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All Journal CHEMISTRY PROGRESS Jurnal Natur Indonesia Techno: Jurnal Penelitian KOVALEN: Jurnal Riset Kimia IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Indonesia Chimica Acta Panrita Abdi - Jurnal Pengabdian pada Masyarakat Jurnal Progres Kimia Sains Al-Kimia Indonesian Journal of Chemistry Jurnal Ilmu Alam dan Lingkungan Chemistry Indonesian Journal of Chemical Research Fullerene Journal of Chemistry Indobiosains Automotive Experiences Jurnal Pengabdian Papua Makara Journal of Science INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Journal of Community Health Provision Molekul: Jurnal Ilmiah Kimia Rafflesia Journal of Natural and Applied Sciences (RJNAS)

Paulina Taba

Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Universitas Hasanuddin, Jl. Perintis Kemerdekaan Km 10, Tamalanrea, Makassar, 90245

Author-ID : 399951

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary Other

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Modifikasi Silika Mesopori MCM-48 dengan 3 Aminopropiltrimetoksisilan (3-APTMS) dan Uji Adsorpsivitasnya Terhadap Ion Pb2+ Andi Arwita Gau; Paulina Taba; Prastawa Budi
TECHNO: JURNAL PENELITIAN Vol 4, No 02 (2015): Techno Jurnal Penelitian
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tk.v4i02.337

Penelitian modifikasi silika mesopori MCM-48 menggunakan senyawa 3-APTMS telah dilakukan. Hasil modifikasi MCM-48-NH2 dapat digunakan sebagai adsorben untuk menyerap ion logam berat. Adsorpsi ion Pb2+ oleh MCM-48-NH2 dipelajari dengan variasi waktu, pH dan konsentrasi. Karakterisasi MCM-48 dan MCM-48-NH2 menggunakan Difraksi Sinar-X (XRD), FT-IR dan SEM. Isotermal Langmuir dan Freundlich digunakan untuk mempelajari isotermal adsorpsi ion Pb2+. Proses desorpsi dilakukan untuk menarik kembali ion Pb2+ dari MCM-48-NH2. Hasil penelitian menunjukkan bahwa waktu dan pH optimum untuk ion Pb2+ yaitu 60 menit dan pH 3. Adsorpsi ion Pb2+ mengikuti model isotermal Langmuir dan kapasitas adsorpsi ion Pb2+ oleh MCM-48-NH2 adalah 0,1261 mmol/g. Agen pendesorpsi yang sesuai untuk menarik kembali ion Pb2+ dari MCM-48-NH2adalah HCl.

Selectivity of the New Catalyst ZnO-MCM-48-CaO in Esterification of Calophyllum inophyllum Oil La Kolo; Firdaus Firdaus; Paulina Taba; Muhammad Zakir; Nunuk Hariani Soekamto
Automotive Experiences Vol 5 No 2 (2022)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.6711

The synthesis of MCM-48 containing surfactants (CTAB and Triton X-100), ZnO, and CaO aimed to find a potential heterogeneous catalyst in the esterification of Calophyllum inophyllum oil to biodiesel. This research is important in the production of biodiesel from vegetable oils with more than 2% free fatty acids (FFA), such as Calophyllum inophyllum oil using heterogeneous catalysts. Synthesis of heterogeneous catalysts, MCM-48 and ZnO-MCM-48-CaO (ZMC), using the hydrothermal method at various calcination temperatures was conducted to find the optimum calcination temperature for the reaction. The activity of the catalyst in the reaction was determined using acid-base titration methods and GC-MS. The MCM-48 catalyst calcined at 650 °C (MCM-48/650) had a catalytic activity of 35.74% and was selective for converting linoleic acid in Calophyllum inophyllum oil to biodiesel. In addition, this catalyst was also capable of cracking the compounds contained in Calophyllum inophyllum oil into suitable hydrocarbons for biodiesel. In the esterification of vegetable oils, four heterogeneous catalysts (MCM-48/550, ZMC/550, ZMC/650, and ZMC/750) had the potential to replace conventional catalysts (H2SO4), particularly in the generation of biodiesel from Calophyllum inophyllum oil.

NITROGEN, WATER AND BENZENE ADSORPTION IN MESOPOROUS CARBON (CMK-1) AND COMMERCIAL ACTIVATED CARBON (NORIT SX22) Paulina Taba
Indonesian Journal of Chemistry Vol 9, No 3 (2009)
Publisher : Universitas Gadjah Mada

Adsorption at various interfaces has attracted the attention of many scientists. This article discusses gas-solid and vapour-solid adsorption in CMK-1 and Norit SX22 using nitrogen, water and benzene as adsorbates. For comparison, MCM-48 used as template in synthesizing CMK-1 was also utilized as adsorbent. Results showed that the shape of nitrogen isotherm for CMK-1 is categorized as Type IV shape, whereas activated carbon (Norit SX2) has Type I shape with a hysteresis loop at P/P0 > 0.5, which is a H4 type of hysteresis. The shape of nitrogen isotherm for MCM-48 is categorized as Type IV shape with small hysteresis loop observed at P/P0 above 0.45, indicating that the larger pores are filled at high P/P0, which is typical of an H3 hysteresis loop The amount of nitrogen adsorbed in activated carbon at the high relative pressure is considerably smaller than that in CMK-1. The hydrophobicity feature of CMK-1 is the same as activated carbon (Norit SX2), but slightly different to the template MCM-48. The affinity of CMK-1 to benzene is considerably higher than activated carbon, suggesting the promising future of CMK-1 to be used as a selective adsorbent for the removal of organic compounds from water environment.

FTIR AND NMR STUDIES OF ADSORBED TRITON X-114 IN MCM-41 MATERIALS Paulina Taba
Indonesian Journal of Chemistry Vol 9, No 2 (2009)
Publisher : Universitas Gadjah Mada

One source of water pollutions is caused by the high use of surface-active agents (surfactants) by industries and households. As a consequence, it is required to remove such substances from the environment One of the important and widely used methods for removal of substances from solution is adsorption. In this research, MCM-41 and its modification MCM41-TMCS were used to adsorb nonionic surfactant, Triton X-114. FTIR and NMR methods were used to study the interaction between the surfactants and the adsorbents. MCM-41 was synthesized hydrothermally at 100 oC and its modification was conducted by silylation of MCM-41 with trimethylchloro silane (MCM41-TMCS). Both unmodified and modified MCM-41 can adsorb the surfactant. The amount adsorbed in the unmodified material is higher than that in the modified one. The interaction of Triton X-114 with MCM-41 was hydrogen bonding between the silanol groups in MCM-41 and hydroxyl groups of Triton X-114. For modified samples, Triton X-114 interacted with alkylsilyl groups mostly through hydrophobic interaction. It is more likely that the interaction was through C12, C13, C26 and C27 of Triton X-114.

FTIR AND NMR STUDIES OF ADSORBED CETHYLTRIMETHYLAMMONIUM CHLORIDE IN MCM-41 MATERIALS Paulina Taba; Russell F. Howe; Graine Moran
Indonesian Journal of Chemistry Vol 8, No 1 (2008)
Publisher : Universitas Gadjah Mada

The high use of surface-active agents (surfactants) by industry and households today leads to environmental pollution, therefore treatments are required to remove such substances from the environment. One of the important and widely used methods for removal of substances from solution is adsorption. In this research, MCM-41 and its modified product of MCM41-TMCS were used to adsorb cationic surfactants, cethyltrimethylammonium chloride, CTAC. FTIR and NMR methods were used to study the interaction between the surfactants and the adsorbents. MCM-41 was synthesized hydrothermally at 100 oC and its modification was conducted by silylation of MCM-41 with trimethylchloro silane (MCM41-TMCS). Both unmodified and modified MCM-41 can adsorb the surfactant. The interaction of CTAC with MCM-41 was mostly the electrostatic interaction between the electropositive end of the surfactant and MCM-41, whereas in modified MCM-41 hydrophobic interactions become more dominant. These hydrophobic interactions appear however to involve the methyl groups on the head group of the surfactant interacting with the modified surface.

Effect of Anodizing Time and Annealing Temperature on Photoelectrochemical Properties of Anodized TiO2 Nanotube for Corrosion Prevention Application Misriyani Misriyani; Abdul Wahid Wahab; Paulina Taba; Jarnuzi Gunlazuardi
Indonesian Journal of Chemistry Vol 17, No 2 (2017)
Publisher : Universitas Gadjah Mada

A study on the influence of anodizing time, annealing temperature and photoelectrochemical properties of TiO2 nanotube (TiO2 NT) has been investigated. The crystallinity was investigated using X-Ray Diffraction and the anti-corrosion performance of stainless steel 304 (SS 304) coupled with TiO2 NT was evaluated using electrochemical techniques under ultraviolet exposure. The optimum anodizing condition occurs at a voltage of 20 V for 3 h. After anodizing, the TiO2 NT amorf was calcined at 500 °C to obtain anatase crystalline phase. For the photoelectrochemical property, the effects of pH and NaCl concentration on corrosion prevention have been examined. The result showed that the corrosion rate of stainless steel 304 coupled with TiO2 NT can be reduced up to 1.7 times compared to the uncoupled stainless steel 304 (3.05×10-6 to 1.78×10-6 mpy) under ultraviolet exposure by shifted the photopotential to the more negative value (-0.302 V to -0.354 V) at a pH of 8 and 3% NaCl concentration (-0.264 V to -0.291 V). In conclusion, the TiO2 NT films, which was prepared by anodization and followed by annealing can prevent the corrosion of stainless steel 304.

Sintesis Nanopartikel Perak Menggunakan Ekstrak Daun Kluwak Pangium edule Reinw Sebagai Bioreduktor dan Uji Aktivitasnya Sebagai Antioksidan Indrawati Patabang; Syahruddin Kasim; Paulina Taba
Jurnal Ilmu Alam dan Lingkungan Vol. 10 No. 1 (2019): Jurnal Ilmu Alam dan Lingkungan
Publisher : Universitas Hasanuddin

Silver nanoparticles have been synthesized using kluwak leaf extract (Pangium edule Reinw) as bioreductor and antioxidant activity assay. The nanoparticles formed were monitored by observing UV-Vis absorption and characterized by using FTIR, PSA, XRD and SEM instruments. The result of functional group characterization with FTIR show that the functional groups OH, C = O, C-O and CH2 act as Ag+ reducing agent. The size of silver nanoparticles was determined by using Particle Size Analyzer (PSA) and the result show average particle size distribution of 93.2 nm. Morphology of AgNp were observed by Scanning Electron Microscope (SEM) and X-Ray Difraction (XRD) analysis show result of 51,78 nm. The antioxidant activity was shown by in kluwak leaf extract and silver nanoparticles with IC50 values respectively 831,33 ppm dan 1493,09 ppm.

Sintesis Selulosa Suksinat Melalui Reaksi Esterifikasi Asam Suksinat Miftahul Jannah; Ahyar Ahmad; Paulina Taba; Harningsih Karim
Jurnal Kimia Fullerene Vol 8 No 1 (2023): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v8i1.499

Cellulose is a biopolymer that is widely applied in various fields. Modification of cellulose is needed to increase the added value of cellulose. One of these cellulose derivatives is cellulose succinate. This study aims to synthesize succinic cellulose using succinic acid. This research covers the synthesis of cellulose succinate via esterification reaction with a variation of succinic acid (1.6%; 2.4%; 3.2% and 4.0%), DS determination by titration method, and characterization with FTIR. Based on the synthesis results, the optimum DS was obtained at 2.4% succinic acid (SS3) concentration, namely 0.692. The results of the characterization with FTIR also showed the presence of a C=O absorption band indicating the presence of cellulose succinate monoester.

PELATIHAN GURU DAN SISWA TENTANG PENGUKURAN EMISI GAS KARBON MONOKSIDA (CO) DAN NITROGEN OKSIDA (NOX) PADA KENDARAAN BERMOTOR Abdul Wahid Wahab; Nursiah La Nafie; Paulina Taba; Yusafir Hala; Maming; Abdul Karim; Andi Muhammad Anshar; Triana Febrianti; Nuritasari Azis
Panrita Abdi - Jurnal Pengabdian pada Masyarakat Vol. 7 No. 3 (2023): Jurnal Panrita Abdi - Juli 2023
Publisher : LP2M Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/pa.v7i3.22908

Maros Regency is a crossing area to the city of Makassar. So, transportation facilities to support mobility and community activities in several places to the city of Makassar must go through the town of Maros. Therefore, the number of vehicles that pass through the city of Maros will continue to increase from year to year, which will cause pollution or air pollution for the environment. To achieve beautiful environmental conditions, especially at the location of Senior High School 1 Maros, it is necessary to hold community service by introducing, applying, and utilizing the PEM-9004 tool on motorized vehicles, especially vehicles belonging to students at Senior High School 1 Maros. The test results show that the emission levels of carbon monoxide (CO) gas from students' vehicles are 1.791%, the levels of nitrogen oxides (NOx) and nitrogen monoxide (NO) are seven ppm each, and the gas temperature is 45°C with a test time of 1 minute. The CO concentration is still below the threshold set by the government in the Regulation of the State Minister for the Environment No. 05 of 2006, which is the concentration of CO gas emitted by motor vehicles with gasoline fuel at idle conditions of ≤5.5%. --- Kabupaten Maros adalah daerah perlintasan menuju kota Makkassar. Sehingga sarana transportasi untuk menunjang mobilitas dan aktivitas masyarakat di beberapa daerah menuju kota Makassar harus melalui kota Maros. Oleh karena itu, jumlah kendaraan yang melewati kota Maros akan terus meningkat dari tahun ke tahun yang akan menimbulkan pencemaran atau polusi udara bagi lingkungan. Untuk menghasilkan kondisi lingkungan yang asri khususnya di lokasi SMA Negeri 1 Maros maka perlu diadakan pengabdian masyarakat dengan cara pengenalan dan pengaplikasian serta pemanfaatan alat PEM-9004 pada kendaraan bermotor khususnya kendaraan milik siswa di SMA Negeri 1 Maros. Hasil pengujian menunjukkan bahwa kadar emisi gas karbon monoksida (CO) dari kendaraan milik siswa adalah 1,791 %, kadar nitrogen oksida (NOx) dan nitrogen monoksida (NO) adalah masing-masing 7 ppm dan temperatur gas 45°C dengan waktu pengujian 1 menit. Konsentrasi CO masih berada di bawah ambang batas yang ditetapkan oleh pemerintah di dalam Peraturan Menteri Negara Lingkungan Hidup No. 05 Tahun 2006 yaitu konsentrasi gas CO yang diemisikan oleh kendaraan bermotor dengan bahan bakar bensin pada kondisi idle ≤5,5%.

Analysis of total phenolics and flavonoids content from methanol extract of Caesalpinia bonduc (L.) Roxb. seeds and antioxidant activity assay Samriani Samriani; Hasnah Natsir; Seniwati Dali; Abdul Wahid Wahab; Nunuk Hariani Soekamto; Paulina Taba
RAFFLESIA JOURNAL OF NATURAL AND APPLIED SCIENCES Vol. 2 No. 2 (2022): Oktober
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rjna.v2i2.23929

Caesalpinia bonduc (L.) Roxb. seed is known as gorek seed contain secondary metabolites such as alkaloids, tannins, flavonoids, and phenolics, due to the content of these secondary metabolites so that this plant has antioxidant activity. This study aimed to determine total phenolic and flavonoid contents of methanol extract of gorek C. bonduc seeds as well as antioxidant activity. Extraction of gorek C. bonduc seeds was carried out with methanol, then quantitative determination of total phenolic by the Folin-Ciocalteu method as Gallic Acid Equivalent (GAE)/gram of extract, flavonoid content by AlCl3 method as Quercetin Equivalent (QE)/gram of extract, and in vitro antioxidant activity with DPPH (2,2-diphenyl-1-picrylhydrazyl) method was in IC50 (inhibition concentration). Based on the results of research, the phytochemical screening of methanol extract of gorek C. bonduc seeds showed alkaloids, flavonoids, saponins, tannins, and phenolics. The determination of the total phenolic and flavonoid content were obtained 0.55 ± 0.02 mgGAE/g and 0.50 ± 0.02 mgQE/g, respectively. The antioxidant activity of methanol extracts and ascorbic acid showed IC50 values were 3770.77 ppm and 3.36 ppm respectively.

Co-Authors Abd. Wahid Wahab Abdalrazaq, Eid Abdul Karim Abdul Karim Abdul Wahid Wahab Abdul Wahid Wahab Abubakar, Andi Nur Fitriani Ahmad Fudhail Majid Ahmad Zaini Ahyar Ahmad Alfian Noor Alfian Noor Amin, Ida Ifdaliah Andi Arwita Gau Andi Muhammad Anshar Andi Suciati Andi Yanti Puspita Sari Anita Anita Arfah, Rugaiyah A. Arfiani Nur Astuti, Emmi Azis, Hijrah A. Burhanuddinnur, Muhammad Djabal Nur Basir Djasmawati Mahmud Emma Suryati Fadliah, Fadliah Fatahu, Fatahu Fausan Sullahi Firdaus Firdaus Firdaus Firdaus Firdaus, Firdaus Gappa, Maming Ghanima Yasmaniar Graine Moran Harningsih Karim Harningsih Karim Hasnah Natsir Hasnah Natsir Hasri Hasri Hazirin Zubair Hazirin Zubair, Hazirin Husla, Ridha I Wayan Sutapa Indah Raya Indah Raya Indrawati Patabang Irfandi, Rizal Jarnuzi Gunlazuardi Kasturiasih, Ni Putu Khairunnur, Siti Kollur, Shivaa Prasad Kolo, La La Kalamu, La Yusran La Kolo La Kolo Lestari, Novi Malimongan M Maming Maming Gaffar, Maming Maming Maming Miftahul Jannah Miftahul Jannah Misriyani Misriyani Misriyani Misriyani Muh. Bachri Amran Muhammad Burhannudinnur Muhammad Qaddafi Muhammad Zakir Muhammad Zakir Munadi, Rachmin Musa, Bulkis Nunuk Hariani Soekamto Nunuk Soekamto Nur Afni Nur Haedar NURAENI, ANDI Nuritasari Azis Nurmala Sari Nursiah La Nafie Nursiah La Nafie Nursiah La Nafie Nursiah La Nafie Nursiah La Nafie Parmitha, Nadya Yuli Permatasari, Nur Umriani Prastawa Budi Prastawa Budi Putri, Tri Widayati Ramadani, Ananda Rapi, Prayiska Mariana Ridwan, Irham Pratama Rino R. Mukti Romi Anto Rosalinda Zeniona Maarebia Ruslan Ruslan Russell F. Howe S, Giovanno Alvin Saefuddin ., Saefuddin Sahidin . Sahriani Ali Samriani Samriani Sari, Andi Y.P. Sarlan, Sarlan Seniwati Dali Seniwati Dali Sernita, Sernita SITI HALIMAH LAREKENG, SITI HALIMAH Sopiarini, Putri St. Fauziah St. Fauziah Subandrio Sulistiani Jarre Suriati Eka Putri Syaharuddin Kasim Syahruddin Kasim Syamsiar, Syamsiar Syarifuddin Liong Syarifuddin Liong Ta'bi, Widi Aprilia Tahril Tanasal A.M Tjodi Harlim Triana Febrianti Wahid Wahab, Abdul Widayati Putri, Tri Yasser, M Yusafir Hala Zahra, Audrey Zarlina ., Zarlina

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