Enhancement of phosphate removal from water by TiO2/Yemeni natural zeolite: Preparation, characterization and thermodynamic
作者： Aref Alshameri , Chunjie Yan , Xinrong Lei
DOI: 10.1016/J.MICROMESO.2014.05.008
关键词:
摘要: Abstract In order to develop an effective technique for enhancing the efficiency of phosphate ion (PO 4 3− ) removal, a novel composition TiO 2 /Zeolite (TZ) adsorbent was prepared and investigated systematically. The characteristics TZ its mechanism PO removal were compared with that natural zeolite (NZ). Important parameters which affect adsorption, such as contact time, pH, dosage, temperature, initial concentration presence competing anions investigated. Almost 100% achieved by composite at low concentrations. specific surface area adsorption capacity material reached 166.5 m /g 37.6 mg/g, respectively. Moreover, Maximum occurred around pH 2–4 35 °C. results zeta potential, FTIR, XRF EDS analyses indicated electrostatic attraction replacement hydroxyl groups (T/OH) main mechanism. Arsenate silicate markedly decreased whereas effect other insignificant. isotherm illustrated Freundlich model (FM) provided best fit equilibrium data. addition that, change in free energy (Δ G ○ ), enthalpy H entropy S revealed is spontaneous endothermic 25 It concluded highly efficient economic good regeneration can be utilized remediation environmental pollution.
sci-hub.se 参考文章(46)
Deyi Wu, Baohua Zhang, Chunjie Li, Zhenjia Zhang, Hainan Kong, Simultaneous removal of ammonium and phosphate by zeolite synthesized from fly ash as influenced by salt treatment. Journal of Colloid and Interface Science. ,vol. 304, pp. 300- 306 ,(2006) , 10.1016/J.JCIS.2006.09.011
F. Haghseresht, Shaobin Wang, D.D. Do, A novel lanthanum-modified bentonite, Phoslock, for phosphate removal from wastewaters Applied Clay Science. ,vol. 46, pp. 369- 375 ,(2009) , 10.1016/J.CLAY.2009.09.009
Senlin Tian, Peixi Jiang, Ping Ning, Yonghe Su, None, Enhanced adsorption removal of phosphate from water by mixed lanthanum/aluminum pillared montmorillonite Chemical Engineering Journal. ,vol. 151, pp. 141- 148 ,(2009) , 10.1016/J.CEJ.2009.02.006
Su-Hsia Lin, Ruey-Shin Juang, Adsorption of phenol and its derivatives from water using synthetic resins and low-cost natural adsorbents: a review Journal of Environmental Management. ,vol. 90, pp. 1336- 1349 ,(2009) , 10.1016/J.JENVMAN.2008.09.003
Qi Zhou, Xinze Wang, Jianyong Liu, Ling Zhang, Phosphorus removal from wastewater using nano-particulates of hydrated ferric oxide doped activated carbon fiber prepared by Sol–Gel method Chemical Engineering Journal. ,vol. 200, pp. 619- 626 ,(2012) , 10.1016/J.CEJ.2012.06.123
Jie Xie, Zhe Wang, Deyi Wu, Hainan Kong, Synthesis and properties of zeolite/hydrated iron oxide composite from coal fly ash as efficient adsorbent to simultaneously retain cationic and anionic pollutants from water Fuel. ,vol. 116, pp. 71- 76 ,(2014) , 10.1016/J.FUEL.2013.07.126
Sheng-gao Lu, Shi-qiang Bai, Hong-dan Shan, Mechanisms of phosphate removal from aqueous solution by blast furnace slag and steel furnace slag Journal of Zhejiang University Science. ,vol. 9, pp. 125- 132 ,(2008) , 10.1631/JZUS.A071272
Ke Xu, Tong Deng, Juntan Liu, Weigong Peng, Study on the phosphate removal from aqueous solution using modified fly ash Fuel. ,vol. 89, pp. 3668- 3674 ,(2010) , 10.1016/J.FUEL.2010.07.034
Luiz C.A. Oliveira, Diego I. Petkowicz, Alessandra Smaniotto, Sibele B.C. Pergher, Magnetic zeolites: a new adsorbent for removal of metallic contaminants from water Water Research. ,vol. 38, pp. 3699- 3704 ,(2004) , 10.1016/J.WATRES.2004.06.008
C.H Ao, S.C Lee, Combination effect of activated carbon with TiO2 for the photodegradation of binary pollutants at typical indoor air level Journal of Photochemistry and Photobiology A-chemistry. ,vol. 161, pp. 131- 140 ,(2004) , 10.1016/S1010-6030(03)00276-4