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All Journal VALENSI JURNAL KIMIA SAINS DAN APLIKASI Jurnal Natur Indonesia Jurnal Sains Materi Indonesia Bulletin of Chemical Reaction Engineering & Catalysis The Journal of Pure and Applied Chemistry Research Jurnal Farmasi Andalas Jurnal Riset Kimia Jurnal Kimia dan Kemasan Elkawnie Jurnal Litbang Industri Lantanida Journal Indonesian Journal of Chemistry Jurnal Ecolab Molekul: Jurnal Ilmiah Kimia Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Hydrogen: Jurnal Kependidikan Kimia REACTOR : Journal of Research On Chemistry And Engineering Jurnal Kimia dan Kemasan Jurnal Litbang Industri Bulletin of Chemical Reaction Engineering & Catalysis al Kimiya : Jurnal Ilmu Kimia dan Terapan
Safni Safni
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Andalas University, Kampus Unand Limau Manis Padang, 25163
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences Other

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Degradasi Zat Warna Direct Red-23 dan Direct Violet Dengan Metode Ozonolisis, Fotolisis Dengan Sinar Uv dan Cahaya Matahari Menggunakan Katalis N-Doped TiO2 Safni, Safni; Anggraini, Deby; Wellia, Diana Vanda; Khoiriah, Khoiriah
Jurnal Litbang Industri Vol 5, No 2 (2015)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1259.876 KB) | DOI: 10.24960/jli.v5i2.675.123-130

Abstract

Direct red-23 and Direct violet are non-biodegradable compounds containing azo component and carcinogenic. Direct red-23 and Direct violet had been degraded by ozonolysis, photolysis with UV lamp and solar irradiation methods using N-doped TiO2 catalyst. UV/Vis Spectrophotometer at wavelength 300-800 nm was used to measure the absorption of sample solution. The optimum weight of N-doped TiO2 catalyst was 20 mg. From the three methods obtained that ozonolysis method was the faster degradation process than photolysis with UV and solar irradiation. Direct red-23 and Direct violet was degraded as much as 55 and 50% within 20 minutes by ozonolysis.ABSTRAKZat warna Direct red-23 dan Direct violet merupakan senyawa non-biodegradable yang mengandung senyawa azo dan bersifat karsinogen. Direct red-23 dan Direct violet didegradasi menggunakan metode ozonolisis, fotolisis dengan sinar UV dan dengan penyinaran matahari, tanpa dan dengan katalis N-doped TiO2. Hasil penelitian diukur dengan spektrofotometer UV-Vis pada panjang gelombang 300-800 nm. Berat optimum katalis N-doped TiO2 didapatkan 20 mg. Dari ketiga metode didapatkan bahwa proses degradasi pada metode ozonolisis paling cepat dibandingkan dengan fotolisis sinar UV dan cahaya matahari. Direct red-23 dan Direct violet dapat didegradasi sebanyak 55 dan 50% dalam waktu 20 menit.
DEGRADASI SENYAWA PERMETRINDENGAN MENGGUNAKAN TiO2-Anatase DAN ZEOLIT ALAM SECARA SONOLISIS -, Zilfa; Suyani, Hamzar; -, Safni; Jamarun, Novesar
Jurnal Riset Kimia Vol 2, No 2 (2009): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v2i2.162

Abstract

  ABSTRACT The research about the degradation of permethryn compound had been done by sonolysis method using anatase- TiO2 and natural zeolyte (mordenit kinds) as catalysts. Permethryn is one of synthetic pyretroid pesticides that low toxicity for mamals but it is high toxicity for fishs, insects and water microorganisms. Sonolysis method is conducted by using ultrasonic wave at frequency 45 kHz. The results show that sonolysis method without the addition of anatase-TiO2 and zeolite on optimum temperature at 40°C during 120 minutes treatments could be degrade 20 mg/L permethryn until 22.23%. In other hands, the degradation of 20 mg/L permethryn in the same condition with adding 0.002 g anatase-TiO2 achieved 44.95% but for using 0.2 g zeolyte could be degrade 52.34%.  Keywords :  degradation, permethrin ,TiO2-anatase , sonolysis, zeolite   
PEMBUATAN DAN KARAKTERISASI KATALIS TIO2/KARBON AKTIF DENGAN METODE SOLID STATE Septiani, Upita; Gustiana, Mega; -, Safni
Jurnal Riset Kimia Vol 9, No 1 (2015): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v9i1.257

Abstract

Composite catalyst of TiO2/Activated Carbon (TiO2/AC) had been synthesized with successfully by solid-state method. Synthesis was done by varying the addition of AC 5%, 10% and 15% of the mass of TiO2 was used. Composite catalyst was calcinated at temperature 400°C and characterized by Fourier Transform Infra-Red (FTIR), X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). FTIR spectrum show that the absorption appearedin the regionof C=C at wave number 1600-1800 cm-1, that assumed from AC. From XRD we can see that with variated of AC do not given different XRD patterns significantly, crystal structure of composite catalyst is anatase. SEM images showed that AC prevented the aglomeration of TiO2 that would expand surface area and increased catalytic activity of TiO2.
DEGRADASI SENYAWA IMIDAKLOPRID SECARA ADVANCED OXIDATION PROCESSES DENGAN PENAMBAHAN TIO2-ANATASE Amelia, Fitrah; -, Safni; Suyani, Hamzar
Jurnal Riset Kimia Vol 8, No 2 (2015): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v8i2.225

Abstract

Imidacloprid is active compounds in Confidor 200 SL with  have toxical character. Degradation of Imidacloprid in Advanced Oxidation Processes (AOPs) method by using TiO2 catalyst can reduce toxic level. Advanced Oxidation Processes (AOPs) method which is used is Sonolysis, Photolysis, and Ozonolisis. The result of sonolysis, Photolysis, and Ozonolysis measured by spectrophotometer UV-Vis with λ 400-600 nm, and than optimum degradation waste after addition of catalys measured by HPLC. The result of degradation of Imidacloprid 6 mg/L using sonolysis without addition catalys is more smallest from addition catalys which degradated in 60 minute, temperature 25±1 °C. At the same time with Photolysis methode for addition catalys we get the degradation is more biggest from addition catalys. Degradation percentage of imidacloprid without addition of TiO2-anatase reach is small from with addition of TiO2. Measure using HPLC for each methode we get more than one peak in chromatogram. It means there are other coumpounds in imidacloprid solution.
DEGRADASI RHODAMIN B SECARA FOTOKATALISIS DAN OZONOLISIS DENGAN PENAMBAHAN TIO2-NIFE2O4, TiO2-CuFe2O4, DAN TiO2-MnFe2O4 -, Safni; -, Deliza; -, Rahmayeni
Jurnal Riset Kimia Vol 7, No 2 (2014): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v7i2.178

Abstract

Vol 7 No 2ABSTRACTDegradation of Rhodamin B has been done by photocatalytic and ozonolysis using TiO2-Anatase and TiO2-NiFe2O4, TiO2-CuFe2O4, TiO2-MnFe2O4 catalysts, photocatalytic methodused lamp with λ = 365 nm and ozonolysis methode used ozon reactor. Analysis of degradationresult used spectrofotometer UV-Vis. TiO2-NiFe2O4, TiO2-CuFe2O4, TiO2-MnFe2O4 catalystwere characterized by XRD to determine size and structure of crystal. The solution ofRhodamin-B 2 mg/L was degraded 93,33 % without catalyst after being photolysed for 180minutes and after adding 0,02 g TiO2-MnFe2O4, TiO2-CuFe2O4, TiO2-Anatase, TiO2-NiFe2O4catalyst. The additional consentration in a row are 99,55 %; 99,77 %; 100 %; 100 %. Thesolution of Rhodamin B 2 mg/L was degraded 99,33% without catalyst after being ozonolysisfor 25 minutes and after adding 0,02 g of TiO2- MnFe2O4, TiO2-CuFe2O4, TiO2-Anatase, TiO2-NiFe2O4 catalysts with the additional consentration in a row are 99,77 %, 99,77 %, 99,77 %,100 %. So the degradation of Rhodamin B using ozonolysis method was faster thanphotocatalytic with catalysts and without catalyst.Keywords: Rhodamin B, Photocatalytic, Ozonolysis, TiO2-Anatase, TiO2-NiFe2O4, TiO2-CuFe2O4,TiO2-MnFe2O4.
DEGRADASI SENYAWA DIKOFOL DALAM PESTISIDA KELTHANE 200 EC SECARA FOTOLISIS DENGAN PENAMBAHAN TiO2-ANATASE -, Safni; -, Desmiati; Suyani, Hamzar
Jurnal Riset Kimia Vol 2, No 2 (2009): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v2i2.154

Abstract

  ABSTRACT This research is conducted to know whether dicofol compound in Kelthane 200 EC pesticide can be degraded with photolysis method by adding TiO2-anatase. Photolysis method is conducted by using UV 10 watt lamp at the wavelength of 365 nm. The result shows that photolysis method could degrade the dicofol compound at 30 mg/L concentration as 9.73% after 60 minutes irradiation. Paraquat compound with the similar concentration by adding 30 mg unmixed TiO2-anatase could degradade 32.51% after 60 minutes irradiation and 65.84% by mixing TiO2-anatase. Furthermore, dicofol with the same concentration and TiO2-anatase addition could 86.13% after 180 minutes irradiation. Keywords : degradation, photolysis, dicofol, anatase-TiO2   
DEGRADASI MALACHITE GREEN OXALATE SECARA FOTOLISIS DAN OZONOLISIS DENGAN PENAMBAHAN ZnO-SnO2 Bhernama, Bhayu Gita; -, Syukri; -, Safni
Jurnal Riset Kimia Vol 7, No 2 (2014): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v7i2.169

Abstract

Vol 7 No 2ABSTRACTDegradation of malachite green oxalate (MGO) compounds has been carried out by ozonolysisand photolysis methods with addition of ZnO-SnO2 as catalyst. MGO solution was analyzed bya spectrophotometer UV/Vis at 250-650 nm. The results showed that ozonolysis process fasterthan photolysis. 6 mg/L MGO can be degraded as much as 97.3% after irradiated with UV light(369 nm) within 150 minutes with the addition of 0.020 g of ZnO-SnO2. Otherwise, 99.6% of 6mg/L MGO can be degraded by ozonolysis process within 5 minutes by the addition of 0.025 gof ZnO-SnO2. Analysis of the remaining MGO solution by reverse-phase HPLC showedintermediate-substances peaks and peak height of MGO at a retention time of 3.18 mindecreased as the data obtained using a UV/Vis spectrophotometer.Keywords: degradation, MGO, photolysis, ozonolysis, ZnO-SnO2
DEGRADASI SENYAWA PARAQUAT DALAM PESTISIDA GRAMOXONE® SECARA SONOZOLISIS DENGAN PENAMBAHAN TiO2-ANATASE Yenni, Neila; Safni, Safni; Suyani, Hamzar
Jurnal Riset Kimia Vol 3, No 2 (2010): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v3i2.58

Abstract

 ABSTRACT Degradation of Paraquat compound in Gramoxone pesticide had been done by sonolysis, ozonolysis, and sonozolysis. Sonolysis methods were performed using an ultrasound VC-1, ozonolysis using a bio-ozone space age sterilizer, and sonozolysis by combining sonolysis and ozonolysis methods. The optimum condition for degradation of 4 mg/L paraquat by sonolysis was found at temperature 40±1°C. Percentage of degradation at optimum condition was 22.80% with 90 minutes treatment. Whereas, with using ozonolysis method percentage of degradation of paraquat 4 mg/L was 50.39% with 60 minutes treatment. The combination of sonolysis and ozonolysis method simultaneously, these so-called sonozolysis, for degradation of the same compound, extend the percentage of degradation to 45.87% with only 30 minutes treatment. Keywords: Paraquat, Sonolisis, Ozonolisis
DEGRADASI ZAT WARNA SUDAN I SECARA SONOLISIS DAN FOTOLISIS DENGAN PENAMBAHAN TiO2-ANATASE -, Safni; Loekman, Umiati; Febrianti, Fitra; -, Maizatisna; Sakai, Tadao
Jurnal Riset Kimia Vol 1, No 2 (2008): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v1i2.67

Abstract

 ABSTRACT Degradation of Sudan I dye had been done with sonolysis and photolysis by adding anatase-TiO2.  Sonolysis method were performed using an ultrasound with frequency  of 45 kHz. Photolysis method were performed using an irradiation of UV light with λ = 359 nm.  Degradation of 4 mg/L Sudan I with addition of 0.1000 g anatase-TiO2 at pH = 7.0, temperature 25 ± 1°C, percentage of degradation 64.04% within 180 minutes sonolysis.  Degradation of 4 mg/L Sudan I using photolysis with addition of 0.1000 g anatase-TiO2 at pH = 7.0 and percentage of degradation 100% within 180 minutes photolysis. Degradation of 4 mg/L Sudan I using sonolysis and photolysis  simultaneously with addition of 0.1000 g anatase-TiO2 at pH = 7.0 and percentage of degradation 94.04% within 180 minutes treatment.   Keywords : degradation, sonolysis, photolysis, Sudan I, anatase-TiO2.
Penggunaan Zeolit sebagai Pendegradasi Senyawa Permetrin dengan Metoda Fotolisis Zilfa, Zilfa; Suyani, Hamzar; Safni, Safni; Jamarun, Novesar
Jurnal Natur Indonesia Vol 14, No 1 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (132.086 KB) | DOI: 10.31258/jnat.14.1.14-18

Abstract

The research about the degradation of permethryn compound has been done by photolysis method using natural zeolyte as catalyst.Permethryn is one syntetic pyretroid pesticides that low toxicity for mammals but it is high toxicity for fishs, insects and water microorganisms.Zeolyte is aluminosilicate minerals that can be used for degradation of permethryn. Percentage degradation of permethryn is lower withoutzeolyte than using zeolyte as catalyst by photolysis method. 20 mg/l permethryn solution could be degraded 5.40% after 120 minutesirradiation, while by adding 0.20 g natural zeolyte, permethryn could be degraded 69.70
Co-Authors -, Maizatisna -, Roswita -, Zulfarman Abinul Hakim Adlis Santoni Admi Admi Aldini, Tasya Amelia, Fitrah Anggraini, Deby Anna Fadhilla Arief Yandra Putra Bhayu Gita Bhernama BUSTANUL ARIFIN Chris Deviarny Deby Anggraini Deliza - Deliza, Deliza Desmiati - Deswati Deswati Dheasy Gustira Dina Nofebriani Dini Hariyati Adam Dytta Fitria Elma Fadrita Rahman Emriadi - Eno Okta Patricia Era, Yuni Fadhilla, Anna Fardila Sari Febi Rahmi Febrina Arfi Fitra Febrianti Fitrah Amelia Fitrah Amelia fitri mairizki Fitri Mairizki, Fitri Fivi Mona Bareno Gustiana, Mega Hakim, Abinul Hamzar Suryani Hamzar Suyani Harza Dipajana Umardi Hazanita Jumiaty Hazanita Jumiaty Henny Lucida Hermansyah Aziz Hermansyah Aziz Hilfi Pardi Ibnu Irawan Imelda Imelda Jarnuzi Gunlazuardi Jihanul Khaira K Khoiriah Khoiriah Khoiriah Khoiriah Khoiriah Khoiriah Khoiriah Khoiriah Khoiriah Khoiriah Khoiriah Khoiriah Khoiriah, Khoiriah Liansari, Oktanora Mai Efdi Mai Efdi Maizatisna - Maizatisna Maizatisna Marniati Salim Matlal Fajri Alif Mechy Rezita Wahyuni Mega Gustiana Muhamad Nasir Muhamad Nasir, Muhamad Neila Yenni Norman Ferdinal Novesar Jamarun Novesar Jamarun Nurul Pratiwi Oktanora Liansari Olly Norita Tetra Putri Arwanda Putri Perdana Roza Putri, Reza Audina Rahmi, Febi Rahmiana Zein Refilda Refilda Refinel - Reza Audina Putri Reza Audina Putri Roswita - Roza, Putri Perdana Sakai, T. Sakai, Tadao Salmariza Sy Sumaryati Syukur Suryati Suryati Syukri - Syukri Arief Syukri Syukri Syukri Syukri Syukri Syukri T. Sakai Tadao Sakai Tommi Hermansyah Trisna Olinovela Trisna Ollinovela Umiati Loekman Umiati Loekman Umiati Loekman Upita Septiani Vanny Yulia Safitri Vepilia Wulanda Wellia, Diana Vanda Willy Cahya Nugraha Willy Cahya Nugraha, Willy Cahya Yefrida - Yefrida Yefrida Yetria Rilda Yuli Okta Fitriyani Yulizar Yusuf Yulizar Yusuf Yuni Era Zaimi Abdullah Zaimi Abdullah Zilfa Zilfa Zulfarman - Zulfarman Zulfarman Zulkarnain Chaidir