Advances in Social Science, Education and Humanities Research, 2021
In this article, the copper and lead adsorption process using Indonesian Natural Zeolite (INZ) is... more In this article, the copper and lead adsorption process using Indonesian Natural Zeolite (INZ) is studied as an adsorbent. INZ samples were obtained from Sumbermanjing Wetan, Malang district, East Java. The influence of activating acid concentration and different types of acid on the removal of copper and lead were evaluated. The activated INZ was used for adsorption of Cu and Pb from chemistry laboratory wastewater of State Islamic University of Maulana Malik Ibrahim Malang. INZ were characterized by X-ray diffraction and X-ray fluorescence spectroscopy. Characterization using XRD indicated that the activation does not affect structural changes and the diffraction pattern showed that INZ had a mordenite phase. The XRF spectra showed that increasing concentration of the activating acid simultaneously reduces undesired metal content in INZ. Determination of Cu and Pb content using Atomic Absorption Spectroscopy on wastewater showed that increasing concentration of the activating acid decreases the concentration of Cu and Pb in wastewater. The removal of Cu and Pb using INZ activated by HCl reached 61.56 % and 71 % respectively, while the removal of Cu and Pb using INZ activated by H2SO4 reached 32.86 % and 73.14 % respectively.
Based on the rapid development of science, it is known that the Jatropha Curcas L., Chitosan, and... more Based on the rapid development of science, it is known that the Jatropha Curcas L., Chitosan, and Gelatin are natural materials which have various benefits. The aim of this research is to determine the characteristic of blend of Jatropha Curcas L., Chitosan, and Gelatin as a biomedical application. The blending material is obtained in the form of film / layer as a preliminary review of the research This research is experimental and the process in this research consists of 2 steps i.e. variation of gelatin composition and variation of chitosan composition. The samples obtained were characterized by tensile test to determine the value of tensile strength, strain, and Young's modulus. The best result of it was tested by FTIR, then it's solubility also was tested. Based on the tensile strenght test, gelatin which can improve the chitosan properties are rigid and brittle. The composition of 2: 8: 12 which has a value of tensile strength, strain, and Young's modulus is low while the composition of 2:12:10 is high. Based on the FTIR test, there are extension and shift of OH group at wave number 3428,4; 3447.2; and 3447.2 cm-1. In the solubility test was found that the composition of 2: 8: 12 has the highest solubility while the composition of 2:12:10 has the lowest solubility.
Pembelajaran kimia fisika melalui praktikum biobaterai di MA Al-Ittihad Poncokusumo Kabupaten Malang
Pada saat ini sudah banyak pengembangkan energi alternatif dari baterai alami salah satunya adala... more Pada saat ini sudah banyak pengembangkan energi alternatif dari baterai alami salah satunya adalah biobaterai, yang sederhana dan relatif murah. Pada kurikulum mata pelajaran kimia, aspek yang dinilai tidak hanya dari segi pengetahuan namun juga dari segi ketrampilan praktikum, dan sikap kerja sama. Namun seringkali praktikum tidak terlaksana karena terkendala biaya baik dari bahan maupun peralatan. Belajar secara teori pada mata pelajaran elektrokimia belum tentu menjadikan siswa mampu memahami apa yang mereka pelajari. Dalam mata pelajaran elektrokimia, siswa perlu melakukan praktik secara langsung untuk mendapatkan makna lebih dari suatu materi yang sedang dikaji. Siswa perlu melakukan sendiri, menyentuh, mengamati, dan mengukur untuk membuktikan suatu teori, sehingga lebih termotivasi dalam mengkaji dan secara tidak langsung dapat memunculkan rasa keingintahuan. Dalam mata pelajaran elektrokimia banyak materi yang dapat dilakukan percobaan menggunakan bahan yang ada di sekitar k...
Adsorpsi Metil 1-[(Butilamino)Karbonil]-1H-Benzimidazol-2-Karbamat (Benomil) pada Humin sebagai fraksi tak larut tanah gambut Pontianak Kalimantan Barat
The research is conducted on the effectiveness of Moringa oleifera as “bioflokulan” of Hg, Pb, an... more The research is conducted on the effectiveness of Moringa oleifera as “bioflokulan” of Hg, Pb, and Cr to liquid waste of ceramics industry in Dinoyo Malang. It includes the analysis of chemical and physical nature of the liquid waste and also the effect of adding Moringa oleifera to the liquid sample of Hg, Pb, and Cr. The research on physical nature shows that liquid waste of ceramics industry in Dinoyo Malang is turbid, odorless and it has white colour, 25.3 C temperature, 258 S conductivity and TDS 185 ppm. While the research on the chemical nature shows that it has pH 7.8, Hg and Pb are unidentified, and Cr 0.0402ppm. Both analyses indicate that they are below the limit line. The analysis also shows that there is significant concentration decrease after adding Moringa oleifera to the sample of Hg, Pb, and Cr, and this happen because Moringa oleifera contains 4-alfa-4-rhamnosiloxy-benzil-isothiosianat that can coagulate ions in metal. Kata kunci : Moringa oleifera, bioflokulan, ...
Synthesize CMC uses cellulose extracted from cornstalk waste. FTIR and XRD characterize CMC synth... more Synthesize CMC uses cellulose extracted from cornstalk waste. FTIR and XRD characterize CMC synthesize. Alginate: CMC (AC) beads made by dropping technique through the ionic gelation method with crosslinking CaCl2 3%. Fourier Transform Infra-Red (FTIR) to know the AC's function group, swelling test to know the swelling power, and SEMEDX to see the surface characteristics. The optimum composition of AC composite beads was 1:2 based on beads' formation, the highest swelling power value 175.5%, and the diameter was 26.64%. The data FTIR AC showed that wave number at 819 cm-1 indicates the presence of Ca-alginate linkage. The SEM-EDX of AC without CMC 1:0 showed a smooth surface, while the surfacer character of AC 1:2 is rough.
In this study, the synthesis of porous beads from corn stalks was carried out. The cellulose extr... more In this study, the synthesis of porous beads from corn stalks was carried out. The cellulose extracted from corn stalks was converted into cellulose xanthate and combined with alginate to form porous alginate-cellulose xanthate beads by the ionic gelation method. This study attempted to use sodium chloride (NaCl) as a porogen and zinc acetate as a crosslinker. Beads were characterized to determine the porosity, swelling properties, and functional groups using Fourier Transform Infra-Red (FTIR). The geometry of beads was analyzed by optical microscopy, and its surface morphology was analyzed by Scanning Electron Microscopy-Energy Dispersive X-ray (SEM-EDX). The results showed that corn stalks as agricultural waste material could be used to synthesize porous beads material. The swelling and porosity of beads increased with increasing concentration of NaCl. The presence of porogen has increased beads formation. The results demonstrate the crosslinks between zinc acetate and alginate we...
Removal methylene blue from water using coconut waste ash activated by NaCl is studied in this pa... more Removal methylene blue from water using coconut waste ash activated by NaCl is studied in this paper. The characteristic of morphology and pore structure of coconut waste ash is analyzed using SEM, show that pores were formed after activation. XRF analysis revealed that the coconut waste ash before activation contains 20,19 % of Si. The effect of NaCl concentration on the adsorption behavior is investigated. The results show that the optimum concentration of NaCl to activating the coconut waste ash is 300 ppm. The adsorption capacity of coconut waste ash without activation, NaCl-activated coconut waste ash on 200 ppm, 300 ppm, and 400 ppm is 1.103 mg/g, 1.152 mg/g, 1.2102 mg/g, and 1.1109 mg/g respectively.
In this research, Moringa oleifera seeds extract has been shown the ability as a coagulation agen... more In this research, Moringa oleifera seeds extract has been shown the ability as a coagulation agent. The molecules that act as the coagulation agents were the proteins which were obtained by the extraction process of the Moringa seeds using NaCl solution. The aim of this research was to characterize and test the effectiveness of the Moringa seeds extract as a phosphate coagulant. The determination of the coagulation process was carried out using a Jar Test method of phosphate solution samples, and then effectiveness the samples were analyzed using a UV-Vis spectroscopy after-treatment of the coagulant dose variations, depositional time, and the pH variations of the samples. The characterization of the extract functional groups was determined using an FTIR spectroscopy. The results of the coagulation phosphate sample examinations showed that the optimum dose of the coagulant was 80 mL/L, with a decrease in the initial phosphate concentration of 17 ppm to 13.58 ppm. The reduction effec...
Corn stalk contains 40-50% cellulose, 20-40% hemicellulose, 4-15% lignin which had potential as b... more Corn stalk contains 40-50% cellulose, 20-40% hemicellulose, 4-15% lignin which had potential as biosorbent in binding metal ions. In this study, demineralization and modification by adding citric acid (1.5 M and 2 M) of corn stalk were conducted to convert hydroxyl groups into carboxylic. Then, it was analyzed its functional groups using Boehm titration and FTIR. The modified corn stalk was applied directly to chemical laboratory liquid waste which contains multicomponent of heavy metal ions. By modifying the corn stalk, the number of hydroxyl and carboxylic groups increased, but the number of lactone group was constant. The success of the modification was characterized by the appearance of ester uptake at 1734 cm-1 and increased adsorption ability. The variations in the concentration of citric acid in modification corn stalk showed that biosorbent with addition 1.5 M citric acid had higher in the number of acid site than addition 2 M citric acid to absorb Ni and Cu. Keywords: Corn...
Kelor is a nutrient-rich plant that can be used for food, medicine, fertilizer as well as customa... more Kelor is a nutrient-rich plant that can be used for food, medicine, fertilizer as well as customary rituals and is easy to cultivate, especially in tropical climates. The geographical condition is quite fertile and the economic community of Talangsari Village Ringin twin Subdistrict Sumbermanjing Wetan Malang Regency which generally middle down with the majority work as farmers make the welfare of the community Talangsari Hamlet relatively less due to low education, and health. Community empowerment is done by counseling, socialization, training to the community about the cultivation and nutrition of moringa plants to improve nutrition, as herbal medicine and organic liquid fertilizer and then conducted monitoring and evaluation. The result of the research shows that the increasing of interest for the cultivation of moringa kelor with the growing number of kelor planted, the effectiveness of kelor leaf extract as a natural fertilizer, in addition leaf kelor proven to alleviate vario...
Pemurnian minyak goreng bekas dalam penelitian ini terdiri dari tiga tahap yaitu despicing, netra... more Pemurnian minyak goreng bekas dalam penelitian ini terdiri dari tiga tahap yaitu despicing, netralisasi, dan bleaching menggunakan karbon aktif polong buah kelor. Pembuatan karbon aktif yang digunakan meliputi tiga tahap yaitu dehidrasi, aktivasi kimia dengan perendaman dalam larutan NaCl 15 % dan 30 %, dan karbonisasi dalam reaktor fluida pada suhu 650 ºC, 700 ºC dan 750 °C selama 120 menit dalam medium gas N2. Minyak goreng bekas dan minyak goreng hasil tiap tahap proses pemurnian dianalisa angka peroksida dengan metode iodometri dan FFA dengan metode titrasi asam basa. Hasilnya menunjukkan bahwa penurunan angka peroksida terbesar terjadi pada proses bleaching KA.30 % dengan suhu 650 ºC yaitu dari 6,80 meq/kg menjadi 0,25 meq/kg, sedangkan FFA mengalami penurunan terbesar pada proses netralisasi yaitu dari 0,35 % menjadi 0,16 %. Hal ini menunjukkan bahwa karbon aktif polong buah kelor sangat efektif dalam menurunkan angka peroksida dan FFA pada minyak goreng bekas.<br /><...
Merunggai Leaf (Moringa oleifera Lamk.) is a plant with high nutrition. All its vegetative parts ... more Merunggai Leaf (Moringa oleifera Lamk.) is a plant with high nutrition. All its vegetative parts are enriched with nutrition including leaf, bark, flower, fruit (legume), and root. A lot of benefits may be taken from Merunggai Leaf (Moringa oleifera Lamk.) such as being material for coagulant, nutrition, vitamin and medicine. Research of Indonesian merunggai has only examined this plant as fencing plant and vegetable, but very few researches about bio-activity of merunggai leaf and its usage as anti-cancer. This research will examine the toxicity of aquades extract (room temperature) and hot aquades (70 0 C) of Merunggai Leaf (Moringa oleifera Lamk.) against shrimp larva Artemia salina Leach using BSLT Method. The aquades solvent is beneficial because it is economic and easily afforded, and therefore, it is widely used throughout community. Result of research indicates that aquades extract (room temperature) and hot aquades (70 0 C) of merunggai leaf has toxicity against Artemia salina Leach as shown by LC 50 less than 1000 ppm. Hot aquades extract (70 0 C) has higher toxicity than aquades extract (room temperature) because the sequential results of LC 50 are 163.979 ppm and 265.977 ppm. The substances within hot aquades extract (70 0 C) are alkaloid, flavonoid, tannin and triterpenoid. Based on this result, merunggai leaf has a potential to be used as herbal stock which then can be used as anti-bacterial and anti-cancer materials.
Corn stalk has a high cellulose content, so that it is potential to be used as a composition for ... more Corn stalk has a high cellulose content, so that it is potential to be used as a composition for making alginate-carboxymethyl cellulose beads. Alginate and cellulose are biodegradable, renewable and non-meltable polymers that have wide applications in various industrial sectors. The purpose of this study was to determine the effect of crosslinking agent C4H6O4Zn on the adsorption and shape of beads. The varied concentrations of C4H6O4Zn are 3%; 5% and 10%. Characterization of alginate-carboxymethyl cellulose beads composites using Fourier Transform InfraRed (FTIR), and Scanning Electron Microscope-Energy Dispersive X-Ray (SEM-EDX). Based on research, the highest swelling value is obtained at 5% C4H6O4Zn crosslink which is 59.68%. FTIR data shows the appearance of wave numbers at 1413 cm-1 which indicates the presence of C-O Na groups, while at wave number 458 cm-1 indicates the presence of Zn-O groups. SEM-EDX data with a 5% C4H6O4Zn crosslink has a round shape with a wrinkled surf...
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