title: From waste biomass to solid support: lignosulfonate as a cost-effective and renewable supporting material for catalysis.
abstract: Lignosulfonate (LS) is an organic waste generated as a byproduct of the cooking process in sulfite pulping in the manufacture of paper. In this paper, LS was used as an anionic supporting material for immobilizing cationic species, which can then be used as heterogeneous catalysts in some organic transformations. With this strategy, three lignin-supported catalysts were prepared including 1) lignin-SO3 Sc(OTf)2 , 2) lignin-SO3 Cu(OTf), and 3) lignin-IL@NH2 (IL=ionic liquid). These solid materials were then examined in many organic transformations. It was finally found that, compared with its homogeneous counterpart as well as some other solid catalysts that are prepared by using different supports with the same metal or catalytically active species, the lignin-supported catalysts showed better performance in these reactions not only in terms of activity but also with regard to recyclability.
authors.affiliation: Hubei Key Laboratory of Material Chemistry and Service Failure, Key Laboratory for Large-Format Battery, Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu road, Hongshan District, Wuhan 430074, (P.R. China), Fax: (+86) 2787543745.
authors.forename: Shaohuan
authors.initials: S
authors.lastname: Sun
authors.forename: Rongxian
authors.initials: R
authors.lastname: Bai
authors.forename: Yanlong
authors.initials: Y
authors.lastname: Gu
mesh_terms: D002384:Catalysis; D005240:Feasibility Studies; D007093:Imidazoles / Q000737:chemistry; D007220:Industrial Waste; D052578:Ionic Liquids; D008031:Lignin / Q000031:analogs & derivatives* / Q000737:chemistry; D008698:Mesylates / Q000737:chemistry; D012538:Scandium / Q000737:chemistry; D062611:Solid Waste
chemical_list: D007093:Imidazoles; D007220:Industrial Waste; D052578:Ionic Liquids; D008698:Mesylates; D062611:Solid Waste; C436603:scandium triflate; C001545:lignosulfuric acid; D008031:Lignin; C012077:trifluoromethanesulfonic acid; D012538:Scandium
keywords: acid catalysis; biomass; homogeneous catalysis; lignosulfonate; solid catalyst