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All Journal Jurnal Sosioteknologi Journal of Visual Art and Design Jurnal Dampak Journal of Science and Applicative Technology Bulletin of Chemical Reaction Engineering & Catalysis
Nugraha, Ashari Budi
Kelompok Keahlian Teknik Fisika, Fakultas Teknologi Industri, Institut Teknologi Bandung
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Isolasi Nanoselulosa Terkarboksilasi dari Limbah Kulit Pisang Ambon Lumut dengan Metode Oksidasi Ashari Budi Nugraha; Ahmad Nuruddin; Bambang Sunendar
Journal of Science and Applicative Technology Vol 5 No 1 (2021): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/jsat.v5i1.413

Abstract

In this study, banana peel from ambon lumut (Musa acuminata) was used as source for nanocellulose fibers. Carboxylated nanocellulose was isolated with oxidation method using ammonium persulfate (APS). In order to investigate the effect of temperature towards the characteristics of nonocellulose, temperature for oxidation process was set at three different values: 60 °C, 70 °C, dan 80 °C. Nanostructure of cellulose was observed as a mix of fibers and whiskers from transmission electron microscopy (TEM) images. The diameter of nanocellulose is ranging from 12,1 to 25,1 nm. Data from spectrometry graphs (FTIR) confirms the existence of carboxyl functional groups in nanocellulose samples. X-ray diffraction pattern (XRD) shows that crystallinity index values increase as temperature of oxidation process increases. The highest crytallinity index value of 72,4% was obtained from nanocellulose treated with oxidation temperature of 80 °C. This analysis shows banana peel waste as a potential alternative source for carboxylated nanocellulose.
Synthesis of Spherical Nanostructured g-Al2O3 Particles using Cetyltrimethylammonium Bromide (CTAB) Reverse Micelle Templating Didi Prasetyo Benu; Veinardi Suendo; Rino Rakhmata Mukti; Erna Febriyanti; Fry Voni Steky; Damar Rastri Adhika; Viny Veronika Tanuwijaya; Ashari Budi Nugraha
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.3.3855.542-550

Abstract

We demonstrated the synthesis of spherical nanostructured g-Al2O3 using reverse micelle templating to enhance the surface area and reactant accessibility. Three different surfactants were used in this study: benzalkonium chloride (BZK), sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB). We obtained spherical nanostructured particles only using CTAB that form a reverse micelle emulsion. The particles have wide size distribution with an average size of 2.54 mm. The spherical particles consist of nanoplate crystallites with size 20-40 nm randomly arranged forming intercrystallite spaces. The crystalline phase of as-synthesized and calcined particles was boehmite and g-Al2O3, respectively as determined by XRD analysis. Here, the preserved particle morphology during boehmite to g-Al2O3 transformation opens a facile route to synthesize g-Al2O3 particles with complex morphology. The specific surface area of synthesized particles is 201 m2/g, which is around five times higher than the conventional g-Al2O3 (Aldrich 544833). Spherical nanostructured g-Al2O3 provides wide potential applications in catalysis due to its high density closed packed structure, large surface area, and high accessibility. 
bcl Morphology Formation Strategy on Nanostructured Titania via Alkaline Hydrothermal Treatment Fry Voni Steky; Veinardi Suendo; Rino Rakhmata Mukti; Didi Prasetyo Benu; Muhammad Reza; Damar Rastri Adhika; Viny Veronika Tanuwijaya; Ashari Budi Nugraha
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.3.3853.513-520

Abstract

Titanium dioxide (TiO2) is a semiconductor material that plays an important role in photocatalysis. Bicontinuous concentric lamellar (bcl) is an interesting morphology with an open channel pore structure that has been successfully synthesized on silica-based materials. If bcl morphology can be applied in TiO2 system, then many surface properties of TiO2 can be enhanced, i.e. photocatalytic activity. A simple and effective strategy has been demonstrated to transform aggregated and spherical TiO2 particles to bcl morphology via alkaline hydrothermal route. Alkaline hydrothermal treatment successfully transforms TiO2 particle surface to have bcl morphology through swelling with ammonia then followed by phase segregation process. We proposed this strategy as a general pathway to transform the particle surface with any shape to have bcl morphology. 
Studi Pengolahan Air Limbah Batik pada Skala Industri Rumah Tangga dan Usaha Kecil Menengah di Cirebon, Indonesia Diyah, Nazuwatussya’; Ratuannisa, Tyar; Ekawati, Estiyanti; Yulia, Elfi; Purwasasmita, Bambang Sunendar; Nugraha, Ashari Budi
Dampak Vol 20, No 1 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.20.1.8-15.2023

Abstract

Since the admission of batik as a world cultural heritage by the United Nations Educational, Scientific and Cultural Organization, the public interest in batik and the batik industry has been increasing. However, the problem arises when the development of the batik industry is not accompanied by batik wastewater treatment that fits the wastewater quality standard. Hence it causes environmental pollution, especially for the aquatic body. This paper discusses the conditions and awareness for batik wastewater treatment in the batik industry on household and small-to-medium scales in Plered District, Cirebon, Indonesia. It examines the pollutant load of batik wastewater in the area, the respondent's knowledge about wastewater processing systems, wastewater impact on the environment, and the need for education about batik wastewater treatment plants (WWTPs). The examination of wastewater samples showed that batik wastewater did not meet the waste quality standards and potentially harmed the environment. The respondents generally use synthetic dyes, and were unaware of its impact on the surrounding environment. Keyword: batik, WWTPs, batik production process, dye, wastewater impact  ABSTRAK Sejak ditetapkannya batik sebagai warisan budaya dunia oleh United Nations Educational, Scientific and Cultural Organization, minat masyarakat terhadap batik dan industri batik semakin meningkat. Namun permasalahan muncul ketika pengembangan industri batik tidak dibarengi dengan pengolahan air limbah batik yang sesuai dengan baku mutu air limbah. Oleh karena itu menyebabkan pencemaran lingkungan, terutama untuk badan air. Tulisan ini membahas tentang kondisi dan kesadaran pengolahan air limbah batik pada industri batik skala rumah tangga dan kecil-menengah di Kecamatan Plered, Cirebon, Indonesia. Kajian ini mengkaji beban polutan air limbah batik di wilayah tersebut, pengetahuan responden tentang sistem pengolahan air limbah, dampak air limbah terhadap lingkungan, dan perlunya penyuluhan tentang Instalasi Pengolahan Air Limbah (IPAL) batik. Pemeriksaan sampel air limbah menunjukkan bahwa air limbah batik tidak memenuhi baku mutu limbah dan berpotensi merusak lingkungan. Responden umumnya menggunakan pewarna sintetis, dan tidak mengetahui dampaknya terhadap lingkungan sekitar. Kata kunci: COD, elektrokoagulasi, elektroda aluminium, air limbah tahu, monopolar.      
Nature Inspired Fashion: The Design of Patterned Fabrics Inspired by the Ylang-Ylang (Cananga odorata) Flower with the Application of Fragrance Microencapsulation using Biomimicry Indriani, Innamia; Canthika Noor Ramadhania Henesh, Qyara; Ratu Falysha, Jauza; Puspa Indira Bhatari, Ratu; Seroga Bara Pramesta, Daniel; Az-Zahra, Hasya; Budi Nugraha, Ashari; Ilma Sakina, Sabrina; Sunarya, Yan Yan
Journal of Visual Art and Design Vol. 17 No. 2 (2025): Journal of Visual Art and Design
Publisher : ITB Journal Publisher, DRPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.vad.2025.17.2.1

Abstract

Innovation in fragrance textiles reflects growing awareness of health, well-being, and aesthetic value. Nature has long served as a source of inspiration for designers and researchers, offering guidance for product innovation. Scents and fragrances are known to contribute positively to human well-being, and advances in textile technology have enabled the application of fragrance finishes through microencapsulation techniques. While visual appearance and fabric durability remain primary considerations for consumers, floral patterns—among the oldest and most favored textile design elements—continue to play an important role. This research employs mixed qualitative and quantitative methods to develop specialized textile products in the form of flower-patterned fabrics inspired by traditional Indonesian flora, specifically ylang-ylang (Cananga odorata). The study applies a biomimicry approach by using the ylang-ylang flower as both a visual and olfactory reference in textile design. Pattern development was combined with fragrance incorporation using a microencapsulation technique with PEG 6000 as the encapsulating agent. The resulting textile features a ylang-ylang floral pattern and releases a distinctive scent resembling the natural flower in bloom. This approach demonstrates the potential of integrating visual and sensory elements in textile design and supports future development of fragrance textile products to enhance consumer engagement.
Analisis Teknokultur Pengelolaan Air Limbah Batik di Cirebon Selama dan Setelah Pandemi COVID-19 Nazuwatussya’diyah, Nazuwatussya’diyah; Ekawati, Estiyanti; Nugraha, Ashari Budi; Yulia, Elfi; Srie Rejeki, Eggie Rizki
Jurnal Sosioteknologi Vol. 25 No. 1 (2026): MARCH 2026
Publisher : Fakultas Seni Rupa dan Desain ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/sostek.itbj.2026.25.1.1

Abstract

Public perception of the need for batik has declined since the COVID-19 pandemic. It significantly reduced the quantity of batik sales and production, with many industries ceased production. Therefore, relevant strategies integrating technology and culture were needed to maintain the resilience and sustainability of batik businesses. This paper presents the techno-culture view of three aspects of the batik industry: the production process, marketing, and management of batik wastewater. To capture the current conditions, field surveys using qualitative methods in questionnaires and interviews with batik respondents were carried out twice in Trusmi, Cirebon, during and after the COVID-19 pandemic. The survey results were presented, comparing wastewater characteristics during and after the pandemic to determine whether there were significant differences in the wastewater management process between the two periods. The priority of wastewater management strategy was analyzed using the Analytical Hierarchical Process, and it was found that the main priority was the environment (0.58), followed by social (0.23), economy (0.15), and institution (0.05). In addition, the Water Quality Index in the sample has a value range of 47 (Class III/Fair) to 69 (Class IV/Poor/Marginal).
Co-Authors Ahmad Nuruddin Az-Zahra, Hasya Bambang Sunendar Bambang Sunendar Purwasasmita, Bambang Sunendar Benu, Didi Prasetyo Canthika Noor Ramadhania Henesh, Qyara Damar Rastri Adhika Diyah, Nazuwatussya’ Ekawati, Estiyanti Erna Febriyanti Fry Voni Steky Ilma Sakina, Sabrina Innamia Indriani Muhammad Reza Nazuwatussya’diyah, Nazuwatussya’diyah Puspa Indira Bhatari, Ratu Ratu Falysha, Jauza Ratuannisa, Tyar Rino Rakhmata Mukti Seroga Bara Pramesta, Daniel Srie Rejeki, Eggie Rizki Veinardi Suendo Viny Veronika Tanuwijaya Viny Veronika Tanuwijaya Yan Yan Sunarya Yulia, Elfi