ID
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineCO2-to-methanol
Researchers from Penn State University (State College, Pa.; www.psu.edu) and…
Chemical Engineering MagazineChementator Briefs
Bio-isoprene Yokohama Rubber Co. (Tokyo, Japan; www.yokohama.com) has developed what…
BUSINESS NEWSTECHNICAL & PRACTICALFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEENVIRONMENTAL MANAGEREQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment

An inexpensive, renewable aerogel shows promise for handling oil spills

By Paul Grad |

Many methods have been developed to remove spilled oil and organic pollutants from water, but they all entail shortcomings, such as low absorption ability and poor buoyancy. Now, a team from the School of Light Industry and Chemical Engineering, Dalian Polytechnic University (Dalian, China; www.dipu.edu.cn), and Zhejiang Ji-Hua Group Co. (Hangzhou, China; www.jihuadyes.com) has prepared a low-cost, ultralight absorbent aerogel from renewable corn straw and filter paper with good performance and high absorption capacity. According to the team, the corn-straw-based spongy aerogel could serve as a good oil-absorbing material. To make the aerogel, raw corn straw is first added to an aqueous sodium hydroxide solution, and stirred for 4 hours at 30°C. Next, the pH is adjusted to 7 by the addition of HCl. After thorough filtration and washing with deionized water, the filtered corn straw particles are dried for 12 hours at 60°C. Small filter paper fragments are then mixed with the treated corn straw, and dispersed with a high-shear emulsifer. The suspension was then frozen at –25°C for 12 hours, followed by freeze drying at –55°C for 36 hours, resulting in a spongy aerogel. The hydrophobicity of the aerogel was improved by a silanation…
Related Content
Making multifunctional windows
Concern with energy efficiency has increased the popularity of window glass coatings that control the amount of sunlight that passes…
CO2-to-methanol
Researchers from Penn State University (State College, Pa.; www.psu.edu) and Dalian University of Technology (Dalian, China; www.dlut.edu.cn) have improved the…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Five Reasons Why Chemical Companies Are Switching to Tunable Diode Laser Analyzer Technology
Simplify sensor handling and maintenance with ISM
Three reasons to measure pH in-line
ABB Ability™ technology to transform BASF rotating equipment into intelligent machinery and improve uptime and reliability
Detect and correct anomalies early in your batch processes

View More

Live chat by BoldChat