Synthesis of Silica-PEG By Physically Coating With PEG 4000 For Absorption of Ion Nitrate

Aster Rahayu, Maryudi Maryudi, Joni Aldilla Fajri, Lee Wah Lim, Nuraini Nuraini


Abstract: All production activities will eventually produce waste, especially liquid waste. The nitrate ion (NO3-) is one of the substances in liquid waste that can have a significant impact on water systems and human health. Several methods can be used to treat the nitrate contained in the water, such as adsorption, phytoremediation, and wetland treatment. One of its methods was adsorption. The silica was modified with polymer due to its huge carbon chain. This research was focused on optimizing the ability of silica-based materials using PEG by physically coating them since PEG has a long carbon chain that could be transformed into a helix. In this research, the adsorbent will be prepared from modified silica gel with PEG 4000 by physical coating. Several parameters will be observed, including the effect of coating time, silica-PEG ratio, and PEG concentration. The capacity of silica-PEG to absorb NO3- is being studied. The characterization of functional group content in silica-PEG was carried out by Fourier Transform Infrared (FTIR). The study results show that the coating time was 10 minutes with the ratio of silica to PEG of 1:5, and the concentration of PEG used was 15%, indicating the optimum performance of silica-PEG when used as an absorbent, which achieved 84.44 % nitrate removal. An increase in the absorption capacity of silica-PEG demonstrates the ability of silica-PEG as a porous material. It was compared to silica gel without the PEG coating process, which was 9.09% to 84.44%.

Abstrak: Semua kegiatan produksi pada akhirnya akan menghasilkan limbah, terutama limbah cair. Limbah cair biasanya akan bermuara di sungai dan berakhir di laut. Salah satu zat dalam limbah cair adalah ion nitrat (NO3-) yang mana dalam jumlah banyak dapat mengganggu sistem perairan dan kesehatan. Beberapa metode dapat digunakan untuk mengolah nitrat yang terkandung dalam air, seperti adsorpsi. Salah satunya dimodifikasi dengan polimer karena memiliki rantai karbon yang besar. Penelitian ini dikonsentrasikan untuk menyelidiki optimalisasi kemampuan silika dengan PEG dengan pelapisan fisik karena PEG memiliki rantai karbon panjang yang dapat bertransformasi menjadi heliks. Dalam penelitian ini, adsorben akan dibuat dari silika gel termodifikasi dengan PEG 4000 dengan pelapisan fisik. Beberapa parameter yang akan diamati antara lain pengaruh waktu pelapisan, rasio silika-PEG, konsentrasi PEG, dan temperatur pelapisan. Kinerja silika-PEG untuk menyerap NO3- diselidiki. Karakterisasi kandungan gugus fungsi pada silika-PEG dilakukan dengan Fourier Transform InfraRed (FTIR). Hasil penelitian menunjukkan bahwa waktu pelapisan adalah 10 menit dengan perbandingan silika dan PEG 1:5, dan konsentrasi PEG yang digunakan adalah 15%, menunjukkan kinerja silika-PEG yang optimum bila digunakan sebagai penyerap NO3-. Kemampuan silika-PEG sebagai bahan berpori dibuktikan dengan peningkatan kapasitas penyerapan silika-PEG dibandingkan silika gel tanpa proses pelapisan PEG.


Adsorption; Nitrates, PEGs; physically coating

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Ahmadi-Khaneghah, A., Omidi-Ghallemohamadi, M., & Behniafar, H. (2019). PEG-Based Epoxy And Epoxy/Silica Networks: Thermal, Mechanical, And Thermo-Mechanical Investigations. International Journal Of Adhesion And Adhesives, 95. Https://Doi.Org/10.1016/J.Ijadhadh.2019.102430

An, J., Forchheimer, D., Sävmarker, J., Brülls, M., & Frenning, G. (2020). Nanoscale Characterization Of Pegylated Phospholipid Coatings Formed By Spray Drying On Silica Microparticles. Journal Of Colloid And Interface Science, 577, 92–100. Https://Doi.Org/10.1016/J.Jcis.2020.05.045

Catauro, M., Tranquillo, E., Salzillo, A., Capasso, L., Illiano, M., Sapio, L., & Naviglio, S. (2018). Silica/Polyethylene Glycol Hybrid Materials Prepared By A Sol-Gel Method And Containing Chlorogenic Acid. Molecules, 23(10). Https://Doi.Org/10.3390/Molecules23102447

Darjito, Khunur, M. M., Purwonugroho, D., Yuliantari, M. A., Sari, Z. R., Suryaningrat, L. H. A. K., & Prananto, Y. P. (2019). Adsorption Of M(II) (M = Mn, Cu, Zn) In Various Ph And Contact Time Using Chitosan-Silica Prepared By Sol-Gel Method. Rasayan Journal Of Chemistry, 12(3), 1485–1492. Https://Doi.Org/10.31788/RJC.2019.1235220

Deswati, D., Yani, E., Safni, S., Norita Tetra, O., & Pardi, H. (2020). Development Methods In Aquaponics Systems Using Biofloc To Improve Water Quality (Ammonia, Nitrite, Nitrate) And Growth Of Tilapia And Samhong Mustard. International Journal Of Environmental Analytical Chemistry. Https://Doi.Org/10.1080/03067319.2020.1839437

Fahmiati, F., Nuryono, N., & Narsito, N. (2010). Adsorption Thermodynamics Of Cd(Ii), Ni(Ii), And Mg(Ii) On 3-Mercapto-1,2,4-Triazole Immobilized Silica Gel. Indonesian Journal Of Chemistry, 6(1), 52–55. Https://Doi.Org/10.22146/Ijc.21773

Fathurrahman, M. (2020). Synthesis And Characterization Of Silica Gel From Corn Cob Ash And Its Adsorption Study Toward Cu(Ii) Metal Ion. Jurnal Kartika Kimia, 3(2). Https://Doi.Org/10.26874/Jkk.V3i2.66

Hamza, S. F., El-Sawy, M. M., Alian, N. A., & Shaker, N. O. (2021). Synthesis And Evaluation Of Performance Characteristics Green Composites From Sustainable Fatty Chitosan Graft Copolymer With Acrylic Acid For Wastewater Treatment. Egyptian Journal Of Chemistry, 64(10), 6007–6015. Https://Doi.Org/10.21608/Ejchem.2021.73857.3656

Luh Gede Ratna Juliasih, N., Hidayat, D., & Prasetio Ersa, M. (2017). Penentuan Kadar Nitrit Dan Nitrat Pada Perairan Teluk Lampung Sebagai Indikator Kualitas Lingkungan Perairan. In Analit: Analytical And Environmental Chemistry (Vol. 2, Issue 02).

Indriyani, L. A., Arif, Z., Lindab, R., Purwaningsih, H., Rafi, M., (2019). Pengoptimuman Kondisi Adsorpsi Cd(II) Oleh Adsorben Berbasis Silika Termodifikasi Glisina Menggunakan Central Composite Design. In Jurnal Kimia Sains Dan Aplikasi (Vol. 22, Issue 5). Https://

Linda, R., Abdullah, Rafi, M., Rahayu, A., Lim, L. W., & Takeuchi, T. (2021). Separation Of Polar Compounds Using Poly(Ethylene Oxide) Bonded Stationary Capillary Liquid Chromatography. Sains Malaysiana, 50(11), 3241–3250. Https://Doi.Org/10.17576/Jsm-2021-5011-08

Kukwa, R., Tyoker Kukwa, D., David Oklo, A., Thaddeus Ligom, T., Ishwah, B., & Ajegi Omenka, J. (2020). Adsorption Studies Of Silica Adsorbent Using Rice Husk As A Base Material For Metal Ions Removal From Aqueous Solution. American Journal Of Chemical Engineering, 8(2), 48. Https://Doi.Org/10.11648/J.Ajche.20200802.12

Naat, J. N., Neolaka, Y. A. B., Lapailaka, T., Rachmat Triandi, T., Sabarudin, A., Darmokoesoemo, H., & Kusuma, H. S. (2021). Adsorption Of Cu(II) And Pb(II) Using Silica Mercapto (HsM) Hybrid Adsorbent Synthesized From Silica Of Takari Sand: Optimization Of Parameters And Kinetics. Rasayan Journal Of Chemistry, 14(1), 550–560. Https://Doi.Org/10.31788/RJC.2021.1415803

Niizeki, T., Nagayama, S., Hasegawa, Y., Miyata, N., Sahara, M., & Akutsu, K. (2016). Structural Study Of Silica Coating Thin Layers Prepared From Perhydropolysilazane: Substrate Dependence And Water Penetration Structure. Coatings, 6(4), 64. Https://Doi.Org/10.3390/Coatings6040064

Onn, S., Hidayatul, N., Kamarudin, N., Azali, N. S., Adira Jaafar, J., Najiha Timmiati, S., & Setiabudi, H. D. (2020). Physical Coating Of Mesoporous Silica Nanoparticles With Poly (2-Vinyl Pyridine) And Polyvinylpyrrolidone For The Adsorption And Release Of 5-Fluorouracil. In Malaysian Journal Of Catalysis (Vol. 4).

Saravanan, S., Dubey, R. S., Saravanan, S., & Dubey, R. S. (2020). Synthesis Of Sio2 Nanoparticles By Sol-Gel Method And Their Optical And Structural Properties Fabrication Of Reflectors For Light Management Applications View Project Nanomaterials View Project Synthesis Of Sio 2 Nanoparticles By Sol-Gel Method And Their Optical And Structural Properties. In Romanian Journal Of Information Science And Technology (Vol. 23, Issue 1). Https://Www.Researchgate.Net/Publication/338828540

Shaiful Sajab, M., Hua Chia, C., Zakaria, S., & Sillanpää, M. (2014). Removal Of Organic Pollutants. In Bioresources (Vol. 9, Issue 3).

Suhono, R. S., Wahyuningtyas, E., & Ismiyati, T. (2019). Silica Coating Application On Heat-Cured Acrylic Resin Plates Towards The Surface Hardness And The Amount Of Residual Monomers. Padjadjaran Journal Of Dentistry, 31(2), 123. Https://Doi.Org/10.24198/Pjd.Vol31no2.19310

Suzaimi, N. D., Goh, P. S., Malek, N. A. N. N., Lim, J. W., & Ismail, A. F. (2019). Performance Of Branched Polyethyleneimine Grafted Porous Rice Husk Silica In Treating Nitrate-Rich Wastewater Via Adsorption. Journal Of Environmental Chemical Engineering, 7(4). Https://Doi.Org/10.1016/J.Jece.2019.103235

Tran, T. N., Pham, T. V. A., Le, M. L. P., Nguyen, T. P. T., & Tran, V. M. (2013). Synthesis Of Amorphous Silica And Sulfonic Acid Functionalized Silica Used As Reinforced Phase For Polymer Electrolyte Membrane. Advances In Natural Sciences: Nanoscience And Nanotechnology, 4(4). Https://Doi.Org/10.1088/2043-6262/4/4/045007

Yusmaniar, Purwanto, A., Putri, E. A., & Rosyidah, D. (2017). Adsorption Of Pb(Ii) Using Silica Gel Composite From Rice Husk Ash Modified 3-Aminopropyltriethoxysilane (Aptes)-Activated Carbon From Coconut Shell. Aip Conference Proceedings, 1823. Https://Doi.Org/10.1063/1.4978107

Zhu, Y., Chen, L., Zhang, C., & Guan, Z. (2018). Preparation of hydrophobic antireflective SiO 2 coating with deposition of PDMS from water-based SiO 2 -PEG sol. Applied Surface Science, 457, 522–528.



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Elkawnie: Journal of Islamic Science and Technology in 2022. Published by Faculty of Science and Technology in cooperation with Center for Research and Community Service (LP2M), UIN Ar-Raniry Banda Aceh, Aceh, Indonesia.

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