title: Synthesis and characterization of a porous and hydrophobic cellulose-based composite for efficient and fast oil-water separation.
abstract: Oily wastewater is generated in diverse industrial processes, and its treatment has become crucial due to increasing environmental concerns. Herein, silanized cellulose was prepared by sol-gel reaction between microcrystalline cellulose (MCC) and hexadecyltrimethoxysilane (HDTMS) using for oil-water separation. The silanized cellulose was characterized by Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA). A higher mass ratio of HDTMS to MCC made silanized cellulose become looser, and showed lower water absorbency. The silanized cellulose exhibited specific separation performance towards vegetable oil-water mixture (not for mineral oil-water mixture) with separation efficiency of 99.93%. Moreover, the separation was fast with a water flux of 4628.5Lm(-2)h(-1). The separation efficiency still remained at 99.77% even after recycling for 10 times.
authors.affiliation: Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, Xinjiang University, Urumqi, Xinjiang 830046, China.
authors.forename: Xiangyun
authors.initials: X
authors.lastname: Wang
authors.affiliation: Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, Xinjiang University, Urumqi, Xinjiang 830046, China.
authors.forename: Shimei
authors.initials: S
authors.lastname: Xu
authors.affiliation: Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, Xinjiang University, Urumqi, Xinjiang 830046, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Tan
authors.affiliation: Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, Xinjiang University, Urumqi, Xinjiang 830046, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Du
authors.affiliation: Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, Xinjiang University, Urumqi, Xinjiang 830046, China. Electronic address: awangjd@126.com.
authors.forename: Jide
authors.initials: J
authors.lastname: Wang
mesh_terms: D002482:Cellulose / Q000138:chemical synthesis* / Q000737:chemistry*; D060326:Chemistry Techniques, Synthetic; D057927:Hydrophobic and Hydrophilic Interactions; D009821:Oils / Q000737:chemistry / Q000302:isolation & purification*; D016062:Porosity; D012821:Silanes / Q000737:chemistry; D013499:Surface Properties; D013997:Time Factors; D062065:Wastewater / Q000737:chemistry*
chemical_list: D002482:Cellulose; D009821:Oils; D012821:Silanes; D062065:Wastewater; C109691:microcrystalline cellulose
keywords: Composite; Hexadecyltrimethoxysilane; Hydrophobic; Microcrystalline cellulose; Oil–water separation