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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 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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PENGARUH PASTA ZnO HASIL SINTESIS DENGAN PENAMBAHAN POLI VINIL ALKOHOL (PVA) DAN DISH DETERGENT TERHADAP EFISIENSI DYE-SENSITIZED SOLAR CELL (DSSC) DARI EKSTRAK BUNGA ROSELA(Hibiscus sabdariffa L.) Pratiwi, Rr. Dian; ,M.Si, Drs. Gunawan; ,M.Si, Khabibi
Chem Info Journal Vol 1, No 2 (2013)
Publisher : Chem Info Journal

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Abstract

A study the effects of synthesized ZnO pasta with the addition of poly vinyl alcohol (PVA) and dish detergent on the efficiency of dye-sensitized solar cell (DSSC) of rosella flower extract (Hibiscus sabdariffa L.) had been done. The purpose of this study was to obtain ZnO from the precursor of Zn(CH3COO)2.2H2O with precipitation method as a semiconductor material in DSSC prototype and to determine the influence of synthesized ZnO pasta with poly vinyl alcohol and dish detergent to the dye-sensitized solar cell. The method used in this study with the manufacture of ZnO was by precipitation method using precursor of Zn(CH3COO)2.2H2O. The results obtained were analyzed by XRD, FTIR spectrophotometry, and SEM. ZnO crystals obtained had a size of 25.676 nm and pore size of 71.43 nm. ZnO was then used as a semiconductor in DSSC using dye rosella extract. ZnO pasta was added with variation of binders that attached to the FTO glass using PVA and dish detergent. The efficiencies obtained from each variation was 0.225x10-3% for PVA while 0.138 x10-3% for dish detergent. PVA binder can produce better efficiency of DSSC.
PEMANFAATAN KITOSAN DARI LIMBAH KULIT UDANG WINDU (Penaeus monodon) SEBAGAI BAHAN ANTIMIKROBA PADA PROSES PENYIMPANAN IKAN NILA (Oreochromis niloticus) Alifah, Kaviani Suciana; , M.Si., Khabibi; Widodo, M.Si., Didik Setiyo
Chem Info Journal Vol 1, No 2 (2013)
Publisher : Chem Info Journal

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Abstract

Abstract: Has done research on use of chitosan from shrimp skin (Peneaus monodon) waste as antimicrobial agents in the process of tilapia (Oreochromis niloticus) storage. The purpose of this research is to isolate chitin from the shrimp skin (Peneaus monodon) waste into chitosan, and use as an alternative to be a natural antimicrobial compounds as well as determine the optimum concentration of chitosan solution as a preservative of tilapia (Oreochromis niloticus). This research was carried out by preparation of chitosan from shrimp skin (Peneaus monodon) was begin with deproteination using 3.5% NaOH, demineralization using HCl 1N, and deacetylation using 50% NaOH, analyzing its deacetylation degree by baseline method. Then it was used as an antimicrobial of tilapia, tilapia was immersed in a solution of chitosan by varying the concentration (w/v) 1%, 1.5% and 2% in 2% acetic acid. Storage was varied within 0 days, 1 day, 2 days; 3 days, and 4 days. The results of extraction was found white-grayish colour chitin and white chitosan with deacetylation degree of 66.73%. The optimum concentration of chitosan as an antimicrobial agent of tilapia is 2% with storage time of four day which preserve the fish is consumable.
Pengaruh Penambahan Aditif terhadap Karakterisasi Fisikokimia Membran Polisulfon Lusiana, Retno Ariadi; Prasetya, Nor Basid Adiwibawa; Khabibi, Khabibi
Indonesian Journal of Chemical Science Vol 9 No 3 (2020)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijcs.v9i3.41759

Abstract

Penggunaan polisulfon (PSf) sebagai bahan membrane telah meluas ke berbagai bidang, karena memiliki kekuatan mekanik dan ketahanan termal yang tinggi. Untuk meningkatkan kinerja membran, pada penelitian ini PSf direaksikan dengan zat aditif : polietilen glikol (PEG), sulfonasi dan kitosan tripolifosfat) CS-TPP, agar diperoleh membran dengan struktur dan morfologi yang sesuai. Membran dibuat melalui sistem inversi fasa dalam pelarut NMP (N-methyl pirolidone) dan air (non-pelarut air). Berdasar data analisis gugus fungsi dapat disimpulkan modifikasi menggunakan PEG, sulfonasi dan CS-TPP telah berhasil dilakukan pada polisulfon, ditunjukkan dengan muncul serapan spesifik gugus –OH (PEG) pada daerah 3400 cm-1. Masuknya gugus sulfon ditunjukkan oleh serapan kuat pada 1105 cm-1 yang menunjukkan peregangan –SO2 dari gugus -SO3H, penguatan serapan gugus –C-S pada 570 cm-1 yang mengindikasikan adanya peningkatan ikatan C-S, peak tersebut menunjukkan bahwa gugus –SO3H berikatan dengan benzen pada rantai polimer PSf. Masuknya kitosan-tripolifosfat (CS-TPP) ditunjukkan oleh serapan pada 1151 cm-1 yang merupakan regangan gugus –PO4 dan pada 1104 cm-1 merupakan serapan gugus –P-O-R. Pita serapan lain pada 1320 cm-1 menunjukkan serapan gugus –C-N dan pada 1585 cm-1 merupakan regangan gugus –OH dari O=P-OH serta terjadi pergeseran serapan gugus –OH dari 3464 cm-1 ke 3567 cm-1 dengan intensitas yang lebih besar. Berdasar data fisikokimia, menunjukkan bahwa modifikasi terhadap rantai polisulfon meningkatkan daya serap air, daya pengembangan, porositas, hidrofilisitas, dan fluks membran.
Pengaruh Penambahan Aditif terhadap Karakterisasi Fisikokimia Membran Polisulfon Lusiana, Retno Ariadi; Prasetya, Nor Basid Adiwibawa; Khabibi, Khabibi
Indonesian Journal of Chemical Science Vol 9 No 3 (2020)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijcs.v9i3.41759

Abstract

Penggunaan polisulfon (PSf) sebagai bahan membrane telah meluas ke berbagai bidang, karena memiliki kekuatan mekanik dan ketahanan termal yang tinggi. Untuk meningkatkan kinerja membran, pada penelitian ini PSf direaksikan dengan zat aditif : polietilen glikol (PEG), sulfonasi dan kitosan tripolifosfat) CS-TPP, agar diperoleh membran dengan struktur dan morfologi yang sesuai. Membran dibuat melalui sistem inversi fasa dalam pelarut NMP (N-methyl pirolidone) dan air (non-pelarut air). Berdasar data analisis gugus fungsi dapat disimpulkan modifikasi menggunakan PEG, sulfonasi dan CS-TPP telah berhasil dilakukan pada polisulfon, ditunjukkan dengan muncul serapan spesifik gugus –OH (PEG) pada daerah 3400 cm-1. Masuknya gugus sulfon ditunjukkan oleh serapan kuat pada 1105 cm-1 yang menunjukkan peregangan –SO2 dari gugus -SO3H, penguatan serapan gugus –C-S pada 570 cm-1 yang mengindikasikan adanya peningkatan ikatan C-S, peak tersebut menunjukkan bahwa gugus –SO3H berikatan dengan benzen pada rantai polimer PSf. Masuknya kitosan-tripolifosfat (CS-TPP) ditunjukkan oleh serapan pada 1151 cm-1 yang merupakan regangan gugus –PO4 dan pada 1104 cm-1 merupakan serapan gugus –P-O-R. Pita serapan lain pada 1320 cm-1 menunjukkan serapan gugus –C-N dan pada 1585 cm-1 merupakan regangan gugus –OH dari O=P-OH serta terjadi pergeseran serapan gugus –OH dari 3464 cm-1 ke 3567 cm-1 dengan intensitas yang lebih besar. Berdasar data fisikokimia, menunjukkan bahwa modifikasi terhadap rantai polisulfon meningkatkan daya serap air, daya pengembangan, porositas, hidrofilisitas, dan fluks membran.
Recovery of Cu (II) and Cr (VI) Metals from Electroplating Liquid Waste Using Polymer Inclusion Membrane (PIM) muhammad cholid djunaidi; Nor Basid Adiwibawa Prasetya; Nur Asih Setyowati; Khabibi Khabibi; Khoirun Nita Ulfia
Reaktor Volume 18 No. 2 June 2018
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (643.189 KB) | DOI: 10.14710/reaktor.18.2.102-109

Abstract

Research on recovery of Cu (II) and Cr (VI) from electroplating liquid waste has been carried out using a Polymer Inclusion Membrane (PIM). PIM has a high stability to overcome the weakness of liquid membrane instability. The PIM membrane was placed between two phases namely the feed phase as a metal source of Cu (II) from electroplating waste with pH 3 and the receiving phase which is HNO3 solution with pH 1 and pH 4.4 in the feed phase and pH 6.3 in the receiving phase with NaCl 2 N for metal Cr (VI). Recovery efficiency is known by determining the concentration of Cu (II) and Cr (VI) in the feed and receiving phases using AAS, while the membrane characterization were carried out using FTIR, SEM and UV-vis spectroscopy. The resulting PIM membrane has properties of thin, clear and flexible. AAS data showed that the percentage of PIM transport with stirring for 24 hours performed the highest percentage of Cu (II) metal transport from feed phase of 83.41% and transport in the receiving phase of 72.56%. While the percentage of optimum Cr (VI) transport was 97.8% in the feed phase and 76.5% in the receiving phase. The results of membrane characterization using FTIR and UV spectroscopy showed that the PIM membrane was quite stable. While the results of SEM show that there were no pores in the membrane so that the transport occurs by diffusion through the intermediate of the carrier compound. Keywords: electroplating waste; liquid membrane; PIM
SEPARATION OF CHROM (VI) FROM ELECTROPLATING WASTE USING POLYMER INCLUSION MEMBRANE (PIM) METHOD Muhammad Cholid Djunaidi; Khabibi Khabibi; Rizka Nurfitriana
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.
Grafting of Heparin on Blend Membrane of Citric Acid Crosslinked Chitosan/Polyethylene Glycol-Poly Vinyl Alcohol (PVA-PEG) Retno Ariadi Lusiana; Ginanjar Argo Pambudi; Fitra Nilla Sari; Didik Setiyo Widodo; Khabibi Khabibi; Sri Isdadiyanto
Indonesian Journal of Chemistry Vol 19, No 1 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (558.158 KB) | DOI: 10.22146/ijc.30861

Abstract

Heparin, an active sulfate group material, grafted onto blend membrane citric acid cross-linked chitosan/poly (vinyl alcohol)-poly(ethylene glycol) (PVA-PEG) to improve the membrane properties. The physical tests shown that grafting reaction of citric acid crosslinked chitosan increased the mechanical strength and membrane swelling. The permeability test results, it was found that the grafted chitosan membrane was improved permeability of both urea and creatinine as compared to chitosan pure and chitosan crosslinked membrane. The negative charge of the sulphonate group of heparin increased the number of the active side of the carrier in the membrane, which then correlated to the membrane’s permeability process.
Preparation, Characterization, and In Vitro Hemocompatibility of Glutaraldehyde-Crosslinked Chitosan/Carboxymethylcellulose as Hemodialysis Membrane Khabibi Khabibi; Dwi Siswanta; Mudasir Mudasir
Indonesian Journal of Chemistry Vol 21, No 5 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.61704

Abstract

This study aims to examine the manufacture, characterization, and in vitro hemocompatibility of glutaraldehyde-crosslinked chitosan/carboxymethyl cellulose (CS/CMC-GA) as a hemodialysis membrane. The CS/CMC-GA membrane was prepared using the phase inversion method with 1.5% CS and 0.1% CMC. The chitosan was crosslinked with glutaraldehyde in various monomers ratios, and the membranes formed were characterized by FTIR, SEM, and TGA. Furthermore, the hydrophilicity, swelling, porosity, mechanical strength, and dialysis performance of the membranes against urea and creatinine were systematically examined, and their in-vitro hemocompatibility tests were also conducted. The results showed that the CS/CMC-GA membranes have higher hydrophilicity, swelling, porosity, mechanical strength, and better dialysis performance against urea and creatinine than chitosan without modification. In addition, the hemocompatibility test indicated that the CS/CMC-GA membranes have lower values of protein adsorption, thrombocyte attachment, hemolysis ratio, and partial thromboplastin time (PTT) than that of pristine chitosan. Based on these results, the CC/CMC-GA membranes have better hemocompatibility and the potential to be used as hemodialysis membranes.
Sintesis Asam Eugenoksi Asetat (EOA) dari Eugenol untuk Ekstraktan Logam Berat dan Recovery Krom dari Limbah Elektroplating Muhammad Cholid Djunaidi; Khabibi Khabibi; Dede Trisna
Jurnal Kimia Sains dan Aplikasi Vol 13, No 1 (2010): Volume 13 Issue 1 Year 2010
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (387.785 KB) | DOI: 10.14710/jksa.13.1.12-17

Abstract

Telah dilakukan penelitian tentang pemisahan logam Cu(II), Cd(II) dan Cr(III) dan recovery limbah krom menggunakan senyawa pembawa Eugenil Oksiasetat hasil sintesis. Senyawa pembawa Eugenil oksiasetat disintesis dari eugenol dengan penambahan NaOH dan asam kloroasetat di mana garam yang terbentuk diasamkan dengan HCl. Setelah itu dilakukan pemurnian dengan dietil eter dan NaHCO3. Hasil sintesis dianalisis dengan FTIR dan kromatografi gas. Untuk proses transport, fasa umpan menggunakan campuran ion logam Cu(II), Cd(II), dan Cr(III) masing-masing 50 ppm, fasa penerima adalah HCl dengan variasi pH 1 sampai 6. Sedangkan untuk mengetahui selektifitas senyawa EOA dilakukan transport menggunakan variasi massa eugenil oksiasetat yaitu 0,3 gram; 0,5 gram dan 0,7 gram serta blanko. pH dan massa eugenil oksiasetat terbaik digunakan untuk recovery logam krom dari limbah electroplating dengan dua cara yaitu dengan reduksi limbah krom dan tanpa reduksi limbah krom. Untuk mengetahui jumlah logam yang tertransport dianalisis dengan AAS. Hasil yang diuji menunjukkan bahwa eugenil oksiasetat berhasil disintesis dengan kemurnian 100 %. Hasil transport menunjukkan bahwa EOA memiliki selektivitas tinggi terhadap Cr(III) dengan persen transport terbaik 95,17 % yang diperoleh pada pH fasa penerima 1 dan massa eugenil oksiasetat 0,7 gram. Hasil recovery limbah krom tanpa reduksi mampu mentransport sebanyak 5,42 %, sedangkan hasil recovery krom dengan reduksi mampu mentransport limbah krom sebanyak 68,60%.
Potential Adsorption of Heavy Metal Ions by Eugenol Compounds and Derivatives through Ion Imprinted Polymer Muhammad Cholid Djunaidi; Khabibi Khabibi
Jurnal Kimia Sains dan Aplikasi Vol 22, No 6 (2019): Volume 22 Issue 6 Year 2019
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2503.691 KB) | DOI: 10.14710/jksa.22.6.263-268

Abstract

Research on the potential of Ion Imprinted Polymer (IIP) selective adsorption of heavy metals using eugenol compounds and their derivatives has been carried out. Isolation and synthesis of eugenol derivatives with metal selective active groups and their use as selective metal carriers have been carried out with satisfactory results. Carrier effectiveness can still be improved by methods that focus on the target molecule recognition model. This adsorption method is called Ion Imprinted Polymer (IIP). The main components of IIP are functional monomers, crosslinkers, and target molecules. The use of acrylamide and its derivatives as functional monomers is useful with a lot of success achieved but also invites danger because it includes carcinogenic substances, a nerve poison, and so on. Moreover, the N group, which is an active acrylamide group, and its derivatives are only selective towards borderline metals (HSAB theory). Alternatives that are safe and can increase their selectivity are therefore needed. Eugenol, with its three potential functional groups, is believed to be able to replace the function of acrylamide and its derivatives that can even increase the effectiveness of IIP. The purpose of this study is to determine the potential of eugenol derivatives as selective adsorbents through the IIP method. This synthesis of IIP involved the use of basic ingredients of eugenol and its derivatives (polyeugenol, EOA, polyacetate). Each base material is contacted with a metal template then crosslinked with three kinds of crosslinking agents, namely EGDMA, DVB, and bisphenol. IIP is formed after the metal template is released using acid/HCl. The outcomes obtained demonstrate that the IIP method is able to increase the metal adsorption capacity and that the IIP method for metals is largely determined by the release of metals, which will form a hole for metal entry through adsorption. Poly-Cd-DVB, Eug-Cr-DVB, Poly-Cu-bisphenol, Polyacetate -Cr-DVB are polymer materials that have the potential to make up an IIP.
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 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 Cholid Djunaidi Muhammad Ridho Shofwan Al Aziz Nor Basid Adiwibawa Prasetya Nur Asih Setyowati Pardoyo Pardoyo Patmawati Patmawati, Patmawati Rahmad Nuryanto Rahmad Nuryanto Ratu Yulia Akhsanti Retno Ariadi Lusiana Risky Haerul Imam Rizka Nurfitriana Rr. Dian Pratiwi Rum Hastuti Rum Hastuti SRI ISDADIYANTO Srihapsari, Dwita Suprihatin Suprihatin Taslimah Taslimah Westriani Prambaningrum Yanuardi Raharjo, Yanuardi