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All Journal JURNAL PENDIDIKAN TAMBUSAI Indonesian Journal of Chemical Science and Technology Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Journal of Education And Research
Faradilla, Putri
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Health Professions Materials Science & Nanotechnology Social Sciences

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Adsorption of Heavy Metal Cu(II) in Wastewater Using Adsorbents from Empty Oil Palm Bunches Fitri, Indah; Nasution, Hafni Indriati; Jasmidi, Jasmidi; Zubir, Moondra; Rahmah, Siti; Selly, Rini; Faradilla, Putri
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 6 No. 2 (2023): JULY 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v6i2.62304

Abstract

Heavy metal pollution has increased with increasing industrialization. To overcome this contamination, carried out by using the adsorption method. The adsorbents used are activated carbon and porous polymer composite carbon Cu(TAC). in liquid waste, one of which is Cu metal. This is evidenced by the existence of data showing the efficiency of activated carbon and porous polymer composite carbon Cu(TAC) above 90%. In addition, activated carbon and porous polymer composite carbon Cu(TAC) have an adsorption isotherm equation that is suitable for Cu(II) adsorption is the Langmuir isotherm with linear regression values of 0.9045 and 0.8912.
Synthesis of Cu-(TAC) Composite with Oil Palm Empty Fruit Bunch Waste Activated Carbon Through the Adsorption Mechanism of βCarotene Sari, Lidia Mutia; Jasmidi, Jasmidi; Nasution, Hafni Indriati; Zubir, Moondra; Rahmah, Siti; Selly, Rini; Faradilla, Putri
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 6 No. 2 (2023): JULY 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v6i2.62305

Abstract

This study aims to determine the adsorption and desorption abilities of activated carbon and Cu-(TAC) composites in the β-carotene adsorption process on Crude Palm Oil (CPO). Oil Palm Empty Fruit Bunches (EFB) are used as activated carbon and modified with MOFs Cu-(TAC). Activated carbon and Cu-(TAC) composites were characterized by XRD, SEM-EDX, and BET. The concentration of β-carotene absorbed during the adsorption process was analyzed using a UV-Vis spectrophotometer. The variations used to determine the optimum conditions for absorption of β-carotene were the mass variation of the adsorbent and the variation in the contact time between the adsorbent and adsorbate. The results of the characterization of activated carbon showed a sharp absorption in the presence of O-H, C-H and C-O groups indicating the presence of cellulose. Activated carbon is amorphous and the Cu-(TAC) composite has a crystal structure and its pore size is mesoporous. The optimum conditions for the use of activated carbon for β-carotene adsorption were the mass variation of 8 grams with 0.495 ppm of β-carotene and contact time at 120 minutes with 2.605 ppm of β-carotene. The optimum condition of the Cu-(TAC) composite in the β-carotene adsorption process was at 4 gram mass variation with 1.026 ppm β-carotene content and optimum contact time at 60 minutes with 6.384 ppm β-carotene content. The ability of desorption can be seen from the percentage of desorption showing activated carbon in the 150th minute with 96.252% while in the Cu-(TAC) composite in the 30th minute with 88.188%.
Synthesis and Characterization of Activated Carbon/Alginate-Cu Composites Sari, Maya Novita; Muchtar, Zainuddin; Jasmidi, Jasmidi; Rahmah, Siti; Pulungan, Ahmad Shafwan; Zubir, Moondra; Selly, Rini; Faradilla, Putri
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 6 No. 2 (2023): JULY 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v6i2.62306

Abstract

OPEFB is one source of natural fiber-based composites which have the potential to become activated carbon. This study aims to synthesize and characterize the activated carbon/alginate -Cu composite. The characterization used in this study is FTIR. The results of this study The synthesis of activated carbon/alginate -Cu composites began with a process of carbonization and activation with H3PO4 to produce Activated Carbon. Alginate using commercial alginate. Furthermore, the three ingredients were mixed until homogeneous and put into a 0.1M CuSO4 solution to produce beads. The characterization of FTIR characterization on the activated carbon/alginate-Cu composite contained the functional group OH group, triple C bond from stretching alkyne, C=C aromatic group, C-H alkane group, C-O group , the P=O stretching vibration of the P-O-C group and the alcohol OH group expressing the active carbon; there are functional groups of hydroxyl (OH), carboxyl, carbonyl, and C-O-C and “COOH bonds which represent alginate and there are OH functional groups, stretching C-H bonds, C-O stretching, stretching C-C. The KALg Cu13 sample had a peak at a wavelength of 2838.79 Cm-1 Where the four samples show the presence of C≡N groups
Synthesis And Characterization of Activated Carbon/Alginate/Nanocellulose-Fe Composite as Slow Release Fertilizer Cahyati, Riska; Syahirah, Atikah nur; Rahmah, Siti; Muchtar, Zainuddin; Jasmidi, Jasmidi; Pulungan, Ahmad Shafwan; Zubir, Moondra; Selly, Rini; Faradilla, Putri
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 6 No. 2 (2023): JULY 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v6i2.62307

Abstract

Fe deficiency in plants results in yellowing of leaves on plants and also reduces the quality of fruit produced. Fe deficiency in plants can be treated by applying slow release fertilizer which will release the nutrients in the fertilizer slowly according to plant needs so that there will be no problem of deficiency or excess of Fe. Activated Carbon/Alginate/Nanocellulose-Fe Composite can be used as slow release fertilizer because this composite releases Fe slowly with citric acid medium and tested with AAS. The functional groups in the Activated Carbon/Alginate/Nanocellulose-Fe Composite showed no disappearance of the functional groups belonging to activated carbon, alginate or nanocellulose so that it can be said that these three components were successfully made into composites and can be carriers of nutrients in micro-fertilizers.
Adsorption of Soluble Ammoniac Using A Porous Polymer Composite Cu-(TAC) And Activated Carbon Empty Fruit Palm Oil Maulina, Rissah; Selly, Rini; Nasution, Hafni Indriati; Jasmidi, Jasmidi; Zubir, Moondra; Rahmah, Siti; Faradilla, Putri
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 6 No. 2 (2023): JULY 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v6i2.62308

Abstract

This study aims to determine the stages in the process of making activated carbon, synthesis of porous polymer composites Cu(TAC) and activated carbon composites (KA-Cu(TAC) for adsorption of dissolved ammonia (NH4OH). To know the characterization results of activated carbon and KA- Cu(TAC), as well as knowing the optimum mass, concentration, and contact time of activated carbon KA-Cu(TAC) for the adsorption of dissolved ammonia. The research stages started from Empty Oil Palm Bunches (EFB) used as biosorbents for carbon production at 500oC. The resulting product was activated with H3PO4, then modified with porous polymer Cu(TAC) to make a composite. The KA-Cu(TAC) composite was synthesized by reflux method. Then MOFs, activated carbon and KACu(TAC) composite were characterized by BET. The BET characterization results showed that the successfully synthesized KA-Cu(TAC) composite experienced an increase in surface area.In the NH4OH adsorption process the optimum mass efficiency on activated carbon still increased at 8 grams while the KA-Cu(TAC) composite obtained an efficiency of 36, 6% and optimally at a mass of 4 g. At variations in concentration, the efficiency of the two samples still decreased. And the optimum time efficiency obtained in the NH4OH adsorption process with activated carbon was 70% and the KA-Cu(TAC) composite was 86.6%, both samples were equally optimal at 75 minutes.
Pengolahan Limbah Rumah Tangga Menjadi Pupuk Cair di Desa Karang Anyar Kecamatan Secanggang Kabupaten Langkat Nasution, Zuhairiah; Faradilla, Putri; Dalimunthe, Makharany; Sihombing, Junifa Layla
Jurnal Pengabdian Kepada Masyarakat (JPKM) TABIKPUN Vol. 6 No. 3 (2025)
Publisher : Faculty of Mathematics and Natural Sciences - Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpkmt.v6i3.230

Abstract

Program Pengabdian kepada Masyarakat (PKM) ini bertujuan untuk meningkatkan wawasan mitra, yaitu warga Desa Karang Anyar, terkait pengelolaan limbah organik rumah tangga. Limbah diolah menjadi produk yang bermanfaat dan mitra dilatih keterampilannya dalam pembuatan pupuk organik cair. Metode pelaksanaan kegiatan PKM ini adalah sosialisasi berupa edukasi tentang pengelolaan dan pemanfaatan limbah rumah tangga menjadi pupuk organik cair serta praktek langsung pembuatan pupuk organik cair. Berdasarkan penilaian yang dilakukan terhadap jawaban pre-test dan post-test yang diberikan kepada kelompok mitra, diketahui bahwa  kegiatan ini meningkatkan pengetahuan kelompok mitra pada aspek wawasan tentang tata cara mengelola limbah rumah tangga dengan baik sebesar 82,3% dan pengetahuan tentang pengolahan limbah rumah tangga menjadi pupuk organik cair meningkat sebesar 70,8%.
ANALISA KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS XI MIPA SMA WIDYA DARMA PADA MATERI TRANSFORMASI Faradilla, Putri; Adibah, Fanny; Sari, Ira Wulan
Journal of Education and Research Vol. 4 No. 2 (2025): DESEMBER 2025
Publisher : IKIP Widya Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56707/jedarr.v4i2.314

Abstract

Penelitian ini bertujuan untuk menganalisis kemampuan pemecahan masalah matematis siswa kelas XI MIPA SMA Widya Darma pada materi transformasi. Penelitian ini menggunakan metode kualitatif deskriptif dengan pendekatan studi kasus, dengan subjek penelitian terdiri dari 12 siswa kelas XI MIPA SMA Widya Darma Surabaya pada tahun ajaran 2023/2024. Data dikumpulkan melalui observasi dan wawancara. Hasil penelitian menunjukkan bahwa kemampuan pemecahan masalah matematis siswa pada materi transformasi berada pada tingkat sedang, dengan nilai rata-rata tes mencapai 85,7 yang termasuk dalam kategori B (Baik) menurut Kriteria Ketuntasan Minimal (KKM). Setelah adanya inovasi dalam pembelajaran yang menyenangkan, siswa menunjukkan peningkatan minat belajar matematika. Inovasi tersebut didukung oleh metode pengajaran yang tepat serta fasilitas pembelajaran yang memadai, yang memberikan kenyamanan baik bagi siswa maupun guru. Penelitian ini memberikan gambaran tentang pentingnya pendekatan yang menyenangkan dalam pembelajaran untuk meningkatkan kemampuan pemecahan masalah dan minat belajar matematika siswa.
Co-Authors AA Sudharmawan, AA Adibah, Fanny Ayi Darmana, Ayi Br Manik, Trivena Myta Cahyati, Riska Dalimunthe, Makharany Dikki Miswanda Fitri, Indah Jasmidi Jasmidi Jasmidi Junifa Layla Sihombing, Junifa Layla Kamilah, Kamilah Karimah, Fithriyyah Khairahma Khairahmi Maulina, Rissah Muhammad Luthfi Mutiara Agustina Nst Nasution, Hafni Indriati Nasution, Haqqi Annazili Nasution, Mhd. Sholeh Kurniawan Novrizaldi Wardana Nugroho, Arfito Panjaitan, Teguh Hidayat Pulungan, Ahmad Shafwan Ramadhan, Dwi Sapri Rini Selly, Rini Sari, Dwy Puspita Sari, Ira Wulan Sari, Lidia Mutia Sari, Maya Novita Sembiring, Rinawati Syahirah, Atikah Nur Tanjung, Amar Lohot Zainuddin Muchtar Zubir, Moondra Zuhairiah Nasution, Zuhairiah