Structure and Adsorption Properties to TVOC of Orange Peel Modified with KOH

作     者：CHEN Li YAN Rui XU Wen-Xiu XIONG Xiao-Ming 陈莉;闫瑞;徐文秀;熊晓明

作者机构：Chemistry and Chemical EngineeringXingtai UniversityXingtai 054001China 

出 版 物：《Chinese Journal of Structural Chemistry》 (结构化学（英文）)

年 卷 期：2020年第39卷第5期

页      面：873-883页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 0703[理学-化学] 

基　　金：Supported by the science and technology innovation project of Shanxi province universities(2019L0867) Key discipline project of"1331"project of Shanxi Province(098-091704) Philosophy and social sciences planning project of Shanxi Province(2019B389) 

主　　题：orange peel KOH modification TVOC adsorption structure 

摘      要：Food waste orange peel was employed as a raw material to prepare biomass adsorbent to solve the indoor Total Volatile Organic Compounds(TVOC).The preparation process of orange peel treated with KOH was optimized by the quadratic regression orthogonal rotation,and the regression model and optimal processing conditions were *** structure of the adsorbent was characterized by BET,SEM,TEM,EDS,XRD and FTIR *** adsorption properties and desorption regeneration were *** results showed the maximal removal rate Ymax was 9.4824%when KOH concentration was 0.3 mol/L,the soaking time of KOH was 26 h and that of HCl was 2.89 *** best single factor condition was the adsorbent with 40 mesh size and 6.0 *** adsorption of modified orange peel on TVOC conformed to the Freundlich models,which was more inclined to multi-layer active site *** adsorption law followed the quasi-second-order kinetic model(R^2=0.955),indicating the adsorption was a physico-chemical mixture but controlled by physical adsorption and it was a spontaneous endothermic *** modified orange peel exposed more sites and had stronger chemical groups,which were beneficial to *** adsorbent has a significantly better TVOC removal rate than other materials at 1%level,that is,modified orange peeldiatomiteactivated carbonbamboo charcoalmacroporous *** addition,it had good recycling and regeneration capacity.