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All Journal Jurnal Sains Materi Indonesia World Chemical Engineering Journal FLYWHEEL : Jurnal Teknik Mesin Untirta JURNAL INTEGRASI PROSES Teknika: Jurnal Sains dan Teknologi Jurnal Teknik Kimia Indonesia
Kustiningsih, Indar
Departemen Teknik Kimia, FT-UI Kampus Baru UI, Depok 16424 Jurusan Teknik Kimia , FT-Universitas Sultan Ageng Tirtayasa, Jl. Jenderal Sudirman Km. 3, Cilegon 42435
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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Journal : World Chemical Engineering Journal

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Engineering and Fabrication of TiO2 Photocatalyst: review Pujiastuti, Hendrini; Kustiningsih, Indar
World Chemical Engineering Journal VOLUME 8 NO.1 JUNE 2024
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/wcej.v8i1.25787

Abstract

The photocatalytic reactions occurring on the surface of TiO2 photocatalysts are crucial factors determining the kinetics and mechanisms of photocatalytic reactions. Photocatalyst engineering, especially of TiO2, is important due to various applications in photocatalytic processes. This review paper presents the engineering of materials and fabrication processes for TiO2 photocatalysts. Material catalyst engineering includes the development of TiO2 composites with magnetic materials, other additives, and doping. With the development of the chitosan-TiO2 coating to create the nanocomposite film, red grapes could be effectively protected against microbial infection and have their shelf life increased. F-doping on TiO₂ can increase the amount of photocatalytic oxidative species, encourage electron separation, and improve visible light absorption. To improve the effectiveness of removing the photocatalyst from the treated liquid waste once the procedure is finished, magnetic particles are added to photocatalysts. Fabrication methods for TiO2 modification to obtain specific crystal structures, including hydrothermal methods, anodization, and template-assisted techniques, will also be discussed. Another important factor is the duration of the hydrothermal treatment; nanotubes are generated after more than 12 hours. In contrast to diluted solutions, longer nanotubes will be produced during the Ti anodization process when concentrated electrolyte solutions, such as ethylene glycol and glycerol, are used.
Evaluating Emulsion Dynamics: The Role of Surfactants and Mixing Conditions in Non-Baffled Configurations Kanani, Nufus; Kustiningsih, Indar; Wardhono, Endarto Yudo; Wardalia, Wardalia; Heriyanto, Heri; Adiwibowo, Muhammad Triyogo; Rusdi, Rusdi; Hartono, Rudi; Demustila, Harly; Damayanti, Demietrya Renata Sashi; Maulida, Alyssa Shafira; Priyatna, Aufa Irsyad
World Chemical Engineering Journal VOLUME 8 NO. 2 DECEMBER 2024
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v8i2.30085

Abstract

The study investigates the impact of surfactant concentration and mixing time on the physical properties and stability of emulsions in non-baffle mixing systems. Surfactants, known for their ability to reduce interfacial tension, play a pivotal role in enhancing emulsion stability by promoting uniform droplet dispersion and reducing coalescence. Experiments were conducted using varying surfactant concentrations (0, 5, and 10 mL) to evaluate their effects on key parameters such as density, viscosity, Reynolds number, emulsion height, and stability over time. The results revealed that higher surfactant concentrations significantly improved emulsion uniformity and stability, with the 10 mL concentration yielding the most consistent outcomes. However, the absence of baffles introduced challenges, including prolonged mixing times and stratification tendencies, underscoring the need for optimized mixing configurations. These findings have practical implications for industries reliant on stable emulsions, highlighting the importance of balancing surfactant concentration and mixing dynamics to achieve efficient and cost-effective processes.
Co-Authors Ade Risma Lestari Alia Badra Pitaloka Annas Eko Oktawiyono Anton Irawan Arif Satriya Wijayanto Astuti, Diah Athia Hasna Chatarina Umbul Wahyuni Damayanti, Demietrya Renata Sashi Dandi Irwanto Denni Kartika Sari Denni Kartika Sari Denni Kartika Sari Denni Kartika Sari Denni Kartika Sari Dian Mustofa Dita Widya Anggraeni Endarto Yudo Endarto Yudo Wardhono Euis Uswatun Hasanah Fakhri Muhammad Hani Mulyani Harly Demustila Heri Heriyanto Heri Heriyanto Heriyanto, Heri Hilda Mareta Ila Maghfirotul Fahira Indira Paramita Jayanudin Jayanudin Kanani, Nufus Laila Kristina Hendrawan Maughal Ahmed Ali Baig Maulana Suyuti Maulida, Alyssa Shafira Meli Amiati Meri Yulvianti Mila Audina Muhammad Gofar Muhammad Triyogo Adiwibowo Nufus Kanani Oktavia, Endah Priyatna, Aufa Irsyad Pujiastuti, Hendrini Retno Sulistyo Dhamar Lestari Retno Sulistyo Dhamar Lestari Retnosulistyo Dhamar Lestari Reyonaldo Langgeng Adi Wardana Ria Restiani Rosihan Apris Eko Prastyo Rozak Bahaudin Rudi Hartono Rusdi Rusdi Rusdi, Rusdi Slamet . Slamet Slamet Slamet Slamet Solly Aryza Tati Jumiarti Teja Raharja Wardalia Wardalia Wardalia, Wardalia WidodoWahyu Purwanto Widya Ernayati Kosimaningrum