of water showed that the oil could be absorbed quickly and completely in three minutes. PP-g-BA exhibited quicker adsorption rate and higher adsorption capacity than PP fibre did.

scholarly journals Analysis of Compression Resistance and Oil Adsorption Capacity of Cellulose/NaOH Cryogels

2019 ◽  
Vol 7 (3) ◽  
pp. 227-234
Author(s):  
L韉ia K. Lazzari ◽  
Vit髍ia B. Zampieri ◽  
Ademir J. Zattera ◽  
Camila Baldasso
Keyword(s):  
Adsorption Capacity ◽  
Oil Adsorption ◽  
Compression Resistance

scholarly journals Efficient and Fast Removal of Oils from Water Surfaces via Highly Oleophilic Polyurethane Composites

Toxics ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 186
Author(s):  
Antonio De Nino ◽  
Fabrizio Olivito ◽  
Vincenzo Algieri ◽  
Paola Costanzo ◽  
Antonio Jiritano ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Adsorption Capacity ◽  
Sea Water ◽  
Significant Loss ◽  
Maximum Adsorption Capacity ◽  
Oil Removal ◽  
Monolayer Adsorption ◽  
Oil Adsorption ◽  
Polyurethane Composites ◽  
Fast Removal

In this study we evaluated the oil adsorption capacity of an aliphatic polyurethane foam (PU 1) and two of its composites, produced through surface coating using microparticles of silica (PU-Si 2) and activated carbon (PU-ac 3). The oil adsorption capacity in diesel was improved up to 36% using the composite with silica and up to 50% using the composite with activated carbon with respect to the initial PU 1. Excellent performances were retained in gasoline and motor oil. The adsorption was complete after a few seconds. The process follows a monolayer adsorption fitted by the Langmuir isotherm, with a maximum adsorption capacity of 29.50 g/g of diesel for the composite with activated carbon (PU-ac 3). These materials were proved to be highly oleophilic for oil removal from fresh water and sea water samples. Regeneration and reuse can be repeated up to 50 times by centrifugation, without a significant loss in adsorption capacity.

scholarly journals Adsorption of nitrate onto biochar derived from agricultural residuals

2017 ◽  
Vol 77 (2) ◽  
pp. 548-554 ◽  
Author(s):  
Haihua Zhao ◽  
Yingwen Xue ◽  
Li Long ◽  
Xiaolan Hu
Keyword(s):  
Thermal Stability ◽  
Aqueous Solutions ◽  
Porous Structure ◽  
Adsorption Capacity ◽  
Adsorption Kinetics ◽  
Low Cost ◽  
Batch Adsorption ◽  
Surface Functional Groups ◽  
Good Thermal Stability ◽  
Langmuir Adsorption

Abstract To develop low-cost adsorbents for aqueous nitrate, biochars were prepared from three types of agricultural residuals at different pyrolysis temperatures (300 °C, 450 °C, and 600 °C). The corncob biochar produced at 600 °C (CC600) was the best nitrate adsorbent of all the tested biochars. Characterization results showed that CC600 had good thermal stability, porous structure, and abundant surface functional groups. Findings from batch adsorption experiments demonstrated that CC600 showed relatively fast adsorption kinetics to nitrate in aqueous solutions. In addition, the Langmuir adsorption capacity of CC600 to nitrate was 14.46 mg/g, comparable to that of other biochar-based adsorbents. Therefore, CC600 showed promising potential to be used as a low-cost adsorbent for the treatment of nitrate in water.

Action of amorphous silica dusts on the German cockroach Blattella germanica (Linneaus) (Orthoptera: Blattidae)

1990 ◽  
Vol 80 (1) ◽  
pp. 11-17 ◽  
Author(s):  
G. N. J. Le Patourel ◽  
J. J. Zhou
Keyword(s):  
Relative Humidity ◽  
Adsorption Capacity ◽  
Adult Male ◽  
Amorphous Silica ◽  
Free Water ◽  
Blattella Germanica ◽  
German Cockroach ◽  
Oil Adsorption ◽  
Cockroach Blattella Germanica

AbstractAdult male German cockroaches were exposed to deposits of amorphous precipitated and pyrogenic silicas in continuous and discontinuous contact bioassays. LC50S of precipitated silicas in the former case generally increased with oil adsorption capacity of the dusts; variability in response in discontinuous contact bioassays was apparently due to grooming of appendages following pick-up of dust aggregates. The toxicity of silica deposits in half-treated choice boxes varied with relative humidity and was effectively eliminated at 95% r.h. or when free water was provided. Cockroaches accumulated in the untreated side of the box irrespective of r.h.; the mechanism of this effect is discussed.

Sign in / Sign up

Export Citation Format

Share Document