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All Journal MASALIQ: Jurnal Pendidikan dan Sains Gudang Jurnal Multidisiplin Ilmu Asian Journal of Science, Technology, Engineering, and Art
Patriela, Miftah
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Pengaruh Penambahan Doping Cerium terhadap Nilai Bandgap CuO dengan Metode Sol-Gel Dwiputri, Yumanda; Sanjaya, Hary; Patriela, Miftah
MASALIQ Vol 5 No 2 (2025): MARET
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i2.4873

Abstract

Copper(II) oxide (CuO) has been recognized as a promising semiconductor material for various applications, such as photocatalysis, sensors, and renewable energy devices. However, its efficiency is often limited by a suboptimal bandgap value. This study aims to analyze the effect of cerium doping on the properties of CuO nanoparticles synthesized through the sol-gel process. The sol-gel method ensures a homogeneous doping distribution and produces nanoparticles with a stable structure. The bandgap energy of CuO nanoparticles was determined through characterization using UV-DRS. Cerium was introduced as a dopant in CuO at a concentration of 0.4 mmol, resulting in a bandgap value of 1.26 eV, whereas undoped CuO exhibited a bandgap of 1.35 eV. The analysis indicates that the Ce doping concentration significantly affects the bandgap of CuO nanoparticles, with a reduction observed at 0.4 mmol compared to undoped CuO. This decrease is attributed to symmetry disruption caused by doping, including oxygen vacancies, structural defects, and the presence of impurities that create additional energy levels within the bandgap. Furthermore, uniform microstrain and a smaller particle size contribute to structural disturbances that also influence the bandgap.
Pengaruh Penambahan Doping Vanadium terhadap Nanopartikel SnO₂ Menggunakan Metode Sol-Gel Amsyar, Nadhilah; Sanjaya, Hary; Patriela, Miftah
MASALIQ Vol 5 No 2 (2025): MARET
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i2.5112

Abstract

Semiconductors are materials used to conduct electricity for a certain period of time. SnO2 is an n-type semiconductor that has a wide band gap and is most widely used in technology such as solar cells, batteries, and catalysts. This study aims to analyze the effect of vanadium doping on the properties of SnO2 nanoparticles using the sol-gel method. The sol-gel method can produce a stable vanadium-doped SnO2 surface and has a high surface area. Determination of the band gap energy value in SnO2 was carried out by characterization using UV-DRS. The results of SnO2 doped with vanadium obtained the optimum bandgap value at the addition of vanadium with a concentration of 0.25 mmol, which is 2.25 eV and SnO2 without the addition of vanadium doping has a bandgap value of 3.41 eV. This shows that the addition of vanadium doping can affect the bandgap value of SnO2 nanoparticles. This decrease in the bandgap value is caused by the interaction between the electron band and the delocalization of electrons in the transition ions causing metal ion substitution, which results in a decrease in the bandgap value.
Effectiveness of Diethanolamine (DEA) Addition on Band Gap Value of SnO2 by Using Sol-Gel Methods Patriela, Miftah; Sanjaya, Hary
Asian Journal of Science, Technology, Engineering, and Art Vol 2 No 2 (2024): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v2i2.2743

Abstract

The need for electrical energy is increasing with the increase in the economy and population in Indonesia. Fossil energy sources are used as fuel to produce electrical energy and will run out if used continuously. Fossil energy sources can be replaced by using New Renewable Energy (NRE) to meet national electrical energy needs. The purpose of adding additives in this study is to observe the effectiveness of the addition of DEA on the band gap value, crystal phase, and surface morphology on SnO2. In this study using the sol-gel method for the synthesis of SnO2. The sol-gel method is the conversion of monomers into colloidal solutions (sol) which serve as precursors for integrated networks (gels) either discrete particles or network polymers. SnO2 nanomaterials will be characterized by UV-DRS Spectrophotometer. The results of characterization of SnO2 nanomaterials with the addition of Diethanolamine additives as much as 1.5 mL have obtained a band gap value of 3.60 eV.
Pengaruh Konsentrasi Doping TiO₂ dan Volume Diethanolamine (DEA) terhadap Nilai Bandgap CuO dengan Metode Sol-Gel Fatma, Sakina Cahaya; Sanjaya, Hary; Patriela, Miftah
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6634

Abstract

Copper(II) oxide (CuO) is a promising semiconductor material for various applications such as photocatalysis, sensing, and renewable energy devices. However, its performance is often limited by a suboptimal bandgap value for efficient energy conversion. This study aims to evaluate the effects of titanium doping concentration and the addition volume of diethanolamine (DEA) on the optical properties of CuO synthesized via the sol-gel method. The sol-gel technique was chosen for its ability to produce uniform doping distribution and stable nanoparticle structures. Bandgap characterization was conducted using UV-DRS spectroscopy. The results show that the bandgap of pure CuO, initially measured at 1.36 eV, was reduced to 1.28 eV through titanium doping at an optimal concentration of 0.3 mmol. The further addition of DEA at an optimal volume of 1 mL lowered the bandgap to 1.22 eV. This reduction indicates that titanium doping and DEA addition significantly influence the optical properties of CuO. These effects are likely due to structural irregularities such as oxygen vacancies, crystal defects, and impurities, which contribute to modifications in the material’s electronic structure. Additionally, the uniform distribution of microstrain and smaller particle size further contribute to structural alterations and bandgap tuning.
Pengaruh Penambahan Diethanolamine (DEA) Pada SnO2 Dalam Degradasi Methyl Orange Patriela, Miftah; Hary Sanjaya; Septian Budiman
Gudang Jurnal Multidisiplin Ilmu Vol. 2 No. 2 (2024): GJMI - FEBRUARI
Publisher : PT. Gudang Pustaka Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59435/gjmi.v2i2.277

Abstract

Pengelolaan air limbah domestik di Indonesia masih menghadapi tantangan teknis dan non-teknis. Nanopartikel SnO2 dapat digunakan sebagai fotokatalis untuk medegradasi polutan organik menjadi produk yang ramah lingkungan berupa CO2 dan H2O. Metode yang digunakan untuk uji aktivitas fotokatalis menggunakan metode fotolisis. Hasil degradasi methyl orange didapatkan sebesar 87.89% dengan SnO2 dengan penambahan 1.5 mL Diethanolamine (DEA) sedangkan nilai optimum degradasi methyl orange dengan SnO2 tanpa penambahan aditif didapatkan lebih kecil sebesar 3.63%. Hal ini menunjukkan efektivitas fotokatalis pada nanopartikel SnO2 dengan penambahan DEA.
Co-Authors Amsyar, Nadhilah Dwiputri, Yumanda Fatma, Sakina Cahaya Hary Sanjaya Hary Sanjaya Septian Budiman