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All Journal PROSIDING SEMINAR KIMIA Al-Maslahah
Ashari, Irfan
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Religion Chemistry Economics, Econometrics & Finance

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SYNTHESIS AND CHARACTERIZATION OF ZnO NANOPARTICLES: MINI REVIEW Wulandari, Siti Aprilia; Hindryawati, Noor; Ashari, Irfan
PROSIDING SEMINAR KIMIA Vol 2 No 1 (2023): Prosiding SNK 2023
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

This mini review will explore the manufacture of ZnO nanomaterials. ZnO material has the advantages of high electron mobility, wide bandgap, high temperature resistance, and good UV absorption. ZnO has many applications in everyday life such as for photocatalysts, antibacterials, edible coatings, and others. Based on the literature review, ZnO material can be synthesized using sol-gel, hydrothermal, solvothermal, precipitation and coprecipitation methods. The resulting synthesis results are 7.4 nm-170 nm in size, have a hexagonal wurtzite crystal structure, have a bandgap of 3.23 eV-3.50 eV, and produce a surface area of 91.87 m2/g-113.37 m2/g. Based on the review conducted, it can be concluded that the method that produces ZnO nanoparticles with the smallest size and the largest surface area is synthesis using the solvothermal method. Keywords: Nano materials, Semiconductors, Nanoparticles.
ANALISIS JASA JOKI GAME ONLINE MOBILE LEGENDS DALAM PERSPEKTIF HUKUM EKONOMI SYARIAH Ashari, Irfan
Al-Maslahah : Jurnal Ilmu Syariah Vol 21, No 1 (2025)
Publisher : Fakultas Syariah (Syari'ah Faculty )

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24260/al-maslahah.v21i1.2854

Abstract

Mobile Legends is an online game from China which was released by Moonton. Mobile Legends is a very popular online game with more than five hundred million downloads and users spread across various countries. With technology and online games increasingly developing, it influences a multi-level lifestyle. Initially, playing online games was only to relieve stress and for entertainment for the players. Most players consider the situation in the game to be normal. Currently, with online games, game players can make money by joining an e-sports team to become a professional player, selling game diamonds (game currency), selling game accounts, and so on. as well as opening jockey services to increase ranking or levels in the Mobile Legends game. Many consumers use jockey services because of their lack of ability in the game. Using the services of a jockey must pay attention to the terms and conditions of Ijarah, in Islam it is permissible to join in muamalah if you fulfill the terms and conditions of Ijarah
Co-Authors Noor Hindryawati, Noor Wulandari, Siti Aprilia