cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Surjani Wonorahardjo
Contact Email
publisher@um.ac.id
Phone
-
Journal Mail Official
jct.journal@um.ac.id
Editorial Address
Jl. Semarang, No. 5
Location
Kota malang,
Jawa timur
INDONESIA
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya
Published by Universitas Negeri Malang
ISSN : 25496565     EISSN : 25496573     DOI : 10.17966
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
JC-T (Journal Cis-Trans) : jurnal kimia dan terapannya is published by Universitas Negeri Malang, Faculty of Mathematics and Science, Chemistry Department.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 101 Documents
 4   5   6   7   8 
Fraksi Aktivitas Produk dan Teoritis bagi 192Ir Sebagai Sumber Radiasi Mikro-Kapsul Brakiterapi Sriyono; Moch. Subechi; Anung Pujiyanto; Hambali; Abidin
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 3 No. 2 (2019)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v3i22019p007

Abstract

Brachytherapy is a type of radiotherapy used to treat prostate, cervical, breast and other cancers. As a radiation source, iridium-192 radioisotope is packaged in micro-capsules of 316L stainless steel with an inner diameter of 0.6 mm; an outer diameter of 1.2 mm and a length of 4.5 mm known as a high dose rate brachytherapy. Iridium-192 is a beta transmitter radioisotope with energies of 530 - 670 keV and also emits gamma radiation (γ) at average energy of 370 keV with a half-life (t½) of 73.83 days. The iridium-192 was produced from irradiation of the natural iridium wire target in nuclear reactor. The aim of this study is to determine the maximum irradiation time in order to obtain Ir-192 radioactivity in the amount of 10 Ci which meets the requirements for high dose rate brachytherapy. The irradiation of2 pieces of 99.9% natural iridium wire has been carried out in the G.A. Siwabessy reactor for ± 4 months with a 1.2 x 1014 n/cm2/second neutron flux. 
Membran Padat Kitosan-Silika-PEG sebagai Membran Pemisah Ion Logam Bivalen dan Rhodamin B pada Limbah Cair Industri Tekstil F. Widhi Mahatmanti; E. Kusumastuti; W. D. P. Rengga
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 3 No. 2 (2019)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v3i22019p012

Abstract

The use of membrane on separation has been widely studied. In this study, the Chitosan-silicapolyethylene glycol (Ch/Si/P) solid membrane is prepared and performed adsorption test for bivalent metal ions, including Pb(II), Cu(II), and Cd(II), and Rhodamine B dye in textile waste water. The Ch/Si/P composite membrane is made by mixing of chitosan, silica (extracted from ash hulk) and polyethylene glycol with ratio 1: 0.8: 0.5 (w/w). The performance of membrane is carried out using dead end method. The result shows that membrane has a heteregenous and very tight structure. On the other hand, commercial membrane shows a fibrous structure. The rejection test shows that the selectivity of Ch/Si/P solid membrane increases from Cu(II)> Cd(II)> Pb(II)> Rhodamine B. In comparison, the commercial membrane shows the selectivity in the sequence of Rhodamine B > Pb(II) > Cd(II) > Cu(II). It is clearly observed that Ch/Si/P solid membrane for bivalen metal ions is better than commercially available, and it indicates that functional group spread on the surface acts as a binding site.
Dekomposisi Termal Pirolisis terhadap Rendemen dan Komposisi Senyawa Kimia dalam Asap Cair Kulit Buah Kakao Mohammad Wijaya; Muhammad Wiharto; Army Auliah
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 3 No. 2 (2019)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v3i22019p018

Abstract

Cocoa plants are obtained from existing cocoa plantations in Enrekang Regency, South Sulawesi. Where cacao fruit produces cocoa pods that are discarded, scattered and black in colour for a long time will undergo a process of decay, even though it has considerable potential. The results of cocoa processing produce cocoa waste. with the use of pyrolysis technology. analysis of lignin content of cocoa pods from Enrekang Regency was 45.61%, cellulose was 37.61%, hemicellulose was 6.40%, and other was 10.38%. The result of this combustion produced liquid smoke of cocoa pods into distillates, charcoal. In this study, pyrolysis temperature 112-512 ° C was used. The yield of liquid smoke of cocoa pods in Enrekang Regency at a pyrolysis temperature of 114 °C was 8.04% with a time of 88 minutes, and at pyrolysis temperature 214 °C at 28.62% with time for 40 minutes, then at pyrolysis temperature 314 °C at 27.65% with time for 83 minutes, and pyrolysis temperature 414▫ C at 25.08% with time over 45 minutes, finally the pyrolysis temperature of 514 °C was 8.04% with a time of 88 minutes.
Pembuatan Katalis CuO-ZnO dengan Penyangga gamma-Al2O3 untuk Transesterifikasi Minyak Biji Kapuk (Ceiba Pentandra L.) Wahyu Dwi Prasetiyo; Angga Kafidhu; Nyoman Puspa Asri
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 3 No. 2 (2019)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v3i22019p025

Abstract

Biodiesel is a promising energy alternative to substitute fossil fuels. Another reason is the productionprocess using a homogeneous catalyst that has many disadvantages. Raw materials using palm oils which is expensive, also compete with the food industry. Heterogeneous catalyst substitution of homogeneous catalysts and using kapok seed oil as raw material is a promising strategy for mass biodiesel production. This research focuses on developing heterogeneous catalyst CuO-ZnO buffered γ-Al2O3 for transesterification of kapok seed oil. We concern about the effect of calcination temperature and CuO loading. Catalyst synthesis using the sol-gel method. Catalyst characterization by X-ray diffraction (XRD) method, scanning electron microscope-EDX (SEM-EDX) and Brunnauer-Emmet Teller (BET). The catalyst activity test was applied to the transesterification of kapok seed oil with methanol in glass type batch reactor. CuO-ZnO/γ-Al2O3 was successfully synthesized quite well and potentially could be used as heterogeneous catalyst from kapok seed oil.
Sintesis dan Karakterisasi Seed Keramik Samarium untuk Terapi Solid Kanker Daya Agung S; Witarti; Mujinah; Dede Kurniasih
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p001

Abstract

The development of Samarium-based bioceramics, in the form of a seed, has the opportunity of solidcancers treatment using the brachytherapy method. Brachytherapy is a radiotherapy procedure whereradioactive sources is placed inside to theneo-plastic cancer tissues by implantation. This method canincrease radiation doses on the cancer tissues by applying a tiny radiation source. The ceramic seeds with Samarium-153, is biodegradable and beta-emitter radionuclide, is very likely to replace existing method of brachytherapy using radioactive metal-seeds. The raw material of ceramic seeds with samarium consists of samarium nitrate as samarium precursor and isotope target, calcium nitrate hydrate (Ca(NO3)2.4H2O as filler, and tetraethyl orthosilicate (Si(OC2H5)4 as a additive. Synthesis of ceramic seeds with samarium was conducted by sol gelprocesings, sintering, mixing with Polivynil Alcohol (PVA), molding and combusting. The raw material mixtures of ceramic seeds with samarium is characterized by thermogravimetry analysis (TGA). The morphology of ceramic seed both before and after combustion is analyzed by scanning electron microscope (SEM-EDX) and X-ray fluorescence (XRF). Based on TGA analysis. The raw materials mixtures of the ceramic seeds was decomposed at temperature of 100 oC - 550 oC. 
Aktivitas Ekstrak Kulit Jeruk Manis sebagai Antioksidan dan Toksisitasnya Terhadap Artemia Salina Siti Marfu’ah; Fauziatul Fajaroh; Wildan Alfin Romadhona; Della Dwi Taufina
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p007

Abstract

Antioxidant test of sweet orange (Citrus Sinensis L.) peel extract in ethanol has been carried out.To reduce ethanol waste, ethanol-water was used as the solvent. The extract was tested for its antioxidant activity and toxicity. The purpose of this study was to determine the extract of sweet orange peel on: (1) yield (2) main components (3) antioxidant activity, (4) toxicity. This research was carried out in several stages: macerate sweet orange peel in ethanol (96%), ethanol (96%)-water (2v: 1v), ethanol (96%)-water (1v: 1v), analysis of extract’s main components by GC-MS, test its antioxidant activity with DPPH, its toxicity against Artemia salina. From this research, it was found that for ethanol (96%) extract: yield 2,67%; main components: hexamethoxiflavone, 4H-1-benzopyran-4-on, hexadecanoic acid, octnearrien1-ol, terasiloxane; strong active antioxidant (IC50 = 16,0306 ppm), toxic to Artemia salina (LC50 = 281,1900 ppm). For ethanol (96%)-water (2v: 1v) as solvent: yield 2.61%; main components: sucrose, sorbose, ferulic acid, 9,11,15-octnearrien-1-ol, 9-octadesenamid; strong active antioxidant (IC50 =14.3716 ppm), toxic to Artemia salina (LC50 = 337.2097 ppm). 
Analisis Kandungan Cemaran Logam Berat Kromium pada Anak Sungai Citanduy Kota Tasikmalaya Estin Nofiyanti; Ayu Erviena; Gatut Ari Wardani; Nurcholis Salman
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p015

Abstract

Citanduy is one of the rivers affected by human activities, where the Citanduy tributary in Cigeureung,Cipedes District, Tasikmalaya City, has long been polluted by domestic activities such as batik industry of UKM. This research was to determine the burden of water pollution in the Citanduy tributaries. Sampling was carried out by purposive sampling using the storet method. Sampling was done with a distance of each point as far as 1 km for 3 sampling points, namely Parakanyasag Village coordinate 7017 '46.4 "S 108 ° 13'04.3" E with areas dominated by rice fields without industry. The second point in the Village of Cicariuk at coordinates 7 ° 18'08.9 "S 108 ° 13'07.4" E, this point is the central point of the batik industry in Cigeureung. The third point is in Gg. Buninagara Mosque with coordinates 7 ° 18'42.7 "S 108 ° 12'58.9" E. Laboratory testing results showed that the COD value at first point is 107 mg / L with Cr concentration of 0.007 mg / L, at the second point the COD value is 2 mg / L with Cr concentration of 0.010 mg / L, and the third point COD is 4 mg / L.
Isolasi Lignin dari Sekam Padi (Oriza Sativa L) Serta Pemanfaatanya Sebagai Adsorben Ion Cd(II) Yudhi Utomo; Ernis Nor Fadila
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p019

Abstract

Rice husk is an agricultural waste and contains lignin (20-25%). NaOH, ethanol and acetic acid solvents are commonly used solvents in lignin isolation because they produce sulfur-free and high purity lignin. Lignin has potential as an adsorbent due to the presence of hydroxyl groups and aromatic rings that can bind to metal ions. The purpose of this study was to find out the best solvent in isolating lignin from rice husks, the characteristics of lignin, and the ability of lignin from rice husks as an adsorbent of Cd (II) metal. The quantitative laboratory research conducted was lignin characterization using FTIR and SEM and test the ability of the adorbent to absorb Cd (II) ions using the AAS instrument. Lignin isolated using NaOH solvent is more effective and efficient because it produces large amounts of lignin compared to ethanol and acetic acid. The isolated lignin has an absorption band in the area of 3500-3200 cm-1, namely the O-H stretch and 1600 cm-1, namely the vibrations of the aromatic and has spherical surface morphology in SEM instrumentation. Lignin was applied as a Cd (II) adsorbent and had the greatest adsorption capacity of A and B at a concentration of 2.0 ppm.
Pengaruh Komposisi SiO2/Al2O3 dalam Sintesis ZSM-5 (Zeolite Socony Mobile-5) Bersumber Silika Pasir Pantai Lokal Sumari; Suryani Indah Permatasari; Lailatul Ilmiyah; Fauziatul Fajaroh; Yahmin; Ida Bagus Suryadharma
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 4 No. 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v4i22020p027

Abstract

Beach sand in Indonesia contains high silica crystals in the form of SiO2. High purity silica can be usedas a raw material for zeolite synthesis, one of them is ZSM-5 (Zeolite Socony Mobile-5). ZSM-5 can be used as a catalyst because it has advantages in structure and temperature resistance. Therefore, ZSM-5 is expensive so that if it can be synthesized by ourselves, it is very profitable. The research aims to determine the effect of the composition of SiO2 / Al2O3 in synthesis of ZSM-5 from beach sand silica. The research was done in 3 stages consist of (1) purification of beach sand, (2) extraction of beach sand silica, and (3) synthesis of ZSM-5. The results of the research showed that (1) the purity of extracted silica was 97.2%, (2) the composition of Si87Al9 resulted ZSM-5 better than that of Si89Al7.
Hidrogen dari Reaksi Pemecahan Air Menggunakan Aluminium dengan Katalis Basa Abu Tandan Kosong Sawit Syahrul Khairi; Erlindawati; Triandi Kuseno; Marcelina; M. Khalid Syafrianto
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 5 No. 2 (2021)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v5i22021p001

Abstract

The potential of palm empty fruit bunch (EFB) ash as a base catalyst for hydrogen production fromhydrolysis of water with Aluminium has been inverstigated by using a simple hand-made reactor. This study was preceded by using conventional bases, NaOH and KOH, then compared with the use of K2CO3 and EFB ash as catalysts. The catalyst was prepared by ashing the EFB at 600oC for 2 h. Characterization of catalyst was conducted by X-Ray Diffraction (XRD) and Atomic Absorption Spectroscopy (AAS) methods. EFB ash contains potassium in K2CO3 and KCl form, with total potassium of 29.3% by weight. Water hydrolysis was carried out by reacting 0.01 g of Aluminum with various concentrations of KOH, NaOH, K2CO3 solutions, and EFB ash filtrates. The increasing of catalysts concentration caused the enhancement of hydrogen gas produced. The highest conversion of hydrolysis reaction was obtained by the application of KOH as a catalyst. The utilization of NaOH leads the reaction faster. K2CO3 and EFB ash filtrate also can be used to produce hydrogen with a high enough quantity but slower.

Page 6 of 11 | Total Record : 101

 4   5   6   7   8 

Filter by Year

2017 2026


Reset
Filter By Issues
All Issue Vol. 10 No. 2 (2026): In Progress Vol. 10 No. 1 (2026) Article in Press Vol. 9 No. 2 (2025) Vol. 9 No. 1 (2025) Vol. 8 No. 2 (2024) Vol. 8 No. 1 (2024) Vol. 7 No. 2 (2023) Vol. 7 No. 1 (2023) Vol. 6 No. 2 (2022) Vol. 6 No. 1 (2022) Vol. 5 No. 2 (2021) Vol. 5 No. 1 (2021) Vol. 4 No. 2 (2020) Vol. 4 No. 1 (2020) Vol. 3 No. 2 (2019) Vol. 3 No. 1 (2019) Vol. 2 No. 2 (2018) Vol. 2 No. 1 (2018) Vol. 1 No. 2 (2017) Vol. 1 No. 1 (2017) More Issue