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All Journal Reaktor JURNAL KIMIA SAINS DAN APLIKASI Indonesian Journal of Mathematics and Natural Sciences Jurnal Riset Kimia Indonesian Journal of Chemical Science Indonesian Journal of Chemistry Acta Chimica Asiana Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Greensphere: Journal of Environmental Chemistry Analit: Analytical and Environmental Chemistry Analit: Analytical And Environmental Chemistry
Retno Ariadi Lusiana
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Universitas Diponegoro, Jl. Prof. Soedarto, Tembalang Semarang 50275
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Mathematics

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Development and Characterization of a Chitosan and Polyvinyl Alcohol (CS/PVP)-Based Slow-Release Urea Fertilizer Membrane Retno Ariadi Lusiana; Khabibi Khabibi; Rahmad Nuryanto; Muhammad Ridho Shofwan Al Aziz
Jurnal Kimia Sains dan Aplikasi Vol 27, No 10 (2024): Volume 27 Issue 10 Year 2024
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.27.10.470-476

Abstract

A slow-release test of urea fertilizer was conducted using chitosan-urea (CS-U) and chitosan/polyvinyl pyrrolidone K30-urea (CS/PVP-U) membranes. The urea membrane synthesis involved a blending method, with PVP K30 added as a component. The slow-release capabilities of CS-U, CS/PVP1-U, CS/PVP2-U, CS/PVP3-U, and CS/PVP4-U membranes were compared. FTIR results showed an increased intensity of the primary NH double peak at 1587 cm-1 and 1640 cm-1, while the C=O spectrum shifted from 1640 to 1647 cm-1 and the -OH group from 3354 cm-1 to 3362 cm-1, indicating hydrogen bond formation in CS/PVP-U. XRD analysis confirmed the membrane’s amorphous structure, and FE-SEM and AFM studies revealed morphology and roughness differences, with CS/PVP4-U having the largest cross-sectional diameter. The release study showed that PVP-modified chitosan membranes increased urea release, achieving 60 ppm/2 days for the first 16 days, then decreasing to about 55 ppm through day 30, with partial urea release controlled over time. This suggests that SRF fertilizer can effectively control urea release into the environment.
Sintesis dan Karakterisasi Komposit Selulosa Bakteri dengan Grafit dan TiO2-ZnO: Structural and Functional Analysis Fariz Nafiir, Muhammad; Sudirman; Yuanita, Emmy; Arshad, Sazmal E.; Lusiana, Retno Ariadi; Ulfa, Maria
Acta Chimica Asiana Vol. 7 No. 2 (2024)
Publisher : The Indonesian Chemical Society, Chapter Nusa Tenggara and The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v7i2.204

Abstract

This research aims to synthesize and characterize a bacterial cellulose (BC)-based composite with graphite and TiO2-ZnO as reinforcement materials using ex-situ synthesis with CTAB as a surfactant. FTIR and SEM-EDS analysis revealed interactions between the matrix and the reinforcement materials, as well as irregular particle distribution in the BC/G-TiO2-ZnO composite. The addition of graphite to BC significantly increased the conductivity of the composite, while the addition of TiO2-ZnO had the opposite effect. The mechanical properties of the composite exhibited an inverse relationship with the conductivity parameter. Swelling tests indicated that pH and the addition of CTAB influenced the swelling behavior of the BC-based composite. The results of this study provide a strong foundation for the development of potential applications in the fields of electronics and pollutant filtration. The synthesis of this composite aims to harness the unique properties of BC, graphite, and TiO2-ZnO, creating a multifunctional material with potential uses in flexible electronics, sensors, biocompatible conductive materials, and advanced filtration systems.
Optimization of Chitosan-PEG/ZnO Hydrogel Formulation with Pomegranate Peel Extract as an Alternative for Wound Healing Assauqi, Niamul Faza; Lusiana, Retno Ariadi; Masruchin, Nanang
Indonesian Journal of Chemistry Vol 25, No 3 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.105215

Abstract

A chitosan-zinc oxide (ZnO)/poly(ethylene glycol) (PEG)/pomegranate peel extract (PE) based hydrogel has been developed as a potential material to accelerate the wound healing process by controlling the drug release mechanism. ZnO nanoparticles with an average size of about 95 nm were synthesized using the coprecipitation method and then combined into chitosan/PEG composites to improve the antimicrobial properties of the hydrogels. Characterization of the hydrogels included analysis of size, morphology, elemental composition, microstructure, swelling behavior, antibacterial activity, and wound healing effectiveness. The results of the in vitro study indicated that the antibacterial activity of PE-containing hydrogel against Escherichia coli and Staphylococcus aureus decreased due to the chelation effect caused by PE addition. However, in vivo tests for 10 d showed that the PE-containing hydrogel had better wound healing ability than commercial betadine. In addition, the developed hydrogel showed high biocompatibility with excellent antibacterial activity. This study confirmed that chitosan/PEG/ZnO nanoparticle hydrogel has the potential as wound dressing materials with sustained drug release and optimal healing effectiveness.
Pembuatan Eco-enzyme Berbasis Limbah Rumah Tangga pada Pondok Pesantren untuk Mencapai Sustainable Development Goals Christwardana, Marcelinus; Lusiana, Retno Ariadi; Suyati, Linda; Gunawan, Gunawan; Widodo, Didik Setiyo
Jurnal Pengabdian Kepada Masyarakat (JPKM) TABIKPUN Vol. 5 No. 3 (2024)
Publisher : Faculty of Mathematics and Natural Sciences - Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpkmt.v5i3.170

Abstract

Pondok pesantren memiliki karakteristik khusus dalam sistem pendidikan. Salah satu program tersebut adalah pelatihan wirausaha, yang bertujuan untuk membekali santri dengan keterampilan berwirausaha guna mendukung kemandirian mereka di masyarakat. Artikel ini membahas implementasi workshop pembuatan eco-enzyme di Pesantren Al-Mahbubiyah, Gamping Sleman, yang terbukti efektif dalam memberikan pengetahuan dan keterampilan kepada santri. Workshop ini memberikan pengalaman langsung kepada santri melalui praktek yang dipandu oleh fasilitator berpengalaman dan dilengkapi dengan sesi tutorial untuk memperkuat pemahaman mereka. Keseluruhan kegiatan ini berkontribusi positif dalam meningkatkan keterampilan santri dalam pembuatan eco-enzyme. Upaya ini diharapkan dapat meningkatkan kesadaran dan keterampilan dalam pengelolaan lingkungan, memberikan dampak signifikan bagi keberlanjutan lingkungan dan kesejahteraan masyarakat.
Pemanfaatan Lumpur Lapindo sebagai Sumber Silika Magnetik untuk Adsorpsi Tumpahan Crude Palm Oil Zuhara, Wihda; Nuryanto, Rahmad; Lusiana, Retno Ariadi; Efiyanti, Lisna
Jurnal Riset Kimia Vol. 15 No. 1 (2024): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v15i1.658

Abstract

In this paper, synthesis of silica magnetite adsorbent has been carried out from Lapindo Mud silica and magnetite (Fe3O4) using the template Cetyltrimethylammonium bromide (CTAB) through a microemulsion process. This research aims to determine the adsorption ability of magnetic silica material as an adsorbent for Crude Palm Oil (CPO) with varying contact times of 10, 20, 30, 60, 90 minutes and an adsorbate concentration of 0,2, 0,4, 0,6, 0,8 and 1 gram. Silica is obtained from Lapindo Mud extraction using the acid leaching method using HCl. Magnetite was prepared by mixing ferric chloride and ferrous chloride salts with an alkaline base. Synthesis of magnetic silica adsorbent using CTAB and 1-butanol as a surfactant and co-surfactant, respectively. The characterization results from FTIR and SEM-EDX data identified the presence of silanol (Si-OH) and Fe-O groups, magnetic silica adsorbent showed an irregular morphological pattern, the size tended to be heterogeneous, contained Fe, O and Si elements. The XRD results show that there are peaks in the (200), (311) and (440) planes, the GSA results show that the pore surface area is 37.048 m2/g, the total pore volume is 0.321 cm3/g and the pore diameter is 33.907 nm, which indicates that the pores have a mesoporous structure. Based on this research, the optimum contact time is 60 minutes with adsorption kinetics following the pseudo-second order and Langmuir isotherm with an adsorption capacity of 1.76 mg/g.
KARAKTERISASI FISIKOKIMIA BIOPLASTIK BERBAHAN DASAR KITOSAN TERTAUT SILANG ASAM SUKSINAT / PATI / POLY VINYL ALCOHOL Lusiana, Retno Ariadi; Suseno, Ahmad; Haris, Abdul; Sari, Nabila Iftinan
Analit : Analytical and Environmental Chemistry Vol. 6, No. 02 October (2021) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v6i2.2021.p145-155

Abstract

Bioplastik merupakan plastik yang dapat terdegradasi secara alamiah baik melalui serangan mikroorganisme maupun oleh cuaca. Lima series film tipis/bioplastik dibuat dari kitosan (CS). kitosan taut silang asam suksinat (CSSA), paduan CSSA dengan pati (CSSAP) dan paduan CSSAP-Poly Vinyl Alcohol (PVA) (CSSAPP). Penelitian dibagi dalam 3 tahapan utama yaitu penyiapan larutan CSSA, pembuatan bioplastik dan karakterisasi bioplastik meliputi uji: gugus fungsi (FTIR), berat dan ketebalan, kuat tarik, porositas, hidrofilisitas, pengembangan (swelling), ketahanan pH, dan biodegradabilitas. Dari data yang dihasilkan didapatkan bahwa semua bioplastik yang dihasilkan memiliki kenampakan bening kekuningan, transparan, tembus cahaya, tidak kaku dan tidak mudah patah, hal ini menunjukkan bahwa bioplastik bersifat cukup kuat. Selanjutnya dari hasil spektra FTIR, terbukti bahwa reaksi taut silang CSSA, reaksi paduan dengan pati dan PVA berhasil dilakukan, dengan munculnya serapan di daerah spesifik  seperti   O-H, N-H, C-H, C-O, N-O, dan C=O. Penambahan  pati dan PVA mempercepat proses biodegradasi dari 77 hari menjadi 10 hari. Kuat mekanik dan kelenturan bioplastik mengalami peningkatan.http://dx.doi.org/10.23960/aec.v6.i2.2021.p145-155
MEMBRAN KITOSAN-SITRAT SEBAGAI KATALIS HETEROGEN DALAM PRODUKSI BIODIESEL DARI MINYAK KELAPA Lusiana, Retno Ariadi; Widyastuti, Rahma Wahyu; Sasongko, Nurwarrohman Andre; Indra, Ayub; Suseno, Ahmad
Analit : Analytical and Environmental Chemistry Vol. 6, No. 01 April (2021) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v6i1.2021.p92-100

Abstract

Melalui reaksi taut silang antara kitosan dan asam sitrat, membran kitosan-asam sitrat (CC) disiapkan sebagai katalis heterogen dalam proses produksi biodiesel dari minyak kelapa sawit dan metanol. Sifat membran CC dianalisis secara fisikokimia dan menggunakan spektroskopi FTIR dan TGA. Berdasar data fisikokimia, didapatkan bahwa masuknya gugus TPP dalam rangka  kitosan berkorelasi dengan peningkatan porositas, hidrofilisitas, serapan air, dan fluks membran. Sisi katalitik dari membran CC pada proses produksi biodiesel dipelajari pada beberapa kondisi konversi. Didapatkan bahwa konversi minyak kelapa sawit mencapai 98,4% dengan kondisi waktu reaksi 75 menit, suhu 70 oC, rasio mol minyak/metanol 1:3 dan jumlah katalis sebesar 70 mg.http://dx.doi.org/10.23960/aec.v6.i1.2021.p92-100 
ADSORPSI METHYLENE BLUE (MB) MENGGUNAKAN ABU LAYANG BATUBARA TERAKTIVASI LARUTAN NaOH Dwijayanti, Umi; Gunawan, Gunawan; Widodo, Didik Setyo; Haris, Abdul; Suyati, Linda; Lusiana, Retno Ariadi
Analit : Analytical and Environmental Chemistry Vol. 5, No. 01 April (2020) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v5i1.2020.p1-14

Abstract

Penelitian tentang adsorpsi methylene blue (MB) oleh abu layang batubara teraktivasi NaOH telah dilakukan. Aktivasi abu layang dilakukan dengan menggunakan metode hidrotermal pada temperatur 80 oC selama 12 jam. Abu layang yang sudah teraktivasi dikarakterisasi menggunakan FTIR, dan studi adsorpsi dengan melakukan variasi pH, waktu kontak, dan konsentrasi adsorbat. Karakterisasi FTIR menunjukkan adanya silikat atau aluminat dari abu layang teraktivasi yang bertanggung jawab pada adsopsi MB yaitu vibrasi tekuk ikatan Si atau Al dengan O pada bilangan gelombang 420-500 cm-1. Abu layang teraktivasi dapat mengadsorpsi zat warna MB pada pH 7 dengan waktu kontak optimum 90 menit. Adsorpsi MB mengikuti pola isoterm Langmuir dan memiliki kapasitas adsorpsi sebesar 500 mg/g.http://dx.doi.org/10.23960/aec.v5.i1.2020.p01-14
STUDI SIFAT FISIKOKIMIA MEMBRAN KITOSAN TERMODIFIKASI HEPARIN DAN POLIETILEN GLIKOL (PEG) Lusiana, Retno Ariadi; Rusendi, Diana Pratiwi; Widodo, Didik Setiyo; Haris, Abdul; Suseno, Ahmad; Gunawan, Gunawan
Analit : Analytical and Environmental Chemistry Vol. 4, No. 02 October (2019) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v4i2.2019.p1-13

Abstract

Pembuatan material membran diarahkan agar menghasilkan membran dengan karakter sesuai seperti pori-pori kecil yang seragam, kuat secara mekanik, dan mempunyai ketahanan pada tekanan tinggi. Kitosan merupakan salah satu biopolimer yang dapat digunakan sebagai bahan membran. Penelitian ini mengembangkan membran berbasis kitosan dan menganalisis karakteristik fisiko-kimia dari membran. Keberhasilan reaksi modifikasi dianalisis dengan  FTIR dan karakteristik  fisika dianalisis melalui uji serapan air,  pengembangan air, porositas, ketahanan pH, dan hidrofilisitas. Spektra FTIR yang diperoleh menunjukkan bahwa modifikasi membran kitosan telah berhasil dilakukan. Modifikasi melalui pemaduan PEG dan reaksi cangkok dapat meningkatkan persentase serapan air, daya pengembangan, porositas, dan meningkatkan hidrofilisitas membran. Sementara, ketahanan membran pada berbagai kondisi pH, membran kitosan termodifikasi lebih tinggi dibanding membran kitosan.http://dx.doi.org/10.23960/aec.v4.i2.2019.p01-13
MEMBRAN KITOSAN TERMODIFIKASI TRIPOLIFOSFAT-HEPARIN DAN APLIKASINYA PADA PERMEASI UREA DAN KREATININ Lusiana, Retno Ariadi; Pranotoningtyas, Wahyu Putri
Analit : Analytical and Environmental Chemistry Vol. 3, No. 01 April (2018) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v3i1.2018.p

Abstract

Telah dilakukan penelitian mengenai pembuatan membran paduan dari kitosan taut silang tripolifosfat (TPP) tercangkok heparin dengan polivinil alkohol-poli etilen glikol (PVA-PEG) sebagai kandidat membran semipermiabel. Metode yang digunakan pada penelitian ini adalah metode inversi fasa. Membran yang dihasilkan dikarakterisasi secara kimia dan fisika meliputi: gugus fungsi, serapan air, kuat tarik, ketahanan pH, ketebalan, biodegradabilitas. Sifat permeatif membran dipelajari melalui uji kemampuan permeasi membran terhadap urea dan kreatinin. Hasil karakterisasi menunjukkan bahwa substitusi secara kimiawi berhasil dilaksanakan pada gugus amina kitosan. Modifikasi taut silang, cangkok dan campuran yang dilakukan terhadap kitosan meningkatkan kekuatan mekanik, kemampuan serapan air dan kemampuan permeasi terhadap urea dan kreatinin. Persentase permeasi meningkat 2-3 x dari permeasi membran kitosan tanpa modifikasi. Doi: http://dx.doi.org/10.23960/aec.v3.i1.2018.p11-21
Co-Authors Abdul Haris Abdul Haris Abdul Haris Agung Abadi Kiswandono Ahmad Suseno Alinda Megagita Nurratri Anggun Yuliani Anugrah Ricky Wijaya Arshad, Sazmal E. Assauqi, Niamul Faza Ayub Indra Ayub Indra Cahyaning Gesti Faradina Choiril Azmiyawati Diana Pratiwi Rusendi Didik Setiyo Widodo Didik Setyo Widodo Dilla Dayanti Dwi Siswanta Dwi Siswanta Dwijayanti, Umi Emmy Yuanita Fariz Nafiir, Muhammad Fathur Al Baani Fitra Nilla Sari Ginanjar Argo Pambudi Gunawan Gunawan Gunawan Gunawan Gunawan Gunawan Hasan Muhtar Ikhsan, Tauhid Nur Indra, Ayub Jumina Jumina khabibi Khabibi Linda Suyanti Linda Suyati Lisna Efiyanti M. Cholid Djunaidi Marcelinus Christwardana Maria Ulfa Mei Viantikasari Mohd Hafiz Dzarfan Othman Mohd Hafiz Dzarfan Othman Mudasir Mudasir Muh Jufri Muhamad Abduh Hasibuan Muhammad Cholid Djunaidi Muhammad Ridho Shofwan Al Aziz Nabila Iftinan Sari Nanang Masruchin Nanik Wijayanti Nor Basid Adiwibawa Prasetya Nor Basid Adiwibawa Prasetya Nurwarrohman Andre Sasongko Nurwarrohman Andre Sasongko Nurwarrohman Andre Sasongko Pardoyo Pardoyo Parsaoran Siahaan Parsaoran Siahaan Pranotoningtyas, Wahyu Putri Pratama J. Wibawa Rahma Wahyu Widyastuti Rahmad Nuryanto Rahmad Nuryanto Ratu Yulia Akhsanti Resa Putri Sherina Riska Nurfida Annisa Riska Nurfirda Annisa Rusendi, Diana Pratiwi Saputry, Agriccia Pangestica Sari, Nabila Iftinan Sasongko, Nurwarrohman Andre Shihandhanu Primadian Taqwa SRI ISDADIYANTO Sri Juari Santosa Sudirman Takashi Hayashita Umi Dwijayanti Vinsencius Guntur Pandu Marcellino Vivi Dia A. Sangkota Vivi Dia Ahmad Sangkota Wahyu Putri Pranotoningtyas Widodo, Didik Setyo Widyastuti, Rahma Wahyu Zuhara, Wihda