Enhanced Removal of Cu(II) by Photocatalytic Reduction Using Maghemite PVA-Alginate Separable Beads: Kinetic and Equilibrium Studies
作者： Ee Ting Wong , Kian Hwa Chan , Muhammad Irfan , Ani Idris , Effaliza Misran
DOI: 10.1080/01496395.2014.953177
关键词:
摘要: The feasibility of Cu(II) removal by photoreduction using maghemite polyvinylalcohol-alginate beads was investigated. Photoreduction experiments were performed to investigate the influence initial concentration and pH on copper(II) metallic ions. fate during process investigated X-ray photoelectron spectroscopy. It observed that rate faster under sunlight than without due reduction Cu(I). results showed adsorption ions followed a Langmuir Hinshelwood model with constant coefficient values 24.1 ppm/min 0.0098 ppm−1, respectively.
sci-hub.se 参考文章(27)
Yong Xu, Martin A.A. Schoonen, The absolute energy positions of conduction and valence bands of selected semiconducting minerals American Mineralogist. ,vol. 85, pp. 543- 556 ,(2000) , 10.2138/AM-2000-0416
Zümriye Aksu, İ. Alper İşoğlu, Removal of copper(II) ions from aqueous solution by biosorption onto agricultural waste sugar beet pulp Process Biochemistry. ,vol. 40, pp. 3031- 3044 ,(2005) , 10.1016/J.PROCBIO.2005.02.004
T. N. Morcos, H. F. Ghoneimy, R. R. Ayoub, Kinetics of Exchange of Cs+, Co2+ and Sr2+ on Synthetic Hydrous Titanium Oxides Separation Science and Technology. ,vol. 42, pp. 1793- 1807 ,(2007) , 10.1080/01496390701241998
Xiaoli Li, Yanfeng Li, Zhengfang Ye, Preparation of macroporous bead adsorbents based on poly(vinyl alcohol)/chitosan and their adsorption properties for heavy metals from aqueous solution Chemical Engineering Journal. ,vol. 178, pp. 60- 68 ,(2011) , 10.1016/J.CEJ.2011.10.012
A. Bhattacharyya, S. Kawi, M.B. Ray, Photocatalytic degradation of orange II by TiO2 catalysts supported on adsorbents Catalysis Today. ,vol. 98, pp. 431- 439 ,(2004) , 10.1016/J.CATTOD.2004.08.010
Tawfik A. Saleh, Vinod K. Gupta, Photo-catalyzed degradation of hazardous dye methyl orange by use of a composite catalyst consisting of multi-walled carbon nanotubes and titanium dioxide. joint international conference on information sciences. ,vol. 371, pp. 101- 106 ,(2012) , 10.1016/J.JCIS.2011.12.038
Erdal Kusvuran, Ali Samil, Osman Malik Atanur, Oktay Erbatur, Photocatalytic degradation kinetics of di- and tri-substituted phenolic compounds in aqueous solution by TiO2/UV Applied Catalysis B-environmental. ,vol. 58, pp. 211- 216 ,(2005) , 10.1016/J.APCATB.2004.11.023
Qingrong Qian, Kazuhiro Mochidzuki, Takao Fujii, Akiyoshi Sakoda, Removal of copper from aqueous solution using iron-containing adsorbents derived from methane fermentation sludge. Journal of Hazardous Materials. ,vol. 172, pp. 1137- 1144 ,(2009) , 10.1016/J.JHAZMAT.2009.07.107
Fenglian Fu, Weijiang Han, Bing Tang, Min Hu, Zihang Cheng, Insights into environmental remediation of heavy metal and organic pollutants: Simultaneous removal of hexavalent chromium and dye from wastewater by zero-valent iron with ligand-enhanced reactivity Chemical Engineering Journal. ,vol. 232, pp. 534- 540 ,(2013) , 10.1016/J.CEJ.2013.08.014
Ani Idris, Effaliza Misran, Nursia Hassan, Aishah Abd Jalil, Chan Eng Seng, Modified PVA-alginate encapsulated photocatalyst ferro photo gels for Cr(VI) reduction. Journal of Hazardous Materials. ,vol. 227, pp. 309- 316 ,(2012) , 10.1016/J.JHAZMAT.2012.05.065