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Walisongo Journal of Chemistry
Published by Universitas Islam Negeri Walisongo Semarang
ISSN : 2549385X     EISSN : 26215985     DOI : 10.21580/wjc
Core Subject : Science,
Chemistry
Walisongo journal of chemistry is a peer reviewed and open access journal published by Chemistry Department, faculty of Science and Technology, UIN Walisongo Semarang. This journal covering all areas of chemistry including inorganic, organic, physic, analytic, biochemistry, and environmental chemistry. Walisongo Journal of Chemistry publish two issues annually (July and October). Article which accepted in this journal was written by Bahasa and English.
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Articles 203 Documents
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Rhodamine-B Dyes Adsorption by Beads Alginate Rahayu Rahayu; Adriani Bandjar; Ninditha Clourisa Amaris Susanto; Febi Indah Fajarwati; Nguyen Thi Thanh Phuong
Walisongo Journal of Chemistry Vol 5, No 1 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i1.9094

Abstract

Research has been carried out on the adsorption of rhodamine-b dye by alginate beads. The production of alginate granules was carried out at a concentration of 3.5% alginate powder. Identification of functional groups was carried out by FT-IR and water absorption test resulted in a maximum capacity of 96.24% at 90 minutes. Determination of adsorption capacity was carried out by UV-VIS spectrophotometer at a maximum contact time of 30 minutes and a maximum pH at pH 7, and resulted in adsorption maximum concentration at 30 ppm is 15.954 mg/L with adsorption capacity of 4.7862 mg/g
Phytochemical Screening and Larvicidal Activity of Kebiul (Caesalpinia Bonduc. L) Seed Kernel Against Aedes Aegypti Mosquito Popi Rantina; Dwi Fitri Yani; Suci Permata Sari; Dany Raihan
Walisongo Journal of Chemistry Vol 5, No 1 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i1.9476

Abstract

Dengue Hemorrhagic Fever (DHF) is caused by an infected A. aegypti mosquito, which can cause serious bleeding, a sudden drop in blood pressure and even death. Kebiul seed kernel extract is thought to contain flavonoid compounds, terpenoids, saponins and steroids that can be used as larvicides. The purpose of this study was to determine the toxicity of the extract, n-hexane fraction, and ethanol fraction of kernel seed (C. bonduc. L) against A. aegypti mosquito larvae.  This study used the methods of extraction, phytochemical screening, and toxicity tests by calculating larval mortality. Based on the results of phytochemical screening, extract of kernel seed (C. bonduc. L) contains tannins, flavonoids, alkaloids, steroidal saponins and terpenoids. Toxicity test (LC50 values) of extract, n-hexane fraction, and ethanol fraction of kernel seed (C. bonduc. L) are 368,566 g/mL, 483,010 g/mL, 338,361 g/mL. The LC50 value 1000 ppm has a toxic effect, so the kernel seed has the potential to be used as a larvicide.
The Effect of Sorbitol Addition in Bioplastic from Cellulose Acetate (Sugarcane Bagasse)-Chitosan Zidni Azizati; Iseh Muhammad Zaenal Afidin; Lutfi Aditya Hasnowo
Walisongo Journal of Chemistry Vol 5, No 1 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i1.12173

Abstract

This study aimed to determine the effect of sorbitol addition into cellulose acetate-chitosan bioplastic and its biodegradation properties. Cellulose was isolated from the pulp of sugarcane bagasse and acetylated to be cellulose acetate. Cellulose acetate was characterized by FTIR, the results of FTIR characterization contained C=O and C-O functional groups with wavenumbers of 1644.99 cm-1 and 1059.86 cm-1 which indicated the formation of cellulose acetate. Cellulose acetate-chitosan bioplastic and cellulose acetate-chitosan-sorbitol bioplastic has been successfully synthesized and characterized. The results of FTIR characterization showed that bioplastics had C=O and C-O functional groups at wavenumbers of 1644.99 cm-1, 1059.86 cm-1 which was indicated as cellulose acetate and  N-H functional group at wavenumber of 1559.66 cm-1 which was indicated as the presence of chitosan in bioplastics and there is an increase in absorption intensity of the O-H functional group which indicates that sorbitol has been successfully added to bioplastics. The addition of sorbitol could improve the percent of elongation from 14.0635% to 19.9379% and decrease the tensile strength from 6.3049 MPa to 0.6309 MPa. It also could increase water absorption from 16.68% to 88.73%, and could accelerate the bioplastic degradation process from 24 days to 8 days.
Synthesis of Zeolite Based Material With Aluminum Sources from Used Beverage Cans for Hard Water Desalination Muhammad Miqdam Musawwa; Nova Restu Nur Ardiyanto; Agil Lestari; Ahmad Khoiruddin Yusuf; Mochamad Solehudin
Walisongo Journal of Chemistry Vol 5, No 1 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i1.9172

Abstract

Hard water contains high mineral content, especially calcium (Ca) and magnesium (Mg). Hard water can cause health problems and damage to household appliances within a certain period of time. In this study, zeolite-based materials have been synthesized as adsorbent materials to reduce the concentration of Ca2+ and Mg2+ in the hard water obtained from Brondong district of Lamongan, East Java. Zeolite based material was synthesized with aluminum sources derived from beverage cans and silica from silica gel.  In this study, zeolite was prepared by microwave (ZM) and without the microwave method (ZNM). The amount of ZM was 10.8121 grams, or 99.1% of the yield, and ZNM was 10.5387 grams or 99.15% of the yield. The FTIR results indicate some characteristic peaks of T-O and T-O-T bonds (T = Si/Al) at 460, 670, 726, and 980–1100 cm1. The diffractogram show that ZNM is still dominated by silica-based materials, while ZM although it still shows dominant amorphous silica peaks, some characteristic zeolite peaks also appear. The SEM results show the shapes of agglomerated tiny particles for both materials. In this study, the synthesized zeolite can reduce the concentration of Ca2+ ions by 84–97% and Mg2+ ions by 23-51%. The optimal time obtained in this study was 30 minutes, while the optimal mass obtained was 0.5 grams for all materials. 
Analysis of Quantitative Structure-Activity Relationship (QSAR) Of 1,8-Napthalymide-4-Aminoquinoline Derivatives as Antimalarial Compounds Ika Nur Fitriani; Muhammad Sholahudin; Adi Tiara Zikri
Walisongo Journal of Chemistry Vol 5, No 2 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i2.13412

Abstract

QSAR analysis from derivative compounds of 1,8-naphthalimide-4-aminoquinoline has been carried out with the aim of knowing the quantitative relationship between structure and activity based on the log IC50 value. The modelling was made with two dimensions and geometric optimization is carried out. The AM1 semi-empirical method was used to optimize the geometry of the total energy of 25 compounds. The descriptors in the QSAR calculation were dipole moment, atomic net charge, ELUMO, EHOMO, SAG, SAA, hydration energy, polarizability, and log P. The descriptors were used to find quantitative equations of the relationship between the structure and antimalarial activity.
Synthesis of Bioplastics on Rice Straw Cellulose Using Orange Peel Extract, Chitosan, and Sorbitol Sitti Chadijah; Harianti Harianti; Amalyah Febryanti; Alfiah Alif; Maulidiyah Maulidiyah; Akrajas Ali Umar
Walisongo Journal of Chemistry Vol 5, No 2 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i2.10090

Abstract

With the use of several plasticizers (orange peel extract, chitosan, and sorbitol), rice straw cellulose has been used to synthesize and characterize bioplastics. This study aims to synthesize and characterize bioplastics from rice straw cellulose with various additions of plasticizers, namely orange-peel extract, chitosan, and sorbitol, each with a certain concentration so that quality improvement can occur. The methods used in this study include testing the tensile strength value, testing the percentage elongation, and testing the percentage of biodegradation. In addition, functional group characterization tests were also carried out using FTIR. The results obtained in this study were the best values for tensile strength and percentage elongation in treatment A, namely 10.2611 MPa and 13.88%. The percentage of biodegradation for 7 days reached 50.58%. Functional group absorptions were found in various plasticizers, namely C-H, O-H, C-O, C-N, and C=C. Based on existing data, bioplastics synthesized using rice straw cellulose in various plasticizers meet JIS (Japan Industrial Standards).
Use of Surface Modified Calcium Oxide Nanoparticle in Immobilizing of Lead and Cadmium Contaminated Soil Okponmwense Moses; Osaretin Festus Agbonsalo
Walisongo Journal of Chemistry Vol 5, No 2 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i2.13129

Abstract

Remediation is vital in advancing the agriculture yield and decreasing the hazard of food poisoning in contaminated soil. The aim of this study was to remediate lead and cadmium contaminated soil from Evbareke spare parts market using surface modified calcium oxide nanoparticle (SMCON). Soil samples were collected from Evbareke spare parts market, Benin City, Edo state Nigeria, using quadrant sampling method at the depth of 0-15cm using soil auger. The soil samples obtained were physicochemically and geochemically characterized. The SMCON was synthesized and characterized using Fourier Transform-Infra Red, Scanning electron spectroscopy and x-ray diffraction. A leaching experiment was carried out to authenticate the immobilization efficiency and capacity of SMCON on the lead and cadmium in the contaminated soil. The SMCON efficiency for lead and cadmium immobilization in the contaminated soil increased with increase in immobilizer up to the optimum 4% of SMCON in contaminated soil for lead and ≤1% of SMCON for cadmium. Likewise, the immobilization capacity of SMCON in the contaminated soil also revealed that more of lead and cadmium were immobilized as SMCON content in the contaminated soil mixture increased, thereby disallowing leaching of lead and cadmium from the contaminated soil. The SMCON effectively decreased the lead and cadmium in the soil by in situ adsorption, ion exchange and complexation mechanism thus reducing its accessibility for uptake by plants and its transmission to man and animals.
Characterization of Eggshells Nanocatalyst: Synthesized by Bottom-Up Technology Jeremiah Odhek Masime; Erich Okoth Ogur; Betty N. Mbatia; Austin Ochieng' Aluoch; Geoffrey Otieno
Walisongo Journal of Chemistry Vol 5, No 2 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i2.13434

Abstract

The sol-gel technique was used to prepare the nanocatalyst from waste egg shells for the production of yellow oleander biodiesel. In this study, the physicochemical and catalytic properties of the nanocatalysts were investigated using: X-ray fluorescence spectrometry (XRF), transmission electron microscopy (TEM), the Barrett-Joyner-Halenda (BJH) model to quantify the pore structure of the samples, and Brunauer-Emmett-Teller (BET) to calculate the exact surface area were the techniques used. The results of the EDX, and XRF analysis showed that the synthesized nanocatalyst was majorly CaO. At 90.46 ± 1.73%, this was higher than the control for incinerated eggshells. From TEM images the particles were spherical in shape with particle sizes ranging from ≈ 7 to 41 nm. BET analysis results indicated that the nanocatalyst was mesoporous with surface area, average pore diameter, and pore volume was; 5.54 ± 0.48 m2/g, 18.57 ± 2.16 nm, and ≈ 0.016 ± 0.0 – 0.017 ± 0.0 cm³/g, respectively. The surface area to volume ratios were 3.27 ± 108 m-1, 2.52 ± 108, and 1.95 ± 108 m-1, respectively. Incinerated eggshells highest followed the synthesized nanocatalyst and CaO, respectively. The synthesized eggshell nanocatalyst was found to be a potential nanocatalyst.
Antihyperuricemia Potential in Ethanol Extract of Siamese Bamboo (Thyrsostachys siamensis) Leaves on Male White House Mice (Mus musculus L.) Muhamad Aditya Hidayah; Gerda Pintoko Tunjungsari; Retno Aliyatul Fikroh; Hisyam Mashadi; Titik Handayani; Beta Achromi Nurohmah
Walisongo Journal of Chemistry Vol 5, No 2 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i2.10666

Abstract

Hyperuricemia is commonly treated with the synthesis drug allopurinol. Allopurinol lowers uric acid by inhibiting the enzyme xanthine oxidase but provides side effects on the skin and kidneys. In addition, it can be overcome with secondary metabolite compounds in plants. This compound is found in bamboo leaves that have long been used by Chinese people for treatment. This study aims to find out the ability of siamese bamboo leaf extract (Thyrsostachys siamensis) in lowering the uric acid levels of white house mice. Fine siamese bamboo leaves are extracted using 70% ethanol and then evaporated with a rotary evaporator. Obtained a viscous extract with a yield of 55.42% which was further analyzed the phytochemical content and obtained that siamese bamboo leaf extract contains alkaloids, flavonoids, saponins, tannins, and triterpenoids. The ability to reduce uric acid levels was tested in male white house mice (Mus musculus L) with six treatment groups, namely group I (without treatment), group II (negative control), group III (positive control), group IV (extract 5 mg / 20 g WW), group V (extract 10 mg / 20 g WW, group VI (extract 20 mg / 20 g WW) which had previously been adapted in the test cage environment. Tests of the activity of siamese bamboo leaf ethanol extract (Thyrsostachys siamensis) against the reduction of white house mouse uric acid showed the best percentage reduction at an extract dose of 5 mg / 20 g BB of 65.85%. This value does not differ much and is comparable to the decrease by allopurinol 0.78 mg / 20 g BB of 58.97%. Therefore, siamese bamboo leaves (Thyrsostachys siamensis) proved effective in lowering uric acid levels.  This proves that siamese bamboo leaves can lower the uric acid levels of white house mice and have the potential to be used as a treatment material for hyperuricemia and is expected to provide information on the use of bamboo plants (Thyrsostachys siamensis) as a lowering of uric acid levels. The results of this uric acid reduction test can be used as a reference to determine how to consume bamboo leaf extract (Thyrsostachys siamensis) for the treatment or prevention of gout.
Chitosan-Activated Charcoal of Modified Corn Cobs as an Antibiotics Adsorbent Gatut Ari Wardani; Clarisa Kartika Putri; Firman Gustaman; Taufik Hidayat; Estin Nofiyanti
Walisongo Journal of Chemistry Vol 5, No 2 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i2.13164

Abstract

Excessive use of tetracycline hydrochloride can cause water pollution. The concentration of tetracycline hydrochloride in an aqueous solution can be reduced by an adsorption method that utilizes activated charcoal as an adsorbent. This study aims to determine the effect of the addition of chitosan on the characteristics of activated charcoal, the effect of pH, adsorption kinetics, the adsorption isotherm, and the effect of sonication on adsorption ability. The method used in this research is the batch method combined with the sonication method. Based on this research, it is known that the use of ultrasonic waves (sonication) can streamline the adsorption process of tetracycline hydrochloride. The time required for the adsorption process is faster with greater adsorption capacity and efficiency. Tetracycline solution can be absorbed optimally at an acidic pH, which is pH 4. The adsorption process using the sonication method can increase the adsorption capacity from 2.092 mg.g-1 to 5.330 mg.g-1. The adsorption mechanism in both methods (batch and sonication) that occurs follows the kinetic equation of the two Ho pessaries. In contrast to adsorption kinetics, the adsorption isotherm for the batch method corresponds to the Langmuir adsorption isotherm equation (R2 = 0.950), while the use of the sonication method corresponds to the Freundlich isotherm equation (R2 = 0.859).  Thus, corn cob waste can be utilized by converting it into activated charcoal modified by chitosan as an adsorbent for antibiotic waste, especially tetracycline hydrochloride.

Page 11 of 21 | Total Record : 203

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