Abstract:
:Oil spills are the most important threat to the sea ecosystem. The present study is an attempt to investigate the effects of sol-gel parameters on seawater decontamination from crude oil by use of flexible silica aerogel. To this goal, methyltrimethoxysilane (MTMS) based silica aerogels were prepared by two-step acid-base catalyzed sol-gel process, involving ambient pressure drying (APD) method. To investigate the effects of sol-gel parameters, the aerogels were prepared under two different acidic and basic pH values (i.e. 4 and 8) and varied ethanol/MTMS molar ratios from 5 to 15. The adsorption capacity of the prepared aerogels was evaluated for two heavy and light commercial crude oils under multiple adsorption-desorption cycles. To reduce process time, desorption cycles were carried out by using roll milling for the first time. At optimum condition, silica aerogels are able to uptake heavy and light crude oils with the order of 16.7 and 13.7, respectively.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Abolghasemi Mahani A,Motahari S,Mohebbi Adoi
10.1016/j.marpolbul.2017.10.012subject
Has Abstractpub_date
2018-04-01 00:00:00pages
438-447issue
2eissn
0025-326Xissn
1879-3363pii
S0025-326X(17)30829-9journal_volume
129pub_type
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