DOI: 10.1016/j.marpolbul.2017.10.012
Scopus记录号: 2-s2.0-85030841117
论文题名: Sol-gel derived flexible silica aerogel as selective adsorbent for water decontamination from crude oil
作者: Abolghasemi Mahani A. ; Motahari S. ; Mohebbi A.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 129, 期: 2 起始页码: 438
结束页码: 447
语种: 英语
英文关键词: Crude oil pollution
; Nanoporous adsorbent
; Seawater decontamination
; Silica aerogel
; Sol-gel method
Scopus关键词: Aerogels
; Crude oil
; Decontamination
; Desorption
; Mesoporous materials
; Oil spills
; Seawater
; Seawater effects
; Silica
; Silica gel
; Adsorption capacities
; Adsorption-desorption cycles
; Ambient pressure drying
; Crude oil pollution
; Methyltrimethoxysilane
; Nanoporous adsorbents
; Silica aerogels
; Water decontamination
; Sol-gel process
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: 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. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88370
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: School of Chemical Engineering, Faculty of Engineering, University of Tehran, P. O. Box: 11365/4563, Tehran, Iran; Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
Recommended Citation:
Abolghasemi Mahani A.,Motahari S.,Mohebbi A.. Sol-gel derived flexible silica aerogel as selective adsorbent for water decontamination from crude oil[J]. Marine Pollution Bulletin,2018-01-01,129(2)