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All Journal Jurnal Sains dan Teknologi Nuklir Indonesia (Indonesian Journal of Nuclear Science and Technology) Prosiding Semnastek KOVALEN: Jurnal Riset Kimia Chimica et Natura Acta FLUIDA Indonesian Journal of Chemical Analysis (IJCA) J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Fullerene Journal of Chemistry Equilibrium Journal of Chemical Engineering REACTOR : Journal of Research On Chemistry And Engineering Industrial Research Workshop and National Seminar
Mentik Hulupi
Jurusan Teknik Kimia, Politeknik Negeri Bandung
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Other

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Sintesis Zn-BDC dengan Metode Sonokimia dan Aplikasinya Pada Proses Adsorpsi Ion Logam Pb2+ Abdilah, Fauzi; Hulupi, Mentik; Keryanti, Keryanti; Nabilah, Nida; Nabilah, Tiana Hasana
REACTOR: Journal of Research on Chemistry and Engineering Vol. 3 No. 1 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/

Abstract

The heavy metal ion pollution such as lead (Pb2+) in wastewater is an environmental problem that needs to be solved. The adsorption method has been reported to have good potential as an alternative method for reducing heavy metal contents in aquatic environment. The most widely used adsorbent media are porous materials with a large surface area and low density. Metal Organic Frameworks (MOFs) are a type of porous material that is widely applied in various fields, such as fuel purification, solvent recovery, gas storage, and adsorbents. Lead (II) is a heavy metal ion that can pollute the environment and endanger humans. This study aims to synthesize MOFs and apply it to the Pb2+ adsorption process. In this research, MOFs type Zn-BDC or MOF-5 were synthesized by sonochemistry method at 60 ℃ as adsorbent for Pb2+ ion. Characterization of the adsorbent by FTIR showed the presence of functional groups C=O, C-H, and Zn-O which indicated the formation of the MOF-5 compound. The concentrations of Pb2+ ions were analyzed using Atomic Absorption Spectrophotometer (AAS). The experimental results show the optimum conditions for the adsorption process at pH 5 for 60 minutes with adsorption efficiency reaching 93.41%. Testing the adsorption isotherm model showed that the Pb2+ ion adsorption process using Zn-BDC as an adsorbent followed the Langmuir isotherm model with the R2 value of 0.9986.
Formulasi dan Evaluasi Sabun Cair Pencuci Tangan melalui Pemanfaatan Ekstrak Etanol Kopi Robusta sebagai Antibakteri Abdulloh, Harris; Azzahra, Nasya; Abdulloh, Sudrajat Harris; Hulupi, Mentik
Prosiding Industrial Research Workshop and National Seminar Vol. 16 No. 1 (2025): Vol. 16 No. 1 (2025): Prosiding 16th Industrial Research Workshop and National
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/irwns.v16i1.6678

Abstract

Penularan bakteri melalui tangan merupakan salah satu jalur utama penyebaran penyakit, sehingga diperlukan inovasi sabun cuci tangan yang tidak hanya membersihkan, tetapi juga bersifat antibakteri. Penelitian ini bertujuan untuk memanfaatkan ekstrak etanol kopi robusta sebagai zat antibakteri pada formulasi sabun cuci tangan terhadap pertumbuhan bakteri Staphylococcus aureus dan Escherichia coli yang sering ditularkan melalui tangan. Sabun diformulasikan dengan penambahan konsentrasi ekstrak 0%, 2%, 4%, dan 6%. Parameter pengujian sediaan sabun meliputi uji berdasarkan SNI-2588-2017 yaitu uji pH, total bahan aktif, bahan tidak larut etanol, alkali bebas, serta tambahan uji viskositas, tinggi busa, stabilitas, dan uji antibakteri. Hasil menunjukkan formulasi sabun dengan penambahan ekstrak etanol kopi robusta belum memenuhi SNI-2588-2017 karena nilai alkali bebas dan bahan tidak larut etanol melebihi batas yang ditentukan. Tetapi ekstrak etanol kopi robusta pada sabun memberikan aktivitas antibakteri terhadap bakteri Staphylococcus aureus dan Escherichia coli dengan kategori kuat dengan aktivitas antibakteri terbaik pada konsentrasi 6%.
Ekstrak Etanol Daun Binahong (Anredera cordifolia) sebagai Zat Aktif Antibakteri terhadap Staphylococcus aureus dan Pseudomonas aeruginosa dalam Sabun Mandi Cair Utami, Naila Rahma; Ardiantina, Tiana; Abdulloh, Sudrajat Harris; Hulupi, Mentik
Prosiding Industrial Research Workshop and National Seminar Vol. 16 No. 1 (2025): Vol. 16 No. 1 (2025): Prosiding 16th Industrial Research Workshop and National
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/irwns.v16i1.6679

Abstract

Sediaan yang bermanfaat membersihkan tubuh dan mengandung berbagai senyawa yang berperan sebagai antibakteri, seperti flavonoid, tanin, dan saponin adalah sabun mandi cair ekstrak daun binahong. Penelitian bertujuan untuk memformulasikan, menganalisis pengaruh, dan menentukan konsentrasi optimum penambahan ekstrak daun binahong pada pembuatan sabun mandi cair. Variasi ekstrak daun binahong dibuat sebesar 4%, 8%, dan 12% menggunakan pelarut etanol 96%, rasio 1:10 (b/v), dan maserasi selama 3 × 24 jam. Uji antibakteri menggunakan metode cakram difusi agar yang menghasilkan zona hambat berturut turut 9,5 mm; 13 mm; dan 12 mm untuk S. aureus; serta 9 mm; 11,5 mm; dan 10 mm untuk P. aeruginosa. Karakterisasi sesuai dengan SNI 4085-2017, pH bernilai 8,0 – 8,9; alkali bebas 0,03 – 0,19%; dan total bahan aktif 24,39 – 35,32%. Uji organoleptik sampel berwarna hijau, kental, lembut, dan beraroma parfum sedikit aroma ekstrak. Viskositas bernilai 342 – 707,7 cPs; massa jenis bernilai 1,058 – 1,099 g/ml; dan stabilitas busa bernilai 36 – 53,5 mm. Penelitian membuktikan sabun mandi cair ekstrak daun binahong memberikan efek antibakteri dengan konsentrasi optimum penambahan esktrak 8% terhadap S. aureus dan P. aeruginosa. Sabun memenuhi syarat sediaan fisik dan SNI 4085-2017, tetapi pengujian viskositas penambahan ekstrak 8% serta pengujian alkali bebas penambahan esktrak 8% dan 12% tidak memenuhi standar.
Sintesis dan Karakterisasi SiO2@C dari Sekam Padi Sebagai Anoda Baterai Litium: - Suryadi, Joko; Andrijanto, Eko; Hulupi, Mentik; Salsabilla, Shafira; Hanifah, Hani
Fluida Vol. 18 No. 2 (2025): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v18i2.6560

Abstract

The rapid development of technology systems today has triggered a demand for battery development as energy storage. Utilizing the abundant biomass in Indonesia can meet commercial demands, one of which is rice husk. Rice husk is the protective layer that encases rice grains, containing holocellulose (55%), lignin (20%), SiO2 (20%), and minerals (5%), and has the potential to be used as a precursor for silica and carbon to create SiO2@C nanocomposites. In this study, SiO2@C composites were synthesized as lithium battery anode materials from rice husk using a calcination method and the addition of NaOH to form a porous morphology. The calcination process was carried out at 800℃ for 1 hour with a mass ratio of SP-C (Rice Husk Carbonization) and NaOH (1:1, 1:2, and 1:3). The synthesized SiO2@C composites exhibited a porous morphology within the mesopore size range of 13,94 nm at a 1:1 ratio and contained Si 2,42%, O 9,72%, and 87,86%. The mass ratio of NaOH addition can influence the surface area of the SiO2@C composites, with yields of 392,00 m2/g for 1:1 ratio, 1023,04 m2/g for the 1:2 ratio, and 1756,63 m2/g for the 1:3 ratio.
Sintesis Carbon Nanodots dari Molase Menggunakan Metode Pemanasan Terbantukan Gelombang Mikro Hulupi, Mentik; Nabilah, Nida; Nabilah, Tiana Hasna; Keryanti, Keryanti; Abdilah, Fauzi
Equilibrium Journal of Chemical Engineering Vol 6, No 1 (2022): Volume 6, No 1 July 2022
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v6i1.61212

Abstract

ABSTRAK. Carbon nanodots (CNDs) merupakan nanomaterial yang berukuran dibawah 10 nm. CNDs memiliki keunggulan diantaranya yaitu fotostabilitas tinggi, biokompatibilitas baik, toksisitas yang rendah, mudah dibuat, dan ramah lingkungan. Sumber karbon yang digunakan berasal dari molase karena murah dan mudah didapat serta merupakan hasil samping dari pengolahan tebu. Pada penelitian ini digunakan metode pemanasan terbantukan gelombang mikro atau Microwave Assisted Extraction (MAE) yang memberikan hasil suspensi yang homogen, pemanasan efisien, dan waktu yang singkat. Waktu iradiasi mempengaruhi energi gap CNDs dari molase yang dihasilkan. Waktu yang optimum untuk sintesis CNDs dari molase menggunakan metode MAE yaitu selama 3 menit. Efek fluoresensi telah diamati untuk suspensi CNDs yang mengubah warna kuning menjadi warna biru dibawah sinar UV 366 nm. Karakterisasi menggunakan spektrofotometri UV-Vis menunjukan serapan maksimum CNDs dari molase pada panjang gelombang 255 nm dengan energi gap sebesar 4,55 eV.Kata kunci: Carbon Nanodots, Microwave, MolaseABSTRACT. Carbon nanodots (CNDs) are nanomaterials with a size below 10 nm. CNDs have advantages such as high photostability, good biocompatibility, low toxicity, easy to manufacture, and environmentally friendly. The carbon source used comes from molasses because it is cheap and easy to obtain and is a by-product of sugarcane processing. In this study, the Microwave Assisted Extraction (MAE) method was used which gave homogeneous suspension results, efficient heating, and short time. The irradiation time affects the energy gap of the CNDs of the molasses produced. The optimum time for the synthesis of CNDs from molasses using the MAE method is 3 minutes. Fluorescence effects have been observed for suspensions of CNDs which turn yellow to blue under 366 nm UV light. Characterization using UV-Vis spectrophotometry showed the maximum absorption of CNDs from molasses at a wavelength of 255 nm with an energy gap of 4.55 eV.Keywords: Carbon Nanodots, Microwave, Molasses 
Validation of Methylene Blue Analysis Method in Wastewater Samples by UV-Vis Spectrophotometry Hulupi, Mentik; Keryanti, Keryanti; Rahmawati, Karina Aulia; Dewi, Widya Tresna; Abdilah, Fauzi
Equilibrium Journal of Chemical Engineering Vol 7, No 2 (2023): Volume 7, No 2 December 2023
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v7i2.75807

Abstract

Abstract. Methylene blue (MB) is an extensively utilized cationic dye in the textile industry. MB is, however, a highly noxious substance that can have detrimental effects on both the environment and human health. MB can pollute waterways and cause the mortality of aquatic organisms in the environment. Due to the hazards posed by MB, it is crucial to have an effective method for analyzing its concentration in wastewater. This will ensure that MB-contaminated water is appropriately treated and disposed of, thereby protecting the environment and human health. One of the analyses utilized the Evolution 360 UV-Vis Spectrophotometer to determine methylene blue concentrations. The Evolution 360 UV-Vis Spectrophotometer method was validated by measuring linearity tests, limit detection and quantization, precision, and accuracy. The R-value for linearity measurements is greater than 0.99, indicating that the method is proportionally validated. As required, the precision measurement yields acceptable results, with a %RSD value of less than 2%, and the accuracy measurement yields a recovery of 100% (between 80 and 110%). So that the method for measuring the concentration of methylene blue in water using the UV-Vis Evolution 360 Spectrophotometer satisfies the requirements for linearity, precision, and accuracy.Keywords:Analysis, Methylene Blue, Method Validation, Spectrophotometer
Co-Authors Abdilah, Fauzi Abdulloh, Harris Ade Suherman Andrijanto, Eko Ardiantina, Tiana Azzahra, Nasya Badra Sanditya Rattyananda Dessy Cartika Dewi, Widya Tresna Duyeh Setiawan Fauzi Abdilah Fauzi, Rafli Rizki Firdaus, Fachrel Muhammad Hanifah, Hani Haryadi, Haryadi Iswahyudi Iswahyudi Karina Aulia Rahmawati Keryanti, Keryanti Lili Indrawati Muhamad Basit Febrian Nabila Sofiyani Nabilah, Nida Nabilah, Tiana Hasana Nabilah, Tiana Hasna Nancy Siti Djenar Ngatin, Agustinus Nida Nabilah Rahmawati, Karina Aulia Retno Indarti Rinaldi, Kardian Riniati Rizka Amalia Nuriana Salsabilla, Shafira Shalihatunnisa Shalihatunnisa Siti Fauziah Sudrajat Harris Abdulloh Suryadi, Joko Tiana Hasna Nabilah Titin Sri Mulyati Troskialina, Lina Utami, Naila Rahma Widya Tresna Dewi Widyabudiningsih, Dewi Winda Putri Silpia Yusuf Sofyan