文献类型：期刊文献

英文题名：Lignin Based Activated Carbon Using H3PO4 Activation

作者：Yang, Zhongzhi[1,2] Gleisner, Roland[2] Mann, Doreen H.[2] Xu, Junming[1] Jiang, Jianchun[1] Zhu, J. Y.[2]

第一作者：Yang, Zhongzhi;杨中志

通信作者：Zhu, JY[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn Lab Biomass Chem Utilizat, Key & Open Lab Forest Chem Engn,SFA,Key Lab Bioma, Nanjing 210042, Peoples R China;[2]US Forest Serv, USDA, Forest Prod Lab, Madison, WI 53726 USA

年份：2020

卷号：12

期号：12

起止页码：1-16

外文期刊名：POLYMERS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000602407800001)】；

基金：This work was partially supported by the US Forest Service, and the Fundamental Research Funds of Chinese academy of Forestry (CAFYBB2019GC001-15), National Natural Science Foundation of China (31530010).

语种：英文

外文关键词：lignin; activated carbon; phosphoric acid activation; dye adsorption

摘要：Activated carbon (AC) with a very high surface area of over 2000 m(2)/g was produced from low sulfur acid hydrotropic lignin (AHL) from poplar wood using H3PO4 at a moderate temperature of 450 degrees C (AHL-AC6). ACs with similar surface areas were also obtained under the same activation condition from commercial hardwood alkali lignin and lignosulfonate. Initial evaluation of AC performance was carried out using nitrogen adsorption-desorption and dye adsorption. AHL-AC6 exhibited the best specific surface area and dye adsorption performance. Furthermore, the adsorption results of congo red (CR) and methylene blue (MB) showed AHL-AC6 had greater adsorption capacity than those reported in literature. The dye adsorption data fit to the Langmuir model well. The fitting parameter suggests the adsorption is nearly strong and near irreversible, especially for MB. The present study for the first time provided a procedure for producing AC from lignin with Brunauer-Emmett-Teller (BET) surface area >2000 m(2)/g using low cost and low environmental impact H3PO4 at moderate temperatures.