Aliabadi, M., Irani, M., Ismaeili, J., and Najafzadeh, S., (2014), "Design and evaluation of chitosan/hydroxyapatite composite nanofiber membrane for the removal of heavy metal ions from aqueous solution", Journal of the Taiwan Institute of Chemical Engineers, 45(2), 518-526.
Alizadeh, B., Delnavaz, M., and Shakeri, A., (2018), "Removal of Cd (ӀӀ) and phenol using novel cross-linked magnetic EDTA/chitosan/TiO2 nanocomposite", Carbohydrate Polymers, 181, 675-683.
Anirudhan, T. S., and Sreekumari, S. S., (2011), "Adsorptive removal of heavy metal ions from industrial effluents using activated carbon derived from waste coconut buttons", Journal of Environmental Sciences, 23(12), 1989-1998.
Babel, S., and Kurniawan, T.A., (2003), "Low-cost adsorbents for heavy metals uptake from contaminated water: a review", Journal of Hazardous Materials, 97(1-3), 219-243.
Becker, T., Schlaak, M., and Strasdeit, H., (2000), "Adsorption of nickel (II), zinc (II) and cadmium (II) by new chitosan derivatives", Reactive and Functional Polymers, 44(3), 289-298.
Bezerra, M.A., Santelli, R.E., Oliveira, E.P., Villar, L.S., and Escaleira, L.A., (2008), "Response surface methodology (RSM) as a tool for optimization in analytical chemistry", Talanta, 76(5), 965-977.
Bhatt, R., Sreedhar, B., and Padmaja, P., (2015), "Adsorption of chromium from aqueous solutions using crosslinked chitosan–diethylenetriaminepentaacetic acid", International Journal of Biological Macromolecules, 74, 458-466.
Bodnar, M., Hartmann, J.F., and Borbely, J., (2005), "Preparation and characterization of chitosan-based nanoparticles", Biomacromolecules, 6(5), 2521-2527.
Chang, Y.-C., Chang, S.-W., and Chen, D.-H., (2006), "Magnetic chitosan nanoparticles: Studies on chitosan binding and adsorption of Co (II) ions", Reactive and Functional Polymers, 66(3), 335-341.
Chang, Y.-C., and Chen, D.-H., (2005), "Preparation and adsorption properties of monodisperse chitosan-bound Fe3O4 magnetic nanoparticles for removal of Cu (II) ions", Journal of Colloid and Interface Science, 283(2), 446-451.
Chauhan, D., Dwivedi, J., and Sankararamakrishnan, N., (2014), "Novel chitosan/PVA/zerovalent iron biopolymeric nanofibers with enhanced arsenic removal applications", Environmental Science and Pollution Research, 21(15), 9430-9442.
Chen, D., Li, W., Wu, Y., Zhu, Q., Lu, Z., and Du, G., (2013), "Preparation and characterization of chitosan/montmorillonite magnetic microspheres and its application for the removal of Cr (VI)", Chemical Engineering journal, 221, 8-15.
Cho, D.-W., Jeon, B.-H., Chon, C.-M., Kim, Y., Schwartz, F.W., Lee, E.-S., and Song, H., (2012), "A novel chitosan/clay/magnetite composite for adsorption of Cu (II) and As (V)", Chemical Engineering Journal, 200, 654-662.
Chowdhury, S., Mishra, R., Saha, P., and Kushwaha, P., (2011), "Adsorption thermodynamics, kinetics and isosteric heat of adsorption of malachite green onto chemically modified rice husk", Desalination, 265(1), 159-168.
Dąbrowski, A., (2001), "Adsorption: From theory to practice", Advances in Colloid and Interface Science, 93(1), 135-224.
Debnath, S., Maity, A., and Pillay, K., (2014), "Magnetic chitosan–GO nanocomposite: synthesis, characterization and batch adsorber design for Cr (VI) removal", Journal of Environmental Chemical Engineering, 2(2), 963-973.
Dhanapal, V., and Subramanian, K., (2015), "Modified chitosan for the collection of reactive blue 4, arsenic and mercury from aqueous media", Carbohydrate Polymers, 117, 123-132.
Du, J., Zhang, L., Gao, H., and Liao, Y., (2017), "Removal of methylene blue from aqueous solutions using Poly (AA-co-DVB)", Journal of Dispersion Science and Technology, 38(10), 1489-1494.
El-Reash, Y.G.A., Otto, M., Kenawy, I.M., and Ouf, A.M., (2011), "Adsorption of Cr (VI) and As (V) ions by modified magnetic chitosan chelating resin", International Journal of Biological Macromolecules, 49(4), 513-522.
Eser, A., Tirtom, V.N., Aydemir, T., Becerik, S., and Dinçer, A., (2012), "Removal of nickel (II) ions by histidine modified chitosan beads", Chemical Engineering Journal, 210, 590-596.
Fan, C., Li, K., Li, J., Ying, D., Wang, Y., and Jia, J., (2017), "Comparative and competitive adsorption of Pb (II) and Cu (II) using tetraethylenepentamine modified chitosan/CoFe2O4 particles", Journal of Hazardous Materials, 326, 211-220.
Febrianto, J., Kosasih, A.N., Sunarso, J., Ju, Y.-H., Indraswati, N., and Ismadji, S., (2009), "Equilibrium and kinetic studies in adsorption of heavy metals using biosorbent: a summary of recent studies", Journal of Hazardous Materials, 162(2-3), 616-645.
Gamage, A., and Shahidi, F., (2007), "Use of chitosan for the removal of metal ion contaminants and proteins from water", Food Chemistry, 104(3), 989-996.
Gandhi, M.R., and Meenakshi, S., (2013), "Preparation of amino terminated polyamidoamine functionalized chitosan beads and its Cr (VI) uptake studies", Carbohydrate Polymers, 91(2), 631-637.
Gogoi, P., Thakur, A.J., Devi, R.R., Das, B., and Maji, T.K., (2016), "A comparative study on sorption of arsenate ions from water by crosslinked chitosan and crosslinked chitosan/MMT nanocomposite", Journal of Environmental Chemical Engineering, 4(4), 4248-4257.
Gokila, S., Gomathi, T., Sudha, P.N., and Anil, S., (2017), "Removal of the heavy metal ion chromiuim (VI) using Chitosan and Alginate nanocomposites", International Journal of Biological Macromolecules, 104, 1459-1468.
He, J., Lu, Y., and Luo, G., (2014), "Ca (II) imprinted chitosan microspheres: An effective and green adsorbent for the removal of Cu (II), Cd (II) and Pb (II) from aqueous solutions", Chemical Engineering Journal, 244, 202-208.
Hu, X., Wang, J., Liu, Y., Li, X., Zeng, G., Bao, Z., Zeng, X., Chen, A., and Long, F., (2011), "Adsorption of chromium (VI) by ethylenediamine-modified cross-linked magnetic chitosan resin: isotherms, kinetics and thermodynamics", Journal of Hazardous Materials, 185(1), 306-314.
Huang, C., Chung, Y.-C., and Liou, M.-R., (1996), "Adsorption of Cu (II) and Ni (II) by pelletized biopolymer", Journal of Hazardous Materials, 45(2-3), 265-277.
Igberase, E., Osifo, P., and Ofomaja, A., (2017), "Chromium (VI) ion adsorption by grafted cross-linked chitosan beads in aqueous solution: A mathematical and statistical modeling study", Environmental Technology, 38(24), 3156-3166.
Igder, A., Rahmani, A.A., Fazlavi, A., Ahmadi, M.H., Azqhandi, A., Hossein, M., and Omidi, M.H., (2012), "Box-behnken design of experiments investigation for adsorption of Cd2+ onto carboxymethyl chitosan magnetic nanoparticles", Journal of Mining and Environment, 3(1), 51-59.
Inoue, K., Ohto, K., Yoshizuka, K., Yamaguchi, T., and Tanaka, T., (1997), "Adsorption of lead (II) ion on complexane types of chemically modified chitosan", Bulletin of the Chemical Society of Japan, 70(10), 2443-2447.
Jansson-Charrier, M., Guibal, E., Roussy, J., Delanghe, B., and Le Cloirec, P., (1996), "Vanadium (IV) sorption by chitosan: Kinetics and equilibrium", Water Research, 30(2), 465-475.
Jiang, Y.-J., Yu, X.-Y., Luo, T., Jia, Y., Liu, J.-H., and Huang, X.-J., (2013), "γ-Fe2O3 nanoparticles encapsulated millimeter-sized magnetic chitosan beads for removal of Cr (VI) from water: Thermodynamics, kinetics, regeneration, and uptake mechanisms", Journal of Chemical and Engineering Data, 58(11), 3142-3149.
Karthik, R., and Meenakshi, S., (2015), "Removal of Pb (II) and Cd (II) ions from aqueous solution using polyaniline grafted chitosan", Chemical Engineering Journal, 263, 168-177.
Kizilkaya, B., (2012), "Usage of biogenic apatite (fish bones) on removal of basic fuchsin dye from aqueous solution", Journal of Dispersion Science and Technology, 33(11), 1596-1602.
Kumar, A. S. K., and Jiang, S.-J., (2016), "Chitosan-functionalized graphene oxide: A novel adsorbent an efficient adsorption of arsenic from aqueous solution", Journal of environmental chemical engineering, 4(2), 1698–1713.
Kumar, M., Tripathi, B.P., and Shahi, V.K., (2009), "Crosslinked chitosan/polyvinyl alcohol blend beads for removal and recovery of Cd (II) from wastewater", Journal of Hazardous Materials, 172(2-3), 1041-1048.
Kyzas, G.Z., Kostoglou, M., and Lazaridis, N.K., (2009), "Copper and chromium (VI) removal by chitosan derivatives, Equilibrium and kinetic studies", Chemical Engineering Journal, 152(2-3), 440-448.
Li, J., Jiang, B., Liu, Y., Qiu, C., Hu, J., Qian, G., Guo, W., and Ngo, H.H., (2017), "Preparation and adsorption properties of magnetic chitosan composite adsorbent for Cu2+ removal", Journal of Cleaner Production, 158, 51-58.
Li, X., Zhou, H., Wu, W., Wei, S., Xu, Y., and Kuang, Y., (2015), "Studies of heavy metal ion adsorption on Chitosan/Sulfydryl-functionalized graphene oxide composites", Journal of Colloid and Interface Science, 448, 389-397.
Liu, B., Lv, X., Wang, D., Xu, Y., Zhang, L., and Li, Y., (2012), "Adsorption behavior of As (III) onto chitosan resin with As (III) as template ions", Journal of Applied Polymer Science, 125(1), 246-253.
Liu, Q., Yang, B., Zhang, L., and Huang, R., (2015), "Adsorptive removal of Cr (VI) from aqueous solutions by cross-linked chitosan/bentonite composite", Korean Journal of Chemical Engineering, 32(7), 1314-1322.
Liu, T., Zhao, L., Sun, D., and Tan, X., (2010), "Entrapment of nanoscale zero-valent iron in chitosan beads for hexavalent chromium removal from wastewater", Journal of Hazardous Materials, 184(1-3), 724-730.
Liu, X., Hu, Q., Fang, Z., Zhang, X., and Zhang, B., (2008), "Magnetic chitosan nanocomposites: A useful recyclable tool for heavy metal ion removal", Langmuir, 25(1), 3-8.
Luo, X., Zeng, J., Liu, S., and Zhang, L., (2015), "An effective and recyclable adsorbent for the removal of heavy metal ions from aqueous system: magnetic chitosan/cellulose microspheres", Bioresource Technology, 194, 403-406.
Maity, J., and Ray, S.K., (2018), "Chitosan based nano composite adsorbent: Synthesis, characterization and application for adsorption of binary mixtures of Pb (II) and Cd (II) from water", Carbohydrate Polymers, 182, 159-171.
Malliou, E., Loizidou, M., and Spyrellis, N., (1994), "Uptake of lead and cadmium by clinoptilolite", Science of the Total Environment, 149(3), 139-144.
Manju, G.N., Raji, C., and Anirudhan, T.S., (1998), "Evaluation of coconut husk carbon for the removal of arsenic from water", Water Research, 32(10), 3062-3070.
Marković, S., Stanković, A., Lopičić, Z., Lazarević, S., Stojanović, M., and Uskoković, D., (2015), "Application of raw peach shell particles for removal of methylene blue", Journal of Environmental Chemical Engineering, 3(2), 716-724.
Mckay, G., Blair, H.S., and Findon, A., (1989), "Equilibrium studies for the sorption of metal-ions onto chitosan", Indian Journal of Chemistry Section A, Inorganic Bio-Inorganic Physical Theoretical and Analytical Chemistry, 28(5), 356-360.
Monier, M., Ayad, D.M., and Abdel-Latif, D.A., (2012), "Adsorption of Cu (II), Cd (II) and Ni (II) ions by cross-linked magnetic chitosan-2-aminopyridine glyoxal Schiff’s base", Colloids and Surfaces B: Biointerfaces, 94, 250-258.
Muzzarelli, R.A.A., Weckx, M., Filippini, O., and Sigon, F., (1989), "Removal of trace metal ions from industrial waters, nuclear effluents and drinking water, with the aid of cross-linked N-carboxymethyl chitosan", Carbohydrate polymers, 11(4), 293-306.
Namasivayam, C., and Senthilkumar, S., (1998), "Removal of arsenic (V) from aqueous solution using industrial solid waste: adsorption rates and equilibrium studies", Industrial and Engineering Chemistry Research, 37(12), 4816-4822.
Ngah, W.S.W., Teong, L.C., Toh, R.H., and Hanafiah, M., (2013), "Comparative study on adsorption and desorption of Cu (II) ions by three types of chitosan–zeolite composites", Chemical Engineering Journal, 223, 231-238.
Nithya, R., Gomathi, T., Sudha, P.N., Venkatesan, J., Anil, S., and Kim, S.-K., (2016), "Removal of Cr (VI) from aqueous solution using chitosan-g-poly (butyl acrylate)/silica gel nanocomposite", International Journal of Biological Macromolecules, 87, 545-554.
Nuhoglu, Y., Malkoc, E., Gürses, A., and Canpolat, N., (2002), "The removal of Cu (II) from aqueous solutions by Ulothrix zonata", Bioresource Technology, 85(3), 331-333.
Othman, Z.A., Hashem, A., and Habila, M.A., (2011), "Kinetic, equilibrium and thermodynamic studies of cadmium (II) adsorption by modified agricultural wastes", Molecules, 16(12), 10443-10456.
Peniche‐Covas, C., Alvarez, L.W., and Argüelles‐Monal, W., (1992), "The adsorption of mercuric ions by chitosan", Journal of Applied Polymer Science, 46(7), 1147-1150.
Periasamy, K., and Namasivayam, C., (1995), "Removal of nickel (II) from aqueous solution and nickel plating industry wastewater using an agricultural waste: peanut hulls", Waste Management, 15(1), 63-68.
Piron, E., Accominotti, M., and Domard, A., (1997), "Interaction between chitosan and uranyl ions. Role of physical and physicochemical parameters on the kinetics of sorption", Langmuir, 13(6), 1653-1658.
Piron, E., and Domard, A., (1998), "Interaction between chitosan and uranyl ions, Part 2: Mechanism of interaction", International Journal of Biological Macromolecules, 22(1), 33-40.
Qi, L., and Xu, Z., (2004), "Lead sorption from aqueous solutions on chitosan nanoparticles", Colloids and Surfaces A: Physicochemical and Engineering Aspects, 251(1-3), 183-190.
Rahimi, S., Moattari, R.M., Rajabi, L., and Derakhshan, A.A., (2015), "Optimization of lead removal from aqueous solution using goethite/chitosan nanocomposite by response surface methodology", Colloids and Surfaces A: Physicochemical and Engineering Aspects, 484, 216-225.
Reddy, D.H.K., and Lee, S.-M., (2013), "Application of magnetic chitosan composites for the removal of toxic metal and dyes from aqueous solutions", Advances in Colloid and Interface Science, 201, 68-93.
Repo, E., Warchoł, J.K., Bhatnagar, A., and Sillanpää, M., (2011), "Heavy metals adsorption by novel EDTA-modified chitosan–silica hybrid materials", Journal of Colloid and Interface Science, 358(1), 261-267.
Rorrer, G.L., Hsien, T.Y., and Way, J.D., (1993), "Synthesis of porous-magnetic chitosan beads for removal of cadmium ions from wastewater", Industrial and Engineering Chemistry Research, 32(9), 2170-2178.
Rorrer, G.L., and Way, J.D., (2002), "Chitosan beads to remove heavy metal from wastewater", Dalwoo-ChitoSan, 5, 2170-2178.
Saber-Samandari, S., Saber-Samandari, S., Nezafati, N., and Yahya, K., (2014), "Efficient removal of lead (II) ions and methylene blue from aqueous solution using chitosan/Fe-hydroxyapatite nanocomposite beads", Journal of Environmental Management, 146, 481-490.
Saha, S., and Sarkar, P., (2012), "Arsenic remediation from drinking water by synthesized nano-alumina dispersed in chitosan-grafted polyacrylamide", Journal of Hazardous Materials, 227, 68-78.
Sarkar, M., and Majumdar, P., (2011), "Application of response surface methodology for optimization of heavy metal biosorption using surfactant modified chitosan bead", Chemical Engineering Journal, 175, 376-387.
Shankar, P., Gomathi, T., Vijayalakshmi, K., and Sudha, P.N., (2014), "Comparative studies on the removal of heavy metals ions onto cross linked chitosan-g-acrylonitrile copolymer", International Journal of Biological Macromolecules, 67, 180-188.
Sheshmani, S., Nematzadeh, M.A., Shokrollahzadeh, S., and Ashori, A., (2015), "Preparation of graphene oxide/chitosan/FeOOH nanocomposite for the removal of Pb (II) from aqueous solution", International Journal of Biological Macromolecules, 80, 475-480.
Sivakami, M.S., Gomathi, T., Venkatesan, J., Jeong, H.-S., Kim, S.-K., and Sudha, P.N., (2013), "Preparation and characterization of nano chitosan for treatment wastewaters", International Journal of Biological Macromolecules, 57, 204-212.
Sutirman, Z.A., Sanagi, M.M., Karim, J.A., Naim, A.A., and Ibrahim, W.A.W., (2018), "New crosslinked-chitosan graft poly (N-vinyl-2-pyrrolidone) for the removal of Cu (II) ions from aqueous solutions", International Journal of Biological Macromolecules, 107, 891-897.
Tan, Z., Peng, H., Liu, H., Wang, L., Chen, J., and Lu, X., (2015), "Facile preparation of EDTA‐functionalized chitosan magnetic adsorbent for removal of P b (II)", Journal of Applied Polymer Science, 132(32), 1-10.
Turan, D., Kocahakimoğlu, C., Boyacı, E., Sofuoglu, S.C., and Eroğlu, A.E., (2014), "Chitosan-immobilized pumice for the removal of As (V) from waters", Water, Air and Soil Pollution, 225(5), 1931.
Wang, J., and Chen, C., (2006), "Biosorption of heavy metals by Saccharomyces cerevisiae: a review", Biotechnology Advances, 24(5), 427-451.
Wang, J., and Chen, C., (2009), "Biosorbents for heavy metals removal and their future", Biotechnology Advances, 27(2), 195-226.
Wang, L., Xing, R., Liu, S., Yu, H., Qin, Y., Li, K., Feng, J., Li, R., and Li, P., (2010), "Recovery of silver (I) using a thiourea-modified chitosan resin", Journal of Hazardous Materials, 180(1-3), 577-582.
Wang, Y., Li, L., Luo, C., Wang, X., and Duan, H., (2016), "Removal of Pb2+ from water environment using a novel magnetic chitosan/graphene oxide imprinted Pb2+", International Journal of Biological Macromolecules, 86, 505-511.
Witek-Krowiak, A., Chojnacka, K., Podstawczyk, D., Dawiec, A., and Pokomeda, K., (2014), "Application of response surface methodology and artificial neural network methods in modelling and optimization of biosorption process", Bioresource Technology, 160, 150-160.
Xie, M., Zeng, L., Zhang, Q., Kang, Y., Xiao, H., Peng, Y., Chen, X., and Luo, J., (2015), "Synthesis and adsorption behavior of magnetic microspheres based on chitosan/organic rectorite for low-concentration heavy metal removal", Journal of Alloys and Compounds, 647, 892-905.
Xu, Y., Nakajima, T., and Ohki, A., (2002), "Adsorption and removal of arsenic (V) from drinking water by aluminum-loaded Shirasu-zeolite", Journal of Hazardous Materials, 92(3), 275-287.
Yavuz, A.G., Dincturk-Atalay, E., Uygun, A., Gode, F., and Aslan, E., (2011), "A comparison study of adsorption of Cr (VI) from aqueous solutions onto alkyl-substituted polyaniline/chitosan composites", Desalination, 279(1-3), 325-331.
Zavareh, S., Zarei, M., Darvishi, F., and Azizi, H., (2015), "As (III) adsorption and antimicrobial properties of Cu–chitosan/alumina nanocomposite", Chemical Engineering Journal, 273, 610-621.
Zhang, L., Luo, H., Liu, P., Fang, W., and Geng, J., (2016), "A novel modified graphene oxide/chitosan composite used as an adsorbent for Cr (VI) in aqueous solutions", International Journal of Biological Macromolecules, 87, 586-596.
Zhang, L., Xia, W., Teng, B., Liu, X., and Zhang, W., (2013), "Zirconium cross-linked chitosan composite: Preparation, characterization and application in adsorption of Cr (VI)", Chemical Engineering Journal, 229, 1-8.
Zhang, Y., Yan, T., Yan, L., Guo, X., Cui, L., Wei, Q., and Du, B., (2014), "Preparation of novel cobalt ferrite/chitosan grafted with graphene composite as effective adsorbents for mercury ions", Journal of Molecular Liquids, 198, 381-387.
Zhou, Y.-T., Nie, H.-L., Branford-White, C., He, Z.-Y., and Zhu, L.-M., (2009), "Removal of Cu2+ from aqueous solution by chitosan-coated magnetic nanoparticles modified with α-ketoglutaric acid", Journal of Colloid and Interface Science, 330(1), 29-37.
Zhu, C., Luan, Z., Wang, Y., and Shan, X., (2007), "Removal of cadmium from aqueous solutions by adsorption on granular red mud (GRM)", Separation and Purification Technology, 57(1), 161-169.
Zimmermann, A.C., Mecabô, A., Fagundes, T., and Rodrigues, C.A., (2010), "Adsorption of Cr (VI) using Fe-crosslinked chitosan complex (Ch-Fe)", Journal of Hazardous Materials, 179(1-3), 192-196.
)
