Removal of Low-concentration Ammonia from Ambient Air by Aluminophosphates  

作　　者：LI Chunyang WU Shujie YU Guiyang YANG Xuwei LIU Gang ZHANG Wenxiang 

机构地区：[1]Key Laboratory of Surface and Interface Chemistry of Jilin Province, College of Chemistry, Jilin University, Changchun 130021, P. R. China

出　　处：《Chemical Research in Chinese Universities》2018年第3期480-484,共5页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China（No.21473074） and the Open Project of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, China（No.2017-03）.

摘　　要：A series of aluminumphosphate materials was prepared and used as adsorbents for the removal of ammonia at low concentrations. The influence of various preparation parameters, including the pH value of sol, calcination temperature and molar ratio of P/A1, on the structure and surface properties as well as adsorption capacity was investigated. The results showed that large amount of P-OH present on the surface of aluminophosphates was suitable for the removal of ammonia. They were the major source of weak Br6nsted acid sites and acted as the main active centers for capturing ammonia.A series of aluminumphosphate materials was prepared and used as adsorbents for the removal of ammonia at low concentrations. The influence of various preparation parameters, including the pH value of sol, calcination temperature and molar ratio of P/A1, on the structure and surface properties as well as adsorption capacity was investigated. The results showed that large amount of P-OH present on the surface of aluminophosphates was suitable for the removal of ammonia. They were the major source of weak Br6nsted acid sites and acted as the main active centers for capturing ammonia.

关 键 词：Ammonia adsorption ALUMINOPHOSPHATE Air purification Weak acid Porous material 

分 类 号：TQ113.247[化学工程—无机化工] TP393[自动化与计算机技术—计算机应用技术]