Endocrine disrupting chemicals (EDCs) are emerging water contaminants and efficient elimination is a_x000D_ greater challenge for environmental engineers. The present communication is intended to synthesize the novel dense nanocomposite materials precursors to the bentonite and 3-mercaptopropyletrimethoxy silane/or 3-aminopropyletriethoxy silane. The materials are highly dense, hence the surface area is significantly reduced compared to the pristine bentonite. Further, the materials are intended to be utilized in the elimination of one of the important EDC 17α-_x000D_ ethinylestradiol (EE2). The sorption mechanism is greatly demonstrated based on various parametric studies. It is shown that grafted silane with bentonite network provides enhanced hydrophobicity with organophilic nature and greatly favors the uptake of EE2 at a wide range of pH (5.0-10.0). Relatively rapid uptake of EE2 by the nanocomposite solids followed by a pseudo-second-order kinetic model indicated that the materials are highly efficient for elimination of EE2. Increasing the concentration of EE2 (1.0 to 10.0mgL-1) favored the extent of removal of EE2 and followed the Langmuir adsorption isotherm. Further, the increase in background electrolytes by 1,000 times did not affect the_x000D_ removal of EE2 by these nanocomposites, indicating the sorbing species are attracted with relatively stronger forces. Moreover, the simultaneous presence of several co-ions did not affect the percentage elimination of EE2; this, perhaps, shows an enhanced selectivity of materials towards the 17α-ethinylestradiol. A high loading capacity of EE2 is achieved under column reactor operation using these nanocomposites. Additionally, the materials are promising in the real matrix treatment.

17α-Ethinylestradiol Elimination Real Matrix Treatment Nanocomposites Silane Grafted Bentonite FixedbedTreatment Hydrophobic Interactions

Kosek K, Luczkiewicz A, Fudala-Ksi??ek S, Jankowska K, Szopi?ska M, Svahn O, Tr?nckner J, Kaiser A, Langas V, Bj?rklund E, Environ. Sci. Policy, 112, 213 (2020)
Lei M, Zhang L, Lei J, Zong L, Li J, Wu Z, Wang Z, BioMed. Res. Int., 2015, 1 (2015)
Gavrilescu M, Demnerov? K, Aamand J, Agathos S, Fava F, New Biotechnol., 32, 147 (2015)
Silva CP, Otero M, Esteves V, Environ. Pollut., 165, 38 (2012)
Bennasroune A, Rojas L, Foucaud L, Goulaouic S, Laval-Gilly P, Fickova M, Couleau N, Durandet C, Henry S, Falla J, Int. J. Immunopathol. Pharmacol., 25, 365 (2012)
Tian S, Liu Y, Liu S, Zeng G, Jiang L, Tan X, Huang X, Yin Z, Liuab N, Liab J, RSC Adv., 8, 4273 (2018)
Larcher S, Delb?s G, Robaire B, Yargeau V, Environ. Int., 39, 66 (2012)
Han J, Qiu W, Cao Z, Hu J, Gao W, Water Res., 47, 2273 (2013)
Essandoh HMK, Tizaoui C, Mohamed MHA, Sep. Sci. Technol., 47, 777 (2012)
Oliveira HG, Ferreira LH, Bertazzoli R, Longo C, Water Res., 72, 305 (2015)
Pauwels B, Wille K, Noppe H, De Brabander H, Van de Wiele T, Verstraete W, Boon N, Biodegradation, 19, 683 (2008)
Cargou?t M, Perdiz D, Mouatassim-Souali A, Tamisier-Karolak S, Levi Y, Sci. Total Environ., 324, 55 (2004)
Atkinson SK, Marlatt VL, Kimpe LE, Lean DRS, Trudeau VL, Blais JM, Sci. Total Environ., 430, 119 (2012)
De Assis S, Warri A, Cruz MI, Laja O, Tian Y, Zhang B, Wang Y, Huang THM, Hilakivi-Clarke L, Nat. Commun., 3, 1 (2012)
Vandenberg LN, Colborn T, Hayes TB, Heindel JJ, Jacobs DR, Jr., Lee DH, Myers JP, Shioda T, Soto AM, vom Saal FS, Reprod. Toxicol., 38, 1 (2013)
Komesli OT, Muz M, Ak MS, Bak��rdere S, Gokcay CF, Chem. Eng. J., 277, 202 (2015)
Scala-Benuzzi ML, Takara EA, Alderete M, Soler-Illia GJAA, Schneider RJ, Raba J, Messina GA, Microchem. J., 141, 287 (2018)
Wit MD, Keil D, van der Ven K, Vandamme S, Witters E, Coen WD, Gen. Comp. Endocrinol., 167, 190 (2010)
Feng Y, Zhang Z, Gao P, Su H, Yu Y, Ren N, J. Hazard. Mater., 175, 970 (2010)
Kidd KA, Blanchfield PJ, Mills KS, Palace VP, Evans RE, Lazorchak JM, Flick RW, Proc. Natl. Acad. Sci., 104, 8897 (2007)
Gao P, Liang Z, Zhao Z, Wang W, Yang C, Hu B, Cui F, Chemosphere, 234, 438 (2019)
Chaves FP, Gomes G, Della-Flora A, Dallegrave A, Sirtori C, Saggioro EM, Bila DM, Sci. Total Environ., 746, 141041 (2020)
Wang S, Li L, Yu S, Dong B, Gao N, Wang X, Chem. Eng. J., 406, 126722 (2020)
Castellanos RM, Bassin JP, Bila DM, Dezotti M, Environ. Pollut., 274, 116551 (2021)
Anastopoulos I, Mittal A, Usman M, Mittal J, Yu G, N??ez-Delgado A, Kornaros M, J. Mol. Liq., 269, 855 (2018)
Anjum H, Johari K, Gnanasundaram N, Ganesapillai M, Arunagiri A, Regupathi I, Thanabalan M, J. Mol. Liq., 277, 1005 (2019)
Burham N, Sayed M, Minerals, 6, 129 (2016)
Zafar S, Khan MI, Lashari MH, Khraisheh M, Almomani F, Mirza ML, Khalid N, Emergent Mater., 3, 857 (2020)
Soeiro TN, De Freitas ED, Maia GS, Santos AB, Vieira MGA, Guirardello R, Chem. Eng. Trans., 57, 619 (2017)
Kyzas GZ, Fu J, Lazaridis NK, Bikiaris DN, Matis KA, J. Mol. Liq., 209, 87 (2015)
He J, Guo J, Zhou Q, Yang J, Fang F, Huang Y, Chemosphere, 216, 59 (2019)
Burgos AE, Ribeiro-Santos TA, Lago RM, Water Sci. Technol. J. Int. Assoc. Water Pollut. Res., 74, 663 (2016)
Dinesh GK, Chakma S, J. Taiwan Inst. Chem. Eng., 100, 95 (2019)
Chauhan R, Dinesh GK, Alawa B, Chakma S, Chemosphere, 277, 130324 (2021)
Dinesh GK, Chakma S, Ultrason. Sonochem, 50, 311 (2019)
Kumar VV, Avisar D, Prasanna VL, Betzalel Y, Mamane H, J. Hazard. Mater., 398, 122880 (2020)
Vaddadi LP, Avisar D, Vadivel VK, Menashe O, Kurzbaum E, Cohen-Yaniv V, Mamane H, Materials, 13, 83 (2019)
Mita L, Forte M, Rossi A, Adamo C, Rossi S, Mita DG, Guida M, Portaccio M, Godievargova T, Yavour I, Ann. Environ. Sci. Toxicol., 2, 48 (2017)
Han J, Qiu W, Meng S, Gao W, Water Res., 46, 5715 (2012)
Kumar AK, Mohan SV, Desalination, 276, 66 (2011)
Rudder J, Wiele TV, Dhooge W, Comhaire F, Verstraete W, Water Res., 38, 184 (2004)
D?az-Quiroz C, Gonz?lez L, ?lvarez MS, Hernandez-Chavez JF, Rodriguez A, Delve FJ, Ulloa-Mercado G, Sep. Purif. Technol., 250, 117068 (2020)
Belhadri M, Sassi M, Bengueddach A, J. Water Chem. Technol., 41, 357 (2019)
Turan NG, Ozgonenel O, Sci. World J., 2013, 342628 (2013)
Sen TK, Gomez D, Desalination, 267, 286 (2011)
Guo J, Chen S, Liu L, Li B, Yang P, Zhang L, Feng Y, J. Colloid Interface Sci., 382, 61 (2012)
Tiwari D, Lee SM, Chem. Eng. J., 204-206, 23 (2012)
Lee SM, Lalhmunsiama, Thanhmingliana, Tiwari D, Chem. Eng. J., 270, 496 (2015)
Lalhmunsiama, Lee SM, Tiwari D, Chem. Eng. J., 225, 128 (2013)
Lalchhingpuii, Tiwari D, Lalhmunsiama, Lee SM, Chem. Eng. J., 328, 434 (2017)
Marjanovi? V, Lazarevi? S, Jankovi?-?astvan I, Potkonjak B, Jana?kovi? D, Petrovi? R, Chem. Eng. J., 166, 198 (2011)
Sahan T, Erol F, Y��lmaz S, Microchem. J., 138, 360 (2018)
Y��lmaz S, Sahan T, Karabakan A, Korean J. Chem. Eng., 34, 2225 (2017)
Liang X, Xu Y, Sun G, Wang L, Sun Y, Sun Y, Qin X, Chem. Eng. J., 174, 436 (2011)
Carvalho W, Vignado C, Fontana J, J. Hazard. Mater., 153, 1240 (2008)
Perrotti TC, Freitas NS, Alzamora M, S?nchez DR, Carvalho NM, J. Environ. Chem. Eng., 7, 103237 (2019)
Asgari M, Abouelmagd A, Sundararaj U, Appl. Clay Sci., 146, 439 (2017)
Piscitelli F, Posocco P, Toth T, Fermeglia M, Pricl S, Mensitieri G, Lavorgna M, J. Colloid Interface Sci., 351, 108 (2010)
Qin Z, Yuan P, Yang S, Liu D, He H, Zhu J, Appl. Clay Sci., 99, 229 (2014)
Paul B, Martens WN, Frost RL, Appl. Surf. Sci., 257, 5552 (2011)
Walcarius A, Etienne M, Bessi?re J, Chem. Mater., 14, 2757 (2002)
Xue A, Zhou S, Zhao Y, Lu X, Han P, J. Hazard. Mater., 194, 7 (2011)
Cui H, Qian Y, Li Q, Wei Z, Zhai J, Appl. Clay Sci., 72, 84 (2013)
Ko?ak A, Lobnik A, Bauman M, Int. J. Appl. Ceram. Technol., 12, 461 (2015)
Abeywardena SBY, Perera S, de Silva KMN, Tissera NP, Int. Nano Lett., 7, 237 (2017)
Bui TX, Kang SY, Lee SH, Choi H, J. Hazard. Mater., 193, 156 (2011)
Al-Khateeb LA, Obaid AY, Asiri NA, Salam MA, J. Ind. Eng. Chem., 20, 916 (2014)
Lalhmunsiama, Lalchhingpuii, Nautiyal BP, Tiwari D, Choi SI, Kong SH, Lee SM, J. Colloid Interface Sci., 467, 203 (2016)
Zhang Y, Zhou JL, Water Res., 39, 3991 (2005)
Lalhmunsiama, Lee SM, Lalchhingpuii, Tiwari D, J. Environ. Chem. Eng., 4, 1537 (2016)
Hasan Z, Choi EJ, Jhung SH, Chem. Eng. J., 219, 537 (2013)
Vidal CB, Oliveira JT, Raulino GSC, de Q. Melo D, Pessoa GP, dos Santos AB, do Nascimento RF, XX Congresso Brasileiro de Engenharia Quima., 1, 2 (2014)
Lee SM, Tiwari D, Prasad SK, RSC Adv., 5, 46834 (2015)
Ifelebuegu AO, Ukpebor JE, Obidiegwu CC, Kwofi BC, Glob. J. Environ. Sci. Manag., 1, 205 (2015)
Thanhmingliana T, Lee SM, Tiwari D, Prasad SK, RSC Adv., 5, 46834 (2015)
Joseph L, Zaib Q, Khan IA, Berge ND, Park YG, Saleh NB, Yoon Y, Water Res., 45, 4056 (2011)
Gao P, Yang C, Liang Z, Wang W, Zhao Z, Hu B, Cui F, Chemosphere, 214, 361 (2019)