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

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.

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

e-Polymers ◽

10.1515/epoly.2009.9.1.1079 ◽

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.

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

Toxics ◽

10.3390/toxics9080186 ◽

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.

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

Bulletin of Entomological Research ◽

10.1017/s0007485300045855 ◽

1990 ◽

Vol 80 (1) ◽

pp. 11-17 ◽

Cited By ~ 3

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.

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One-Step, Large-Scale Blow Spinning to Fabricate Ultralight, Fibrous Sorbents with Ultrahigh Oil Adsorption Capacity

ACS Applied Materials & Interfaces ◽

10.1021/acsami.0c20447 ◽

2021 ◽

Vol 13 (5) ◽

pp. 6631-6641

Author(s):

Han Zhang ◽

Rong Wang ◽

Pan Li ◽

Luna Jia ◽

Feng Wang ◽

...

Keyword(s):

Adsorption Capacity ◽

Large Scale ◽

One Step ◽

Oil Adsorption

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Removal of oil spills by novel developed amphiphilic chitosan-g-citronellal schiff base polymer

Scientific Reports ◽

10.1038/s41598-021-99241-9 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Ahmed Mohamed Omer ◽

Basant Yossry Eweida ◽

Tamer Mahmoud Tamer ◽

Hesham M. A. Soliman ◽

Safaa Mohamed Ali ◽

...

Keyword(s):

Schiff Base ◽

Crude Oil ◽

Adsorption Capacity ◽

Surface Area ◽

Oil Spills ◽

Sea Water ◽

Morphological Changes ◽

Operational Conditions ◽

Bet Analysis ◽

Oil Adsorption

AbstractA novel chitosan grafted citronellal (Ch-Cit) schiff base amphiphilic polymer was developed for the adsorptive removal of oil spills. The chemical structure was verified by FT-IR spectroscopy and 1H NMR spectrometer, while the morphological changes and surface area were investigated by SEM and BET analysis tools. The amphiphilic character of Ch-Cit schiff base was controlled through variation of the grafting percentage (G%) of citronellal from 11 to 61%. Dramatic changes in the ion exchange capacity (IEC), solubility and water uptake profiles were established, while the oil adsorption capacity was founded in direct relation with the G (%) of citronellal. Operational conditions such as oil amount, adsorption time, adsorbent dose and agitation speed were investigated. The developed Ch-Cit schiff base exhibited a higher surface area (115.94 m2/g) compared to neat chitosan (57.78 m2/g). The oil adsorption capacity of the Ch-Cit schiff base was greatly improved by 166% and 120% for light crude and heavy crude oil, respectively. Finally, the adsorption process was optimized using response surface methodology (RSM).The results substantiate that the amphiphilic Ch-Cit schiff base could be efficiently applied as a low-cost oil-adsorbent for the removal of crude oil spills from sea-water surfaces.

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Oil-Water Adsorptive Properties of Chemically Treated Sugarcane Bagasse

Environment and Natural Resources Research ◽

10.5539/enrr.v6n1p35 ◽

2015 ◽

Vol 6 (1) ◽

pp. 35 ◽

Cited By ~ 3

Author(s):

Handojo Djati Utomo ◽

Phoon Ru Yi ◽

Shen Zhonghuan ◽

Ng Li Hui ◽

Lim Zheng Bang

Keyword(s):

Adsorption Capacity ◽

Sugarcane Bagasse ◽

Oil Pollution ◽

Lignin Content ◽

Water Environment ◽

Column Experiment ◽

Natural Material ◽

Water Mixture ◽

Oil Adsorption ◽

Adsorptive Properties

<p class="1Body">Among the contaminants plaguing our waters today, oil remains one of the most pervasive and challenging contaminant to remove. Oil pollution occurs not only through factory discharge, but also by accident spills from the fuel of the vehicle or the transportation of oil. Sugarcane bagasse (SB) is an abundant agricultural by-product containing almost half of cellulose and one quarter of lignin. After chemical treatments SB can be modified their hydrophobicity leading to improve its oil adsorptive properties. In a column experiment containing 1 g of SB, oil was able to be adsorbed from oil and water mixture by, from the highest to the lowest uptake, AASB, ASSB, NSB, SSB and BSB with the average oil adsorption capacity of 13.0 mL/g, 11.25 mL/g, 10.50 mL/g, 9.0 mL/g and 8.75 mL/g respectively. The results were concurrently meeting the result of material characterisation using FTIR, where acetic acid treated SB (AASB) consists of high lignin leading to high hydrophobicity. On the other hand, BSB showed the lowest oil adsorption capacity and more hydrophilic due to the lowest amount of lignin present in SB. The result showed a potential use of natural material of SBs with high lignin content to tackle oil spill in water environment.</p>

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Electrospun Porous Structure Fibrous Film with High Oil Adsorption Capacity

ACS Applied Materials & Interfaces ◽

10.1021/am300544d ◽

2012 ◽

Vol 4 (6) ◽

pp. 3207-3212 ◽

Cited By ~ 285

Author(s):

Jing Wu ◽

Nü Wang ◽

Li Wang ◽

Hua Dong ◽

Yong Zhao ◽

...

Keyword(s):

Porous Structure ◽

Adsorption Capacity ◽

Oil Adsorption

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Poly(Methyl Methacrylate) Grafted Wheat Straw for Economical and Eco-friendly Treatment of Oily Wastewater.

10.21203/rs.3.rs-1013520/v1 ◽

2021 ◽

Author(s):

Kavya Suresh ◽

Muhammad Amirul Islam ◽

Masoud Rastgar ◽

Brian A. Fleck ◽

Mohtada Sadrzadeh

Keyword(s):

Hydrogen Peroxide ◽

Contact Angle ◽

Wheat Straw ◽

Adsorption Capacity ◽

Diesel Oil ◽

Oily Wastewater ◽

Alkaline Hydrogen Peroxide ◽

Multilayer Adsorption ◽

Oil Adsorption ◽

Pre Treatment

Abstract The sustainable development of oil-gas and petrochemical industries necessitates the development of cost-effective and eco-friendly technologies to treat mass-produced oily wastewater discharge from these industries. This study applied a simple radical polymerization to enhance the oil adsorption efficiency of agricultural waste biomass wheat straw (WS) by grafting biocompatible PMMA. Diesel oil adsorption from oil-in-water emulsion using the PMMA grafted WS was thoroughly studied for the first time in the quest of developing an economical and eco-friendly adsorbent for the adsorptive treatment of oily wastewater. Initially, the pristine WS was subjected to alkaline hydrogen peroxide pre-treatment to remove the materials that can lead to secondary pollution during operation, to expose the reactive cellulose surface sites that can enhance grafting efficiency, and to break the inner interconnected tubular pore channel walls; otherwise, the tubular pore channels will not be accessible to viscous oil due to limited capillary penetration. The success of pre-treatment of pristine WS and the subsequent PMMA grafting were evaluated by SEM morphology, BET analysis, EDX and XPS elemental analysis, FTIR, and contact angle measurements. SEM images indicated that the inner interconnected tubular pore channels of WS are exposed significantly upon alkaline hydrogen peroxide pretreatment. PMMA grafting substantially improved oil adhesivity, as evident from the 0º oil contact angle for WS-g-PMMA film. Oil absorptivity was thoroughly evaluated by batch oil adsorption study using variable adsorbent dosages and oil emulsion concentrations. The WS-g-PMMA exhibited explicitly higher adsorption capacity (ca. 1129 mg/g) compared to that of the pristine (ca. 346 mg/g) and pretreated (ca. 741 mg/g) due to high accessibility to exposed inner interconnected tubular pore channels and strong hydrophobic interactions between the WS-g-PMMA surface and oil droplets. Langmuir and Freundlich adsorption isotherms were applied to evaluate the adsorption mechanism. The experimental data fit well with the Freundlich isotherm, clearly indicating the heterogeneity of adsorption sites, as well as multilayer adsorption of oil. The experimental adsorption data fit well with the pseudo-second-order rate equation with R2 as high as 0.999, which confirmed the multilayer adsorption of oil. The high oil adsorption capacity of the WS-g-PMMA makes it a very promising material for oily wastewater treatment. This will simultaneously resolve issues with the treatment of oily wastewater and facilitate the recycling of abundant quantities of waste WS. This study serves as a reference for analyzing the suitability of wheat straw for treating extremely challenging waste streams, such as SAGD produced water containing BTEX and PAHs that are also hydrophobic like diesel oil.

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