title: High emission reduction performance of a novel organic-inorganic composite filters containing sepiolite mineral nanofibers.
abstract: In this work, a new organic-inorganic composite filter was prepared. The thickness, pore size, air permeability, bursting strength and microstructure were characterized systematically, proving that coatings had regulatory effect on filters physical properties. Benefitting from the distinct coatings containing 5% sepiolite nanofibers after five times dilution, the physical properties of corresponding air filter exhibits the most favorable performance and meet the standard of air filter. When used as fuel filter, it satisfies the fuel filter standard and achieves the best performance after six times dilution. The contrast test on engine emission was taken based on auto filters coated with/without as prepared nanofibers. An obvious decrease in the emission of carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxide (NOx) can be observed after installation of composite filter on vehicles. Under the high idle condition, gasoline engine emission decreased by 8.13%, 11.35% and 44.91% for CO, HC and NOx, respectively. When tested in the low idle condition, engine emission reduced by 0.43%, 1.14% and 85.67% for CO, HC and NOx, respectively. The diesel engine emissions of CO, NOxand total amount of HC and NOxdecreased by 32.26%, 3.28% and 4.66%, respectively. The results illustrate the composite installation exhibits satisfactory emission reduction effect.
authors.affiliation: Institute of Power Source &Ecomaterials Science, Hebei University of Technology, 300130 Tianjin, China.|Key Laboratory of Special Functional Materials for Ecological Environment and Information, Hebei University of Technology, Ministry of Education, Tianjin 300130, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.affiliation: Institute of Power Source &Ecomaterials Science, Hebei University of Technology, 300130 Tianjin, China.|Key Laboratory of Special Functional Materials for Ecological Environment and Information, Hebei University of Technology, Ministry of Education, Tianjin 300130, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Institute of Power Source &Ecomaterials Science, Hebei University of Technology, 300130 Tianjin, China.|Key Laboratory of Special Functional Materials for Ecological Environment and Information, Hebei University of Technology, Ministry of Education, Tianjin 300130, China.
authors.forename: Jinsheng
authors.initials: J
authors.lastname: Liang
authors.affiliation: Institute of Power Source &Ecomaterials Science, Hebei University of Technology, 300130 Tianjin, China.|Key Laboratory of Special Functional Materials for Ecological Environment and Information, Hebei University of Technology, Ministry of Education, Tianjin 300130, China.
authors.forename: Qingguo
authors.initials: Q
authors.lastname: Tang
authors.affiliation: Institute of Power Source &Ecomaterials Science, Hebei University of Technology, 300130 Tianjin, China.|Key Laboratory of Special Functional Materials for Ecological Environment and Information, Hebei University of Technology, Ministry of Education, Tianjin 300130, China.
authors.forename: Yanxia
authors.initials: Y
authors.lastname: Li
authors.affiliation: Institute of Power Source &Ecomaterials Science, Hebei University of Technology, 300130 Tianjin, China.|Key Laboratory of Special Functional Materials for Ecological Environment and Information, Hebei University of Technology, Ministry of Education, Tianjin 300130, China.
authors.forename: Zengyao
authors.initials: Z
authors.lastname: Shang