Superhydrophobic cotton cellulose (CC) aerogel was prepared from budget cotton with huge output.CC aerogels were synthesized by using commercial cotton extract as a precursor through the nano-self-assembly process,CO2...Superhydrophobic cotton cellulose (CC) aerogel was prepared from budget cotton with huge output.CC aerogels were synthesized by using commercial cotton extract as a precursor through the nano-self-assembly process,CO2 supercritical drying process,and vapor deposition.Typical,uniform hydrophobic CC aerogel structure can be confirmed by several characterization techniques.Maximum specific surface areas before and after modification are 213.80 m^(2)·g^(-1) and 184.33 m^(2)·g^(-1)with average pore sizes at 14.01 nm and 32.56 nm.The water contact angle is up to 153°,showing its superhydrophobic property.The maximum adsorption efficiency can be up to 16.0 g·g^(-1),which exhibits excellent cycling property after 5 adsorption tests.The oil absorption mechanism of the superhydrophobic CC aerogels is investigated in detail as well.This superhydrophobic CC aerogel has excellent adsorption performance and simple,rapid,effective oil contamination treatment which has promising applications in the field of oil adsorption and water remediation in oil adsorption.展开更多
基金Funded by the Key Research and Development Project of Jiangsu Province(Nos.BE2019734,BE2017151,and BE2016171)the Program of Science and Technology of Suqian City(Nos.M201704,H201801,and H201803)+2 种基金the National Natural Science Foundation of China(Nos.51702156 and 81471183)the Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(IRT15R35)the Priority Academic Program Development of Jiangsu Higher Education Institutions and the Brand Major Program Development of Jiangsu Higher Education Institutions(PPZY2015B128)。
文摘Superhydrophobic cotton cellulose (CC) aerogel was prepared from budget cotton with huge output.CC aerogels were synthesized by using commercial cotton extract as a precursor through the nano-self-assembly process,CO2 supercritical drying process,and vapor deposition.Typical,uniform hydrophobic CC aerogel structure can be confirmed by several characterization techniques.Maximum specific surface areas before and after modification are 213.80 m^(2)·g^(-1) and 184.33 m^(2)·g^(-1)with average pore sizes at 14.01 nm and 32.56 nm.The water contact angle is up to 153°,showing its superhydrophobic property.The maximum adsorption efficiency can be up to 16.0 g·g^(-1),which exhibits excellent cycling property after 5 adsorption tests.The oil absorption mechanism of the superhydrophobic CC aerogels is investigated in detail as well.This superhydrophobic CC aerogel has excellent adsorption performance and simple,rapid,effective oil contamination treatment which has promising applications in the field of oil adsorption and water remediation in oil adsorption.
