文献类型：期刊文献

英文题名：Lignin-inspired porous polymer networks as high-performance adsorbents for the efficient removal of malachite green dye

作者：Jin, Can[1] Liu, Yunlong[1,3] Fan, Junyu[2] Liu, Tingfeng[2] Liu, Guifeng[1] Chu, Fuxiang[1] Kong, Zhenwu[1]

第一作者：金灿

通信作者：Chu, FX[1];Kong, ZW[1]|[a0005728d87cb2daf502d]储富祥;[a0005be4642aed69bf127]孔振武;

机构：[1]Inst Chem Ind Forest Prod, Chinese Acad Forestry, Natl Engn Lab Biomass Chem Utilizat, Key Lab Forest Chem Engn, Nanjing 210042, Jiangsu, Peoples R China;[2]Nanjing Inst Technol, Sch Environm Engn, Nanjing 211167, Jiangsu, Peoples R China;[3]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing 210042, Peoples R China

年份：2022

卷号：643

外文期刊名：COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

收录：;EI(收录号：20221211817577);Scopus(收录号：2-s2.0-85126519023);WOS:【SCI-EXPANDED(收录号:WOS:000794189100002)】；

基金：This work was supported by the Fundamental Research Funds of CAF (CAFYBB2019QB008) , National Natural Science Foundation of China (31890774, 31890770, 31971615) , Fundamental Research Funds of Jiangsu Key Laboratory of Biomass Energy and Material (JSBEM-S-201806) , and Natural Science Foundation of Jiangsu Province (BK20181123) .

语种：英文

外文关键词：Lignin derivatives; Porous materials; Adsorption; Organic dyes; Wastewater treatment

摘要：Herein, a series of porous polymer networks (LPPNs) were prepared from sustainable lignin-derivatized aldehyde monomers. It was interesting to discover that the 4-hydroxy benzaldehyde (H type) was favorable to promote the formation of the porous network LPPN-H with the largest BET surface area (739.4 m(2)/g) and pore volume (1.78 cm(3)/g) over that of LPPN-G (G type) and LPPN-S (S type), emphasizing the various geometrical shapes of building blocks significantly affected the porosity properties. The porous networks and abundant functional groups of LPPNs enabled efficient and rapid adsorption of malachite green (MG) dye. Strongly depending on the porosity parameters, LPPN-H gave a higher adsorption capacity for MG (Q(max) = 1449.8 mg/g) than LPPN-G and LPPN-S, which exceeded many other reported adsorbents. The adsorption process could be well described by the pseudo-second-order kinetic model and Langmuir isotherm model, respectively. Study in adsorption mechanism demonstrated that the electrostatic force, hydrogen bonding, and pi-pi stacking interactions existed in MG adsorption onto LPPNs. Besides, LPPN-H exhibited high stability and retained over 90% removal efficiency after 10 cycles. Together with the excellent adsorption behaviors and unique porosity properties, the low-cost and green LPPNs exhibited promising utilization in wastewater purification.