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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Riset Kimia Science and Technology Indonesia Molekul: Jurnal Ilmiah Kimia Sains dan Matematika Darma Sabha Cendekia Molekul: Jurnal Ilmiah Kimia Bulletin of Chemical Reaction Engineering & Catalysis Indonesian Journal of Material Research
Anung Riapanitra
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Jenderal Soedirman University, Purwokerto|Jenderal Soedirman University|Indonesia
Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics

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ADSORPSI RHODAMIN B DENGAN ADSORBEN KITOSAN SERBUK DAN BEADS KITOSAN Kurniasih, Mardiyah; Riapanitra, Anung; Rohadi, Anas
Sains & Matematika Vol 2, No 2 (2014): April, Sains & Matematika
Publisher : Sains & Matematika

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Abstract

Chitosan is a biopolymer that has adsorption ability toward dye substances due to its amino and hydroxyl functional groups. Thisstudy aimed to synthesize chitosan and chitosan beads from jerbung shrimp shell, and to test their adsorption ability on rhodamine Bdye. The chitosan and chitosan beads product of the synthesis were characterized using Fourier Transform Infra-Red Spectrophotometer(FTIR) as well as the determination of water content, ash content, and swelling effect. The adsorption ability of chitosan and chitosanbeads on rhodamine B was tested using the parameters of maximum wavelength as well as the effect of variation of pH and contact time.The results of the study showed that the synthesis gave result to chitosan and chitosan beads with water content of 4.45% and 6.84%, ashcontent of 0.1% and 2.83%, and the swelling effect of 143.43 and 94.05%, respectively. Chitosan and chitosan beads adsorb rhodamineB optimally at pH 4 and 3 with a contact time of 120 and 180 minutes, respectively at a maximum wavelength of 554.2 nm.
Adsorpsi Rhodamin B dengan Adsorben Kitosan Serbuk dan Beads Kitosan Kurniasih, Mardiyah; Riapanitra, Anung; Rohadi, Anas
Sains & Matematika Vol 2, No 2 (2014): April, Sains & Matematika
Publisher : Sains & Matematika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Chitosan is a biopolymer that has adsorption ability toward dye substances due to its amino and hydroxyl functional groups. Thisstudy aimed to synthesize chitosan and chitosan beads from jerbung shrimp shell, and to test their adsorption ability on rhodamine Bdye. The chitosan and chitosan beads product of the synthesis were characterized using Fourier Transform Infra-Red Spectrophotometer(FTIR) as well as the determination of water content, ash content, and swelling effect. The adsorption ability of chitosan and chitosanbeads on rhodamine B was tested using the parameters of maximum wavelength as well as the effect of variation of pH and contact time.The results of the study showed that the synthesis gave result to chitosan and chitosan beads with water content of 4.45% and 6.84%, ashcontent of 0.1% and 2.83%, and the swelling effect of 143.43 and 94.05%, respectively. Chitosan and chitosan beads adsorb rhodamineB optimally at pH 4 and 3 with a contact time of 120 and 180 minutes, respectively at a maximum wavelength of 554.2 nm.
Determination of Cu and Pb concentrations based on urease activity inhibition of Durio zibethinus L. seeds Zusfahair, Zusfahair; Fatoni, Amin; Ningsih, Dian Riana; Riapanitra, Anung
Molekul Vol 16, No 2 (2021)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.71 KB) | DOI: 10.20884/1.jm.2021.16.2.736

Abstract

The determination of heavy metal concentrations has been carried out using sophisticated instruments, and therefore a simple and reliable alternative method is needed as a comparison. The study aimed to determine Cu and Pb concentration of standard solution using the urease activity inhibition method of Durio zibethinus L.  seeds.  The research started with urease extraction from Durio D. zibethinus L. seeds. The activity of the obtained extract was determined using the Nessler method. The optimum substrate concentration was also determined. Urease activity inhibition was carried out using various metal solution concentrations, which continued by plotting a log graph of urea concentration vs. %inhibition. The obtained graph would then determine the metal concentration in a synthetic water sample. The data was then compared to the measurement, determined by the Atomic Absorption Spectrophotometry (AAS) method. Results of the study showed that the urease activity of D. zibethinus L.seeds was 296.774 U/mL. Urease activity was optimum at a urea concentration of 0.3 M. The comparison Cu, and Pb concentration determination using the urease inhibitory activity and AAS methods showed no significant difference at 95% confidence level. This research showed that urease of D. zibethinus L. seed could be used to determine Cu and Pb's concentration based on its inhibiting activity.
Adsorpsi Rhodamin B dengan Adsorben Kitosan Serbuk dan Beads Kitosan Mardiyah Kurniasih; Anung Riapanitra; Anas Rohadi
Sains dan Matematika Vol. 2 No. 2 (2014): April, Sains & Matematika
Publisher : Universitas Negeri Surabaya

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Abstract

Chitosan is a biopolymer that has adsorption ability toward dye substances due to its amino and hydroxyl functional groups. Thisstudy aimed to synthesize chitosan and chitosan beads from jerbung shrimp shell, and to test their adsorption ability on rhodamine Bdye. The chitosan and chitosan beads product of the synthesis were characterized using Fourier Transform Infra-Red Spectrophotometer(FTIR) as well as the determination of water content, ash content, and swelling effect. The adsorption ability of chitosan and chitosanbeads on rhodamine B was tested using the parameters of maximum wavelength as well as the effect of variation of pH and contact time.The results of the study showed that the synthesis gave result to chitosan and chitosan beads with water content of 4.45% and 6.84%, ashcontent of 0.1% and 2.83%, and the swelling effect of 143.43 and 94.05%, respectively. Chitosan and chitosan beads adsorb rhodamineB optimally at pH 4 and 3 with a contact time of 120 and 180 minutes, respectively at a maximum wavelength of 554.2 nm.
FOTOREDUKSI Cd (II) MENGGUNAKAN KATALIS TiO2 DENGAN SENSITIZER KLOROFIL YANG DIAKTIVASI SINAR MATAHARI Uyi Sulaeman; Kapti Riyani; Anung Riapanitra; Dyah Indriastuti
Molekul Vol 2, No 1 (2007)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (133.862 KB) | DOI: 10.20884/1.jm.2007.2.1.28

Abstract

The photoreduction of Cd (II) has been investigated using thin layer catalyst of titanium dioxide and chlorophyll as sensitizer. Thin layer catalyst could be prepared by sol gel method deposited on glass slide. The treatments of experimental are: TiO2 catalyst using chlorophyll without sunlight illumination, TiO2 catalyst using chlorophyll with sunlight illumination and TiO2 catalyst with sunlight illumination. The concentration of Cd (II) in the solution is monitored every 30 minutes until 150 minutes illuminations by atomic absorption spectroscopy. The results showed that concentration of Cd (II) decreased reached to 45,53 % in TiO2 catalyst using chlorophyll with sunlight illumination at pH 5 after 150 minutes illumination and it decreased reached to 34.07% at pH 7 after 120 minutes illumination. Addition the chlorophyll to TiO2 catalyst increased photoreduction activities.
PEMANFAATAN ARANG BATOK KELAPA DAN TANAH HUMUS BATURRADEN UNTUK MENURUNKAN KADAR LOGAM KROM (Cr) Anung Riapanitra; Roy Andreas
Molekul Vol 5, No 2 (2010)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (250.484 KB) | DOI: 10.20884/1.jm.2010.5.2.78

Abstract

Waste containing hazardous and toxic chemical compounds into the environment leads to water pollution, soil and air. These chemical compounds will endanger human life and environment. One type of compound that may pollute the environment is chromium. The metal is commonly found in industrial waste such as from exhaust and industrial wastewater from etal plating company.The purpose of this research is to utilize coconut shell charcoal and soil humus as a low-cost and ready-made alternative material to reduce the concentration chromium (Cr) on wastewater. Humus was taken from Baturraden region and was isolated using NaOH extraction and was furthermore purified using mixtures of HF(aq): HCl(aq). Coconut shell charcoal was produced and was mixed with the humus. Adsorption process was carried out by batch method on variations of charcoal: humus composition, pH, and contact time. Humus soil was identified using infrared spectrophotometry (IR). Determination of chromium concentration was performed using atomic absorption spectroscopy (AAS).The purified humus yielded was 25.92% (w/w), with 34.18% moisture, and ash content of 18.09%. The results showed that the variation of composition ratio of 2:1 charcoal and humus produced the greatest percent reduction of 18.20%, and the optimum pH for the adsorption is 9. For the variation of contacts time, the optimum reaction time is at 180minutes with decreasing concentration of Pb up to 56.07%.
PENENTUAN WAKTU KONTAK DAN pH OPTIMUM PENYERAPAN METILEN BIRU MENGGUNAKAN ABU SEKAM PADI Anung Riapanitra; Tien Setyaningtyas; Kapti Riyani
Molekul Vol 1, No 1 (2006)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (126.848 KB) | DOI: 10.20884/1.jm.2006.1.1.22

Abstract

Dyes are widely used for colouring in textile industries, significant losses occur during the manufacture and processing of the product, and these lost chemical are discharged in surrounding effluent. Adsorption of dyes is an effective technology for treatment of wastewater contaminated by the mismanaged of different types of dyes. In this research, we investigated the potential of rice husk ash for removal of methylene blue dyeing agent in aqueous system. The aim of this research is to find out the optimum contact time and pH on the adsorption of methylene blue using rice husk ash. Batch kinetics studies were carried out under varying experimental condition of contact time and pH. An adsorption equilibrium condition was reached within 10 minutes and the optimum condition for adsorption was at pH 3. The adsorption of methylene blue was decreasing with decreasing the solution pH value.
SINTESIS NANOKOMPOSIT POLIANILIN/ZnO DENGAN METODE POLIMERISASI ANTARMUKA DAN UJI AKTIVITAS FOTODEGRADASINYA TERHADAP RHODAMIN B PADA CAHAYA TAMPAK Muhamad Wisnu Nugroho; Anung Riapanitra; Ponco Iswanto
Molekul Vol 10, No 2 (2015)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (641.966 KB) | DOI: 10.20884/1.jm.2015.10.2.6

Abstract

Sintesis nanokomposit polianilin/ZnO (PANI/ZNO) secara polimerisasi antarmuka dan uji fotodegradasinya pada senyawa Rhodamin B telah dilakukan. Garam Emeraldine dari PANI dan nanokomposit PANI disintesis secara polimerisasi antarmuka menggunakan dua fase pelarut organik/air. Hasil sintesis dikarakterisasi transisi elektronnya secara spektroskopi UV-Vis dan gugus fungsi yang terbentuk secara spektrofotomeri FT-IR. Karaktersisasi menggunakan UV-Vis DRS menunjukkan bahwa PANI, PANI/ZnO 5% dan PANI/ZnO 10% memiliki nilai energi band gap sebesar 2,0 eV. Analisis secara SEM menunjukkan berkurangnya ukuran partikel seiring penambahan ZnO. Penentuan berat molekulPANI adilakukan menggunakan viskosimeter Ostwald menunjukkan berat molekul PANI sebesar 2835,03 g/mol. Uji fotodegradasi pada lampu tungsten selam 240 menit mendapatkan hasil penurunan konsentrasi Rhodamin B berturut-turut sebesar 67.9% 85.09% and 80.24% untuk  PANI, PANI/ZnO 5% dan PANI/ZnO 10%
Pelatihan Uji Formalin Menggunakan Smartphone dan Scanner untuk Siswa SMA Amin Fatoni; Mekar Dwi Anggraeni; Anung Riapanitra; Zusfahair Zusfahair
Darma Sabha Cendekia Vol 3 No 3 (2021): Darma Sabha Cendekia - November 2021
Publisher : Pasca Sarjana | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (438.058 KB) | DOI: 10.20884/1.dsc.2021.3.3.5000

Abstract

Sekolah Menengah Atas (SMA) sudah mengajarkan pembelajaran kimia, namun demikian, belum semua melaksanakan praktikum untuk lebih memahami ilmu kimia, karena keterbatasan saran terutama alat dan petunjuk praktikumnya. Keterbatasan instrumentasi yang mahal memicu para peneliti untuk memanfaatkan alat-alat sederhana disekitar kita seperti kamera smartphone, kamera poket, kamera DSLR dan alat pemindai dokumen (scanner) sebagai alternatif instrumentasi kimia. Kegiatan Pengabdian masyarakat ini dikenalkan teori untuk meningkatkan pengetahuan siswa dan praktik untuk meningkatkan keterampilan siswa tentang penggunaan kamera smartphone dan scanner sebagai alat analisis kadar formalin. Hasil kegiatan pengabdian kepada masyarakat menunjukkan pemberian materi menunjukkan peningkatan pengetahuan dari skor rata-rata 68 menjadi 80, sedangkan praktikum dikelas memberikan peningkatan pengetahuan alat, bahan dan prosedur analisis kimia menggunakan smartphonedan scanner dari skor rata-rata 54,7 menjadi 86
Ointment Formulation of Arumanis Mango (Mangifera indica L.) Leaf Extract with Chitosan Tripoliphosphate Matrix as Antibacterial Dian Riana Ningsih; Anung Riapanitra; Zusfahair Zusfahair; Uyi Sulaeman; Istinganatun Khoeriyah
Molekul Vol 18 No 1 (2023)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2023.18.1.5725

Abstract

This report presented the synthesis of Arumanis mango (Mangifera indica L.) leaf extract with chitosan tripolyphosphate matrix and its antibacterial activity. This research aimed to obtain an ointment formulation from mango leaf extract with chitosan tripolyphosphate matrix, to figure out the characteristics, including the particle morphology, and to determine the optimum formulation and the characterization of the antibacterial ointment. The research showed that extract morphology with chitosan tripolyphosphate was uneven-edge aggregates. Antibacterial tests were conducted on P. acnes and E. coli bacteria. The formula giving the greatest antibacterial activity was further utilized for the ointment preparations and then was characterized for 16 days. Formula C (chitosan and NaTPP 1: 0.0992(%)) gave the most excellent inhibition zone for P. acnes and E. Coli bacteria, at 7.94 mm and 10.02 mm, respectively. The obtained ointment preparation was white color homogeneous semi-solid with protective properties. The spreading power of the ointment was 5.25 – 6.25 cm, with the adhesive power of 1 – 5 seconds and pH of 6.0 – 6.4. The ointment's antibacterial activity was tested against P. acnes and E. coli bacteria using the formation of inhibition zone method. The activity of ointment prepared on day one against P. acnes and E. coli was at 14.03 mm and 14.24 mm, respectively, while the activity on day 16 against P. acnes and E. coli was at 9.33 mm and 9.98 mm, respectively.
Co-Authors Agus Soleh Alfa Marcorius Alifia, Zaskia Amaliana Sulistyowati, Alin AMIN FATONI Anas Rohadi Anas Rohadi Arieveali, Heroldinho Dian Riana Ningsih Dyah Indriastuti Febiyanto Febiyanto Fitriyani, Devi Ayu Ghinatanitha Haqqu Haryadinaru Hartiwi Diastuti Haryadinaru, Ghinatanitha Haqqu Haryanto, Michael Julian Istinganatun Khoeriyah Kapti Riyani Kapti Riyani Kapti Riyani Mardiyah Kurniasih Mardiyah Kurniasih Mekar Dwi Anggraeni Mohammad Afif Muhamad Wisnu Nugroho Muhammad Sofi Khoerul Amal Ponco Iswanto Qonita Yusry, Azwinda Richo Dwi Permadi Roy Andreas Shu Yin Sukma Sewiji Tien Setyaningtyas Tien Setyaningtyas Tien Setyaningtyas Uyi Sulaeman Uyi Sulaeman Uyi Sulaeman Uyi Sulaeman Uyi Sulaeman Zusfahair Zusfahair