Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Greensphere: Journal of Environmental Chemistry Makara Journal of Science Paradigma: Jurnal Filsafat, Sains, Teknologi, dan Sosial Budaya
Nabilah, Wardah
Unknown Affiliation
Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Education Languange, Linguistic, Communication & Media Social Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Immobilization of Ni(II) on Amine-Functionalized Mesoporous Silica as Catalyst for Benzyl Alcohol Acetylation Reaction Nabilah, Wardah; Kunarti, Eko Sri; Pambudi, Fajar Inggit
Makara Journal of Science Vol. 28, No. 3
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In this study, amine-functionalized and Ni(II)-immobilized mesoporous silica materials were synthesized. This research aimed to synthesize mesoporous silica based on rice husk ash functionalized with amine and immobilized with Ni(II). The activity of amine-functionalized and Ni(II)-immobilized mesoporous silica materials was studied for the acetylation of benzyl alcohol with acetic anhydride as the acetylating agent. First, mesoporous silica was synthesized using rice husk ash using the sol–gel method, followed by amine functionalization using (3-aminopropyl)triethoxysilane (APTES) and Ni(II) immobilization through ultrasonic treatment. The results obtained showed that amine-functionalized and Ni(II)-immobilized mesoporous silica (SiO2/APTES/Ni(II)) were successfully synthesized, confirmed by Fourier transform infrared and Energy-dispersive X-ray spectrometry data. In addition, the synthesized materials had an average pore diameter of 12.83 nm. Afterward, the catalytic activity test showed that SiO2/APTES/Ni(II) was able to convert 98.34% of benzyl alcohol in the acetylation reaction at 45 °C for 5 h. The use of the SiO2/APTES/Ni(II) catalyst for three cycles obtained percent conversion values with a slight decreases (98.34%, 95.20%, and 90.61%).
Optimalisasi e-Katalog Laboratorium IPA terhadap Peningkatan Kemampuan Dasar Laboratorium Mahasiswa Pendidikan IPA Universitas Negeri Malang Anggi Arista, Rini; Nida, Safwatun; Nugraheni, Dian; Nurul Qomaliyah, Eka; Mulyati, Yayuk; Sugiyanto; Nabilah, Wardah
Paradigma: Jurnal Filsafat, Sains, Teknologi, dan Sosial Budaya Vol. 30 No. 3 (2024): Paradigma: Jurnal Filsafat, Sains, Teknologi, dan Sosial Budaya
Publisher : Universitas Insan Budi Utomo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/paradigma.v30i3.660

Abstract

Learning Natural Sciences (IPA) in tertiary institutions has a vital role in forming basic scientific understanding and skills in students. One of the innovations needed to improve students' basic laboratory capabilities is developing learning media in laboratory e-catalogs. E-catalog is an electronic-based information system that provides information regarding tools, materials, and equipment available in the laboratory, including information related to laboratory safety. It allows students to access information in a structured and easy-to-access manner. This research aims to assess the effectiveness of a laboratory e-catalog in improving students' understanding and basic laboratory skills using a questionnaire method for 59 respondents from Science Education students in Biochemistry and Genetics courses. Based on data from evaluation results using the questionnaire method, it shows that the science education department's laboratory e-catalog has proven to be effective in increasing students' knowledge regarding the use and storage techniques of laboratory equipment and materials, which can increase students' knowledge regarding basic laboratory capabilities which influence students' interest in learning and the learning process.
Sintesis Silika Gel-Cu(II) dari Limbah Geothermal dengan Metode Sol-Gel sebagai Antibakteri Escherichia Coli dan Staphylococcus Aureus Nabilah, Wardah; Pardoyo, Pardoyo; Azmiyawati, Choiril
Greensphere: Journal of Environmental Chemistry Vol 5, No 2 (2025): Volume 5 Nomor 2 Tahun 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gjec.2025.29633

Abstract

Sintesis material silika gel-Cu(II) telah dilakukan. Tujuan dari penelitian ini adalah untuk mensintesis silika gel-Cu(II) berbasis limbah geothermal PLTPB Dieng serta menentukan pengaruh variasi konsentrasi Cu(II) dan waktu aging terhadap aktivitas antibakteri Escherichia coli dan Staphylococcus aureus. Natrium silikat diperoleh dari limbah geothermal melalui ekstraksi alkali dan selanjutnya dilakukan sintesis silika gel-Cu(II) melalui metode sol-gel dengan adanya penambahan CuSO4 dalam berbagai variasi konsentrasi dan waktu aging. Hasil penelitian menunjukkan bahwa silika gel-Cu(II) telah berhasil disintesis. Material katalis memiliki ukuran <10 µm dan berwarna biru muda. Studi aktivitas antibakteri menunjukkan silika gel-Cu(II) dengan konsentrasi CuSO4 0,5 M dan waktu aging 84 jam memiliki aktivitas antibakteri paling baik. Berdasarkan pengamatan diameter zona bening, diketahui bahwa efektifitas silika gel-Cu(II) 0,5 M dalam menghambat pertumbuhan bakteri Staphylococcus aureus lebih tinggi dibandingkan dengan Escherichia coli. 
Co-Authors Anggi Arista, Rini Choiril Azmiyawati Dian Nugraheni Eko Sri Kunarti Nurul Qomaliyah, Eka Pambudi, Fajar Inggit Pardoyo Pardoyo SUGIYANTO Yayuk Mulyati