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All Journal VALENSI JURNAL KIMIA SAINS DAN APLIKASI AWLADY Jurnal Pendidikan Anak Al Ishlah Jurnal Pendidikan Jurnal Pendidikan Kimia (JPKim) Indonesian Journal of Chemistry Molekul: Jurnal Ilmiah Kimia JKPK (Jurnal Kimia dan Pendidikan Kimia) Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING
Nanik Dwi Nurhayati
Chemistry Education Study Program, Faculty Of Teacher Training And Education, Sebelas Maret University, Jl. Ir. Sutami 36A, Surakarta 57126
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Other

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Synthesis and Characterization of Chitosan-HPMC-Methylparaben Hydrogel Film as an Antibacterial Wound Dressing Material Endang Susilowati; Sulistyo Saputro; Lina Mahardiani; Nanik Dwi Nurhayati; Budi Hastuti; Wirawan Ciptonugroho; Dealories Qhurbasy Masyhuri; Ndiayu Ajeng Gareta; Izza Laila Nur Rohmah
Jurnal Kimia Sains dan Aplikasi Vol 29, No 6 (2026): Volume 29 Issue 6 Year 2026
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.29.6.414-422

Abstract

Chitosan-HPMC-methylparaben hydrogel film has been successfully synthesized. Chitosan, a key component with desirable characteristics for the production of hydrogel films, has some shortcomings that can be overcome by adding HPMC, a commonly used gelling agent that improves the physical properties of hydrogel films, and methylparaben, which enhances mechanical properties and antibacterial activity. The physical properties test of the hydrogel film, i.e., the solubility and swelling test, showed that the addition of HPMC reduced the solubility ratio and increased the swelling ratio in the chitosan hydrogel film. The addition of methylparaben relatively increases the antibacterial activity, tensile strength, and elongation of chitosan-HPMC-methylparaben hydrogel films. The chitosan-HPMC-methylparaben dry film exhibits a tensile strength of 19.56 MPa and an elongation of 1.98%. Surface morphological characterization of the hydrogel film through SEM tests showed that the chitosan-HPMC-methylparaben hydrogel film has granules on its surface, whereas the chitosan-HPMC hydrogel film has a smooth texture with a flat surface. The addition of methylparaben reduces the degree of crystallinity and produces an amorphous phase. The chitosan-HPMC-methylparaben hydrogel film shows strong activity against S. aureus and E. coli. Based on these results, the hydrogel film can be considered an antibacterial material for wound dressings, although elongation still needs to be improved.
Modification of Polyethylene Glycol and Citric Acid on Palm Fiber Waste Nanofibers on the Adsorption of Violet Crystal Dyes Lina Mahardiani; Nida Damayanti; Rizki Deva Maharani; Sulistyo Saputro; Endang Susilowati; Wirawan Ciptonugroho; Nanik Dwi Nurhayati
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 8, No 3 (2023): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v8i3.80105

Abstract

This study developed nanofibers derived from sugar palm fiber waste, incorporating citric acid and polyethylene glycol (PEG) modifications to adsorb crystal violet (CV) dye. The synthesis process involved alkalization-acid hydrolysis and bleaching techniques. Subsequent analyses of nanofiber characteristics were conducted using Fourier-Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Scanning Electron Microscopy-Energy Dispersive X-ray (SEM-EDX). The efficacy of these modified nanofibers in adsorbing CV was quantitatively measured using an Ultraviolet-Visible (UV-Vis) spectrophotometer. The study successfully synthesized nanofibers from sugar palm fiber waste with modifications: PEG-modified nanofibers (NP 2 and NP 24) and citric acid-modified nanofibers (NS 2 and NS 24). These modifications resulted in nanofibers with a smooth, white texture. FTIR analysis of the samples (N, NP 2, NP 24, NS 2, and NS 24) revealed the presence of functional groups essential for cellulose, specifically -OH, C-H, and C-O groups. The addition of citric acid introduced a new group, C=O, albeit with very weak intensity. PEG modifications were evident from the stretching observed in the -OH groups. SEM analysis confirmed the presence of a layer on the nanofibers, attributed to citric acid (NS 2 and NS 24) and PEG (NP 2 and NP 24). XRD results indicated that the pre-and post-modification nanofibers exhibited a semi-crystalline phase. The adsorption mechanism was predominantly guided by Van der Waals electrostatic interactions between the absorbent material and the adsorbate. Intriguingly, the citric acid and PEG modifications did not significantly alter the adsorption outcomes. The adsorption capacity remained stable over time, as evidenced by measurements of 0, 15, 30, 45, 60, 90, and 120 minutes.
Eco-Friendly Activation of Fe₂O₃/GSBA-15 Using Tamarindus indica Pulp Extract for Enhanced Adsorptive Removal of Methylene Blue and Methyl Orange from Contaminated Water Maria Ulfa; Youlanda Jesiva Alba; Nurma Yunita Indriyanti; Nanik Dwi Nurhayati; Agung C. Saputro
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 4 Year 2026 (December 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20757

Abstract

In this study, a sustainable mesoporous silica material was synthesized using gelatin as a co-template (GSBA-15), followed by the incorporation of iron oxide (Fe₂O₃) to enhance its adsorption performance toward methylene blue (MB) and methyl orange (MO). Tamarindus indica pulp extract (TIE) was employed as a natural and environmentally benign activating agent, providing organic functionalities that facilitated material synthesis and surface modification. The adsorption performance of the synthesized materials, namely GSBA-15 and Fe₂O₃/GSBA-15-TIE, was evaluated using UV–Vis spectrophotometry. Under optimal adsorption conditions, the maximum adsorption capacities for MB were 176.062 and 183.497 mg.g⁻¹ for GSBA-15 and Fe₂O₃/GSBA-15-TIE, respectively. For MO, the corresponding adsorption capacities were 15.582 and 16.000 mg.g⁻¹. Kinetic studies revealed that the adsorption of both dyes was best described by the pseudo-second-order model, suggesting that chemisorption played a dominant role in the adsorption process. The enhanced adsorption performance of Fe₂O₃/GSBA-15-TIE compared with pristine GSBA-15 demonstrates the beneficial effects of iron oxide incorporation and TIE activation. These findings highlight the potential of Fe₂O₃/GSBA-15-TIE as a sustainable and efficient adsorbent for dye removal in wastewater treatment applications. Copyright © 2026 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).
Analysis of Science Literacy Teaching Book Class XI at SMA Negeri Surakarta on Acid-Base Material Nanda Putri Pertiwi; Nanik Dwi Nurhayati; Sulistyo Saputro
THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING Vol 5, No 1 (2022): THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING
Publisher : Institut Agama Islam Negeri Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21043/thabiea.v5i1.11719

Abstract

This descriptive research aims to explain the scope of scientific literacy in chemistry textbooks used in Surakarta. This research data are in the form of quantity from 4 categories of scientific literacy with 26 subcategories as indicators of grouping text units in textbook analysis. The data sources in this study were five textbooks for class XI with different publishers. The technique of taking the object of research uses a purposive sampling technique. Based on the results of data analysis based on the category of scientific literacy, the average results of the proportion of scientific literacy are obtained as follows: (1) Science as a body of knowledge was 69.98% (2 ) Science as a way of an investigation by 14.43% (3) Science as a way of thinking by 10.63% (4) Interaction of science with technology and society by 4.98%. The results of the fulfilment of the scientific literacy category in book A have a ratio of the category of science as knowledge: science as a way of investigation: interaction of science, technology, and society: category of science as a way of thinking that is 9:1:1:1. The ratio in book B is 6:2:0:1, the ratio in book C is 4:2:0:1, the ratio in book D is 9:0:0:1, and the ratio in book E is 6:2:1: 1. Therefore, from the results of this study, the recommended textbook for use is the book E because it includes aspects of scientific literacy that are complete and more balanced than the other four books.
Hard-template synthesis of Ti–V–Mn ternary photocatalysts using gelatin-modified mesoporous silica for efficient methylene blue degradation Maria Ulfa; Sawsan S. Al-Rawi; Ahmad H. Ibrahim; Amellia Ardhany; Wirawan Ciptonugroho; Nanik Dwi Nurhayati; Agung C. Saputro; Muhammad Adnan Iqbal
International Journal of Renewable Energy Development Vol 15, No 6 (2026): November 2026
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2026.62292

Abstract

The rapid expansion of the textile industry, driven by technological progress, has resulted in substantial dye pollution, particularly from methylene blue effluents, which remain highly recalcitrant in aquatic environments. Photocatalysis offers a sustainable and effective pathway for dye degradation, and in this study, Ti–V–Mn ternary photocatalysts were synthesized using a 20% gelatine-modified mesoporous silica hard template. Comprehensive characterization was carried out to establish the relationship between structural and optical properties and photocatalytic performance. XRD revealed that the G–Ti–Mn sample exhibited the highest crystallinity (19.62%), while SEM–EDX confirmed the uniform distribution of all metal precursors. FTIR spectra displayed characteristic M–O vibrations corresponding to Ti–O, V–O, and Mn–O bonding, and UV–Vis DRS showed reduced band gap energies in the range of 1.005–2.39 eV, favoring visible-light activation. BET analysis indicated a typical type IV isotherm, with the G–V–Mn sample exhibiting the highest surface area of 106.67 m²/g and pore diameters of 3.74–4.94 nm, confirming the mesoporous nature of the materials. Photocatalytic evaluation demonstrated that the G–V–Mn system achieved the highest degradation efficiency, removing up to 67.83% of methylene blue under UV–Vis irradiation. These findings highlight the potential of gelatine-assisted mesoporous templates in engineering ternary metal photocatalysts with enhanced structural and optical features for sustainable wastewater treatment applications.
Co-Authors . Haryono Agung C. Saputro Agung C. Saputro Agung Nugaraha Catur Saputro Agung Nugroho CS Ahmad H. Ibrahim Aini, Nurul Alfiyan Wahyudianto Sarjono Amellia Ardhany Anisa Ayu Solikah Antuni Wiyarsi Ari Syahidul Shidiq Ari Syahidul Shidiq Arifah, Karina Nurcahyani Ashadi, . Ashadi, Ashadi Asiyah, Siti Astuti, Fera Atmanto Heru Wibowo Baki Mulyani Budi Hastuti Budi Hastuti Budi Hastuti Budi Utami Candra Purnawan Catur Saputro, Agung Nugroho Ciptonugroho, Wirawan Daro'aeni, Faizatul Dealories Qhurbasy Masyhuri Deny Irawati Diah Megasari Tyasning Dimas Gilang Ramadhani Dimas Gilang Ramadhani Endang Susilowati Endang Susilowati Endang Susilowati Endang Susilowati Endang Susilowati Fa'ari Salsabila Fadliana, Hanik Nur Fajar Sanubari Fauzizah, Ulfa Haryono Haryono Haryono, Haryono Hayuni Retno Widarti Henning Storz Heri Setyoko Islamic, Andre Reza Isma Aziz Fakhrudin Izza Laila Nur Rohmah JS. - Sukardjp Kristi, Lela Widya Kurniawan, Yunita Laksono, Pandu Jati Lina Mahardiani Lina Mahardiani Lina Mahardiani Lina Mahardiani Maria Ulfa Martini, Kus Sri Mega Candra Dewi Mohammad Masykuri Muhammad Adnan Iqbal Mulyani, Bakti Mulyani, Sri Nanda Putri Pertiwi Ndiayu Ajeng Gareta Nida Damayanti Ninis Makhnunah Nugraheni, Wulan Nur Fitri Fatimah Nuraeni, Hana Nurma Yunita Indriyanti Nusantara, Kristin Wijaya Palupi, Anisa Sekar Permatasari, Aprilia Intan Prasetyoningrum, Rahma Prihantoro, Alita Selvi Putri, Gabriella Yovi Pratama Putri, Intan Puspasari Redjeki, Tri Redjeki, Tri Rezeki, Rina Dwi Rizki Deva Maharani Rohmah, Iftitahur Rositawati, Henny Salsabila, Fa'ari Sari, Dewi Nourmala Sari, Yekti Kartika Sawsan S. Al-Rawi Septi Nurlaeli, Septi Sri Mulyani Sri Retno Dwi Ariani Sri Yamtinah Sukardjo, J. S. Sulistyo Saputro Suryadi Budi Utomo Tania Oktabri Kharisma Wijayanti, Dian Windiasty, Ananda Dea Wirawan Ciptonugroho Wirawan Ciptonugroho Wirawan Ciptonugroho Youlanda Jesiva Alba Yunita Kurniawan Yunitasari, Wahyu