[1] | Gupta, V. K., Suhas, Ali, I., and Saini, V. K. (2004). Removal of Rhodamine B, Fast Green, and Methylene Blue from Wastewater Using Red Mud, an Aluminum Industry Waste. Industrial and Engineering Chemistry Research, 43(7), 1740–1747. |
[2] | Vadivelan, V., and Vasanth Kumar, K. (2005). Equilibrium, kinetics, mechanism, and process design for the sorption of methylene blue onto rice husk. Journal of Colloid and Interface Science, 286(1), 90–100. |
[3] | Dawood, S, and Sen, T. K. (2012). Removal of anionic dye Congo red from aqueous solution by raw pine and acid-treated pine cone powder as adsorbent: equilibrium, thermodynamic, kinetics, mechanism and process design. Water Research, 46(6), 933–1946. |
[4] | Mustafa Al Bakri, A. M., kamarudin, H., Bnhussain, M., Nizar, I. K., and Mastura, W. I. W. (2013). Mechanism and chemical reaction of fly ash geopolymer cement- A review. Journal of Chemical Information and Modeling, 53(5), 1689-1699. |
[5] | Khater, H. M., Ezzat, M., and Nagar, A. M. El. (2016). Alkali Activated Eco-friendly Metakaolin/Slag Geopolymer Building Bricks. Chemistry and Materials Research, 8(1), 21–32. |
[6] | Buchwald, A., Zellmann, H. D., and Kaps, C. (2011). Condensation of aluminosilicate gels-model system for geopolymer binders. Journal of Non-Crystalline Solids, 357(5), 1376–1382. |
[7] | López, F. J., Sugita, S., Tagaya, M., and Kobayashi, T. (2014). Geopolymers Using Rice Husk Silica and Metakaolin Derivatives; Preparation and Their Characteristics. Journal of Materials Science and Chemical Engineering, 2(5), 35–43. |
[8] | Nogueira, C. A., and Margarido, F. (2012). Production and Characterisation of Amorphous Silica. 4th International Conference on Engineering for Waste and Biomass Valorisation. https://doi.org/10.13140/2.1.1596.2888. |
[9] | Mustafa Al Bakri, A. M., Kamarudin, Bnhussain, Nizar, and Mastura. (2013). Mechanism and Chemical Reaction of Fly Ash Geopolymer Cement- A Review,” Journal of Chemical Information and Modeling, 53(5), 1689–1699. |
[10] | Moreno-piraján, J. C., and Giraldo, L. (2012). Heavy Metal Ions Adsorption from Wastewater Using Activated Carbon from Orange Peel, pp. 926–937. |
[11] | Langmuir, I. (1916). The Constitution and Fundamental Properties of Solids and Liquids. Part I. Solids. Journal of the American Chemical Society, 252, 2221–2295. |
[12] | Freundlich, H. M. F. (1906). Over the adsorption in solutions. Journal of Physical Chemistry, 57, 385–471. |
[13] | Foo, K. Y., and Hameed, B. H. (2010). Insights into the modeling of adsorption isotherm systems. Chemical Engineering Journal. https://doi.org/10.1016/j.cej.2009.09.013. |
[14] | Turiel, E., Perez-Conde, C., and Martin-Esteban, A. (2003). Assessment of the cross-reactivity and binding sites characterisation of a propazine-imprinted polymer using the Langmuir-Freundlich isotherm. The Analyst, 128(2), 137–141. |
[15] | Nmiri, A., Hamdi, N., Duc, M., and Srasra, E. (2017). Synthesis and characterization of kaolinite-based geopolymer: Alkaline activation effect on calcined kaolinitic clay at different temperatures, 8(2), 276–290. |
[16] | Lee, W. K. W. and Van Deventer, J. S. J. (2002b). The effect of ionic contaminants on the early-age properties of alkali-activated fly ash-based cements. Cement and Concrete Research, 32(4), 577–584. |
[17] | Swanepoel, J. C., and Strydom, C. A. (2002). Utilisation of fly ash in a geopolymeric material. In Applied Geochemistry, 17, 1143–1148. |
[18] | Phair, J. W., and Van Deventer, J. S. J. (2002). Effect of the silicate activator pH on the microstructural characteristics of waste-based geopolymers. International Journal of Mineral Processing, 66(1–4), 121–143. |
[19] | Mu, M. N., Zeliæ, J., and Joziæ, D. (2012). Microstructural Characteristics of Geopolymers Based on Alkali-Activated Fly Ash, 26(2), 89–95. |
[20] | Silva, P. De, Sagoe-Crenstil, K., and Sirivivatnanon, V. (2007). Kinetics of geopolymerization: Role of Al2O3 and SiO2. Cement and Concrete Research, 37(4), 512–518. |
[21] | Lloyd, R. R., Provis, J. L., and Van Deventer, J. S. J. (2009). Microscopy and microanalysis of inorganic polymer cements. 1: Remnant fly ash particles. Journal of Materials Science, 44(2), 608–619. |
[22] | Duxson, P., Fernández-Jiménez, A., Provis, J. L., Lukey, G. C., Palomo, A., and Van Deventer, J. S. J. (2007). Geopolymer technology: The current state of the art. Journal of Materials Science, 42(9), 2917–2933. |
[23] | Hajimohammadi, A., Provis, J. L., and Van Deventer, J. S. J. (2011). The effect of silica availability on the mechanism of geopolymerisation. Cement and Concrete Research, 41(3), 210–216. |
[24] | Li, Z. and Liu, S. (2007). Influence of slag as additive on compressive strength of fly ash-based geopolymer. Journal of Materials in Civil Engineering, 19(6), 470–474. |
[25] | Guo, X. L, Shi, H. S, and Dick, W. A. (2010). Compressive strength and microstructural characteristics of class C fly ash geopolymer. Cement and Concrete Composites, 32(2), 142–147. |
[26] | Poghossian, A. A. (1997). Determination of the pHpzc of insulators surface from capacitance–voltage characteristics of MIS and EIS structures. Sensor and Actuator B: Chemical, 44, 551–553. |
[27] | Ebrahimian Pirbazari, A., Saberikhah, E., Badrouh, M., and Emami, M. S. (2014). Alkali treated Foumanat tea waste as an efficient adsorbent for methylene blue adsorption from aqueous solution. Water Resources and Industry, 6, 64–80. |
[28] | Shaibu, S. E., Adekola, F. A., Adegoke, H. I., and Ayanda, O. S. (2014). A comparative study of the adsorption of methylene blue onto synthesized nanoscale zero-valent iron-bamboo and manganese-bamboo composites. Materials, 7(6), 4493–4507. |
[29] | Yang, H, and Feng, Q. (2010b). Direct synthesis of pore-expanded amino-functionalized mesoporous silicas with dimethyldecylamine and the effect of expander dosage on their characterization and decolorization of sulphonated azo dyes. Microporous and Mesoporous Materials, 135, 124–130. |
[30] | Kavitha, D., and Namasivayam, C. (2007). Experimental and kinetic studies on methylene blue adsorption by coir pith carbon. Bioresource Technology, 98(1), 14–21. |
[31] | Koumanova, B., and Allen, S. J. (2005). Decolourisation of Water / Wastewater Using Adsorption (Review). Journal of the University of Chemical Technology and Metallurgy, 40, 175–192. |
[32] | Gialamouidis, D., Mitrakas, M., and Liakopoulou-Kyriakides, M. (2010). Equilibrium, thermodynamic and kinetic studies on biosorption of Mn(II) from aqueous solution by Pseudomonas sp., Staphylococcus xylosus and Blakeslea trispora cells. Journal of Hazardous Materials, 182(1–3), 672–680. |
[33] | Idris, M.N., Ahmad, Z.A. and Ahmad, M.. (2011). Adsorption Equilibrium of Malachite Green Dye onto Rubber Seed Coat Based Activated Carbon. International Journal of Basic and Applied Sciences, 11, 305–311. |
[34] | Kannan, N., and Meenakshisundaram, M. (2002). Adsorption of Congo Red on various activated carbons. Water, Air, and Soil Pollution, 138(1–4), 289–305. |
[35] | Garg, V. K., Gupta, R., Yadav, A. B., and Kumar, R. (2003). Dye removal from aqueous solution by adsorption on treated sawdust. Bioresource Technology, 89(2), 121–124. |
[36] | Salleh, M. A. M., Mahmoud, D. K., Karim, W. A. W. A., and Idris, A. (2011). Cationic and anionic dye adsorption by agricultural solid wastes: A comprehensive review. Desalination. https://doi.org/10.1016/j.desal.2011.07.019. |
[37] | Kannan, N., and Sundaram, M. M. (2001). Kinetics and mechanism of removal of methylene blue by adsorption on various carbons—a comparative study. Dyes and Pigments, 51(1), 25–40. |
[38] | Bulut, Y., and Aydin, H. (2006). A kinetics and thermodynamics study of methylene blue adsorption on wheat shells. Desalination, 194(1–3), 259–267. |
[39] | Amuda, O. S., Olayiwola, A. O., and Alade, A. O. (2014). Adsorption of Methylene Blue from Aqueous Solution Using Steam-Activated Carbon Produced from Lantana camara Stem. Journal of Environmental Protection, 1, 1352–1363. |
[40] | Mohan, S. V., and Karthikeyan, J. (1997). Removal of lignin and tannin colour from aqueous solution by adsorption onto activated charcoal. Environmental Pollution, 97(1–2), 183–187. |
[41] | Hameed, B. H., Din, A. T. M., and Ahmad, A. L. (2007). Adsorption of methylene blue onto bamboo-based activated carbon: Kinetics and equilibrium studies. Journal of Hazardous Materials, 141(3), 819–825. |
[42] | He, J., Hong, S., Zhang, L., Gan, F., and Ho, Y. (2010). Equilibrium and Thermodynamic Parameters of. Fresenius Environmental Bulletin, 19(11), 2651–2656. |
[43] | Dada, A. ., Olalekan, A., Olatunya, A., and Dada, O. (2012). Langmuir, Freundlich, Temkin and Dubinin – Radushkevich Isotherms Studies of Equilibrium Sorption of Zn2+ Unto Phosphoric Acid Modified Rice Husk. IOSR Journal of Applied Chemistry, 3(1), 38–45. |
[44] | Nethaji, S., Sivasamy, A., and Mandal, A. B. (2013). Adsorption isotherms, kinetics and mechanism for the adsorption of cationic and anionic dyes onto carbonaceous particles prepared from Juglans regia shell biomass. International Journal of Environmental Science and Technology, 10(2), 231–242. |
[45] | Annadurai, G., Juang, R. S., and Lee, D. J. (2002). Use of cellulose-based wastes for adsorption of dyes from aqueous solutions. Journal of Hazardous Materials, 92, 263–274. |
[46] | Bushra, K., Azra, Y., Muhammed, F., Lubna, L. and Benish, I. (2010). Study of Colour Measurements of Leather Dyed with Walnut Bark Natural Dye. Journal of Industrial Resources, 53, 252–257. |
[47] | Consolin Filho, N., Venancio, E. C., Barriquello, M. F., Hechenleitner, A. A. W., and Pineda, E. A. G. (2007). Methylene blue adsorption onto modified lignin from sugar cane bagasse. Ecletica Quimica, 32, 63–70. |
[48] | Amuda, O. S., Olayiwola, A. O., and Alade, A. O. (2014). Adsorption of Methylene Blue from Aqueous Solution Using Steam-Activated Carbon Produced from Lantana camara Stem. Journal of Environmental Protection, 1, 1352–1363. |
[49] | Elass, K., Laachach, A., Alaoui, A., and Azzi, M. (2010). Removal of methylene blue from aqueous solution using ghassoul, a low-cost adsorbent. Applied Ecology and Environmental Research, 8(2), 153–163. |
[50] | Postai, D. L., Demarchi, C. A., Zanatta, F., Melo, D. C. C., and Rodrigues, C. A. (2016). Adsorption of rhodamine B and methylene blue dyes using waste of seeds of Aleurites Moluccana, a low cost adsorbent. Alexandria Engineering Journal, 55(2), 1713–1723. |
[51] | Ji, B., Shao, F., Hu, G., Zheng, S., Zhang, Q. and Xu, Z. (2009). Adsorption of methyl tert-butyl ether (MTBE) from aqueous solution by porous polymeric adsorbents. Journal of Hazardous Materials, 161(1), 81–87. |