天津科技大学学报2017，Vol.32Issue(2)：36-41,6.DOI:10.13364/j.issn.1672-6510.20150223
新型锂离子筛HNbO3的制备及其吸附特性
Preparation and Adsorption Properties of a New Type Lithium Ion-sieve HNbO3
摘要
Abstract
A new type of lithium ion-sieve HNbO3 was prepared through eluting LiNbO3 with nitric acid,using Li2CO3and Nb2O5 as raw materials in a solid state reaction.The relationship between the molar amount of hydrogen ion and the elution rate of lithium and niobium was discussed.Moreover,the saturated adsorption amount and the adsorption kinetics of HNbO3 were studied.It was found that the niobium dissolving rate is about 0%, and the extraction rate of lithium is 83%,.The satu-rated adsorption capacity of Li+is about 16 mg/g in a mixed simulation solution containing Li+,which reaches 92.5%,of the theoretical value(17.3 mg/g).The adsorption process is in conformity with both the pseudo-second-order kinetic equation and the Langmuir isotherm equation,which suggests the adsorption process belongs to monolayer and mainly chemical ad-sorption.关键词
HNbO3/洗脱/吸附动力学Key words
HNbO3/elution/adsorption kinetics分类
化学化工引用本文复制引用
王昶,田宗美,豆宝娟,孔维怡..新型锂离子筛HNbO3的制备及其吸附特性[J].天津科技大学学报,2017,32(2):36-41,6.基金项目
天津市科委计划项目(14ZCDGNC00097) （14ZCDGNC00097）
