W. B. K. Putri

Sustainable PVA/gelatin nanofibers reinforced with tomato-peel-derived carbon quantum dots for enhanced optical and mechanical properties

Firdausya Danuansa, W. B. K. Putri, Nurfina Yudasarı, Riesca Ayu Kusuma Wardhani et autres

Increased interest in sustainable and biodegradable materials has driven advances in nanotechnology. This study explores the fabrication of nanofibers using polyvinyl alcohol (PVA) integrated with carbon quantum dots (CQDs) obtained from tomato peel waste and gelatin to produce hybrid materials with improved …

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NaCl-assisted Ni(SeO3)·xH2O/NC synthesis as high-performance co-catalyst for highly efficient photocatalytic hydrogen evolution

Riki Subagyo, Yuly Kusumawati, Hasliza Bahruji, Didik Prasetyoko et autres

Rapid recombination hinders the optimal photocatalytic hydrogen evolution reaction (PHER) performance of titanium dioxide (TiO 2 ). Herein, a hydrated nickel selenite/nitrogen-doped carbon (Ni(SeO 3 )·xH 2 O/NC) was combined with TiO 2 to achieve high PHER performance by varying the amount …

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Author response for "QCM-based ammonia gas sensors with electrospun polymer-based nanofibers for liver and kidney disease detection: a mini-review"

Rizky Aflaha, Egadwinanda Nabila Suhandhia Putri, Chlara Naren Maharani, Laila Katriani et autres

Environmentally friendly waterproof and breathable nanofiber membranes with ultra-low pressure drop and high performance

Rizky Aflaha, Chlara Naren Maharani, Yuliyan Dwi Prabowo, Roto Roto et autres

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QCM-based ammonia gas sensors with electrospun polymer-based nanofibers for liver and kidney disease detection: a mini-review

Rizky Aflaha, Egadwinanda Nabila Suhandhia Putri, Chlara Naren Maharani, Laila Katriani et autres

The advanced development of ammonia gas sensors using various sensing platforms has been widely researched, including quartz crystal microbalance (QCM)-based sensors. This review highlights recent research on ammonia gas sensors based on QCM with an electrospun polymer-based nanofiber active layer. The discussion …

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Large Magnetocaloric Effect in Cu-Doped La0.7Ca0.3MnO3 Compounds

T.A. Ho, The‐Long Phan, W. B. K. Putri, S. C. Yu et autres

The structural characterization, and the electronic, magnetic and magnetocaloric properties of polycrystalline samples of La0.7Ca0.3Mn1−xCuxO3 (x = 0, 0.04, 0.06, 0.08) have been investigated. X-ray powder diffraction analysis indicates all samples having an orthorhombic structure, belonging to the Pbnm space group. X-ray …

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Effect of Fe and Ti doping on Mn site of La0.7Ba0.3Mn0.85Fe0.15-xTixO3 as electromagnetic wave absorbing material

Fauzul Ikhsan, Budhy Kurniawan, Dhawud Sabilur Razaq, Dicky Rezky Munazat et autres

Magnetic and Magnetocaloric Properties of SrRu1−xFexO3

T.A. Ho, P.D. Thang, N. T. Dang, W. B. K. Putri et autres

We have systematically investigated the crystalline and electronic structures, magnetic and magnetocaloric properties of polycrystalline SrRu1−xFexO3 (x = 0 and 0.1) samples fabricated by the solid-state reaction method. The X-ray diffraction analyses of the samples indicated single phase orthorhombic perovskite structure. A …

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Superhyrophobicity and antibacterial activity of ZnO nanoparticles coated cotton fabrics

Nining Sumawati Asri, W. B. K. Putri, Rizki R. Elfitra, Anggito Pringgo Tetuko et autres

The superhydrophobic and antibacterial properties of zinc oxide (ZnO) nanoparticles-coated cotton fabric have been investigated. The structures and morphologies of the ZnO nanoparticles were characterized and determined through x-ray diffraction (XRD) and transmission electron microscopy (TEM). ZnO nanoparticles show single phase material …

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Effect of deposition time on the properties of ZnO films fabricated by pulsed laser deposition

W. B. K. Putri, Nurfina Yudasarı, Rico Pratama Putra, Muhammad A. Anugrah et autres

ZnO films deposited with various deposition time, ranging from 50 sec to 3 min, are grown on the Al2O3 substrates using pulsed laser deposition (PLD) technique. The films are deposited with laser energy of 100 mJ, pressure of 50 mTorr and temperature …

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Investigation of electron and phonon transport in Bi-doped CaMnO3 for thermoelectric applications

W. B. K. Putri, Kunchit Singsoog, Supasit Paengson, Muhammad Yusrul Hanna et autres

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Syntheses of ferrofluids using polyethylene glycol (PEG) coated magnetite (Fe3O4), citric acid, and water as the working liquid in a cylindrical heat pipe

Nining Sumawati Asri, Anggito Pringgo Tetuko, Agung Esmawan, Muhammad Addin et autres

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