@article{2e320db102be43b7b2c5f6f7bcd4dfed,
title = "Superabsorbent nanocomposite as micronutrient slow-release fertilizer",
abstract = "In this research, sodium alginate grafted by poly(acrylate-co-acrylamide) loaded montmorillonite (MMT) and the addition of boric acid as micronutrients into the superabsorbent nanocomposite through in-situ method have been successfully synthesized. We developed superabsorbent nanocomposite with montmorillonite obtained by increasing the amount of montmorolite, which would increase the swelling capacity and by adding boric acid micronutrients will also increase water swelling capacity. The best swelling capacity to water of superabsorbent nanocomposite obtained 426.337 g/g that formulated with MMT contents approximately 20.0 % wt and 0.1 g boric acid. The optimal release capacity of boric acid is 25.561 % for 8000 min or about 6 days. This is supported by the study of kinetics for the water swelling in pseudo second-order while the boric acid release is pseudo first-order obtained. The nanocomposite superabsorbents that are successfully synthesized show that the release of boric acid micronutrients as slow release can be controlled and denoted interesting materials to be applied in agriculture.",
keywords = "micronutrient, montmorillonite, nanocomposite, sodium alginate, superabsorbent",
author = "H. Helmiyati and D. Nugraha",
note = "Funding Information: Ac k n o wle d g e m e n ts This study is funded by PITTA Grant Universitas Indonesia with contract No: 2268/UN2.R3.1/HKP.05.00/2018 Re fe re n c e s [1] TilmanD,CassmanKG,MatsonPA,NaylorRandPolaskyS2002Nature418 671–7 [2] BortolinA,SeafimAR,AouadaFA,MattosoLHC andRibeiroC 2016J.AgricFoodChem 64 3133–40 [3] Li J, Zhuang X, Font O, Moreno N, Vallejo V R, Querol X and Tobias A 2014. J. Hazard. Mater. 265 242–52 [4] Azeem B,KuShaariK,ManZ,BasitA andTrinhTT 2014J.ControlledRelease18111–21 [5] KoshibaT,KobayashiM,MatsuokaK,FujiwaraTandMatohT2013SoilSci.PlantNutr.59 189–94 [6] Helmiyati,AbbasG H andKurniawanS2017IOPConf.Ser.:Mater.Sci.Eng.188012024 [7] Helmiyati,SaefumillahAandYuliantiW2014AsianJ.Chem.267337–42 [8] Hussien R A, Donia A M, Atia A A, El-Sedfy O F, El-Hamid A R A and Rashad R T 2012 Catena 92 172–8 [9] LeeWFandChenYC2005Eur.Polym.J.411605–12 [10] Wu J, Wei Y, Lin J and Lin S 2003 Polymer 44 6513–20 [11] Kosemund K, Schlatter H, Ochsenhirt J L, Krause E L, Marsman D S and Erasala G N 2009 Regul. Toxicol. Pharmcol. 53 81–9 [12] Yu S H, Mi F L, Wu Y B, Peng C K, Shyu S S and Huang R N 2005 J. Appl. Polym. Sci. 98 538–49 [13] Samanta H S and Ray S K 2014 Carbohydr. Polym. 99 666-78 [14] Ni B, Liu M, L{\"u} S, Xie L and Wang Y 2010 J. Agric. Food Chem. 58 12373–8 [15] Paulino A T, Guilherme M R, Reis A V, Tambourgi E B, Nozaki J and Muniz E C 2007 J. Hazard. Mater. 147 139–47 [16] Helmiyati and Aprilliza M 2017 IOP Conf. Ser.: Mater. Sci. Eng. 188 012019 [17] Helmiyati H and Syarifudin A 2018 AIP Conf. Proc. 2023 020080 [18] Rashidzadeh A and Olad A 2014 Carbohydr. Polym. 114 269–78 Publisher Copyright: {\textcopyright} 2020 Published under licence by IOP Publishing Ltd.; 3rd International Symposium on Current Progress in Functional Materials 2018, ISCPFM 2018 ; Conference date: 08-08-2018 Through 09-08-2018",
year = "2020",
month = apr,
day = "28",
doi = "10.1088/1757-899X/763/1/012050",
language = "English",
volume = "763",
journal = "IOP Conference Series: Materials Science and Engineering",
issn = "1757-8981",
publisher = "IOP Publishing Ltd.",
number = "1",
}
