A comparative study of adsorption behavior of rifampicin,streptomycin,and ibuprofen contaminants from aqueous solutions onto chitosan:Dynamic interactions,kinetics,diffusions,and mechanisms  

作　　者：Ensan Waatriah E.S.Shahrin Nur Alimatul Hakimah Narudin Nurulizzatul Ningsheh MShahri Muhammad Nur Jun-Wei Lim Muhammad Roil Bilad Abdul Hanif Mahadi Jonathan Hobley Anwar Usman 

机构地区：[1]Department of Chemistry,Faculty of Science,Universiti Brunei Darussalam,Jalan Tungku Link,Gadong,BE1410,Brunei Darussalam [2]Center for Plasma Research,Integrated Laboratory,Universitas Diponegoro,Tembalang,Semarang,50275,Indonesia [3]HICoE-Centre for Biofuel and Biochemical Research,Institute of Self-Sustainable Building,Department of Fundamental and Applied Sciences,Universiti Teknologi PETRONAS,32610,Seri Iskandar,Perak Darul Ridzuan,Malaysia [4]Faculty of Integrated Technologies,Jalan Tungku Link,Gadong,BE1410,Brunei Darussalam [5]Centre for Advanced Material and Energy Sciences,Universiti Brunei Darussalam,Jalan Tungku Link,Gadong,BE1410,Brunei Darussalam [6]Department of Biomedical Engineering,National Cheng Kung University,No.1 University Road,Tainan City 701,Taiwan

出　　处：《Emerging Contaminants》2023年第1期20-32,共13页新兴污染物（英文）

基　　金：Dr.Jonathan Hobley is grateful to National Cheng Kung University's NCKU90 distinguished visiting scholar program for hosting his research;MOST for providing research funding under project number 111-2222-E-006-007.

摘　　要：Adsorptive removal and dynamic interaction of three different pharmaceutical pollutants,namely rifampicin(RIF),streptomycin(STM),and ibuprofen(IBU)onto chitosan were systematically investigated using a batch adsorption technique at different processing parameters.In this study,chitosan was derived from mud-crab shells,as an innovative way to use the waste from marine foods as adsorbents.The kinetics,intraparticle diffusion,mechanism,and thermodynamics of the adsorption were systematically evaluated and analyzed using kinetic models,Boyd mass transfer and WebereMorris intraparticle diffusion models,Langmuir,Freundlich,DubinineRadushkevich,and Temkin isotherm models,and the Gibbs equation.The adsorption isotherm of the larger molecules,RIF and STM,could be explained by the Langmuir isotherm model,in contrast,that of IBU,which is a much smaller molecule,followed the Freundlich isotherm model.The maximum adsorption capacity of RIF,STM,and IBU on chitosan was estimated to be 66.91 mg g^(-1),11.00 mg g^(-1),and 24.21 mg g^(-1),respectively,which are higher compared to those on a variety of agricultural wastes,suggesting that this biopolymer is a potential practical and economical adsorbent to remove the pharmaceutical compounds from wastewater.The adsorption mechanism of the pharmaceutical compounds on chitosan is proposed based on the vibrational spectroscopic analyses,XRD patterns,and DSC thermograms of the biopolymer before and after adsorption process.

关 键 词：Adsorption RIFAMPICIN STREPTOMYCIN IBUPROFEN CHITOSAN Mud-carb shells 

分 类 号：O64[理学—物理化学]