Ultrasound assisted synthesis of guar gum-zero valent iron nanocomposites as a novel catalyst for the treatment of pollutants

Carbohydrate Polymers
Jayachandrabal Balachandramohan, Thirugnanasambandam Sivasankar

Abstract

This study presents the synthesis of guar gum-zero valent iron nanocomposites (ZGNC) by a simple ultrasound co-precipitation method. The guar gum, one of the most cost effective due to ease of manufacture by extraction, abundant availability and high export value accounts almost 80% of total production in India. Guar gum, a natural polymer was used as binders in pharmaceutical formulations, and acts as a reducing and capping agent for the synthesis of zero valent iron nanoparticles (ZVI). The physicochemical properties of the ZGNC were characterized by TGA, FTIR, XRD, FESEM, EDS, HRTEM, DLS and XPS. The average particle size was ∼60-70 nm and the guar gum polymer on the ZVI were clearly visible from HRTEM. The XPS of ZGNC clearly confirms the elemental composition of the ZVI, guar gum and FeO. The 0.5 g/L ZGNC when used for the pollutants treatment, 15 ppm ciprofloxacin was adsorbed with a removal efficiency of 94% in 60 min at pH 4.0 whereas it had exhibited catalytic oxidation for 100 ppm methyl orange with an efficiency of 99% in 60 min at pH 7.0.

References

Nov 30, 1995·Carbohydrate Research·C FringantJ Desbrieres
Jun 16, 2004·Environment International·Esther ForgacsGyula Oros
Feb 8, 2005·Journal of Colloid and Interface Science·Keith W GoyneSusan L Brantley
Mar 15, 2005·Biomagnetic Research and Technology·Gilles K KouassiGregory McCarty
Mar 25, 2005·Environmental Science & Technology·James T NurmiMichelle D Driessen
Mar 25, 2005·Environmental Science & Technology·Sushil Raj KanelHeechul Choi
Jul 13, 2005·Journal of Colloid and Interface Science·Xiaodong Ma, Marek Pawlik
Nov 30, 2005·The Science of the Total Environment·Kathryn D BrownDouglas B Mawhinney
Dec 31, 2005·Environmental Science & Technology·Cheng Gu, K G Karthikeyan
Jan 3, 2006·Colloids and Surfaces. B, Biointerfaces·Anfeng WangK Y Simon Ng
May 16, 2006·Advances in Colloid and Interface Science·Yuan-Pang SunH Paul Wang
Feb 3, 2007·Environmental Science & Technology·Tanapon PhenratGregory V Lowry
Jun 2, 2007·Environmental Science & Technology·Paras Trivedi, Dharni Vasudevan
Feb 29, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·John E MartinWei-xian Zhang
Dec 17, 2008·Journal of Hazardous Materials·Xin ZhangZu-liang Chen
Jan 25, 2011·Ultrasonics Sonochemistry·J P ChengX B Zhang
Mar 25, 2011·Macromolecular Rapid Communications·J P Rao, Kurt E Geckeler
Aug 26, 2011·Journal of Colloid and Interface Science·Zheng-xian ChenRavendra Naidu
Jan 26, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Maria BaikousiMichael A Karakassides
Mar 14, 2012·International Journal of Biological Macromolecules·Deepak MudgilB S Khatkar
Jul 4, 2012·International Journal of Biological Macromolecules·Sadanand PandeyKaruna K Nanda
Apr 3, 2013·Carbohydrate Polymers·Sadanand PandeyKaruna K Nanda
Jun 19, 2013·Ultrasonics Sonochemistry·Mir Roozbeh JameiBagher Anvaripour
Sep 27, 2014·Carbohydrate Polymers·Sadanand Pandey, Shivani B Mishra
Dec 11, 2014·Materials Science & Engineering. C, Materials for Biological Applications·Sumanta Kumar GhoshArup Mukherjee
Apr 8, 2016·Ultrasonics Sonochemistry·Thomas S H LeongMuthupandian Ashokkumar

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