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Activated Carbon from Plantain Stems as NO2ˉ and Mn2+ Adsorbent on Well Water Betsy Felita; Cucun Alep Riyanto; Yohanes Martono
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 1 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Waste contamination in the environment can not be avoided in water, even though water is the main necessity for living things. Contaminants that are too high such as nitrites and manganese will have a negative impact if consumed continuously. In this research, the synthesis of activated carbon from Plantain stems as an adsorbent for nitrite (NO2ˉ) and manganese (Mn2+)contaminants has been carried out. Synthesis of activated carbon from Plantain stem (ACPS) was carried out with a carbon: H3PO4 impregnation ratio of 1:6 (w/w) and heating using a furnace at 600 oC for an hour. Characterization of ACPS using an Infrared Spectrophotometer showed the presence of functional groups C-H, C = H, C≡C, C-O, P-O, and C-NH3+ or P-H bonds. The results of characterization by XRD showed that the ACPS was amorphous but little crystalline. In the adsorption study, the adsorption isotherms of ACPS on NO2ˉ and Mn2+ ions followed the Redlich-Peterson isotherm with R2 values of 0.9968 and 0.4753, respectively. The adsorption kinetics of ACPS on NO2ˉ and Mn2+ ions followed the Diffusion Intraparticle model with R2 values of 0.8585 for NO2ˉ ions and Pseudo Second Order with R2 values of 0.9482 for Mn2+ ions. In the study of the adsorption efficiency of NO2ˉ and Mn2+ ions using ACPS on well water in the Guyangan Jepara villages, it was found that the reduction efficiency was 15%, only at NO2ˉ ion levels.

Optimasi Ekstraksi Protoporphyrin-IX dari Kerabang Telur Puyuh (Coturnix Coturnix L.) Harry Setiawan; Cucun Alep Riyanto; Dewi K.A.K. Hastuti; Yohanes Martono
EduChemia (Jurnal Kimia dan Pendidikan) Vol 3, No 1 (2018)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Industri tekstil banyak menggunakan pewarna sintetik karena mudah dalam pewarnaan dan murah, tetapi memiliki dampak yang buruk bagi lingkungan sekitar. Kesadaran akan pentingnya menjaga lingkungan membuat peusahaan tekstil mencoba kembali menggunakan pewarna alami. Kerabang telur puyuh memiliki protoporphyrin IX yang dapat digunakan sebagai pewarna. Kondisi optimum ekstraksi protoporphyrin IX dari kerabang telur puyuh perlu diteliti lebih lagi ditinjau dari komposisi pelarut, metode, dan siklus ekstraksi. Kerabang telur puyuh dikeringkan kemudian diekstraksi menggunakan pelarut metanol 96% dan HCl (v/v) (HCl(p) dan HCl 5%, v/v) dengan metode maserasi dan ultrasonik. Siklus ekstraksi dioptimalkan dengan variasi hingga 5 siklus. Penetapan kadar protoporphyrin dilakukan dengan menggunakan spektroskopi UV-VIS berdasarkan persamaan Lambert-Beer. Ekstrak difraksinasi menggunakan klorofom dengan rasio 1 : 2 v/v (klorofom : ekstrak). Fase organik dipindai dengan menggunakan spektrofotometer UV-Vis. Hasil penelitian menunjukkan bahwa ekstrak kerabang telur puyuh mengandung protoporphyrin IX, terlihat dari hasil spektra yang cocok dengan spektra protoporphyrin standard. Kondisi ekstraksi protoporphyrin yang optimum didapatkan dengan menggunakan pelarut metanol 96% dan HCl(p) 5% (v/v) secara maserasi. Siklus ekstraksi protoporphyrin yang optimal adalah 3 siklus dengan kadar protoporphyrin dalam ekstrak adalah 1,92 ×10-2 % b/b.

The Determination of Metals and Minerals Contains in The Water of Pucung River, Prehistoric Site Sangiran, Central of Java Agung Rimayanto Gintu; Cucun Alep Riyanto; Widhi Handayani; Andri Purnomo; Stefanus Agung Wicaksono
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 1 (2019): 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.v4i1.25250

Sangiran was an important prehistoric site heritage for Indonesia. Entire site area was living environment once pass by several rivers, one of them was Pucung river. This study was approaching study from water environment by measuring metals and minerals contained in the water from Pucung river and measured that Iron (Fe) containend was 0,01mg/L; Zink (Zn) 0,02mg/L; Nickel (Ni) 0,00mg/L; Mangan (Mn) 0,00mg/L; Chrom (VI) (Cr6+) 0,009mg/L; Aluminium (III) (Al3+) 0,00mg/L and Copper (Cu) 0,01mg/L. From the minerals containing measured that Phosphate (PO4) 0,37mg/L; Nitrate (NO3-) 0,8mg/L; Nitrite (NO2-) 0,001mg/L; Chloride (Cl-) 0,01mg/L; Fluoride (F-) 0,00mg/L; Sulphide (S2-) 0,0µg/L; Sulphate (SO42-) 6,00mg/L; and N as N-NH3 (Ammonia) 0,05mg/L. This studi continuing the study before wich are just limiting to studying the river stratigraphy..

Karakterisasi Karbon Aktif Kulit Singkong (Manihot esculenta Crantz) Berdasarkan Variasi Konsentrasi H3PO4 dan Lama Waktu Aktivasi Fahmi Puteri Perdani; Cucun Alep Riyanto; Yohanes Martono
Indonesian Journal of Chemical Analysis (IJCA) Vol. 4 No. 2 (2021): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol4.iss2.art4

Unsur karbon yang cukup tinggi pada kulit singkong membuat peneliti memanfaatkannya sebagai karbon aktif. Tujuan penelitian ini adalahmenentukan karakteristik karbon aktif kulit singkong (KASP) berdasarkan konsentrasi H3PO4 dan lama waktu aktivasi pada suhu 600 °C. Sintesis KASP menggunakan tahap karbonisasi pada suhu 500 °C, impregnasi menggunakan karbon:H3PO4 1:5 (b/b) dengan variasi konsentrasi yaitu pada 10-50%, aktivasi pada suhu 600 °C selama 2 jam. KASP dengan konsentrasi optimal kemudian diaktivasi menggunakan variasi waktu 1-3 jam pada suhu 600 °C. Selanjutnya KASP dikarakterisasi menggunakan FTIR, XRD, dan SEM-EDX. Morfologi permukaan KASP menunjukkan permukaan yang berongga yang dominasi oleh unsur C(55,20%), O(28,86%), N(8,00%), P(6,22%), dan Na(1,72%).

Activated Carbon from Sugarcane (Saccharum officinarum L.) Bagasse for Removal Ca2+ and Mg2+ Ion from Well Water Ira Tyas Kurniasari; Cucun Alep Riyanto; Yohanes Martono
Stannum : Jurnal Sains dan Terapan Kimia Vol 2 No 2 (2020): Oktober 2020
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v2i2.1877

Humans need water with good quality to fulfill their needs. Water with high hardness content will have a bad impact if consumed continuously, so the adsorption method is carried out to reduce the concentration of Ca2+ and Mg2+ ions. The adsorption process uses sugarcane bagasse activated carbon (SBAC) and the tested water sample is well water in District Jati, Kudus. Synthesis of SBAC was conducted with H3PO4 30% as an activator at an impregnation ratio of 1:5 (w/w) at temperature 700°C. The FTIR result showed that SBAC contains O-H, C-H, C=C, C≡C, and C-O as functional groups. Analysis result with the XRD instrument showed that the microstructure of SBAC that is formed is turbostatic structure and amorphous. Modeling isotherm suitable for SBAC adsorption on Ca2+ ions is Langmuir isotherm where the R2 value is 0.9134 which shows that the adsorption process occurs chemically and monolayer. Modeling isotherm suitable for SBAC adsorption on Mg2+ ions is Elovich isotherm where the R2 value is 0.8638 which means that the adsorption process is multilayer and adsorption in non-ideal conditions. Modeling kinetics suitable for SBAC adsorption on Ca2+ and Mg2+ ions is Pseudo Orde 2 where the R2 value is 0.9395 and 0.7274. Percent efficiency value of sugarcane activated carbon adsorption of Ca2+ dan Mg2+ ions on District Jati, Kudus well water is 14.44% and 8.94% and 40 minutes stirring time.

Characterization of Cassava (Manihot esculenta Crantz) Peel Activated Carbon based on Impregnation Ratio and Activation Temperature Blessy Yemima Andiani; Cucun Alep Riyanto; Yohanes Martono
Stannum : Jurnal Sains dan Terapan Kimia Vol 4 No 1 (2022): April 2022
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v4i1.2533

Cassava peel is a natural material that is still underutilized even though has the potential as an alternative to activated carbon precursors. In the synthesis of activated carbon, the impregnation ratio and activation temperature are important factors that affect the characteristics of the activated carbon produced. This study aims to determine the effect of variations in the impregnation ratio (carbon: H3PO4) and activation temperature on the characteristics of activated carbon from cassava peel (CPAC) and to determine the optimal conditions in the manufacture of CPAC. In this study, CPAC was produced by treatment with various impregnation ratios of 1:5, 1:6, 1:8, 1:10, and 1:12 (w/w, carbon: H3PO4 30%) and a range activation temperature variation of 400 - 800 °C in the furnace for 60 minutes. The CPAC results were analyzed using FTIR, XRD, and SEM-EDX instruments. Based on the results of the FTIR test, it is showed that the characteristics of CPAC contain functional groups O–H, C–H, C≡C, C=C, C–O/P=O with an impregnation ratio of 1:6 (w/w, carbon: H3PO4 30%) and an activation temperature of 500 °C for 60 minutes to be the optimal conditions in the production of CPAC. The CPAC has an amorphous crystalline character based on XRD analysis and a hollow (porous) surface based on SEM analysis. The results of the EDX test showed that CPAC consisted of the elements carbon (C), oxygen (O), nitrogen (N), phosphate (P), sodium (Na) with the respective percentages being 72.60%, 15.52%, 10 .32%, 1.09%, and 0.47% respectively.

Characterization of Cassava (Manihot esculenta Crantz) Peel Activated Carbon based on Impregnation Ratio and Activation Temperature Blessy Yemima Andiani; Cucun Alep Riyanto; Yohanes Martono
Stannum : Jurnal Sains dan Terapan Kimia Vol 4 No 1 (2022): April 2022
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v4i1.2533

Cassava peel is a natural material that is still underutilized even though has the potential as an alternative to activated carbon precursors. In the synthesis of activated carbon, the impregnation ratio and activation temperature are important factors that affect the characteristics of the activated carbon produced. This study aims to determine the effect of variations in the impregnation ratio (carbon: H3PO4) and activation temperature on the characteristics of activated carbon from cassava peel (CPAC) and to determine the optimal conditions in the manufacture of CPAC. In this study, CPAC was produced by treatment with various impregnation ratios of 1:5, 1:6, 1:8, 1:10, and 1:12 (w/w, carbon: H3PO4 30%) and a range activation temperature variation of 400 - 800 °C in the furnace for 60 minutes. The CPAC results were analyzed using FTIR, XRD, and SEM-EDX instruments. Based on the results of the FTIR test, it is showed that the characteristics of CPAC contain functional groups O–H, C–H, C≡C, C=C, C–O/P=O with an impregnation ratio of 1:6 (w/w, carbon: H3PO4 30%) and an activation temperature of 500 °C for 60 minutes to be the optimal conditions in the production of CPAC. The CPAC has an amorphous crystalline character based on XRD analysis and a hollow (porous) surface based on SEM analysis. The results of the EDX test showed that CPAC consisted of the elements carbon (C), oxygen (O), nitrogen (N), phosphate (P), sodium (Na) with the respective percentages being 72.60%, 15.52%, 10 .32%, 1.09%, and 0.47% respectively.

Characterization of Cassava (Manihot esculenta Crantz) Peel Activated Carbon based on Impregnation Ratio and Activation Temperature Blessy Yemima Andiani; Cucun Alep Riyanto; Yohanes Martono
Stannum : Jurnal Sains dan Terapan Kimia Vol 4 No 1 (2022): April 2022
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v4i1.2533

Cassava peel is a natural material that is still underutilized even though has the potential as an alternative to activated carbon precursors. In the synthesis of activated carbon, the impregnation ratio and activation temperature are important factors that affect the characteristics of the activated carbon produced. This study aims to determine the effect of variations in the impregnation ratio (carbon: H3PO4) and activation temperature on the characteristics of activated carbon from cassava peel (CPAC) and to determine the optimal conditions in the manufacture of CPAC. In this study, CPAC was produced by treatment with various impregnation ratios of 1:5, 1:6, 1:8, 1:10, and 1:12 (w/w, carbon: H3PO4 30%) and a range activation temperature variation of 400 - 800 °C in the furnace for 60 minutes. The CPAC results were analyzed using FTIR, XRD, and SEM-EDX instruments. Based on the results of the FTIR test, it is showed that the characteristics of CPAC contain functional groups O–H, C–H, C≡C, C=C, C–O/P=O with an impregnation ratio of 1:6 (w/w, carbon: H3PO4 30%) and an activation temperature of 500 °C for 60 minutes to be the optimal conditions in the production of CPAC. The CPAC has an amorphous crystalline character based on XRD analysis and a hollow (porous) surface based on SEM analysis. The results of the EDX test showed that CPAC consisted of the elements carbon (C), oxygen (O), nitrogen (N), phosphate (P), sodium (Na) with the respective percentages being 72.60%, 15.52%, 10 .32%, 1.09%, and 0.47% respectively.

Studi Kinetika dan Isoterm Adsorpsi Ion Fe (III) dan Mn (II) pada Karbon Aktif Batang Eceng Gondok Cucun Alep Riyanto; Bereka Meidelivia Raharjianti; November Rianto Aminu
Jurnal Riset Teknologi Industri Vol.15 No.1 Juni 2021
Publisher : Balai Riset dan Standardisasi Industri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26578/jrti.v15i1.6633

Batang Eceng Gondok (BEG) (Eichhornia crassipes) mengandung senyawa lignoselulosa yang dapat dimanfaatkan sebagai bahan baku pembuatan karbon aktif dengan biaya rendah dan terbarukan. Penggunaan karbon aktif dari BEG sebagai adsorben berpotensi menurunkan konsentrasi logam berat, seperti ion Fe(III) dan Mn(II). Tujuan penelitian ini adalah menentukan pemodelan kinetika dan isoterm adsorpsi karbon aktif BEG pada ion Fe(III) dan Mn(II), serta menentukan efisiensi penurunan kadar ion Fe(III) dan Mn(II) menggunakan karbon aktif BEG pada air sumur di desa Guyangan Kabupaten Jepara. Metode sintesis karbon aktif BEG dilakukan dengan proses karbonisasi pada suhu 400℃ selama 60 menit lalu dilanjutkan aktivasi kimia menggunakan H3PO4 30% pada rasio impregnasi karbon: H3PO4 (1:4, b/b) selama 24 jam serta aktivasi fisika pada suhu 600℃ selama 60 menit. Hasil penelitian menunjukkan bahwa adsorpsi karbon aktif BEG pada ion Fe(III) dan Mn(II) mengikuti pemodelan isoterm Redlich-Peterson dengan nilai R2 berturutan adalah 0,9386 dan 0,9982. Pemodelan kinetika adsorpsi karbon aktif BEG pada ion Fe(III) dan Mn(II) mengikuti pemodelan Pseudo Orde Dua dengan nilai kapasitas adsorpsi masing-masing sebesar 32,7869 mg/g dan 1,4166 mg/g. Nilai % efisiensi adsorpsi ion Fe(III) dan Mn(II) menggunakan karbon aktif BEG pada air sumur di desa Guyangan Kabupaten Jepara sebesar 23,37% dan 79,25%. Kata kunci : adsorpsi, batang eceng gondok, isoterm, karbon aktif, kinetika

Pendidikan Dan Penyuluhan Kepada Masyarakat Desa Kalikurmo Kecamatan Bringin Kabupaten Semarang Hartati Soetjipto; Cucun Alep Riyanto; Teresa Febriyanti; Yoga Andika Putra; Mitra Krisdayanti; Laili Nurrohmah
Magistrorum et Scholarium: Jurnal Pengabdian Masyarakat Vol 1 No 1 (2020)
Publisher : Universitas Kristen Satya Wacana Salatiga

Kegiatan Pengabdian kepada Masyarakat ini ditujukan untuk peningkatan kualitas pengajaran dan pembelajaran anak-anak SD Desa Kalikurmo, Kecamatan Beringin, Kabupaten Semarang dalam bidang IPA dan matematika. Desa Kalikurmo memiliki sumber daya manusia yang memiliki latar pendidikan yang rendah, sehingga para warganya memiliki wawasan yang minim dan kurang berkembang. Hal ini menyebabkan kami tergerak dalam memberikan penyuluhan kepada warga Desa Kalikurmo yang sekiranya bisa membantu menambah wawasan dan pengetahuan mereka. Kegiatan dilaksanakan dalam bentuk membantu pengajaran di kelas dan bimbingan belajar di luar jam pelajaran. Anak-anak sekolah tingkat SD terbantu dalam pendalaman materi IPA dan Matematika dengan adanya kegiatan ini.

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