Article Per Year (5 Year)
p-Index From 2021 - 2026
4.898
P-Index
This Author published in this journals
All Journal Jurnal Periodic Jurusan Kimia UNP Sainstek Jurnal Riset Kimia Fakultas Pertanian KOVALEN: Jurnal Riset Kimia JURNAL PENDIDIKAN TAMBUSAI Sainstek : Jurnal Sains dan Teknologi MASALIQ: Jurnal Pendidikan dan Sains Journal of Multidisciplinary Science: MIKAILALSYS Molekul: Jurnal Ilmiah Kimia Asian Journal of Science, Technology, Engineering, and Art
Hary Sanjaya
Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Padang, Jl. Prof. Dr.Hamka, Padang
Religion Agriculture, Biological Sciences & Forestry Arts Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Social Sciences Other

Published : 44 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 44 Documents
Search

 1   2   3   4   5 
Pengaruh Konsentrasi Prekusor Terhadap Sintesis Dan Karakterisasi Powder Cuo Dengan Metode Sol Gel Mifthahul Jannah, Nurul; Sanjaya, Hary; Budiman, Septian
Jurnal Pendidikan Tambusai Vol. 8 No. 2 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kebutuhan energi listri semakin meningkat seiiring bertambahnya jumlah penduduk. Untuk itu dibutuhkan alternatif lain sebagai penghasil energi listris. Salah satunya, penggunaan bahan semikonduktor pada pada panel surya. Tujuan dari penelitian ini meliputi sintesis dan karakterisasi CuO sebagai bahan semikonduktor yang disintesis melalui variasi kosentrasi CuCl2.2H2O menggunakan metode sol-gel.. Nanopartikel akan dikarakterisasi dengan spektrofotometer UV-DRS hasil karakterisasi CuO dengan variasi konsentrasi pekusor dan waktu kalsinasi didapatkan nilai celah pita 1,20 eV pada konsentrasi 0,8 mmol selama 4 jam.
Photodegradation of Crystal Violet Dyes Using Fe2O3/CuO with the Addition of MEA Additive Ramadhani, Alya; Sanjaya, Hary; Nasra, Edi; Amelia, Fitri
KOVALEN: Jurnal Riset Kimia Vol. 12 No. 1 (2026): April Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2026.v12.i1.18047

Abstract

Synthetic dyes, including Crystal Violet (CV), are widely used in the textile and chemical industries and are increasingly released into the environment due to their toxic, mutagenic, and non-biodegradable nature. The purpose of this work is to examine the photocatalytic degradation of CV utilising Fe2O3/CuO heterojunction with monoethanolamine (MEA) as an additive. To maximise its optical and catalytic capabilities, the Fe2O3/CuO photocatalyst was synthesised using different CuO compositions and MEA volumes. Using UV-Visible Diffuse Reflectance Spectroscopy (UV-DRS) and the Kubelka-Munk technique, the band gap energy was determined. According to the findings, the incorporation of CuO did not show a pronounced effect, but it may contribute to the photocatalytic system through interfacial interactions and improved charge transfer within the Fe2O3/CuO structure. The lowest band gap value and optimal composition were found at 20% CuO, which was further reduced by adding 2 mL MEA. Tests of photocatalytic activity were conducted for 120 minutes when exposed to UV and sunshine. The results showed that CV had a high deterioration efficiency, reaching about 53.87% when exposed to sunshine. The creation of a Fe2O3/CuO heterojunction, which enhances charge separation and decreases electron-hole recombination, is responsible for the improved performance, whereas MEA enhances particle distribution and increases surface area. These results suggest that Fe2O3/CuO with MEA is a promising, economical, and eco-friendly photocatalyst for the treatment of wastewater contaminated with dyes.
Synthesis and Characterization of ZnO-Doped CuO with the Addition of Monoethanolamine Using the Sol-Gel Method Asnur, Nazellia; Sanjaya, Hary; Dewata, Indang; Ikhsan, Fajri
Journal of Multidisciplinary Science: MIKAILALSYS Vol 4 No 1 (2026): Journal of Multidisciplinary Science: MIKAILALSYS
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/mikailalsys.v4i1.9537

Abstract

Semiconductors are materials capable of conducting electricity within specific limits, a property that is essential for applications in photocatalysts and solar cells. Copper oxide (CuO), a transition metal oxide, exhibits favorable properties as a p-type semiconductor and is characterized by a narrow bandgap ranging from 1.2 to 1.8 eV. However, CuO has a limitation in the form of a high electron–hole recombination rate, which requires modification through doping and additive incorporation. This study aims to analyze the effects of zinc oxide (ZnO) doping and the addition of monoethanolamine (MEA) on the characteristics of CuO nanoparticles synthesized using the sol–gel method. This method was selected because it can produce materials with a large surface area and good stability. Characterization was conducted using ultraviolet–diffuse reflectance spectroscopy (UV–DRS) to determine bandgap energy. The findings show that the optimal bandgap value was obtained at 20% ZnO concentration, with a bandgap energy of 1.33 eV, while the addition of 2 mL MEA produced a bandgap energy of 1.42 eV. The decrease in bandgap value indicates that ZnO doping affects the optical properties of CuO. A smaller bandgap narrows the distance between the valence band and the conduction band, thereby facilitating electron excitation and requiring lower photon energy. This study contributes to the development of modified CuO-based semiconductor materials by demonstrating the potential role of ZnO doping and MEA addition in improving optical characteristics relevant to photocatalytic and solar cell applications.
Dye-Sensitized Solar Cell (DSSC) with TiO2-Cu and Natural Pigmented Dye Hardeli, Hardeli; Sanjaya, Hary; Novita, Indri Panca; Luli, Rahmaneta; Yunita, Lasmi; Agdisti, Nurul Fadilah; Permatasari, Putri
Jurnal Riset Kimia Vol. 17 No. 1 (2026): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v17i1.821

Abstract

Dye-Sensitized Solar Cells (DSSC) are solar cells that use dye as a sensitizer. Titanium dioxide (TiO2) is a semiconductor that is frequently used in DSSC. However, the effectiveness of TiO2 can decrease due to electron and hole recombination. In this study, copper metal (Cu) was electrodeposited onto the TiO2 layer, where Cu plays a role in forming a barrier layer to reduce electron recombination. Anthocyanins are natural dyes with a broad light spectrum that can be used as a photon absorber in the DSSC. Anthocyanins in this study were extracted from red grape skin (Vitis Vinifera), jengkol skin (Pithecellobium jiringa), senduduk fruit (Melastoma malabathricum L), and mangosteen peel (Garcinia Mangostana L). To create a more stable organic dye, the dye is co-pigmented with salicylic acid. The XRD characterization of the layers revealed a diffraction pattern indicating the presence of anatase-phased and size reduction on TiO2-Cu layers. As a result, the DSSC performance increased. SEM-EDS analysis was performed to determine surface morphology and identify Cu metal. FTIR analysis of dyes revealed the presence of specific anthocyanin groups. The UV-Vis characterization revealed the effect of co-pigmentation on the dye absorption area. The highest DSSC performance with TiO2-Cu coating and co-pigmented dye was achieved in the DSSC by electrodepositing Cu on the TiO2 layer while using grape skin as a dye source.
Co-Authors Abdul Razak Admin Alif Agdisti, Nurul Fadilah Agnes Quartina Pudjiastuti Aini, Syamsi Alfarisi, Fadil Amelia, Reza Amsyar, Nadhilah Asnur, Nazellia Auzakiyah, Sabella Budhi Oktavia Deski Beri Desy Kurniawati Dwiputri, Yumanda Edi Nasra Eri Barlian Faizah, Suci Hanim Filiandini, Nadya Fitri Amelia Fitria, Fadhila Harahap, Riri Indah Nitami Hardeli Hardeli Hardianti, Amirah Salsabila Hermansyah Aziz Ikhsan Fajri, Ikhsan Indang Dewata Izanel, Rezi Ananta Jayawarsa, A.A. Ketut Julizen, Rofilian Karsa, Dion Randi Khaliq, Feni Kurnia Laksono Trisnantoro Lilis karlina, Lilis Luli, Rahmaneta Miftahul Jannah Miftahurrahmi, Miftahurrahmi Mifthahul Jannah, Nurul Mulia, Melindra Nengsi, Suharti Nizar, Umar Kalmar Novel, Dheo Shalsabilla Novita, Indri Panca Nurul Husna Nurwijayanti Patriela, Miftah Putra, Ananda Putri Permatasari, Putri Putri Rahayu, Nanda Putri, Natasya Alya Putri, Sinta Eka Putri, Tiara Jelita Rahadian Zainul Rahmatika, Aljumaatul Ramadhani, Alya Reflia, Tiwi Retno Damayanti Riga, Riga Rindiani, Maiyola Rizka, Futtyhat Rofiatin, Umi Sari, Putri Manda Sefriyani, Sefriyani Septian Budiman Setiowati, Fiqih Sekar Soviah, Sadri Sri Benti Etika Sukma, Vira Ananda Syafrian, Syafrian Syukri Arief Syukri UNP Viony Anjelina Yulfitrianti, Marlina Yunita, Lasmi