Preparation of corn straw based spongy aerogel for spillage oil capture

Li, Yuan; Liu, Xiaodong; Cai, Wei; Cao, Yafeng; Yan-feng, Sun; Tan, Fengzhi

doi:10.1007/s11814-018-0010-3

Cited by 26 publications

(12 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Porous materials based on biopolymers present a tremendous variety of applications such as scaffolds for cell growth, drug carriers [1,2], thermal or acoustic insulation, [3,4] and oil spill remediation [5,6]. The properties required for each application (surface chemistry, surface area, pore volume, and pore size) depend on the starting material as well as on the production process.…”

Section: Introductionmentioning

confidence: 99%

Porous Starch Materials via Supercritical- and Freeze-Drying

Baudron

Gurikov

Смирнова

et al. 2019

Gels

View full text Add to dashboard Cite

The production of porous materials based on starch has been explored with supercritical drying—yielding aerogel—and freeze-drying. The two drying procedures were applied on the same gelling solution of amylomaize starch pasted at 140 °C and for two concentrations (5 and 10 wt.%). After gelation and retrogradation, water from the samples to be supercritically dried was exchanged to ethanol. The resulting starch aerogel presented high specific surface area (197 m2/g). Freeze-drying was assessed by investigating the effect of the gelation, retrogradation, freezing temperature, and sublimation pressure. The resulting starch materials were macroporous, with limited specific surface area and limited mechanical integrity. Cohesive open cell foam with pore size of ~20 µm was produced by quenching the hot starch melt in liquid nitrogen. The highest specific surface area obtained with freeze-drying was 7.7 m2/g for the hot starch melt frozen at −20 °C.

show abstract

Section: Introductionmentioning

confidence: 99%

Porous Starch Materials via Supercritical- and Freeze-Drying

Baudron

Gurikov

Смирнова

et al. 2019

Gels

View full text Add to dashboard Cite

show abstract

“…The samples were then taken out from the oil, drained for 1 min, and weighed again ( m 1 ). The maximum sorption capacity ( Q ) of the oil was calculated as follows ( Li et al, 2018a ):…”

Section: Methodsmentioning

confidence: 99%

Cellulose aerogel composites as oil sorbents and their regeneration

Paulauskienė¹,

Uebe²,

Ziogas³

2021

PeerJ

View full text Add to dashboard Cite

Background With every oil tanker comes the risk of an accident and oil spill. Sorbents are the most suitable means to remove oil spills. Aerogels as sorbents have high porosity and can be made from cellulose from paper waste. The literature does not distinguish between paper and cardboard as sources of cellulose aerogels and little is known about composites of cellulose aerogels consisting of cellulose fibres and chemically untreated, unprocessed fibres or particles of straw, wool, macroalgae or cellulose acetate from cigarette butts. In this study, the sorption properties for marine diesel oil and biodiesel of such aerogels and their regenerative capacity with bioethanol were investigated. Methods Cellulose aerogels were prepared from office paper and cardboard waste without and with chemically untreated algae, straw, wool and cellulose acetate as a composite by freeze drying. All samples were hydrophobised with methylsilane. The density to calculate the porosity and the contact angle were determined. Then the sorption capacity was determined over five cycles of sorption of oil and regeneration with bioethanol. Results The average contact angle of all samples was 125°, indicating hydrophobicity. Paper-based aerogels were found to consistently have higher sorption capacities for biodiesel, marine diesel oil and bioethanol than cardboard-based aerogels. In particular, the wool/cellulose aerogel composite was found to have better sorption capacity for biodiesel, marine diesel oil and bioethanol than all other samples. The cellulose acetate/cellulose aerogel composite showed significantly higher sorption capacities than the paper and cardboard control samples (highest value is 32.25 g g−1) only when first used as a sorbent for biodiesel, but with a rapid decrease in the following cycles.

show abstract

“…Several articles carried out a comparison between traditional products on the market (produced by conventional manufacturing chain, from raw materials different from byproducts) and bio-based alternatives from organic residues, identifying as the most common benefit the use of low value residual biomass available in huge quantities, for example wheat, rice, and maize [16,[20][21][22][23][24]. A common goal of the processes presented by the scientific literature about organic residue exploitation is the green production, meaning low energy consumption and nontoxic agent applications [15,19,23,25].…”

Section: Introduction 1state Of the Art Of Exploitation Of Agricultur...mentioning

confidence: 99%

Environmental Sustainability Analysis of Case Studies of Agriculture Residue Exploitation

et al. 2021

View full text Add to dashboard Cite

The agriculture sector produces significant amounts of organic residues and the choice of the management strategy of these flows affects the environmental sustainability of the sector. The scientific literature is rich with innovative processes for the production of bio-based products (BBP) from agriculture residues, aimed at the implementation of circular economy principles. Based on literature data, the present paper performed a life cycle assessment and assessed the environmental sustainability of five processes for the exploitation of rice and wheat straw, tomato pomace, and orange peel. The analysis identified as significant issues the high energy demand and the use of high impact organic solvent. The comparison of BBP with conventional products showed higher environmental loads for the innovative processes that used organic residues (except for rice straw case). The obtained results do not want to discourage the circular strategy in the agriculture sector, but rather to draw the attention of all stakeholders to the environmental sustainability aspects, focusing on the necessity to decrease the electricity demand and identify ecological agents to use in BBP manufacturing, in agreement with the most recent European policies.

show abstract

Preparation of corn straw based spongy aerogel for spillage oil capture

Cited by 26 publications

References 52 publications

Porous Starch Materials via Supercritical- and Freeze-Drying

Porous Starch Materials via Supercritical- and Freeze-Drying

Cellulose aerogel composites as oil sorbents and their regeneration

Environmental Sustainability Analysis of Case Studies of Agriculture Residue Exploitation

Contact Info

Product

Resources

About