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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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Journal : Chem Info

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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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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: 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.
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 Cholid Djunaidi Muhammad Ridho Shofwan Al Aziz Nor Basid Adiwibawa Prasetya Nur Asih Setyowati Pardoyo Pardoyo Patmawati Patmawati, Patmawati Pratama Jujur Wibawa 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 Suhartana Suhartana Suprihatin Suprihatin Taslimah Taslimah Westriani Prambaningrum Yanuardi Raharjo, Yanuardi