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Aplikasi Sistem Kontinyu Menggunakan Karbon Aktif untuk Penurunan Kadar Logam Cu dan Zn dalam Air Limbah Susila Kristianingrum; Sulistyani Sulistyani; Annisa Fillaeli; Endang Dwi Siswani; Nur Hasna Nafiisah
Jurnal Sains Dasar Vol 9, No 2 (2020): October 2020
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jsd.v9i2.38965

Abstract

Penelitian ini bertujuan untuk mengetahui variasi massa adsorben dan laju alir yang paling optimum, efisiensi penjerapan (Ep), kapasitas adsorpsi paling tinggi, serta tipe adsorpsi dari karbon aktif teraktivasi ZnCl2 terhadap penyerapan logam Cu dan Zn dalam limbah simulasi menggunakan sistem kolom kontinyu. Metode adsorpsi logam Cu dan Zn dilakukan secara kontinyu dengan menggunakan kolom. Limbah simulasi dialirkan secara gravitasi dari atas ke bawah melalui kolom yang telah diisi adsorben. Subjek dalam penelitian ini adalah karbon aktif dari daun pandan laut teraktivasi ZnCl2 5%. Sementara objek pada penelitian ini adalah efisiensi adsorpsi, kapasitas adsorpsi, dan tipe adsorpsi dari adsorben daun pandan laut teraktivasi ZnCl2 5% terhadap logam Cu dan Zn. Analisis kandungan logam Cumenggunakan Spektrofotometer UV-Visible dan logam Znmenggunakan Spektrofotometer Serapan Atom (SSA). Hasil penelitian menunjukkan bahwa massa adsorben optimum untuk penurunan kadar logam Cu dan Znberturut-turut adalah 0,7 gram dan 0,9 gram dengan laju alir optimum sebesar 0,3 mL/menit dan 0,2 mL/menit, maka akan dihasilkan efisiensi adsorpsi terbesar untuk logam Cuyaitu 96,6854% dan 38,6576% untuk logam Zn. Kapasitas adsorpsi tertinggi karbon aktif dari daun pandan laut teraktivasi ZnCl2 terhadap penyerapan logam Cu dan Zn berturut-turut sebesar 48,8149 mg/g dan 16,3567 mg/g. Tipe adsorpsi logam Cu memenuhi pola isoterm Langmuir.
Uji Efektivitas Arang Aktif Daun Pandan Laut yang Diaktivasi dengan Natrium Hidroksida untuk Adsorpsi Ion Fe3+ secara Sistem Kolom Sulistyani Sulistyani; Endang Dwi Siswani; Susila Kristianingrum; Annisa Fillaeli; Isnaini Saputri
Jurnal Sains Dasar Vol 8, No 1 (2019): April 2019
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jsd.v8i1.38752

Abstract

Penelitian ini memaparkan daun pandan laut sebagai alternatif baru bahan untuk membuat arang aktif, serta identifikasi kemampuan adsorpsinya secara sistem kolom. Daun pandan laut mengalami proses pemanasan hingga menjadi arang, dilanjutkan dengan proses aktivasi kimia dengan menggunakan larutan natrium hidroksida 1% dan aktivasi fisika dengan dialiri gas karbon dioksida.  Arang aktif hasil sintesis dianalisis kondisi optimum adsorpsinya secara sistem kolom, yang meliputi massa arang aktif dan laju alir.  Selanjutnya pada kondisi optimumnya, diuji daya adsorpsi arang aktif terhadap ion Fe3+. Konsentrasi ion Fe3+ sebelum dan sesudah adsorpsi dideteksi dengan menggunakan spektrofotometer UV-vis, dengan menambahkan reagen tiosinat. Hasil penelitian ini menunjukkan bahwa semakin banyak massa adsorben yang digunakan, efisiensi adsorpsi semakin baik. Pada rentang massa 0,3-0,7 gram, efisiensi adsorpsi tertinggi arang aktif terjadi pada massa 0,7 gram, dengan nilai efisiensi adsorpsi ion Fe3+ sebesar 96,92%. Pada analisis laju alir diperoleh bahwa laju alir lambat menghasilkan daya adsorpsi yang lebih baik dibandingkan laju alir cepat. Laju alir terbaik larutan ion Fe3+ terjadi pada 0,2 mL/menit dengan nilai efisiensi sebesar 99,39%. Berdasarkan kondisi optimum tersebut dapat ditentukan daya adsorpsi adsorben terhadap ion Fe3+ sebesar 30,58 mg/g.
MODIFICATION OF VOLCANIC ASH OF KELUD AS SELECTIVE ADSORBENT MATERIAL FOR Zn(II) AND Cr(VI) METAL IONS Susila Kristianingrum; Endang Dwi Siswani; Sulistyani Sulistyani
Jurnal Sains Dasar Vol 7, No 1 (2018): April 2018
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jsd.v7i1.22246

Abstract

This research aims to prepare an adsorbent from Kelud volcanic ash for better adsorption efficiency of Zn(II) and Cr(VI) than Kieselgel60GE'Merck. Adsorbent synthesis has been carried out by dissolving 6 grams of volcanic ash, activated at 700 oC for 4 hours and washed with HCl 0.1 M into 200 mL of sodium hydroxide 3 M with stirring and heating at 100 °C for 1 hour. Then, sodium silicate filtrate was neutralized using hydrochloric acid. The mixture was allowed to stand for 24 hours then filtered and washed with aqua DM, then dried and crushed. The procedure was repeated for nitric acid with a contact time of 24 hours. The products were then characterized using FTIR subsequently determined acidity, moisture content, and tested for its adsorption of the Zn(II) and Cr(VI) ions, by using AAS. The results showed that the type of acid that produced highest rendemen is AK-HCl-3M i.e. 25.50%, acidity of the synthesized adsorbent silica gel all have similarities with Kiesel gel 60G E' Merck ie 6.302mmol/g and the water content of the silica gel adsorbent synthesized similar to Kiesel gel 60G E'  Merck i.e adsorbent AK- HCl-3 M. The character of the functional groups of silica gel synthesized all have similarities with Kiesel gel 60G E'Merck as a comparison. Qualitative analysis by FTIR indicates that it has formed a bond of Si-O-Si and Si-OH. The optimum adsorption efficiency of the metal ion Zn(II) obtained from AK-HNO3-3 M adsorbent is equal to 63.24% for electroplating waste and the optimum adsorption efficiency of the Cr(VI) metal ion obtained from the adsorbent AK- HNO3-3M is equal to 64.01% for tannery waste. Keywords: Kelud, Volcanic Ash, Adsorbent
Condition optimization of sea pandan leaves biosorben synthesis and adsorptivity test on chromium and lead metal ions in different kinds of waste Susila Kristianingrum; Endang Dwi Siswani; Annisa Fillaeli
Jurnal Sains Dasar Vol 3, No 1 (2014): April 2014
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1129.971 KB) | DOI: 10.21831/jsd.v3i1.2786

Abstract

This study aims to determine whether or not biosorben synthesized from sea pandanus leaves, the influence of the type of acid used, the optimum adsorption efficiency of Cr and Pb metal ions from various wastes, as well as the synthesis results of biosorben character. The subjects were biosorben of sea pandanus Pandanus tectorius types of Java's southern coast. The objects are adsorptive properties and the character of the pandanus sea biosorben synthesized before and after activation. Purposive sampling is used as the sampling technique. The independent variables are the type of activator (HCl and H2SO4) and waste water. The dependent variables are the adsorptive nature and character of the sea pandanus biosorben synthesis results. The study was conducted in three phases, namely the manufacture of biosorben sea pandan leaves, characterization and determination of adsorption efficiency (Ep) biosorben synthesized on metal ions of Cr and Pb in batik waste, leachate, and oil. Qualitative and quantitative analysis are done using Atomic Absorption Spectrophotometer instrument at a wavelength of 357.9 nm for Cr and 217 nm for Pb. Biosorben characterization was conducted on the moisture content, ash content, volatile content, and carbon content compared with SNI 06-3730-1995 and analyzed by FTIR spectra. It is also seen biosorben surface area of synthesized both before and after activation by porosimetry. Biosorben of pandanus sea has to be synthesized. Biosorben synthesized with 5% H2SO4 solution produced optimum Ep for Cr and Pb metal ions from waste leachate obtained are 75.831% and 98.714%. Character biosorben activation results in a solution of 5% HCl and H2SO4 by FTIR have almost similar spectra. Moisture content, ash content, volatile content, and carbon content of biosorben synthesized with 5% HCl and 5% H2SO4 in accordance with SNI 06-3730-1995. Porosimetry characterization of biosorben synthesized before activation is 3.5756 m2 / g, whereas after activation with HCl 5% to 770.7636 m2/g, and after activation with 5% H2SO4 solution become 153.7002 m2/g. Keywords: biosorben, sea pandanus, adsorptivity test, chromium, lead
Pengembangan Teknik Deteksi Ion Logam Fe(III) dengan Menggunakan Nanopartikel Perak yang Distabilkan Kitosan-Formaldehida sebagai Sensor pada Spektrofotometer UV-Vis Sulistyani Sulistyani; Waode Rustiah; Susila Kristianingrum; Annisa Fillaeli; Fatikhah Nur Hidayati P.S.
Jurnal Sains Dasar Vol 11, No 1 (2022): April 2022
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jsd.v11i1.48305

Abstract

Penelitian ini bertujuan untuk mengembangkan teknik deteksi ion logam Fe(III) menggunakan nanopartikel perak sebagai sensor pada spektrofotometer UV-Vis. Nanopartikel perak disintesis melalui metode reduksi kimia dengan reduktor natrium sitrat, kemudian ditambahkan agen penstabil kitosan yang diikat silang dengan formaldehid. Selanjutnya, nanopartikel perak yang telah dimodifikasi dengan kitosan-formaldehid direaksikan dengan ion Fe(III) pada berbagai variasi konsentrasi dan sinyal absorpsinya diamati menggunakan spektrofotometer UV-Vis. Hasil penelitian menunjukkan bahwa nanopartikel perak-kitosan-formaldehid berhasil disintesis yang ditandai dengan perubahan warna dari bening menjadi kuning kecoklatan dan munculnya serapan maksimum pada λ = 416 nm. Saat berinteraksi dengan ion Fe(III) pada berbagai variasi konsentrasi, serapan maksimum nanopartikel perak yang distabilkan kitosan-formaldehid relatif tidak mengalami pergeseran, tetapi muncul serapan SPR pada λ = 480 nm. Berdasarkan uji kinerja analitik pada daerah SPR, dapat dinyatakan nanopartikel perak yang distabilkan kitosan-formaldehid memiliki kinerja yang baik sebagai sensor ion Fe(III) dengan nilai presisi 0,12%, akurasi 0,075 ppm, nilai linieritas (R2) 0,924 pada rentang konsentrasi dari 1-50 ppm dengan persamaan regresi y = 0,0015x + 0,1646, serta nilai LOD dan LOQ secara berturutan 0,106 ppm dan 0,235 ppm.
MODIFICATION OF KELUD VOLCANIC ASH 2014 AS SELECTIVE ADSORBENT MATERIAL FOR COPPER(II) METAL ION Susila Kristianingrum; Endang Dwi Siswani; Suyanta Suyanta
Jurnal Sains Dasar Vol 5, No 1 (2016): April 2016
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (922.942 KB) | DOI: 10.21831/jsd.v5i1.12659

Abstract

Abstract This research aims to prepare an adsorbent from Kelud volcanic ash for better Cu(II) adsorption efficiency than Kiesel gel 60G E'Merck. Adsorbent synthesis was done by dissolving 6 grams of volcanic ash activated 700oC 4 hours and washed with HCl 0.1 M into 200 ml of 3M sodium hydroxide with stirring and heating of 100 °C for 1 hour. The filtrate sodium silicate was then neutralized using sulfuric acid. The mixture was allowed to stand for 24 hours then filtered and washed with aquaDM, then dried and crushed. The procedure is repeated for nitric acid, acetic acid and formic acid with a contact time of 24 hours. The products were then characterized using FTIR and XRD, subsequently determined acidity, moisture content, and tested for its adsorption of the ion Cu (II) with AAS. The results showed that the type of acid that produced highest rendemen is AK-H2SO4-3M ie 36.93%, acidity of the adsorbent silica gel synthesized similar to Kiesel gel 60G E'Merck ie adsorbent AK-CH3COOH-3M and the water content of the silica gel adsorbent synthesized similar to Kiesel gel 60G E'Merck ie adsorbent AK-H2SO4-2 M. The character of the functional groups of silica gel synthesized all have similarities with Kiesel gel 60G E'Merck as a comparison. Qualitative analysis by XRD for all modified adsorbent showed a dominant peak of SiO2 except adsorbent AK-H2SO4 amorphous and chemical bonds with FTIR indicates that it has formed a bond of Si-O-Si and Si-OH. The optimum adsorption efficiency of the metal ions Cu(II) obtained from AK-H2SO4-5M adsorbent that is equal to 93.2617% and the optimum adsorption capacity of the Cu(II) metal ions was obtained from the adsorbent AK-CH3COOH-3M is equal to 2.4919 mg/ g. Keywords: adsorbents, silica gel, adsorption, kelud volcanic ash
Pembelajaran Interaktif Menggunakan Industri Kimia Lokal Sebagai Sumber Belajar Pada Kimia Analisis II Sunarto Sunarto; Susila Kristianingrum; Suyanta Suyanta
Jurnal Pendidikan Matematika dan Sains No 1 (2011): Jurnal Pendidikan Matematika dan Sains Tahun XVI
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpms.v16i1.12211

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pembelajaran interaktif menggunakan industri kimia lokal sebagai sumber belajar untuk meningkatkan pemahaman mahasiswa pada mata kuliah Kimia Analisis II. Subjek penelitian ini adalah 40 mahasiswa Prodi Kimia FMIPA UNY semester genap Tahun Akademik 2009/2010. Tindakan yang diberikan adalah interaksi mahasiswa dengan industri penyulingan minyak kayu putih di Sendangmole Gunungkidul, industri pengolah air limbah (IPAL) di Pendowoharjo Sewon Bantul, industri elektroplating di Kotagede, PDAM Sleman, dan PG Madukismo di Tirtonirmolo Kasihan Bantul. Mahasiswa mengadakan interaksi dengan industri melalui studi lapangan. Hasil penelitian menunjukkan bahwa pembelajaran interaktif dengan menggunakan industri kimia lokal dapat meningkatkan pemahaman mahasiswa.Kata kunci: interaktif, implementasi, lesson study
CRYSTALLIZATION AND CHARACTERIZATION OF CHROMIUM-CONTAINING SILICALITE-1 Hari Sutrisno; Endang Dwi Siswani; Susila Kristianingrum; Suharto Suharto
Indonesian Journal of Chemistry Vol 5, No 3 (2005)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (330.893 KB) | DOI: 10.22146/ijc.21805

Abstract

Chromium-containing silicalite-1, designed CrS-1, was synthesized by the hydrothermal method and characterized by XRD and FTIR techniques. The objectives of the research are to study the synthesis of CrS-1 and investigate the effect of crystallization temperatures and times toward its character. All samples of CrS-1 crystallized in orthorhombic structure and Pnma space group. The phase observed in the XRD patterns of CrS-1 synthesized from 150 to 190 oC for 11 days showed only MFI-type phase. The CrS-1 prepared under static condition for 1 day at 150 oC indicated α-SiO2 phase, on the contrary, the samples conditioned for 2 to 8 days at 150 oC are only MFI phase.
OPTIMIZATION OF TIME REACTION AND HYDROXIDE ION CONCENTRATION ON FLAVONOID SYNTHESIS FROM BENZALDEHYDE AND ITS DERIVATIVES Sri Handayani; Sunarto, Sunarto,; Susila Kristianingrum
Indonesian Journal of Chemistry Vol 5, No 2 (2005)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (331.09 KB) | DOI: 10.22146/ijc.21825

Abstract

The aim of this research is to determine the optimum time of reaction and concentration of hydroxide ion on chalcone, 4-methoxychalcone and 3,4-dimethoxychalcone synthesis. Chalcone and its derivatives were synthesized by dissolving KOH in ethanol followed by dropwise addition of acetophenone and benzaldehyde. Then, the mixture was stirred for several hours. Three benzaldehydes has been used, i.e : benzaldehyde, p-anysaldehyde and veratraldehyde. The time of reaction was varied for, 12, 18, 24, 30 and 36 hours. Furthermore, on the optimum reaction time for each benzaldehyde the hydroxyl ion concentration was varied from 5,7,9,11 and 13%(w/v). The results of this research suggested that the optimum time of chalchone synthesis was 12 hours, while, 4-methoxychalcone and 3,4-dimethoxychalcone were 30 hours. The optimum concentration of hydroxide ion of chalcone synthesis was 13% and for 4-methoxychalcone and 3,4-dimethoxychalcone were 11%.
The Decreasing of Copper (Cu) and Lead (Pb) Concentration in Electroplationg Liquid Waste with Coconut Coir Adsorbent Sanita Tyas Safitri; Susila Kristianingrum
Indonesian Journal of Chemistry and Environment Vol 3, No 2 (2020): DECEMBER 2020
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (487.025 KB) | DOI: 10.21831/ijce.v3i2.43507

Abstract

The study about determining the characteristics, optimize of mass and adsorption efficiency of Cu and Pb metal ions in electroplating waste on each coconut coir adsorbent have been done as an alternative to commercial activated charcoal. The adsorption process is carried out by the batch method. Analysis of metal content was carried out using AAS instrument and SEM-EDX to determine the morphology and components of coconut coir adsorbent. The results of the characteristics of the coconut coir adsorbent meet SNI 06-3730-1995 for volatile substances and carbon subtances, meanwhile the commercial activated charcoal have not meet SNI 06-3730-1995 for the content of volatile substances, ash content, carbon subtances and absorption capacity of I2 . The characteristics with the morphology of the surface of the coconut coir adsorbent before and after adsorption has less uniform particle size and has a round pore with a large cavity like a honeycomb. The optimize mass of coconut coir adsorbent for adsorption of Cu and Pb metal ions is 0.9 grams. The efficiency and capacity adsorption of Cu and Pb metal ions using coconut coir adsorbent on 50 mL electroplating waste were 8.39% and 34.38%, respectively also has 11 mg/g and 0.026667 mg/g. The surface component of coconut coir adsorbent before adsorption contain Pb metal had a mass% of 0.4%, while after adsorption there was a metal content of Cu which had a mass% of 0.9% and Pb metal had a mass% of 4.5%.