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All Journal Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Kappa Journal Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA)
Heru Harsono
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Astronomy Education Mathematics Physics Other

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Studi Karakterisasi Sintesis Nano Partikel ZnO Menggunakan Metode Kopresipitasi dengan Varian Konsentrasi Dopping Cu Radityo Rangkuti; Heru Harsono; Muhammad Ghufron
Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Vol 7, No 2 (2018): Edisi Desember 2018
Publisher : Fakultas Teknik Elektro - Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/setrum.v7i2.4513

Abstract

Syntesis of ZnO nano particles using co-precipitation methode with variation of cu-doped consentrate has been done. This research devided by two part, the first part is syntesis process, and the second part is characterization process. The first step of synthesis process is by measuring Zn assetate and CuS mass to get variation of Cu –Doped consentration which is 0%, 2%, 4%, 6%, and 8%, then dissolved it with 150 ml HCl 0.5 M. The next step is by droping on solution slowly until pH 10, then the solution stired on a hotplate for 3 hours with 60⁰ C temprature. Next, the synthesis proceed is done after following this procees which is preticipation, purification, and drying with 150⁰ C. Characterization proses has been done by using SEM-EDX and XRD. Ressult by using XRD ZnO phase found in 0%, 4%, 6%, and 8% Cu-doped. The smallest average of diameter crystallin acquaired from a sampel without Cu-doped which is 29 nm, and the largest is acquaired from a sampel with 8% Cu-doped which is 37 nm. SEM-EDX result shown particles morfology and the persentage of mass and atom. As it result can be concluded The persentage of mass and atom Cu greater along the consentration
Pengaruh Dopping Mn Pada Semikonduktor AZO Terhadap Laju Fotodegradasi Pewarna Tekstil Congo Red Menggunakan Radiasi UV A Krisandi, Aprilion; Heru Harsono; Nurfina Yudasari
Kappa Journal Vol 8 No 2 (2024): Agustus
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i2.25497

Abstract

Pengujian fotodegradasi pewarna tekstil Congo Red telah berhasil dilakukan menggunakan agen AZO dan AZOMn. Material tersebut disintesis terlebih dahulu disintesis menggunakan metode kopresipitasi dengan formulasi Zn0,95-xAl0,05Mnx dengan nilai x sebesar 0 dan 0,01. Material hasil modifikasi tersebut diuji menggunakan spektrometer reflektan (DRS) untuk mendapatkan nilai relektansi yang digunakan dalam proses perhitungan nilai energi gap dengan bantuan persamaan Kulbelka Munk. AZO dengan konsentrasi Al 5% wt dan Mn 0% wt memiliki energi gap sebesar 3,290 eV dan AZOMn dengan konsentrasi Al 5% wt dan Mn 0,1% wt memiliki energi gap 3,279 eV. Aktivitas fotokatalis AZO dan AZOMn telah diuji menggunakan sumber radiasi sinar UV A dengan puncak serapan Congo Red 480 nm selama 2 jam. Dari hasil karakterisasi, kedua agen fotokatalis ini mampu mendegradasi limbah pewarna tekstil Congo Red dengan persentase AZO dan AZOMn beturut – turut 97,9% dan 67,6%. Laju fotodegradasi juga menampilkan pola yang sama yaitu material AZO memiliki kelajuan fotodegradasi sebesar 0,03504/menit sedangkan material AZOMn memiliki kelajuan fotodegradasi sebesar 0,00759/menit. Nilai ini menunjukkan bahwa AZO memiliki kemampuan fotodegradasi lebih baik dibandingkan dengan AZOMn dalam limbah pewarna tekstil Congo Red
Literature Study of The Effect of Aluminum Doped ZnO Nanoparticles on Structure and Gap Energy Muchamad Anjar Fadillah; Heru Harsono; Mauludi Ariesto Pamungkas
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v4i1.4491

Abstract

Nanomaterials have a variety of uniqueness and attractiveness, it is considered necessary to carry out literature study, beside the laboratory investigation, among others, on the nanoparticle structure and energy gap of ZnO nanoparticles doped with aluminum (Al) resulting from synthesis using various methods. In this study, the structure of the nanoparticles was divided into three types, namely crystal structure, crystallite size, and morphology. The crystal structure of the Al doped ZnO nanoparticles is hexagonal wurtzite. It is found, that, a decrease in crystallite size occurs as the doping of Al into ZnO increases to its solubility limit. A similar pattern also occurs in particle size. The high concentration of Al doping results in agglomeration. The morphology of Al doped ZnO nanoparticles in some references of this study are rod, spherical, and irregular spheres. The energy gap value of Al doped ZnO nanoparticles increases with the increasing concentration of Al doping in ZnO. So, it can be said, that Al as a doping material has an influence on the structure and optical properties of ZnO nanoparticles.
Co-Authors Krisandi, Aprilion Mauludi Ariesto Pamungkas Muchamad Anjar Fadillah Muhammad Ghufron Nurfina Yudasari Radityo Rangkuti