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All Journal Reaktor JURNAL KIMIA SAINS DAN APLIKASI Chem Info Indonesian Journal of Chemical Science ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry JKPK (Jurnal Kimia dan Pendidikan Kimia) Greensphere: Journal of Environmental Chemistry Molekul: Jurnal Ilmiah Kimia
khabibi Khabibi
Chemistry Departement Of Science And Mathematic Faculty Diponegoro University Jl. Prof. Soedarto, SH., Jurusan Kimia Fakultas Sains Dan Matematika Universitas Diponegoro, Tembalang Semarang
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology

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Sintesis Membran Kitosan Tertaut Silang Tripolifosfat dengan Paduan Polivinil Alkohol untuk Permeasi Kreatinin Ikhsan, Tauhid Nur; Khabibi, Khabibi; Lusiana, Retno Ariadi
Greensphere: Journal of Environmental Chemistry Vol 4, No 1 (2024): Volume 4 Issue 1 Tahun 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gjec.2024.21044

Abstract

Penelitian tentang modifikasi kitosan menggunakan taut silang natrium tripolifosfat (NaTPP) dengan paduan polivinil alkohol (PVA) telah dilakukan. Tujuan penelitian ini adalah memperoleh membran kitosan tertaut silang TPP dengan paduan PVA dan mengkarakterisasinya kemudian mengaplikasikannya untuk uji permeasi terhadap kreatinin. Penelitian ini dilakukan dalam beberapa tahap yaitu sintesis membran kitosan termodifikasi NaTPP dan PVA, karakterisasi membran dan aplikasi membran untuk permeasi kreatinin. Penelitian diawali dengan membuat larutan kitosan (Cs), kitosan-PVA (CsP) dan kitosan termodifikasi NaTPP dengan variasi mol kitosan:NaTPP yaitu CsPT1 (1:30), CsPT2 (1:20) dan CsPT3 (1:10), kemudian mencetaknya menjadi membran. Tahap berikutnya, mengkarakterisasi membran meliputi uji FTIR untuk mengidentifikasi gugus fungsi, uji morfologi permukaan menggunakan SEM, uji serap air, daya pengembangan, porositas, hidrofilisitas, kuat tarik dan uji permeasi terhadap kreatinin. Keberhasilan sintesis membran kitosan tertaut silang NaTPP dengan paduan PVA dibuktikan dengan adanya pergeseran bilangan gelombang dari 3280 ke 3251 cm-1 yang menunjukkan adanya interaksi antara gugus O-H dan -NH2 dari kitosan, PO- dari TPP dan -OH dari PVA. Hasil karakterisasi fisik membran termodifikasi pada pengukuran berat dan ketebalan membran, uji serapan air, porositas dan hidrofilisitas meningkat seiring peningkatan kadar NaTPP, sedangkan pada uji kuat tarik dan pengembangan mengalami penurunan. Membran terbaik pada permeasi kreatinin adalah membran CsPT3 dengan kenaikan persentase transpor kreatinin sebesar 33,17% dari membran kitosan awal. 
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.
Synthesis of Printed Hollow Fiber Membranes Urea as a Membrane Candidate Hemodialysis Djunaidi, Muhammad Cholid; Ayuningrum, Denandha Putri; Maharani, Nesti Dwi; Khabibi, Khabibi; Pardoyo, Pardoyo; Raharjo, Yanuardi; Susanto, Heru; Filardli, Abdullah Malik Islam
Indonesian Journal of Chemistry Vol 24, No 6 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.83068

Abstract

Chronic kidney failure is a disease that affects the world's population and an alternative solution is hemodialysis. Hemodialysis is the process of cleaning the blood from urea and creatinine through a semi-permeable membrane in the form of a hollow fiber membrane (HFM) with the following advantages: flexible and low energy requirements. The weaknesses of commercial hemodialysis membranes are that they are hydrophobic, chemical resistant, and low biocompatibility. This research uses a membrane of polysulfone combined with eugenol and polyethylene glycol (PEG) or polyethylene glycol diglycidyl ether (PEGDE). Eugenol has allyl, hydroxy, and methoxy groups which are derived from polyeugenol via allyl groups and from polyeugenol to polyeugenoxy acetic acid via hydroxyl groups. The resulting molecularly imprinted membrane (MIM) in the form of hollow fiber has better porosity, absorption, flux values and is highly selective in transport, with the order of selectivity, namely urea > creatinine > vitamin B12.
Analisis Kandungan Logam berat Timbal (Pb) dan Merkuri (Hg) Dalam limbah Menggunakan reaksi Kation dan Spektrofotometri Serapan Atom (SSA) Hadid, Mhd Annajmi Al; Khabibi, Khabibi; Srihapsari, Dwita
Greensphere: Journal of Environmental Chemistry Vol 4, No 2 (2024): Vol 4, No 2(2024)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gjec.2024.27310

Abstract

Pencemaran logam berat, seperti timbal (Pb) dan merkuri (Hg) menjadi isu lingkungan serius di Indonesia yang berdampak pada kesehatan manusia dan ekosistem. Limbah logam berat ini umumnya berasal dari sisa pengolahan industri dan aktivitas manusia lainnya. Penelitian ini bertujuan untuk menentukan tingkat pencemaran Pb dan Hg dalam sampel air menggunakan metode kualitatif (reaksi kation) dan kuantitatif (Spektrofotometri Serapan Atom-Nyala/SSA-Nyala), serta memvalidasi metode analisisnya. Validasi metode meliputi penentuan linearitas, presisi, limit deteksi, dan limit kuantifikasi. Sampel air yang dianalisis berasal dari aliran limbah rumah tangga dan tidak digunakan untuk konsumsi. Dua sampel dilabeli sebagai sampel A dan B. Analisis kualitatif menunjukkan sampel tidak mengandung logam berat. Analisis kuantitatif dengan SSA-Nyala menghasilkan nilai koefisien determinasi yang baik pada kurva standar larutan Pb dan Hg sebesar 0,9998 dan 0,9999 serta diperoleh persamaan garis. Dari persamaan garis ini ditentukan konsentrasi masing-masing logam, yang mana konsentrasi Pb sebesar 6,301 ppm pada sampel air A dan 43,843 ppm pada sampel air B, serta konsentrasi Hg sebesar 1,55 ppm dan 0,859 ppm pada sampel yang sama. Nilai presisi, diukur sebagai % Relative Percentage Different (RPD) untuk Pb adalah 8,841% dan 2,745% serta untuk Hg sebesar 18,323% dan 5,55%. Limit deteksi dan kuantifikasi Pb adalah 1,125 ppm dan 3,75 ppm, sedangkan untuk Hg adalah 0,0327 ppm dan 0,109 ppm. Hasil penelitian menunjukkan bahwa metode analisis yang digunakan valid dan menghasilkan data yang reliabel. Setelah dibandingkan dengan standar baku mutu, keempat sampel melampaui ambang batas dan dikategorikan telah tercemar logam berat Pb dan Hg. 
The Desalination of Seawater from Jepara Beach uses Hollow Fiber Imprinted Membrane-Based Eugenol Djunaidi, Muhammad Cholid; Maharani, Nesti Dwi; Khabibi, Khabibi; Susanto, Heru; Filardli, Abdullah Malik Islam
Molekul Vol 20 No 1 (2025)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2025.20.1.7836

Abstract

ABSTRACT. In 2022, Indonesia will experience a major problem with clean water, almost 119 million people do not have access to clean water and are forced to consume unsuitable water. This problem is caused by poor water management and the high cost of separating using a reverse osmosis membrane. The abundance of seawater in Indonesia and Jepara in particular has encouraged researchers to create alternative desalination membranes that are efficient and selective using Hollow Fiber Desalination Imprinted Membranes (HFDIM), which are available on the market with better quality. Hollow Fiber uses an imprinted method that has good efficiency and selectivity. The variations used in this research were variations in seawater dilution concentration of 0, 3, 5, and 10 times. In tensile, biodegradable, contact angle, TGA, porosity, water absorption, flux, and transport tests, the best results were obtained using HFDIM at varying concentrations of 10 times dilution solutions with a percentage of 86.67% in the receiving phase and 10.89% in the feed phase. on HFDNIM it is 48.33% in the receiving phase and in the feed phase it is 50%. Keywords: Desalination, hollow fiber, imprinted, polyeugenol
Pengaruh High Energy Milling (HEM) pada Ukuran Partikel dan Kristalinitas Zeolit Alam untuk Adsorpsi Ion Cu(II) dan Ca(II) Pardoyo, Pardoyo; Suhartana, Suhartana; Haikel, Haikel; Wibawa, Pratama Jujur; Khabibi, Khabibi
Greensphere: Journal of Environmental Chemistry Vol 4, No 2 (2024): Vol 4, No 2(2024)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gjec.2024.22724

Abstract

Telah dilakukan penelitian pengaruh High Energy Milling (HEM) pada ukuran partikel dan kristalinitas zeolit alam untuk adsorpsi ion Cu(II) dan Ca(II). Penelitian ini bertujuan untuk menentukan pengaruh HEM pada ukuran partikel zeolit dan kristalinitas serta menentukan waktu  adsorpsi terbaik dengan zeolit alam dan zeolit alam milling. Metode penelitian dibagi menjadi tiga tahap, tahap pertama proses milling zeolit alam dengan HEM.  Tahap kedua karakterisasi zeolit dengan PSA dan XRD. Tahap ketiga adsorpsi ion  Cu(II) dan Ca(II) dengan kedua adsorben serta analisis perubahan konsentrasi dengan AAS. Hasil penelitian menunjukkan ukuran partikel zeolit alam dan zeolit alam milling berturut-turut adalah 3000 nm – 6000 nm, dan 288 nm – 540 nm. Hasil XRD menunjukkan kenaikan intensitas dan nilai 2θ dari zeolit milling terhadap zeolit alam. Perlakuan milling menyebabkan zeolit memiliki ukuran partikel lebih kecil sehingga zeolit alam milling mampu mengadsorpsi ion Cu(II) dan Ca(II) masing-masing 94,2% dan 35,69%. Perlakuan HEM mampu meningkatkan kemampuan adsorpsi Cu(II) dan Ca(II)
SEPARATION OF CHROM (VI) FROM ELECTROPLATING WASTE USING POLYMER INCLUSION MEMBRANE (PIM) METHOD Djunaidi, Muhammad Cholid; Khabibi, Khabibi; Nurfitriana, Rizka
ALCHEMY Jurnal Penelitian Kimia Vol 13, No 1 (2017): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.13.1.4562.119-132

Abstract

Research of chromium (VI) separation has been done using polymer inclusion membrane (PIM) method. This study aims to generate PIM, separate the metal ion chromium (VI) using PIM and determine the effect of the concentration of the feed phase, the thickness of the membrane and the amount of usage of the membrane for ion chromium (VI) diffusion.Polymer inclusion membrane (PIM) was made by mixing Aliquat 336-TBP as carrier compounds, PVC as the base polymer, DBE as a plasticizer and THF as a solvent. PIM membrane was placed between the source of analyte as a feed phase and result of the separation as a receiver phase. Feed phase was electroplating waste metal containing chromium (VI) at pH 4, while the receiver phase was a 2 N NaCl solution with a pH 6.7. The change of variables in this study were the concentration of the feed phase at various dilution i.e., 100x, 50x and 10x, the thickness of the membrane i.e., 25 μm, 20 μm and 10 μm, and the time of membrane using i.e., 1, 2 and 3 times. The concentration of chromium (VI) diffused after separation process was analyzed by atomic absorption spectroscopy (AAS). The stability of membrane was observed by analyzing the presence of membrane’s component in the feed phase and in the receiver phase. The analysis was conducted by UV-Vis spectrophotometry. Meanwhile, scanning electron microscopy (SEM) analysis was used to determine the morphology of membrane surface.The results showed that the chromium ion concentration diffused from the feed phase was 99.24%, meanwhile the 85.88% of it diffused to the receiving phase. The highest Cr(VI) ions diffusion was occured at the first use of PIM membrane with a thickness of 10 μm and the concentration of the feed phase was 10.55 ppm (resulted from 100 times dilution). Therefore, it can be concluded that the diffusion of chromium (VI) ion was influenced by the concentration of feed phase, the thickness of membrane and the number of membrane application.
Effect of Glycerol Modification on Mn-Doped ZnO–Chitosan Membranes for Tartrazine Photodegradation Soimah, Nur Faridatus; Khabibi, Khabibi; Lusiana, Retno Ariadi
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 10, No 3 (2025): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v10i3.107512

Abstract

This study evaluates the photocatalytic performance and charge transfer behavior of Mn-doped ZnO chitosan membranes, both with and without glycerol, for the degradation of tartrazine under visible light. The membranes were prepared by homogeneous mixing using chitosan as the polymer matrix, ZnO as the photocatalyst, Mn2+ as the dopant, and glycerol as a plasticizer. Membrane morphology and elemental distribution were examined using SEM and EDX, and supported by physical tests. Glycerol increased membrane flexibility and mechanical strength, but reduced porosity and surface hydrophilicity, indicating a denser polymer network and water accessibility. Photocatalytic activity was quantified from UV Vis monitoring of tartrazine and fitted to pseudo-first-order kinetics. The glycerol-containing membrane showed a higher rate constant (k = 0.4398 h−1) than the membrane without glycerol (k = 0.0893 h−1). The performance improvement is attributed to better catalyst retention and dispersion in the matrix, which supports photon utilization and charge separation. Mechanistic interpretation suggests that Mn2+ acts as an electron trap, thereby suppressing electron-hole recombination and promoting the formation of reactive species. At the same time, glycerol can suppress the generation of hydroxyl and superoxide radicals by limiting contact among tartrazine, water, and photocatalytically active sites. Overall, the results reveal a trade-off between transport properties and catalytic efficiency, identifying glycerol content as a key parameter for optimizing Mn-doped ZnO chitosan membranes for dye wastewater treatment.
Co-Authors Abdul Haris Abdul Haris Ahmad Ahmad Ahmad Suseno Alinda Megagita Nurratri Aulia Wulandari Ayuningrum, Denandha Putri Cahyaning Gesti Faradina Dede Trisna Didik Setiyo Widodo Drs. Gunawan M.Si. Dwi Prakoso Dwi Siswanta Erza Bestari Pranutik Agne Fadjrin Nur Rahmayani Filardli, Abdullah Malik Islam Fitra Nilla Sari Ginanjar Argo Pambudi Gunawan Gunawan Hadid, Mhd Annajmi Al Haikel, Haikel Helena Krey Henita Saulia Utari Heru Susanto Ikhsan, Tauhid Nur Ita Noor Khamidah Kaviani Suciana Alifah Kharisma Luthfiaratri Rahayu Khoirin Nita Ulfia Khoirun Nita Ulfia Linda Suyati Maharani, Nesti Dwi Mudasir Mudasir Muhammad Cholid Djunaidi Muhammad Ridho Shofwan Al Aziz Nor Basid Adiwibawa Prasetya Nur Asih Setyowati Nurfitriana, Rizka Pardoyo Pardoyo Patmawati Patmawati, Patmawati Pratama Jujur Wibawa Rahmad Nuryanto Rahmad Nuryanto Ratu Yulia Akhsanti Retno Ariadi Lusiana Risky Haerul Imam Rr. Dian Pratiwi Rum Hastuti Rum Hastuti Soimah, Nur Faridatus SRI ISDADIYANTO Srihapsari, Dwita Suhartana Suhartana Suprihatin Suprihatin Taslimah Taslimah Westriani Prambaningrum Yanuardi Raharjo, Yanuardi