http://journals.itb.ac.id/index.php/jrdn/issue/feed Journal of Research and Development on Nanotechnology 2021-07-22T06:21:26+07:00 Dr. Grandprix T. M. Kadja kadja@chem.itb.ac.id Open Journal Systems <p style="text-align:justify";><img style="width: 20%; float: left; padding: 0px 10px 0px 10px;" src="https://journals.itb.ac.id/public/site/images/azfairuza/photo_2021-02-25_05-17-28.jpg" alt="cover page of JRDNI" />Journal of Research and Development on Nanotechnology (JRDN) a multidisciplinary peer-reviewed journal, which encompasses all aspects related to the state-of-the-art science and technology of nanosized and nanostructured materials, including their design, synthesis, characterization, functionalization, and application. The application includes, but is not limited to, catalysis, photocatalysis, energy conversion, electronics, medicine, sensor, and drug delivery. Both experimental and computational works are equally encouraged. In addition to original research articles, JRDN offers reviews and perspectives highlighting the recent progress and distinctive views on nanotechnology. The journal also welcomes the discussion of nanotechnology from the educational and societal points of view.</p> http://journals.itb.ac.id/index.php/jrdn/article/view/16534 Hierarchical Porous g-C3N4 as a Photocatalyst Nanomaterial 2021-06-13T05:46:18+07:00 Adhe Aryswan adhearyswan@polibatam.ac.id <p>Heterogeneous photocatalysts are in the spotlight recently, due to the rises of environmental pollution and energy crisis. Graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) material shows a potential photocatalyst with attractive properties such as metal free, low band gap, and high stability. However, the bulk g-C<sub>3</sub>N<sub>4</sub> photocatalytic performance is unsufficient to be work properly in the practical applications. Hierarchical porous nanostructure is one of modification that could be applied to improve the photocatalytic activity. This review discusses the g-C<sub>3</sub>N<sub>4</sub> material as a promising photocatalyst, including other potential modifications to improve its photocatalytic performance</p> 2021-07-22T00:00:00+07:00 Copyright (c) 2021 Journal of Research and Development on Nanotechnology http://journals.itb.ac.id/index.php/jrdn/article/view/16510 First-principles Investigation on the Electronic Structures of Anatase TiO2 codoped with Nitrogen and 3d Transition Metals 2021-06-22T13:00:20+07:00 Ganes Shukri ganes_tf07@itb.ac.id Hasna Afifah hasnafifah@yahoo.com Adhitya Gandaryus Saputro ganda@tf.itb.ac.id Hermawan Kresno Dipojono dipojono@gmail.com <p>By means of first-principles density functional theory (DFT) calculations, we study the effect of introducing Nitrogen and 3<em>d</em> transition metals (<em>viz</em>., Cr, Mn, Fe, Co, Ni) as a pair of co-dopants to the electronic structure of <em>anatase </em>TiO<sub>2</sub>. Herein, our attempt is to mapped the pattern of the impurity states emergence on the band structures and density of states of <em>anatase </em>TiO<sub>2 </sub>for spesicif application such as photocatalysis water splitting. Based on the obtained results, TiO<sub>2 </sub>codoped with (N,Co) or (N,Fe) pairs are expected to be more active and efficient photocatalyst compared to pristine <em>anatase</em> TiO<sub>2</sub> due to their synergistic effect of dopant pairs in lowering the overall anatase TiO<sub>2</sub> band gap and simultaneously hindering the possibility of early charge recombination.</p> 2021-07-22T00:00:00+07:00 Copyright (c) 2021 Journal of Research and Development on Nanotechnology http://journals.itb.ac.id/index.php/jrdn/article/view/16667 X-ray Diffraction Peak Profile for Determination of Microstructural Properties of Hematite (Fe2O3) 2021-07-13T11:35:49+07:00 Moh Mualliful Ilmi ilmi.kimia@gmail.com Nadya Nurdini nadyanurdini71@gmail.com Evi Maryanti evimaryantiunib82@gmail.com Pindi Setiawan pindisp@yahoo.com Ismunandar Ismunandar ismu@chem.itb.ac.id <p>Hematite (a-Fe<sub>2</sub>O<sub>3</sub>) nanoparticles have been synthesized by chemical co-precipitation method at room temperature and characterized by X-ray diffraction (XRD) study. The XRD pattern indicates that synthesis hematite NPs exhibited pure phase with hexagonal wurtzite geometry. Crystallite size calculated using Scherrer formula has been compared with that estimated by Several Williamson-Hall methods i.e., uniform deformation model (UDM), uniform stress deformation model (USDM) and uniform deformation energy density model (UDEDM), and also by size-strain plot (SSP) method. The lattice strain has also been calculated. The morphology of the product have been characterized by Transmission electron microscopy (TEM). Through the TEM image, the grain size distribution of the hematite nanoparticles was obtained using Image-J software. Among all the methods, SSP method shows highest linear fit with experiment data.</p> 2021-07-22T00:00:00+07:00 Copyright (c) 2021 Journal of Research and Development on Nanotechnology http://journals.itb.ac.id/index.php/jrdn/article/view/16425 CO2 Hydrogenation Mechanism on Graphene-supported Subnanometer Ni7 Cluster 2021-06-08T17:07:27+07:00 Adhitya Gandaryus Saputro ganda@tf.itb.ac.id Mochammad Rizky Pradana mochamadrizkypradana@gmail.com Arifin Luthfi Maulana arifinluthfi50@gmail.com Mohammad Kemal Agusta kemal@fti.itb.ac.id Hermawan Kresno Dipojono dipojono@tf.itb.ac.id <p>We study the mechanism of carbon dioxide (CO<sub>2</sub>) hydrogenation to carbon monoxide (CO) and formic acid (HCOOH) on a graphene-supported subnanometer Ni<sub>7</sub> cluster by means of density functional theory calculations. We find that this system has similar activation energies for the first CO<sub>2</sub> hydrogenation step for the formate and RWGS pathways. However, the second hydrogenation step for these pathways has very distinct profiles. The HCOOH formation on the formate pathway has very large activation energy, while the CO formation on the RWGS pathway has negligible activation energy. We conclude that the CO<sub>2</sub> hydrogenation process on this system is more selective towards the RWGS pathway to produce CO<strong>.</strong></p> 2021-07-22T00:00:00+07:00 Copyright (c) 2021 Journal of Research and Development on Nanotechnology http://journals.itb.ac.id/index.php/jrdn/article/view/16619 On The Effectiveness of Hierarchical Zeolite Catalyst for Isomerization of Biomass-Derived Compound 2021-07-13T11:34:30+07:00 Noerma Juli azhari noermajuliazhari@gmail.com St Mardiana sitimardianausman@gmail.com Grandprix Thomryes Marth Kadja kadja@chem.itb.ac.id <p>The expansion of catalytic technologies in biomass conversion has received increasing attention due to their promising in the sustainable economy. As the solid acid catalyst, zeolite becomes an excellent catalyst for the isomerization reaction of biomass conversion. Nevertheless, the diffusion limitation results from the micropore channel in zeolite rendering the development of zeolite with the additional pores, known as hierarchical zeolite. Up to now, hierarchical zeolites attract much attention appertain with their outstanding properties in the isomerization reaction. Accordingly, many efforts to fabricate hierarchical zeolites, such as top-down and bottom-up methods, have been conducted and grown over the decades. This review examines the current strategies in designing hierarchical zeolite for biomass isomerization. We mainly dwell on the isomerization process of biomass from cellulosic and fatty acids. This review also provides the future challenges and opportunities of the hierarchical zeolite for further improvement in biomass isomerization research.</p> 2021-07-22T00:00:00+07:00 Copyright (c) 2021 Journal of Research and Development on Nanotechnology