[1] Bhattacharyya, R. and Ray, S.K. (2015). Removal of congo red and methyl violet from water using nano clay filled composite hydrogels of poly acrylic acid and polyethylene glycol. Chem. Eng. J. 260: 269-283. [2] Mahmoud, D.K., Salleh, M.A.M., Karim, W.A.W.A., Idris, A. and Abidin, Z.Z. (2012).Batch adsorption of basic dye using acid treated kenaf fibre char: Equilibrium, kinetic and thermodynamic studies. Chem. Eng. J. 181-182:449-457. [3] Chen, H., Zhao, J. and Dai, G. (2011). Silkworm exuviae - A new non-conventional and low-cost adsorbent for removal of methylene blue from aqueous solutions. J. Hazard. Mater. 186: 1320-1327. [4] Bharathi, K.S. and Ramesh, S.T. (2013). Removal of dyes using agricultural waste as low-cost adsorbents: A review. Appl. Water Sci.3: 773-790. [5] Zheng, Y., Yu, S., Shuai, S., Zhou, Q., Cheng, Q., Liu, M. and Gao, C. (2013). Color removal and COD reduction of biologically treated textile effluent through submerged filtration using hollow fiber nanofiltration membrane. Desalination. 314: 89-95. [6] Toor, M., Jin, B., Dai, S. and Vimonses, V. (2014). Activating natural bentonite as a costeffective adsorbent for removal of Congo-red in wastewater, J. Ind. Eng. Chem. 21: 653-661. [7] Hossain, M.A. and Alam, M.S. (2012). Adsorption kinetics of Rhodamine-B on used black tea leaves. Iran. J. Environ. Heal. Sci. Eng.9: 1-7. [8] Gong, R., Zhang, X., Liu, H., Sun, Y. and Liu, B. (2007). Uptake of cationic dyes from aqueous solution by biosorption onto granular kohlrabi peel. Bioresour. Technol. 98: 1319-1323. [9] Doğan, M., Abak, H. and Alkan, M. (2009). Adsorption of methylene blue onto hazelnut shell: Kinetics, mechanism and activation parameters. J. Hazard. Mater. 164: 172-181. [10]Savci, S. (2017). Study of malachite green adsorption by waste ash using a batch method. Fresen. Environ. Bull., 26:1026-1032. [11]Rangabhashiyam, S., Anu, N., Giri Nandagopal, M.S. and Selvaraju, N. (2014). Relevance of isotherm models in biosorption of pollutants by agricultural byproducts. J. Environ. Chem. Eng. 2: 398-414. [12]Saba, N., Jawaid, M., Hakeem, K.R., Paridah, M.T., Khalina, A. and Alothman, A.Y. (2015). Potential of bioenergy production from industrial kenaf (Hibiscus cannabinus L.) based on Malaysian perspective. Renew. Sustain.Energy Rev. 42: 446-459. [13]Basri., M.H.A., Arifin, A., Nasima, J., Hazandy, A.H. and Khalil, A. (2014). Journey of kenaf in Malaysia: A Review, Sci. Res. Essays. 9: 458-470. [14]Ong, S.A., Ho, L.N., Wong, Y.S. and Zainuddin, A. (2013). Adsorption Behavior of Cationic and Anionic Dyes onto Acid Treated Coconut Coir, Sep. Sci. Technol. 48: 2125- 2131. [15]Santhi, T., Leena, A. and Manonmani, S. (2014). A comparative study of microwave and chemically treated Acacia nilotica leaf as an eco friendly adsorbent for the removal of rhodamine B dye from aqueous solution. Arab. J. Chem. 7:494-503. [16]Elmoubarki, R., Mahjoubi, F.Z., Tounsadi, H., Moustadraf, J., Abdennouri, M., Zouhri, A., El Albani, A. and Barka, N. (2015). Adsorption of textile dyes on raw and decanted Moroccan clays: Kinetics, equilibrium and thermodynamics. Water Resour. Ind. 9: 16-29. [17]Qu, J., Zhang, Q., Xia, Y., Cong, Q. and Luo, C. (2014). Synthesis of carbon nanospheres using fallen willow leaves and adsorption of Rhodamine B and heavy metals by them. Environ. Sci. Pollut. Res. Int. 22: 1408-1419. [18]Somasekhara Reddy, M.C., Sivaramakrishna, L. and Varada Reddy, A. (2012). The use of an agricultural waste material, Jujubaseeds for the removal of anionic dye (Congo red) from aqueous medium. J. Hazard. Mater. 203: 118–127. [19]Mahmoodi, N.M., Hayati, B., Arami, M. and Lan, C. (2011). Adsorption of textile dyes on Pine Cone from colored wastewater: Kinetic,equilibrium and thermodynamic studies.Desalination 268: 117-125. [20]Shu, J., Wang, Z., Huang, Y., Huang, N.,Ren, C. and Zhang, W. (2015). Adsorption removal of Congo red from aqueous solution by polyhedral Cu2O nanoparticles: Kinetics,isotherms, thermodynamics and mechanism analysis. J. Alloys Compd. 633: 338-346. [21]Pua, F.L., Sajab, M.S., Chia, C.H., Zakaria, S., Rahman, I.A. and Salit, M.S.(2013). Alkalinetreated cocoa pod husk as adsorbent for removing methylene blue from aqueous solutions. J. Environ. Chem. Eng. 1: 460-465. [22]Kumar, K.Y., Muralidhara, H.B., Nayaka, Y.A., Balasubramanyam, J. And Hanumanthappa, H. (2013). Low-cost synthesis of metal oxide nanoparticles and their application in adsorption of commercial dye and heavy metal ion in aqueous solution.Powder Technol.246:125- 136. [23]Lim, L.B.L., Priyantha, N., Tennakoon, D.T.B., Chieng, H.I., Dahri, M.K. and Suklueng, M. (2014). Breadnut peel as a highly effective lowcost biosorbent for methylene blue: Equilibrium, thermodynamic and kinetic studies, Arab. J. Chem. [24]Tan, K.A., Morad, N., Teng, T.T., Norli, I. and Panneerselvam, P. (2012). Removal of Cationic Dye by Magnetic Nanoparticle (Fe3O4) Impregnated onto Activated Maize Cob Powder and Kinetic Study of Dye Waste Adsorption. APCBEE Procedia. 1: 83-89. [25]Motahari, F., Mozdianfard, M.R. and SalavatiNiasari, M. (2015). Synthesis and adsorption studies of NiO nanoparticles in the presence of H2acacen ligand for removing Rhodamine B in wastewater treatment. Process Safety Environ.Protect. 93: 282-292. [26]Li, L., Liu, S. and Zhu, T. (2010). Application of activated carbon derived from scrap tires for adsorption of Rhodamine B. J. Environ. Sci.22(8): 1273-1280. [27]Coelho, G.F., Gonçalves Jr., A.C., Tarley, C.R.T., Casarin, J., Nacke, H. and Francziskowski, M.A. (2014). Removal of metal ions Cd (II), Pb (II), and Cr (III) from water by the cashew nut shell Anacardium occidentale L.Ecol. Eng. 73: 514-525. [28]Fomina, M. and Gadd, G.M. (2014).Biosorption: current perspectives on concept,definition and application. Bioresour. Technol.160: 3-14. [29]Kyzas, G.Z., Lazaridis, N.K. and Mitropoulos, A.C. (2012). Removal of dyes from aqueous solutions with untreated coffee residues as potential low-cost adsorbents: Equilibrium,reuse and thermodynamic approach. Chem. Eng. J. 189-190: 148-159. [30]Wang, M., Fu, J., Zhang, Y., Chen, Z., Wang, M., Zhu, J., Cui, W., Zhang, J. and Xu, Q. (2015). Removal of Rhodamine B, a Cationic Dye From Aqueous Solution Using Poly(cyclotriphosphazene-co-4,4′- sulfonyldiphenol) Nanotubes. J. Macromol. Sci. Part A. 52: 105-113. [31]Alencar, W., Acayanka, E. and Lima, E. (2012). Application of Mangifera indica (mango) seeds as a biosorbent for removal of Victazol Orange 3R dye from aqueous solution and study of the biosorption mechanism. Chem. Eng. J. 209: 577-588. [32]Zhang, Z.,Hara, I.M.O., Kent, G.A. and Doherty, W.O.S. (2013). Comparative study on adsorption of two cationic dyes by milled sugarcane bagasse. Ind. Crop. Prod. 42: 41-49. [33]Abdel Salam, O.E., Reiad, N.A. and ElShafei, M.M. (2011). A study of the removal characteristics of heavy metals from wastewater by low-cost adsorbents. J. Adv. Res. 2: 297-303. [34]Yargıç, A.Ş., Yarbay Şahin, R.Z., Özbay, N. and Önal, E. (2015). Assessment of toxic copper(II) biosorption from aqueous solution by chemically-treated tomato waste. J. Clean. Prod. 88: 152-159. [35]Kamari, A., Yusoff, S.N.M., Abdullah, F. and Putra, W.P. (2014). Biosorptive removal of Cu(II), Ni(II) and Pb(II) ions from aqueous solutions using coconut dregs residue: Adsorption and characterisation studies. J. Environ. Chem. Eng. 2: 1912-1919. [36]Igberase, E., Osifo, P. and Ofomaja, A. (2014). The adsorption of copper (II) ions by polyaniline graft chitosan beads from aqueous solution: Equilibrium, kinetic and desorption studies. J. Environ. Chem. Eng. 2: 362-369. [37]Langmuir, I. (1916). The constitution and fundamental properties of solids and liquids. Part I. Solids. J. Am. Chem. Soc.38: 2221-2295. [38]Bazargan-Lari, R., Zafarani, H.R., Bahrololoom, M.E. and Nemati, A. (2014). Removal of Cu(II) ions from aqueous solutions by low-cost natural hydroxyapatite/chitosan composite: Equilibrium, kinetic and thermodynamic studies. J. Taiwan Inst. Chem. Eng. 45: 1642-1648. [39]Yuvaraja, G., Krishnaiah, N., Subbaiah, M.V. and Krishnaiah, A. (2014). Biosorption of Pb(II) from aqueous solution by Solanum melongena leaf powder as a low-cost biosorbent prepared from agricultural waste. Colloids Surf. B. Biointerfaces. 114: 75-81. [40]Freundlich, H.M.F. (1906). Uber Die adsorption in Lasungen. J. Phys. Chem.57: 385-470. [41]Hall, K.R., Eagleton, L.C., Acrivos, A. and Vermeulen, T. (1966). Pore-and solid-diffusion kinetics in fixed-bed adsorption under constantpattern conditions. Ind. Eng. Chem. Fund.5(2):212-223. [42]Mall, I.D., Srivastava, V.C., Agarwal, N.K. and Mishra, I.M. (2005). Removal of congo red from aqueous solution by bagasse fly ash and activated carbon: Kinetic study and equilibrium isotherm analyses. Chemosphere 61: 492-501. [43]Annadurai, G., Juang, R.S. and Lee, D.J. (2002). Use of cellulose-based wastes for adsorption of dyes from aqueous solutions. J. Hazard Mater.92: 263-274. [44]Mittal, A., Malviya, A., Kaur, D., Mittal, J. and Kurup, L. (2007). Studies on the adsorption kinetics and isotherms for the removal and recovery of methyl orange from wastewaters using waste materials. J. Hazard. Mater. 148: 229-240. [45]Senthil Kumar, P., Ramalingam, S., Senthamarai, C., Niranjanaa, M., Vijayalakshmi, P.and Sivanesan, S. (2010). Adsorption of dye from aqueous solution by cashew nut shell:studies on equilibrium isotherm, kinetics and thermodynamics of interactions. Desalination 261(1-2), 52-60. [46]Namasivayam, C. and Kavitha, D. (2002). Removal of congo red from water by adsorption onto activated carbon prepared from coir pith, an agricultural solid waste. Dyes Pigments 54:47-58. [47]Gouamid, M., Ouhrani, M.R. and Bensaci, M.B. (2013). Adsorption equilibrium, kinetics and thermodynamics of methylene blue from aqueous solutions using date palm leaves. Energy Proc. 36: 898-907. [48]Hameed, B.H. and Ahmad, A.A. (2009). Batch adsorption of methylene blue from aqueous solution by garlic peel, an agricultural waste biomass. J. Hazard. Mater. 164(2-3): 870-875. [49]Demir, H., Top, A., Balköse, D. and Ulkü, S. (2008). Dye adsorption behaviour of Lufta cylindrica fibers. J. Hazard. Mater. 153(1-2): 389-394. [50]Ahmad, A., Rafatullah, M. and Sulaiman, O. (2009). Scavenging behaviour of meranti sawdust in the removal of methylene blue from aqueous solution. J. Hazard. Mater. 170: 357-365. [51]Song, J., Zou, W., Bian, Y., Su, F. and Han, R. (2011). Adsorption characteristics of methylene blue by peanut husk in batch and column modes. Desalination 265(1-3): 119-125. [52]Abbas, A., Murtaza, S., Shahid, K., Munir, M., Ayub, R. and Akber, S. (2012). Comparative Study of Adsorptive Removal of Congo Red and Brilliant Green Dyes from Water Using Peanut Shell. Middle-East J. Sci. Res. 11: 828-832. [53]Ncibi, M.C., Mahjoub, B. and Seffen, M. (2007). Kinetic and equilibrium studies of methylene blue biosorption by Posidonia oceanica (L.) fibres. J. Hazard. Mater. 139(2): 280-285. [54]Hameed, B.H. (2009). Spent tea leaves: a new non-conventional and low-cost adsorbent for removal of basic dye from aqueous solutions. J.Hazard. Mater. 161(2-3): 753-759. [55]Gusmão, K., Gurgel, L., Melo, T. and Gil, L. (2013). Adsorption studies of methylene blue and gentian violet on sugarcane bagasse modified with EDTA dianhydride (EDTAD) in aqueous solutions: Kinetic and equilibrium aspects. J. Environ. Manage. 118: 135-143. [56]Pavan, F.A., Lima, E.C., Dias, S.L.P. and Mazzocato, A.C. (2008). Methylene blue biosorption from aqueous solutions by yellow passion fruit waste. J. Hazard. Mater. 150(3): 703-712.