Indonesia Conference Directory

Corresponding Author
Mitra Djamal

Institutions
Department of Physics, InstitutTeknologi Bandung, Bandung, Indonesia

Abstract
The rapid development of agricultural products industry in Indonesia presents a new challenge for the industry. The high demand for agricultural products makes the industry must think to manage the plantations more effectively and efficiently. One of the problems in plantations is the process and procedure of weighing agricultural products. At this time the process of weighing agricultural products takes a long time and a long procedure. In the industry, processes and procedures for weighing agricultural products as they are today being considered inefficient. Direct weighting at the time of collection is assessed to be rapid and highly beneficial to the industry. But there is a problem when weighing is done directly. If weighing is done directly at the time of collection, then the weighing is done under dynamic conditions. To be able to solve the problems in weighing the agricultural products then proposed a study to build a dynamic weighing system that can weigh dynamically where direct weighing agricultural products can be done at the time of collection. The force transducer will measure the force applied by the weighing system and the load in the form of industrial products. Because the system works in a dynamic state, the forces acting on the force transducer can be calculated using Newtons second law and where is the deformation acceleration of the force transducer which is proportional to the acceleration of the weighing system, is the mass of the weighted system supported by the force transducer and is the mass of the product being weighed. The deformation acceleration of this force transducer is measured using a flat coil.

Keywords
Measuring, Agricultural Product

Topic
Thin film and application

Link: https://ifory.id/abstract/GBQA6rnuR8WE

Corresponding Author
Setia Budi

Institutions
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta
Jl. Rawamangun Muka, Jakarta 13220
Indonesia

Abstract
Copper oxide (Cu2O) is known as a semiconductor that potentially employed as photocatalyst material in synthetic dyes photodegradation. The objectives of this work were to synthesise of Zn-doped Cu2O using electrodeposition technique and to investigate its photocatalysis performance in methylene blue (MB) solution. The electrodeposition processes were carried out in sulfate solution with two different pH, namely 4 and 5. Difference morphologies of hexagonal and pentagonal deposits were formed from the solution with pH 4 and 5, respectively. The deposits were composed by Cu2O and Cu phases, at which the high Cu2O composition was obtained at pH 4. Photodegradation investigation showed that 63.23% and 46.49 % MB was successfully decomposed with Zn-doped Cu2O electrodeposited at pH 4 and 5, respectively. This result indicated that photocatalytic activities of Zn-doped electrodeposited at pH 4 was higher than that of pH 5.

Keywords
Zn-doped Cu2O, electrodeposition, photocatalyst, methylene blue photodegradation

Topic
Thin film and application

Link: https://ifory.id/abstract/ewbDz2ZAr6Gu

Corresponding Author
Motlan Motlan

Institutions
1Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan
Email: motlan[at]unimed.ac.id

Abstract
ZnO thin film has been successfully synthesized by sol-gel spin coating method. The compounds used were zinc acetate, isopropanol, and diethanolamine. The ZnO thin film was grown a FTO glass substrate, and annealed at 500 degree celcius. The variation of the hold time is consecutively 30, 60, 90, 150 minutes. The XRD results show that the ZnO thin film crystal structure is wurtize hexagonal. The smallest crystal size is 22.3 nm when the hold time is 30 minutes. SEM results show the morphology of the thin films is a uniform round granules. The UN-Vis results show that the sharp increase in transmission is in the range of 350 to 400 nm wavelength.

Keywords
ZnO thin film, post annealing hold time, Sol-gel Spin Coating

Topic
Thin film and application

Link: https://ifory.id/abstract/mBTMQgXLDbUV