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Sintesis dan Karakterisasi Poly (Anthranilic Acid-Co-Formaldehyde) untuk Adsorpsi Ion Pb(II) Kartika, Siska Ela; Amran, Muhammad Bachri
ALCHEMY Vol 9, No 1 (2021): ALCHEMY: Journal of Chemistry
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/al.v9i1.11476

Abstract

 Besides having a positive impact, rapid industrial development also gives a negative impact in the form of industrial waste causing environmental pollution. Lead is one of the heavy metal ions that become a primary indicator of pollution according to the United States Environmental Protection Agency (US EPA). The determination of lead directly in environmental samples is often difficult because of the very low concentration of metal ions and the matrix interferences. Therefore, preconcentration techniques that can simplify the matrix are required. Ionic exchange resins, functionalized chelating resins, and ion imprinted polymers are mostly used to preconcentrate the trace elements. Poly (anthranilic acid-co-formaldehyde) is polymer synthesized by mixing anthranilic acid, formaldehyde, and HCl. The poly (anthranilic acid-co-formaldehyde) was characterized by FTIR and SEM analysis. Characterization results indicate that polymerization reaction has been formed indicated by the vibration of the CH2 bridge. Poly (anthranilic acid-co-formaldehyde) has a relatively smooth surface with pores. The batch method was applied. The maximum adsorption for Pb(II) ions was 16.37 mg/g at pH 5 with a contact time of 10 minutes. Keywords: poly (anthranilic acid-co-formaldehyde), adsorption, lead Selain memberikan dampak positif, perkembangan industri yang pesat juga dapat memberikan dampak negatif berupa limbah industri penyebab pencemaran lingkungan. Timbal merupakan salah satu ion logam berat yang menjadi indikator primer pencemaran menurut United States Environmental Protection Agency (US EPA). Penentuan konsentrasi timbal secara langsung dalam sampel lingkungan seringkali sulit dilakukan karena terdapat pada konsentrasi renik dengan matriks yang rumit. Oleh karena itu, teknik prakonsentrasi yang dapat menyederhanakan matriks sangat diperlukan. Resin penukar ion, resin pengkhelat, dan ion imprinted polymers banyak digunakan untuk prakonsentrasi unsur renik. Poly (anthranilic acid-co-formaldehyde) merupakan polimer yang disintesis dengan cara mencampurkan asam anthranilat, formaldehida, dan HCl. Karakterisasi poly (anthranilic acid-co-formaldehyde) telah dilakukan menggunakan FTIR dan SEM. Hasil karakterisasi mengindikasikan bahwa reaksi polimerisasi telah terbentuk yang ditunjukkan dengan adanya vibrasi CH2 bridge. Poly (anthranilic acid-co-formaldehyde) memiliki morfologi permukaan yang relatif halus dan berpori. Metode yang digunakan untuk mempelajari kemampuan adsorpsi adalah metode batch. Kapasitas adsorpsi poly (anthranilic acid-co-formaldehyde) terhadap ion Pb(II) adalah 16,37 mg/g pada pH 5 dengan waktu kontak 10 menit. Kata kunci: poly (anthranilic acid-co-formaldehyde), adsorpsi, timbal
Edukasi Zat Aditif Makanan Berbahaya dan Analisa Boraks Menggunakan Kunyit Di Tlogomas, Lowokwaru, Malang Khoiroh, Lilik Miftahul; Kartika, Siskaela; Hanapi, Ahmad
Jurnal Surya Vol 6 No 1 (2024): Mei
Publisher : Universitas Muhammadiyah Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37150/jsu.v6i1.3035

Abstract

Borax is a hazardous chemical that is often used as a food additive, although its use has been banned in many countries, including Indonesia. Consumption of borax can cause cancer, kidney failure, liver disorders, reproductive system disorders, central nervous system disorders, and immune system disorders. Irresponsible manufacturers often add borax to meatballs, noodles, tofu, and crackers to make them chewier and last longer. Turmeric contains curcumin, which functions to break down the borax bond into boric acid and bind it into a reddish-brown rosocyanin chelate complex. The purpose of this community service program is to provide education about hazardous food additives, the characteristics of foods containing borax, the impact of borax consumption on health, and training on how to analyze borax using turmeric in Tlogomas, Lowokwaru, Malang. Education is carried out using lecture methods, discussions, demonstrations, and training on analyzing borax. It has been proven that this activity can increase participants' knowledge and skills in identifying borax in food by up to 92%.
Edukasi Zat Aditif Makanan Berbahaya dan Analisa Boraks Menggunakan Kunyit Di Tlogomas, Lowokwaru, Malang Khoiroh, Lilik Miftahul; Kartika, Siskaela; Hanapi, Ahmad
Jurnal Surya Vol 6 No 1 (2024): Jurnal Pengabdian Kepada Masyarakat Surya Universitas Muhammadiyah Sukabumi (UMMI
Publisher : Universitas Muhammadiyah Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37150/jsu.v6i1.3035

Abstract

Borax is a hazardous chemical that is often used as a food additive, although its use has been banned in many countries, including Indonesia. Consumption of borax can cause cancer, kidney failure, liver disorders, reproductive system disorders, central nervous system disorders, and immune system disorders. Irresponsible manufacturers often add borax to meatballs, noodles, tofu, and crackers to make them chewier and last longer. Turmeric contains curcumin, which functions to break down the borax bond into boric acid and bind it into a reddish-brown rosocyanin chelate complex. The purpose of this community service program is to provide education about hazardous food additives, the characteristics of foods containing borax, the impact of borax consumption on health, and training on how to analyze borax using turmeric in Tlogomas, Lowokwaru, Malang. Education is carried out using lecture methods, discussions, demonstrations, and training on analyzing borax. It has been proven that this activity can increase participants' knowledge and skills in identifying borax in food by up to 92%.
Synthesis of Bi4Ti3O12/Alga for Ciprofloxacin Degradation Prasetyo, Anton; Adi, Tri Kustono; Kartika, Siska Ela; Faturrohmi, Fauziah; Khanif, Juwita
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol. 12 No. 1 (2025): June 2025
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v12i1.42256

Abstract

Antibiotic waste has become a serious issue for ecosystems, and one method that offers great potential to address this problem is photocatalysis. To enhance the photocatalytic activity, one approach is to impregnate the photocatalytic compound onto a supporting material and become composite material. In this study, Bi4Ti3O12/Algae (Spinossum cottonii, Euchema spinossum, and Sargassum sp) composite compounds were synthesized with various algae, including Sargassum and Spinosa. The diffractogram and IR spectra data indicate that the composite compounds were successfully synthesized. The photocatalytic activity test results demonstrate good potential for the Bi4Ti3O12/Euchema spinossum composite in the degradation of ciprofloxacin, as it was able to degrade 30% of ciprofloxacin within 60 minutes.
Synthesis and Characterization of Nickel(II) Imprinted Polymers as a Selective Adsorbent for Nickel(II) Ions Kartika, Siska Ela; Hariyanto, Putri Septiani; Madjid, Armeida D. R.; Siboro, Sonita Afrita Purba; Sujarwadi, Roni
Jurnal Kimia Sains dan Aplikasi Vol 28, No 6 (2025): Volume 28 Issue 6 Year 2025
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.28.6.307-315

Abstract

The rapid expansion of nickel mining in Indonesia, driven by the growing demand for electric vehicle batteries, has raised concerns about the environmental and health impacts of nickel pollution. This study presents the synthesis and characterization of a highly selective adsorbent, Nickel(II) Imprinted Polymer (Ni(II)-IPs), for the monitoring and removal of Ni(II) ions. Ni(II)-IPs were synthesized using precipitation polymerization by imprinting the Ni(II)-8-hydroxyquinoline complex into a polymer matrix through the polymerization of methacrylic acid and ethylene glycol dimethacrylate. Successful imprinting and subsequent leaching of Ni(II) ions using HNO3 were confirmed by FTIR, SEM, and EDX characterization. Adsorption studies revealed that Ni(II)-IPs exhibit a high adsorption capacity of 70.26 mg/g at pH 7 within a short contact time of 15 minutes. Moreover, Ni(II)-IPs demonstrated excellent selectivity towards Ni(II) ions in the presence of competing ions, with relative selectivity coefficients of 1.20, 1.24, and 1.31 for Ni(II)/Cu(II), Ni(II)/Co(II), and Ni(II)/Pb(II), respectively. These findings highlight the potential of Ni(II)-IPs as an efficient and selective adsorbent for monitoring and removing Ni(II) ions from complex aqueous matrices, thereby addressing growing concerns about nickel pollution in Indonesia and beyond.