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All Journal VALENSI JURNAL KIMIA SAINS DAN APLIKASI Jurnal Ilmu Lingkungan EDUSAINS Bulletin of Chemical Reaction Engineering & Catalysis JINOP (Jurnal Inovasi Pembelajaran) EduChemia: Jurnal Kimia dan Pendidikan Jurnal Penelitian dan Pembelajaran IPA Edu Sains: Jurnal Pendidikan Sains dan Matematika Jurnal Penelitian Pendidikan Kimia ALCHEMY Jurnal Penelitian Kimia Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia JKPK (Jurnal Kimia dan Pendidikan Kimia) Jurnal Riset Pendidikan Kimia (JRPK) Fullerene Journal of Chemistry Jurnal Pendidikan JPPIPA (Jurnal Penelitian Pendidikan IPA) LAVOISIER: Chemistry Education Journal Cendikia Pendidikan Bulletin of Chemical Reaction Engineering & Catalysis Journal of Education Sciences (Edusci) LAVOISIER: Chemistry Education Journal Journal of Chemistry Sciences and Education
Nanda Saridewi, Nanda
Departement Of Chemistry Education, Faculty Of Educational Science, Syarif Hidayatullah State Islamic University Of Jakarta, Indonesia, 15412
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Social Sciences Other

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Green Synthesis of Cu-BDC Nanosheets for Methylene Blue Degradation Saridewi, Nanda; Zulys, Agustino; Bakri, Ridla
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 4 Year 2025 (December 2025) (In Progress Issue)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20458

Abstract

Metal Organic Frameworks (MOFs) with two-dimensional (2D) nanosheet morphology possess unique surface characteristics, making them highly favourable for photocatalytic applications. This study synthesised Cu²⁺-based MOF nanosheets using a modified three-layer method. This approach is relatively simple, energy-efficient, and qualifies as a green synthesis method. The MOFs were prepared from copper(II) nitrate trihydrate (Cu(NO₃)₂·3H₂O) as the metal precursor and 1,4-benzenedicarboxylic acid (H₂BDC) as the organic linker, aiming to evaluate their photocatalytic activity for methylene blue degradation. The resulting Cu-BDC nanosheets displayed characteristic FTIR absorption bands at 1501 and 1547 cm⁻¹ corresponding to symmetric and asymmetric C=O stretching, 1394 cm⁻¹ for C–O stretching, and peaks at 751 and 569 cm⁻¹ associated with Cu–O vibrations. The XRD analysis revealed four sharp peaks at 2θ values of 8.2°, 10.2°, 16.1°, and 34.1°, indicating good crystallinity with a calculated crystallite size of 22.03 nm, and the bandgap energy is 3.89 eV. Cu-BDC nanosheets exhibit a thin sheet morphology with elemental compositions of carbon 73.08%, oxygen 11.19%, and copper 15.73%. Cu-BDC nanosheets exhibit optimal degradation activity at pH 13, with an optimal catalyst dose of 5 mg and an initial dye concentration of 20 ppm, achieving a degradation capacity of 98.62 mg/g after 120 minutes of reaction. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Natural Zeolite as Mo and MoP Catalysts Support for Catalytic Deoxygenation of Jatropha Oil Aziz, Isalmi; Farhan, Muhammad; Saridewi, Nanda; Azizah, Yulyani Nur; Muawanah, Anna; Nurbayti, Siti; Dwiatmoko, Adid Adep; Adhani, Lisa
Jurnal Kimia Valensi Vol. 11 No. 1 (2025): Jurnal Kimia VALENSI
Publisher : Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v11i1.45272

Abstract

Non-edible oil, such as Jatropha oil, is an interesting feedstock for the development of renewable diesel (green diesel). Catalytic deoxygenation using natural zeolite-supported Mo-based catalysts is a promising process for the conversion of Jatropha oil to green diesel. Mo and MoP catalysts supported on natural zeolite were synthesized by wet impregnation at a concentration of 5% (w/w). The catalysts were characterized by XRD, XRF, SAA and NH3-TPD. The catalysts were successfully synthesized with the appearance of Mo and MoP peaks on the catalyst diffractogram. XRF results also showed that Mo and P were present in the catalyst. Metal impregnation decreased the surface area and pore volume of the catalyst, but increased the average pore diameter. The NH3-TPD profile of the catalyst showed that the weak acid sites of both catalysts were larger than the strong acid sites. Based on the activity test of catalytic deoxygenation of Jatropha oil, the MoP/HZ catalyst produced a higher conversion (67%) and liquid product yield (79%) than Mo/HZ. This is associated with a larger pore diameter, so that the distribution of reactants on the catalyst surface is more optimal. However, the highest green diesel selectivity of 82% is produced by the Mo/HZ catalyst. The Mo/HZ catalyst is more oriented towards the HDO reaction, whereas the MoP/HZ catalyst is more oriented towards the DCO/DCO2 reaction.
Development of Science Process Skill (KPS) Assessment in POE (Predict, Observe and Explain) Learning in Acid-Base Titration Gunawan, Ricky; Feronika, Tonih; Saridewi, Nanda
LAVOISIER: Chemistry Education Journal Vol 2, No 1 (2023): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v2i1.7962

Abstract

This research was about the development of an instrument assessment of skills the process of science in learning POE (predict, observe and explain) in titration acid bases, in significance this assessment instruments contains aspect of science process skills i.e. aspect of observation, classification, interpretation, prediction, making the question, hypotheses, design experiments, using tools and materials, applying concepts and communicate that categorized on stage learning POE. This assessment instruments was developed to the matter titration acid bases based on the analysis of KD in 2013 curriculum. Research methodology used is DDR (design and development research). The assessment is an instrument developed through 3 stages, namely: (1) study design (concept of a development), (2) stages of development, and (3) stages of evaluation. The purpose of this research is to produce an instrument for skill process of science in learning POE on titration acid base. This research include the development and products finally tested to 22 respondents by 22 students class XI MA Dharma Karya UT, South Tangerang. Based on the data so can be concluded this instrument has characteristics: assessment is organized by using stage POE, now housed assessment ten aspects skill the process of science, now housed assessment discourses whose characteristics are in accordance with matter or the concept of titration acid bases and environment students as well as this assessment use rubrics with scales 0-4 for diplomatic learning can be assessed in detail. Based on the percentage the average from the validation the people of, pilot products and chief responsi teachers, products this assessment get the percentage an average of 84,71 % and into category is very good.
Development of Science Process Skill (KPS) Assessment in POE (Predict, Observe and Explain) Learning in Acid-Base Titration Gunawan, Ricky; Feronika, Tonih; Saridewi, Nanda
LAVOISIER: Chemistry Education Journal Vol 2, No 1 (2023): LAVOISIER: Chemistry Education Journal
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v2i1.7962

Abstract

This research was about the development of an instrument assessment of skills the process of science in learning POE (predict, observe and explain) in titration acid bases, in significance this assessment instruments contains aspect of science process skills i.e. aspect of observation, classification, interpretation, prediction, making the question, hypotheses, design experiments, using tools and materials, applying concepts and communicate that categorized on stage learning POE. This assessment instruments was developed to the matter titration acid bases based on the analysis of KD in 2013 curriculum. Research methodology used is DDR (design and development research). The assessment is an instrument developed through 3 stages, namely: (1) study design (concept of a development), (2) stages of development, and (3) stages of evaluation. The purpose of this research is to produce an instrument for skill process of science in learning POE on titration acid base. This research include the development and products finally tested to 22 respondents by 22 students class XI MA Dharma Karya UT, South Tangerang. Based on the data so can be concluded this instrument has characteristics: assessment is organized by using stage POE, now housed assessment ten aspects skill the process of science, now housed assessment discourses whose characteristics are in accordance with matter or the concept of titration acid bases and environment students as well as this assessment use rubrics with scales 0-4 for diplomatic learning can be assessed in detail. Based on the percentage the average from the validation the people of, pilot products and chief responsi teachers, products this assessment get the percentage an average of 84,71 % and into category is very good.
Co-Authors Abdul Rifki Achmad Yandi Rahmatul Fajri Adawiah Adawiah Adawiah Adawiah Adawiah Adawiah adawiah adawiah, adawiah Adelian Risa Adinda Admin Alif Agustino Zulys Ai Fiyani Aini Nadhokhotani Herpi Anna Muawanah Aqsha Pandia Swangganegara Aulia, Hanna Bahriah, Evi Sapinatul Bale, Uly Fitria Biaunik Niski Kumila Buchori Muslim Buchori Muslim Dasumiati Dasumiati Dede Sukandar Dedi Irwandi Desy Rositasari Dila Fairusi Dila Salsabila Dinnah Raihanah Dwiatmoko, Adid Adep Dwie Annisa Dzikri Anfasa Firdaus Edra Aditya Fhilipia Ardine Erica Anna Pratiwi Fadhilla, Rizka Fajri, Achmad Yandi Rahmatul Farah, Sabrina Farhan Maulana Azhar Farishi, Salman Fitri Febriyani Fitria, Shella Herpi, Aini Nadhokhotani Humaeroh, Ika Iman, Nurul Isalmi Aziz Latifah Tulhusna Lian Risa Adinda, Ade Lily Surayya Eka Putri, Lily Surayya Eka Lisa Adhani Lisa Adhani Lisa Adhani Luki Yunita Mardiyah, Farah Fathiaty Muhammad Farhan Muhammad Shofyan Gunawan Munasprianto Ramli Nabila Fauziah Nadhokhotani Herpi, Aini Nine Novita Cahya Niski Kumila, Biaunik Nur Azizah, Dinda Nur Hikmah Nur Hikmah Nurhasni Nurhasni Rahayu, Putri Ramadhan, Fitri Nur Ramli, Munasprianto Ricky Gunawan, Ricky Ridla Bakri Risma Nur Fitria Riyanti, Aditya Rizki Nurhidayah Rizkyani, Arivia Monique Rizqy Nur Solihat Saeful Rohman Salamah Agung, Salamah Sari, Nur Nilam Selviana Rustanti Siti Nurbayti Siti Nurbayti Siti Nurbayti Siti Nurbayti Siti Suryaningsih, Siti Solly Aryza Sri Komala Sri Komala Suryadi, Joko Susilo, Ahmad Syukri Arif Tonih Feronika, Tonih Tulhusna, Latifah Wahyu Permata Wulandari Oktavia Yessinta Kurnianti Yulyani Nur Azizah