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Pengaruh Penambahan Variasi KJ-CTAB Terhadap Karakteristik ZnO/KJ-CTAB yang Disintesis Menggunakan Metode Impregnasi Basah: Effect of Adding KJ-CTAB Variations Towards Characteristics of Synthesized ZnO/KJ-CTAB Using Wet Impregation Method Azzalina Nur Alviana; Aulia Dewi Rosanti; Rizky Arief Shobirin; Fahmi Hidayat
KOVALEN: Jurnal Riset Kimia Vol. 9 No. 1 (2023): April Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2023.v9.i1.16036

Semiconductor photocatalysts have great potential in solving environmental problems. The photocatalyst process using a semiconductor is one of the technology to oxidize organic compounds such as dyes. Orange peel (KJ) is one of the adsorbents that have the potential for purification of dyes that increase the photocatalytic activity of ZnO material. This study aims to determine the optimum variation of KJ-CTAB to be added to ZnO material. The results of the synthesis of ZnO/KJ-CTAB varasis 1:25, 2:25, and 3:25 (w/v) using the wet impregnation method were characterized on IR, XRD, SEM, DR-UV, and BET instruments. The results showed that FTIR also showed the presence of ZnO bonds in all samples, C-H in samples varied from 1:25, 2:25, and 3:25 (w/v). The XRD results showed that the percentage of crystallinity decreased and the SEM results showed that ZnO/KJ-CTAB 1:25 had a more homogeneous morphology. Based on the results of DR-UV ZnO/KJ-CTAB 1: 25 (w/v) has a band gap energy value of 3.20 eV which is good for use in photocatalyst processes. BET results show that all samples belong to the mesoporous size.

Seed priming application to increase sorghum vigor and viability of Sorghum bicolor Retno Dwi Andayani; Aulia Dewi Rosanti
Agrovigor Vol 16, No 1 (2023)
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrovigor.v16i1.12995

Sorghum is one of developed plants for food diversification because it caontains nutrients and has the potential to be an alternative crop. This is also supported by the advantages of sorghum such as adaptive, drought tolerant, salinity tolerant, wide adaptabiliti and lower water requirements for season compared to other commodities. Behind its advantages, soghum has low vigor and viability. Low vigor and viability cause low growth simultaneously. The uneven growth of sorghum makes fertilizer application and harvesting more difficult. It also increases labor costs because maintenance and harvesting cannot be done at the sam time. This can be overcome by seed priming. The purpose of seed priming is to increase the germination rate, percentage of gemination, simultaneity of growth and germination speed. This research was conducted in a controlled temperature room using a factorial randomized block design. First factor is 3 sorghum varieties and the second factor is kind of solvent (Water, Hot water, KNO3, and Ascorbic acid). The result showed that there was an interaction between sorghum varieties and kind of solvent. KNO3 gives optimal results in all sorghum varieties compared to other ingredients.

The Effect of Variations in Calcination Temperature on the Character of ZnO and ZnO/Mopl-CTAB in Degrading Methyl Orange Aulia Dewi Rosanti; Fahmi Hidayat; Yuly Kusumawati; Arif Fadlan; Rizky Arief Shobirin; Fanni Kurnia Wijaya
Bulletin of Chemical Reaction Engineering & Catalysis 2023: BCREC Volume 18 Issue 2 Year 2023 (July 2023, Issue in Progress)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.18305

Medan orange peel (Mopl), which has been modified using cetyltrimethylammonium bromide (CTAB), has the potential to adsorb methyl orange (MO), and thus it can be used as a supporting material for ZnO. The ZnO is a photocatalytic material that is environmentally friendly, inexpensive, non-toxic, and has a wide band gap value. This study aims to determine the effect of calcination temperature on ZnO and ZnO characteristics due to modification using Mopl-CTAB and its effect on the degradation of MO. This research was carried out by synthesizing ZnO and ZnO/Mopl-CTAB materials using impregnation method and varying the calcination temperatures at 150, 250, 350, and 450 °C. The solid material powder obtained was characterized by using Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX), Brunauer–Emmett–Teller (BET), Fourier Transform Infra Red (FTIR), X-ray Diffraction (XRD), and Diffuse Reflectance Spectroscopy (DRS). Based on the results of the characterization, greater calcination temperature can affect the characteristics of the photocatalyst, including its morphology, functional groups, crystal structure, crystal lattice, crystallinity, surface area, pore size, pore volume, and energy band gap. The MO photodegradation activity test using the synthesized material was conducted under dark and light conditions. The results of the test revealed that the best or optimum material to be used in degrading MO is a calcined material at 450 °C under light conditions. ZnO material using Mopl-CTAB is better in degrading ZnO/Mopl-CTAB 450 °C than ZnO 450 °C. This study found that ZnO material using Mopl-CTAB had a percent removal of 78% in 50 min, while ZnO 450 °C only had a percent removal of 53% in 40 min. The reaction kinetics in dark and light conditions follow the pseudo-second-order kinetic model. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

STUDI FOTODEGRADASI METILEN BIRU OLEH ZnO/KULIT JERUK DENGAN PENYINARAN LAMPU UV-LED Eva Umi Latifah; Aulia Dewi Rosanti; Fahmi Hidayat
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Vol 11 No 1 (2023): Cakra Kimia (Indonesian E-Journal of Applied Chemistry)
Publisher : Graduate Program of Applied Chemistry, Udayana University, Bali-INDONESIA

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ABSTRAK: Penelitian ini bertujuan untuk mengkaji pengaruh variasi waktu kontak terhadap persentase fotodegradasi metilen biru menggunakan sampel ZnO dan ZnO/Kulit Jeruk (KJ) serta mengkaji model kinetika adsorpsi yang sesuai untuk menggambarkan proses adsorpsi yang terjadi. Material ZnO dan ZnO/KJ disintesis menggunakan metode impregnasi basah dan aktivitas fotokatalitik diamati dibawah Sinar UV LED (365 nm) dengan variasi waktu kontak 0 - 120 menit. Sampel ZnO dan ZnO/KJ dikarakterisasi dengan FTIR, SEM, XRD, DR-UV, dan BET. Kinetika adsorpsi dianalisa menggunakan model orde satu semu dan orde dua semu. Hasil penelitian menunjukkan bahwa presentase degradasi meningkat seiring dengan peningkatan waktu penyinaran. Nilai presentase degradasi terbaik untuk penghilangan metilen biru adalah material ZnO/KJ dengan presentase degradasi terbaik sebesar 67 % pada mode gelap dan 94 % pada mode terang. Sedangkan ZnO hanya mampu mendegradai metilen biru sebesar 46 % pada mode gelap dan 74 % pada mode terang. Berdasarkan data laju adsorpsi menunjukkan bahwa proses adsorpsi ZnO dan ZnO/KJ mengikuti model orde dua semu sehingga dapat disimpulkan bahwa proses adsorpsi yang terjadi melibatkan proses adsorpsi kimia. . ABSTRACT : This study aims to examine the effect of contact time variations on photodegradation percentage of methylene blue using ZnO and ZnO/KJ (orange peel) catalysts as well as to examine the adsorption kinetic models that suitable to describe the adsorption process occured. The ZnO/KJ catalysts was synthesized using the wet impregnation method and the photocatalytic activity was observed under UV LED light (365 nm) with a contact time variation of 0 - 120 minutes. The ZnO and ZnO/KJ catalysts were characterized by FTIR, SEM, XRD, DR-UV, and BET. The adsorption kinetics were obtained using pseudo-first-order and pseudo-second-order models. The results showed that the degradation percentage increased with increasing irradiation time. The highest degradation percentage values of methylene blue using ZnO/KJ catalyst are of 67% in dark mode and of 94% in light mode, respectively. Meanwhile, the ZnO was only able to degrade methylene blue by 46% in dark mode and 74% in light mode. Based on the adsorption rate data, the adsorption process of ZnO and ZnO/KJ follows a pseudo-second order model, so it can be concluded that the adsorption process occured involves a chemisorption process

The Effect of Variations in Calcination Temperature on the Character of ZnO and ZnO/Mopl-CTAB in Degrading Methyl Orange Aulia Dewi Rosanti; Fahmi Hidayat; Yuly Kusumawati; Arif Fadlan; Rizky Arief Shobirin; Fanni Kurnia Wijaya
Bulletin of Chemical Reaction Engineering & Catalysis 2023: BCREC Volume 18 Issue 2 Year 2023 (August 2023)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.18305

Medan orange peel (Mopl), which has been modified using cetyltrimethylammonium bromide (CTAB), has the potential to adsorb methyl orange (MO), and thus it can be used as a supporting material for ZnO. The ZnO is a photocatalytic material that is environmentally friendly, inexpensive, non-toxic, and has a wide band gap value. This study aims to determine the effect of calcination temperature on ZnO and ZnO characteristics due to modification using Mopl-CTAB and its effect on the degradation of MO. This research was carried out by synthesizing ZnO and ZnO/Mopl-CTAB materials using impregnation method and varying the calcination temperatures at 150, 250, 350, and 450 °C. The solid material powder obtained was characterized by using Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX), Brunauer–Emmett–Teller (BET), Fourier Transform Infra Red (FTIR), X-ray Diffraction (XRD), and Diffuse Reflectance Spectroscopy (DRS). Based on the results of the characterization, greater calcination temperature can affect the characteristics of the photocatalyst, including its morphology, functional groups, crystal structure, crystal lattice, crystallinity, surface area, pore size, pore volume, and energy band gap. The MO photodegradation activity test using the synthesized material was conducted under dark and light conditions. The results of the test revealed that the best or optimum material to be used in degrading MO is a calcined material at 450 °C under light conditions. ZnO material using Mopl-CTAB is better in degrading ZnO/Mopl-CTAB 450 °C than ZnO 450 °C. This study found that ZnO material using Mopl-CTAB had a percent removal of 78% in 50 min, while ZnO 450 °C only had a percent removal of 53% in 40 min. The reaction kinetics in dark and light conditions follow the pseudo-second-order kinetic model. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Pelatihan Pengolahan Komoditas Utama Berupa Susu Sapi Menjadi Hand and Body Lotion di Desa Pagerwojo Kabupaten Tulungagung Hidayat, Fahmi; Fitria, Faizatul; Rosanti, Aulia Dewi; Sa’diyah, Asvikatus; Annisa, Ayu
Cendekia : Jurnal Pengabdian Masyarakat Vol 6 No 2 (2024): Desember
Publisher : LPPM UNIVERSITAS ISLAM KADIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32503/cendekia.v6i2.5784

Pagerwojo adalah desa yang mayoritas penduduknya adalah peternak sapi perah. Susu sapi yang dihasilkan selama ini hanya bisa dijual ke koperasi di desa. Tidak ada penduduk desa yang mengubah susu sapi mereka menjadi produk susu sapi. Pemanfaatan susu sapi sebagai bahan baku body lotion sangat jarang dilakukan, oleh karena itu pada kegiatan pengabdian masyarakat ini dilakukan pengolahan susu sapi menjadi produk lain yaitu body lotion. Upaya filantropi ini bertujuan untuk meningkatkan pemahaman warga desa Pagerwojo tentang pengolahan susu sapi menjadi kosmetik, khususnya body lotion. Selain itu, kegiatan ini diproyeksikan dapat meningkatkan potensi kewirausahaan desa, sehingga meningkatkan situasi ekonomi warga. Tim juga mengajarkan kepada warga desa Pagerwojo cara menggunakan susu sapi sebagai bahan baku kosmetik seperti krim body lotion. Selain itu dengan kegiatan ini diharapkan dapat mengembangkan potensi desa di bidang wirausaha untuk meningkatkan perekonomian warga. Secara keseluruhan, warga merespon positif program ini. Ada juga antisipasi bahwa kegiatan ini akan terus berlanjut dan berkembang menjadi aset tambahan, berpotensi menciptakan lapangan kerja baru di desa.

STUDY OF THE INFLUENCE OF VARIATIONS IN CATALYST MASS ON THE DEGRADATION OF METHYL ORANGE DYES BY ZnO/KJ-CTAB UNDER UV-LED ILLUMINATION: STUDI PENGARUH VARIASI MASSA KATALIS PADA DEGRADASI ZAT WARNA METIL JINGGA OLEH ZnO/KJ-CTAB DI BAWAH PENYINARAN LAMPU UV-LED Anggraeni, Herlina Agusyanti; Rosanti, Aulia Dewi; Hidayat, Fahmi
SPIN JURNAL KIMIA & PENDIDIKAN KIMIA Vol. 6 No. 1 (2024): Januari - Juni 2024
Publisher : UIN Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/spin.v6i1.7344

Berkembangnya industri tekstil menyebabkan penggunaan zat warna semakin meningkat. Salah satu zat warna yang digunakan adalah metil jingga. Tujuan dari penelitian ini untuk mempelajari pengaruh massa katalis ZnO/Kulit Jeruk(KJ)-CTAB, mempelajari degradasi metil jingga (MJ), dan mempelajari isoterm adsorpsi. Penelitian ini menggunakan ZnO dan ZnO/KJ-CTAB yang dikarakterisasi dengan FTIR (Fourier Transform Infra-Red), XRD (X-Ray Diffractometer), BET (Brunauer-Emmett-Teller surface area), SEM (Spectroscopy Scanning Elektron Microscopy), dan DR-UV (Diffuse Reflectance-UV). Berdasarkan hasil penelitian, ZnO dan ZnO/KJ-CTAB termasuk struktur mesopori. Berdasarkan pengaruh vasiasi massa katalis yang dilakukan 2 perlakuan mode gelap dan mode terang, diketahui bahwa proses degradasi metil jingga dengan waktu optimum 30 menit dan konsentrasi 8 mg/L yang terbaik adalah ZnO/KJ-CTAB MT pada massa katalis 2 mg/ L dengan diperoleh penyisihan 93,85%, sedangkan untuk ZnO mode terang memperoleh removal 49%. Adsorpsi metil jingga oleh ZnO dan ZnO/KJ-CTAB mengikuti isoterm adsorpsi Langmuir, artinya proses degradasi pada metil jingga oleh ZnO dan ZnO/KJ-CTAB muncul pada situs permukaan yang homogen, sedangkan tidak ada interaksi antara molekul adsorbat dan molekul yang berdekatan.

FORMULASI HAND AND BODY LOTION BERBASIS EKSTRAK JAMUR LINGZHI (GANODERMA LUCIDUM) SEBAGAI SEDIAAN FOTOPROTEKTIF Hidayat, Fahmi; Rosanti, Aulia Dewi; Sa’diyah, Asvikatu
Jurnal Buana Farma Vol. 4 No. 4 (2024): Jurnal Buana Farma : Jurnal Ilmiah Farmasi
Publisher : Fakultas Farmasi Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jbf.v4i4.1222

Ultraviolet (UV) radiation can induce various health problems, particularly on the skin as the body's protective organ. This study aimed to enhance skin protection against free radical damage by utilizing the antioxidant potential of lingzhi mushroom (Ganoderma lucidum) extract. Through the formulation of hand and body lotion, various concentrations of lingzhi mushroom extract (0%, 0.25%, 0.50%, and 0.75%) were incorporated. In vitro testing was conducted to measure the Sun Protection Factor (SPF) value as an indicator of the product's ability to protect the skin from ultraviolet radiation. The results showed an increase in SPF value with increasing concentrations of lingzhi mushroom extract. The formulation with 0.75% lingzhi mushroom extract yielded the highest SPF value of 4.4. These findings indicate that lingzhi mushroom extract has the potential to be an active ingredient in skincare products, not only providing hydration but also offering optimal protection against free radical damage and UV radiation.

RESPON PERTUMBUHAN VEGETATIF DAN GENERATIF TANAMAN PADI (Oryza Sativa L.) VARIETAS MENTIK WANGI TERHADAP KONSENTRASI PUPUK NANOSILIKA SEKAM PADI DAN JARAK TANAM Sani, Muhammad Yulius; Rosanti, Aulia Dewi; Fitriyah, Nur; Soenyoto, Edy; Helilusiatiningsih, Nunuk
Fruitset Sains : Jurnal Pertanian Agroteknologi Vol. 12 No. 5 (2024): December: Ilmu Pertanian dan Bidang Terkait
Publisher : Institute of Computer Science (IOCS)

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Tanaman padi (Oryza sativa L.) tergolong komoditas tanaman pangan yang sangat penting bagi seluruh manusia di dunia pada umumnya khususnya Indonesia. Hal ini dikarenakan, beras yang merupakan hasil pengolahan dari padi adalah bahan pangan utama. Mengingat semakin banyaknya permintaan produksi beras sehingga perlu dilakukan langkah alternatif untuk meningkatkan pertumbuhan tanaman Padi yaitu salah satunya adalah menggunakan teknologi nano. Penggunaan Si yang mempunyai ukuran nano (10-9 m) diharapkan akan mudah diserap oleh tanaman daripada silika dengan ukuran yang lebih besar. Demikian juga dengan pengaturan jarak tanam merupakan salah satu upaya yang dapat menghindari terjadinya tumpang tindih diantara tajuk tanaman, memberikan ruang bagi perkembangan akar dan meningkatkan efisiensi penggunaan benih. Penelitian ini bertujuan untuk mengetahuli pengaruh pemberian Silika dalam ukuran nano dan jarak tanam terhadap pertumbuhan tanaman padi. Penelitian ini menggunakan Rancangan Acak Kelompok ( RAK ) Faktorial dengan dua faktor. Faktor pertama adalah Konsentrasi pupuk nano dan faktor kedua adalah jarak tanam. Berdasarkan hasil penelitian diketahui bahwa terjadi interaksi antara perlakuan konsentrasi nano silika dan jarak tanam pada variabel pengamatan : tinggi tanaman umur 20 hst pada perlakuan K3J2 ( konsentrasi nano 60 ppm + jarak tanam 25x25 cm). Pada perlakuan tunggal konsentrasi nano silika pada semua perlakuan menunjukkan hasil yang tidak nyata. Pada perlakuan tunggal jarak tanam 20x20 cm menunjukan pengaruh nyata pada pengamatan laju pertumhuhan umur 30 hst yaitu sebesar 0.0064 dan pada pengamatan jumlah malai jarak tanam 30x30cm menunjukkan pengaruh nyata dengan hasil 18.99 malai.

PHYSICAL STABILITY TESTING OF HAND AND BODY LOTION FORMULATIONS WITH LINGZHI MUSHROOM EXTRACT Hidayat, Fahmi; Sa'diyah, Asvitus; Rosanti, Aulia Dewi
Molluca Journal of Chemistry Education (MJoCE) Vol 15 No 1 (2025): MJoCe
Publisher : Program Studi Pendidikan Kimia, FKIP, Universitas Pattimura (Chemistry Education Study Program, Faculty of Teacher Training and Educational Sciences, Pattimura University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol15iss1pp41-48

This study aims to evaluate the physical stability of hand and body lotion formulations containing Lingzhi mushroom (Ganoderma lucidum) extract at various concentrations (0%, 0.25%, 0.50%, and 0.75%). The extract was obtained through maceration using 96% ethanol and incorporated as an active ingredient in lotion formulations. Physical stability parameters assessed over a 28-day storage period included organoleptic characteristics, homogeneity, pH, spreadability, and skin irritation. Results indicated that all lotion formulations exhibited good homogeneity, pH values within the acceptable range (4.95–5.68), and spreadability within standard criteria (5.72–6.27 cm). No skin irritation effects were reported among respondents. The 0.50% extract concentration received the highest user preference in terms of color and aroma. Overall, the study concludes that Lingzhi mushroom extract can be effectively used as a stable, safe, and consumer-acceptable active ingredient in natural skin care product formulations.

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