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All Journal JURNAL PENDIDIKAN TAMBUSAI JCRS (Journal of Community Research and Service) Jurnal Biogenerasi Indonesian Journal of Chemical Science and Technology Jurnal sains dan teknologi industri peternakan Jurnal Pendidikan, Sains dan Teknologi
Pulungan, Ahmad Shafwan
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Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Energy Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Social Sciences Other

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Adsorption of Soluble Ammonia Using A Porous Polymer Composite Cu-(TAC) And Activated Carbon Empty Fruit Palm Oil Zubir, Moondra; Jasmidi; Selly, Rini; Pulungan, Ahmad Shafwan; Miswanda, Dikki; Wardana, Novrizaldi; Rahmah, Siti; Faradilla, Putri; Ramadhan, Dwi Sapri
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 8 No. 2 (2025): JULY 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v8i2.68729

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 KA-Cu(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
Studi Kelayakan Etis Tentang Penggunaan Pestisida Kimia di UPT Pengembangan Benih Hortikultura Lestari, Dian Putri; Nasution, Putri Nurlela; Pulungan, Ahmad Shafwan; Situmorang, Nurbaity
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i1.26504

Abstract

Pertanian modern masih sangat bergantung pada penggunaan pestisida kimia untuk mengendalikan Organisme Pengganggu Tanaman (OPT). Meskipun efektif dalam meningkatkan hasil panen, penggunaan pestisida kimia yang tidak bijaksana menimbulkan dampak negatif terhadap lingkungan dan kesehatan manusia, seperti pencemaran tanah dan air, serta risiko gangguan kesehatan pada petani dan konsumen. Penelitian ini bertujuan untuk mengevaluasi kelayakan etis penggunaan pestisida kimia di UPT Pengembangan Benih Hortikultura serta mengeksplorasi alternatif pengendalian hama yang lebih ramah lingkungan. Metode yang digunakan adalah pendekatan kuantitatif deskriptif dengan eksperimen semu terhadap pestisida alami berbahan kulit bawang merah dan efektivitas eco enzyme dalam membersihkan residu pestisida. Hasil menunjukkan bahwa pestisida alami mampu menurunkan populasi hama hingga 70% dalam tujuh hari tanpa mencemari lingkungan atau menimbulkan resistensi. Dari perspektif bioetika, penggunaan pestisida alami lebih selaras dengan prinsip non-maleficence, beneficence, dan etika keberlanjutan. Oleh karena itu, penggunaan pestisida alami dapat menjadi solusi etis dan berkelanjutan bagi sektor pertanian.
PELATIHAN PENGEMBANGAN KEWIRAUSAHAAN DALAM RANGKA PENINGKATAN INCOME GENERATE DENGAN PEMBUATAN INSTALASI TANAMAN HIDROPONIK DI DHARMA WANITA BADAN PUSAT STATISTIK SERDANG BEDAGAI Damanik, Marini; Riris, Ida Duma; Nasution, Zuhairiah; Nasution, Marnida Yusfiani; Pulungan, Ahmad Shafwan; Dewi, Ratna Sari; ,, Serimawarni; Sitorus, Rosa Nadya Evelyn; Pratiwi, Meidy Citra; Safruddin, Muhammad Sultan; Saputra, Ardi Maulanna
Journal of Community Research and Service Vol. 8 No. 2: July 2024
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v8i2.62225

Abstract

Pemanfaatan lahan yang ada dimanfaatkan oleh Dharma Wanita dan Mitra Badan Pusat Statistik (BPS) Serdang Bedagai. Pemanfaatan lahan perlu disesuaikan dengan kebutuhan pangan semakin meningkat. Dengan begitu pemanfaatan lahan terutama lahan kosong maupun perkarangan rumah terus diupayakan untuk memenuhi kebutuhan pangan keluarga dan peningkatan perekonomian. Tim pengabdian masyarakat Universitas Negeri Medan mengupayakan sosialisasi terkait penanaman hidroponik berupa pakcoy dan selada air dengan beberapa tahap yaitu penyampaian materi terkait keunggulan dan manfaat tanaman hidroponik, praktek lapangan secara langsung mengenai penanaman tanaman hidroponik serta ternak lele untuk memanfaatkan saluran air di sekeliling BPS Serdang Bedagai. Alat berupa instalasi hidroponik serta bahan dasar yang dibutuhkan juga diberikan kepada mitra untuk pemanfaatan di perkarangan mitra serta keberlanjutan secara mandiri sehingga dapat meningkatkan perekonomian mitra.
Adsorption Equilibrium Properties of Zn(II) on Activated Carbon Composite of Derived Empty Palm Oil Fruit Bunches with Metal Organic Frameworks Cu(TAC) Jasmidi, Jasmidi; Zubir, Moondra; Selly, Rini; Pulungan, Ahmad Shafwan; Faradilla, Putri; Rahmah, Siti; Tanjung, Amar Lohot
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 7 No. 2 (2024): JULY 2024
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v7i2.62250

Abstract

This study aims to determine the adsorption equilibrium of the activated carbon of empty palm oil fruit bunches and KA-Cu(TAC) on Zn(II). Oil palm empty fruit bunches are used as a bio-sorbent in making carbon at a temperature of 5000 C, the resulting carbon is activated using H3PO4 and modified into a composite with metal organic frameworks of Cu metal and terephthalic acid. MOFs and KA-Cu(TAC) composites were produced by reflux method. Activated carbon, MOFS and KA-Cu(TAC) were characterized using XRD. The adsorption process of Zn(II) metal was analyzed using AAS and determined the optimum conditions with various concentrations to determine the adsorption equilibrium. XRD characterization results show that activated carbon has an amorphous structure, while MOFs Cu(TAC) and KA-Cu(TAC) have a crystalline structure. The optimum condition of activated carbon and KA-Cu(TAC) at a concentration of 180 ppm with the appropriate adsorption isotherm model is the Langmuir isotherm.
Synthesis and Characterization of Activated Carbon/Alginate-Fe Composites as Slow Release Fertilizer Panjaitan, Teguh Hidayat; Muchtar, Zainuddin; Rahmah, Siti; Zubir, Moondra; Pulungan, Ahmad Shafwan; Selly, Rini; Faradilla, Putri
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 7 No. 1 (2024): JANUARY 2024
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v7i1.62302

Abstract

Research on the slow release kinetics of Fe(III) ions from Activated Carbon/Alginate-Fe(III) composites or abbreviated as K/A-Fe(III) has been carried out. The aim of this research was to synthesize K/A-Fe(III) composite as a material that has the potential to become a slow release micronutrient fertilizer and to study the kinetics of slow release of Fe(III) ions from the composite. The K/A-Fe(III) composite was synthesized by mixing alginate suspension and activated carbon (alginate: activated carbon weight ratio = 1:3 and 3:1) until homogeneous. Composite grains were characterized using Fourier Transformed Infrared (FTIR) spectroscopy, the kinetics of Fe(III) release from the three composite variations found that KAlg31 composite showed more absorption and release of Fe ions than KAlg13.
Synthesis and Characterization of Activated Carbon/Alginate/Nanocellulose-Cu Composites Syahirah, Atikah Nur; Jasmidi, Jasmidi; Muchtar, Zainuddin; 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.v6i2.62303

Abstract

OPEFB is one source of natural fiber-based composites which have the potential to become activated carbon and nanocellulose. This study aims to synthesize and characterize the activated carbon/alginate/nanocellulose-Cu composite. The characterization used in this study is FTIR and PSA. The synthesis of activated carbon/alginate/nanocellulose-Cu composites began with a process of carbonization and activation with H3PO4 to produce Activated Carbon. Followed by a bleaching process with NaClO2 and a delignification process with Na2SO3 and NaOH to produce Nanocellulose. Alginate using commercial alginate. Furthermore, the three ingredients were mixed until homogeneous and put into a 0.1M CuSO4 solution to produce beads. The results of the characterization of characterization of PSA Nanocellulose obtained a particle size of 41.05 nm and the result of FTIR characterization on the activated carbon/alginate/nanocellulose-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, and β- glucosidic bonds between glucose units which indicate nanocellulose.
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.
Co-Authors ,, Serimawarni AA Sudharmawan, AA Cahyati, Riska Damanik, Marini Dikki Miswanda Faradilla, Putri Ginting, Elisabeth Cahyasa Gina Huda Panggabean, Nurul Ida Duma Riris Jasmidi Jasmidi Jasmidi Lestari, Dian Putri Lubis, Anita Agustina Muhammad Luthfi Nasution, Marnida Yusfiani Nasution, Putri Nurlela Novrizaldi Wardana Panjaitan, Teguh Hidayat Pratiwi, Meidy Citra Ramadhan, Dwi Sapri Ratna Sari Dewi Rini Selly, Rini Safruddin, Muhammad Sultan Saputra, Ardi Maulanna Sari, Marlinda Nilan Sari, Maya Novita Sembiring, Rinawati Siahaan, Eliza Sriyuliani Sinaga, Fahri Sitanggang, Sarina Sitorus, Rosa Nadya Evelyn Situmorang, Elisa Rauli Afrilia Situmorang, Nurbaity Sukma, Nurhaliza Syahirah, Atikah Nur Tanjung, Amar Lohot Triana, Rennyta Zainuddin Muchtar Zubir, Moondra Zuhairiah Nasution, Zuhairiah