Paper Title:
Preparation and Characterization of Organic Modified Sepiolite Sorbent by Microwave Radiation
  Abstract

Based on the pretreatment including acidification, purification and sodium ion exchange, the crude sepiolite was modified by microwave radiation-wet process and CTAB as modifier. The orthogonal experiment was used to optimize the modification process. Then the crude sepiolite and modified sepiolite were characterized by SEM, FTIR, XRD, TG-DSC and BET. The results showed that the optimum modification process parameters included CTAB dosage (1.0 cation exchange capacity (CEC)), microwave radiation time (4 minutes), ethanol concentration (50%/V:V) and radiation power (800W). Compared with crude sepiolite, oil removal rate from steel rolling wastewater increased from 41.34% to 96.78% with modified sepiolite prepared at the best process. Characteristic peaks of organic functional groups, enlarged interlayer distance (0.007nm larger than crude sepiolite), enhanced hydrophobicity, amplified specific surface area (104.4m2/g) and mesopore volume had been received from above characterization methods after modification. All of the above had proved that CTAB was successfully grafted onto sepiolite.

  Info
Periodical
Advanced Materials Research (Volumes 211-212)
Edited by
Ran Chen
Pages
172-176
DOI
10.4028/www.scientific.net/AMR.211-212.172
Citation
S. J. Ma, N. F. Wu, F. W. Li, J. Yang, M. L. Fu, H. W. Jia, J. Xiao, "Preparation and Characterization of Organic Modified Sepiolite Sorbent by Microwave Radiation", Advanced Materials Research, Vols. 211-212, pp. 172-176, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Da Hua Jiang, An Gui Li, Fa En Shi, Ru Shan Ren
Materials Engineering
Abstract:Natural sepiolite composites and selected sepiolite composites were prepared in liquid phase by intercalation, and the properties of...
1647
Authors: Fang Wen Li, Juan Yang, Song Jiang Ma, Nian Fen Wu, Mei Ling Fu, Hai Wu Jia, Qian Wu
Abstract:The effect of operating conditions, such as adsorption time, adsorbent dosage, influent pH and influent oil concentration, on the performance...
786
Authors: Dai Mei Chen, Hai Peng Ji, Jian Xin Wang, Jian Chen, Xin Long Luan, Zhi Guo Xia
Composites
Abstract:Nitrogen doped TiO2/sepiolite composite materials (N-TiO2/sep) with different nitrogen contents were prepared by a...
597
Authors: Jian Hong Deng, Wen Biao Li, Da Hua Jiang
Chapter 3: Efficient Energy-Saving Building Sanitary Equipment and Systems
Abstract:Lauric acid/stearic acid as the binary phase change materials, modified sepiolite as the inorganic carrier, organic/inorganic composite...
807
Authors: Kang Ma, Bei Chen Lan, Zhen Hua Guo
Chapter 3: Construction and Materials Science
Abstract:To improve the compatibility and dispersion of the sepiolite in polymers, a surfactant of octadearyl dimethyl ammonium chloride(OTAC)was used...
182