林产化学与工业2017，Vol.37Issue(3)：1-9,9.DOI:10.3969/j.issn.0253-2417.2017.03.001
磷酸活化法制备活性炭综述(Ⅰ)——磷酸的作用机理
Review on Phosphoric Acid Activation for Preparation of Activated Carbon (Ⅰ) : Roles of Phosphoric Acid
摘要
Abstract
Phosphoric acid activation is a principal method of the chemical activations to produce activated carbons,and has a history of around 30 years in the laboratory-scale investigation and the industrial application.In this article,the author systemically reviewed the roles that phosphoric acid played in the process of H3PO4 activation for the first time.From the chemical point of view,phosphoric acid played in promoting hydrolysis of biopolymers in lignocellulosic materials (1),catalyzing dehydration of biopolymers (2) and aromatization reaction of carbon atoms (3),initiating crosslink reaction with biopolymers (4),and evolution of pores (5).Moreover,three sequential stages were considered to be necessary for the deep incorporation of H3PO4 solution into the interior of botanic structures,which include fast diffusion,hydrolysis and post diffusion.Meantime,the roles that the activating agents play in H3PO4 activation and ZnCl2 activation are compared.关键词
活性炭/磷酸/活化Key words
activated carbon/phosphoric acid/activation分类
化学化工引用本文复制引用
左宋林..磷酸活化法制备活性炭综述(Ⅰ)——磷酸的作用机理[J].林产化学与工业,2017,37(3):1-9,9.基金项目
国家自然科学基金资助项目(31270621) （31270621）
