Structural evolution of chitosan–palygorskite composites and removal of aqueous lead by composite beads
作者： Ruhaida Rusmin , Binoy Sarkar , Yanju Liu , Stuart McClure , Ravi Naidu
DOI: 10.1016/J.APSUSC.2015.06.124
关键词:
摘要: Abstract This paper investigates the structural evolution of chitosan–palygorskite (CP) composites in relation to variable mass ratios their individual components. The composite beads’ performance lead (Pb) adsorption from aqueous solution was also examined. beads were prepared through direct dispersion chitosan and palygorskite at 1:1, 1:2 2:1 (CP1, CP2 C2P, respectively). Analyses by Fourier transform Infrared (FTIR) spectroscopy, Brunauer–Emmett–Teller (BET) surface area, X-ray diffraction (XRD) scanning electron microscopy (SEM) confirmed dependence composites’ characteristics on composition ratio. exhibited a better Pb than pristine materials (201.5, 154.5, 147.1, 27.7 9.3 mg g −1 for CP1, CP2, palygorskite, Adsorption CP1 followed Freundlich isothermal model, while C2P fitted Langmuir model. Kinetic studies showed that all pseudo-second order model with pore diffusion acting as major rate governing step. properties specific interaction between most critical factors influenced capabilities removing toxic metals water.
harvard.edu
elsevier.com
sci-hub.se 参考文章(47)
George N Tzanakakis, Aristidis M Tsatsakis, Stamatis Belivanis, Nikolas C Papanikolaou, Eleftheria G Hatzidaki, Lead toxicity update. A brief review. Medical Science Monitor. ,vol. 11, ,(2005)
Binoy Sarkar, Mallavarapu Megharaj, Yunfei Xi, Ravi Naidu, Structural characterisation of Arquad® 2HT-75 organobentonites: surface charge characteristics and environmental application. Journal of Hazardous Materials. ,vol. 195, pp. 155- 161 ,(2011) , 10.1016/J.JHAZMAT.2011.08.016
Eric Guibal, Céline Milot, John Michael Tobin, None, Metal-Anion Sorption by Chitosan Beads: Equilibrium and Kinetic Studies Industrial & Engineering Chemistry Research. ,vol. 37, pp. 1454- 1463 ,(1998) , 10.1021/IE9703954
Jie Wu, Shijie Ding, Jing Chen, Suqin Zhou, Hongyan Ding, Preparation and drug release properties of chitosan/organomodified palygorskite microspheres. International Journal of Biological Macromolecules. ,vol. 68, pp. 107- 112 ,(2014) , 10.1016/J.IJBIOMAC.2014.04.030
Yonggang Peng, Dajun Chen, Junling Ji, Yong Kong, Huaixin Wan, Chao Yao, Chitosan-modified palygorskite: Preparation, characterization and reactive dye removal Applied Clay Science. ,vol. 74, pp. 81- 86 ,(2013) , 10.1016/J.CLAY.2012.10.002
Yubo Yan, YanPeng Wang, Xiuyun Sun, Jiansheng Li, Jinyou Shen, Weiqing Han, Xiaodong Liu, Lianjun Wang, Optimizing production of hydroxyapatite from alkaline residue for removal of Pb2+ from wastewater Applied Surface Science. ,vol. 317, pp. 946- 954 ,(2014) , 10.1016/J.APSUSC.2014.09.016
Feng-Chin Wu, Ru-Ling Tseng, Ruey-Shin Juang, Comparative adsorption of metal and dye on flake- and bead-types of chitosans prepared from fishery wastes. Journal of Hazardous Materials. ,vol. 73, pp. 63- 75 ,(2000) , 10.1016/S0304-3894(99)00168-5
Shaofeng Wang, Ling Chen, Yuejin Tong, Structure–property relationship in chitosan‐based biopolymer/montmorillonite nanocomposites Journal of Polymer Science Part A. ,vol. 44, pp. 686- 696 ,(2006) , 10.1002/POLA.20941
Xiaohua Zou, Jianming Pan, Hongxiang Ou, Xue Wang, Wei Guan, Chunxiang Li, Yongsheng Yan, Yuqing Duan, Adsorptive removal of Cr(III) and Fe(III) from aqueous solution by chitosan/attapulgite composites: Equilibrium, thermodynamics and kinetics Chemical Engineering Journal. ,vol. 167, pp. 112- 121 ,(2011) , 10.1016/J.CEJ.2010.12.009
Yuehua Deng, Lin Wang, Xiaobin Hu, Benzhi Liu, Zhongbo Wei, Shaogui Yang, Cheng Sun, Highly efficient removal of tannic acid from aqueous solution by chitosan-coated attapulgite Chemical Engineering Journal. pp. 300- 306 ,(2012) , 10.1016/J.CEJ.2011.11.082