[1]. Isiuku B.O., Nwosu C.N. Asian J. Chem., 2017, 29:475
[2]. Isiuku B.O., Horsfall M., Spiff A.I. Res. J. Appl. Sci., 2014, 9:201
[3]. Belay K., Hayelom A. Chem. Mater. Res., 2014, 6:31
[4]. Pal J., Deb M.K., Deshmukh D.K., Sen B.K. Appl. Nanoscience, 2014, 4:61
[5]. Saji M., Taguchi S., Uchiyama K., Osono E., Hayama N., Ohkuni H. J. Hosp. Infect., 1995, 31:225
[6]. Li P., Su Y.J., Wang Y., Liu B., Sun L.M. J. Hazard. Mater., 2010, 179:43
[7]. Bonetto L.R., Ferrarini F., de Macro C., Crespo J.S., Guegan R., Giovanela M. J. Water Proces. Eng., 2015, 6:11
[8]. Turhan K., Durukan I., Ozturkcan S.A., Turgut Z. Dyes. Pigments, 2012, 92:897
[9]. Tong Z., Zheng P., Bai B. Catalysts, 2016, 6:58
[10]. Wang L., Zhang J., Zhao R., Li C., Zhang C. Desalination, 2010, 254:68
[11]. Njoku V.O., Ayuk A.A., Oguzie E.E., Ejike E.N. Sep. Sci. Technol., 2012, 47:753
[12]. Hassan A.A., Hassan, Z.A.S. Euphrates J. Agric. Sci., 2013, 5:11
[13]. Pramanpol N., Nitayapat N. Kasetsart J. Nat. Sci., 2006, 40:192
[14]. Association of Official Analytical Chemists (AOAC), Official Methods of Analysis, 15th Ed., Arlington, VA, USA, 1990, p. 331
[15]. Akinola L.K., Umar A.M. J. Appl. Sci. Environ. Manage., 2015, 19:279
[16]. Rocha P.D., Franca A.S., Oliveira L.S. Int. J. Eng. Technol., 2015, 7:459
[17]. Williams D.H., Fleming I. Spectroscopic Methods in Organic Chemistry, 3rd Ed., McGraw-Hill Book (UK) Ltd., 1980, pp. 49
[18]. Finar I.L. Organic Chemistry, Vol. 2, 5th Ed., Longman Group Ltd, Essex, UK, 1975, pp.651
[19]. Han R., Zou W., Yu W., Cheng S., Wang Y., Shi J. J.Hazard. Mater., 2007, 141:156
[20] Tsai W.T., Yang J.M., Lai C.W., Cheng Y.H., Lin C.C., Yeh C.W. Bioresource Technol., 2006, 97:488
[21]. Njoku V.O., Hameed B.H. Chem. Eng. J., 2011, 173:391
[22]. Finar I.L., Organic Chemistry, Vol. 1: The Fundamental Principles, 6th Ed., Longman Group Ltd, London, 1973, p. 207
[23]. Jones Jr M., Organic Chemistry, 2nd Ed., W.W. Norton and Company Inc., 2000, p. 715
[24]. Yeddou N., Bensmaili A. Desalination, 2007, 206:127
[25]. Mezenner N.Y., Bensmaili A. Chem. Eng. J., 2009, 147:87
[26]. Horsfall Jnr M., Spiff A.I. Electron. J. Biotechnol., 2005, 8:162
[27]. Sen J.K. Int. J. Environ. Pollut., 2011, 3:1
[28]. Isiuku B.O., Onyema M.O., World News Nat. Sci., 2017, 13:10
[29]. Bello O.S., Fatona T.A., Falaye F.S., Osulale O.M., Njoku V.O. Environ. Eng. Sci., 2010, 29:186
[30]. Shrivastava P.K., Gupta S.K. Int. J. Chem. Sci. Appl., 2015, 6:1
[31]. Rane N.M., Sapkal R.S., Sapkal V.S., Patil M.B., Shewale S.P. Int. J. Chem. Sci. Appl., 2010, 1:65
[32]. Ajmal M., Khan A.H., Ahmad S., Ahmad A. Water Res., 1998, 32:3085
[33]. Al-Fatlawi A.H., Neamah M.M. Int. J. Adv. Res. Sci. Eng. Technol., 2015, 2:557
[34]. Reed B.E., Matsumoto M.R. Separat. Sci. Technol., 1993, 28:2179
[35]. Mckay G., Otterburn M.S., Sweeney A.G. Water Res., 1980, 14:15
[36]. Ozer A., Pirinc H.B. J. Hazar. Mater., 2006, 137:849
[37]. Oubagarandin J.U.K., Murthy Z.V.P., Rao P.S. Ind. Chem. Eng., 2007,49:196
[38]. Shahruyari Z., Goharrizi A.S., Azadi M. Int. J. Water Resour. Environ. Eng., 2010, 2:016
[39]. Vasailis I.J. J. Eng. Studies Res., 2010,16:29
[40]. Ekpete O.A., Horsfall Jnr. M., Spiff A.I. J. Nat. Appl. Sci., 2012, 1:106
[41]. Reichenberg D. J. Amer. Chem. Soc., 1853,78:589
[42]. Ding L., Zou B., Gao W., Liu Q., Wang Z., Guo Y., Wang X., Liu Y. Colloids Surf. A, 2014, 446:1
[43]. Konicki W., Cendrowski K., Chen X., Mijowska E. Chem. Eng. J., 2013, 228:824
[44]. Rachamani J., Mousavi H.Z., Behzad M. Desalination, 2011, 267:256
[45]. Li C., Dong Y., Yang J., Li Y., Huang C. J. Mol. Liq., 2014, 196:348
[46]. Koumanova B., Peeva P., Allen S.J., Gallagher K.A., Healy M.G. J. Chem. Technol. Biotechnol., 2002, 77:539