<mets:mets OBJID="eprint_47831" LABEL="Eprints Item" xsi:schemaLocation="http://www.loc.gov/METS/ http://www.loc.gov/standards/mets/mets.xsd http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-3.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:mets="http://www.loc.gov/METS/" xmlns:xlink="http://www.w3.org/1999/xlink"><mets:metsHdr CREATEDATE="2026-10-09T18:07:10Z"><mets:agent ROLE="CUSTODIAN" TYPE="ORGANIZATION"><mets:name>Repository Universitas Negeri Padang</mets:name></mets:agent></mets:metsHdr><mets:dmdSec ID="DMD_eprint_47831_mods"><mets:mdWrap MDTYPE="MODS"><mets:xmlData><mods:titleInfo><mods:title>Sintesis dan Karakterisasi SnO2/Ni dengan Penambahan Aditif &#13;
Monoethanolamine (MEA) sebagai Katalis terhadap Degradasi &#13;
Methylene Orange</mods:title></mods:titleInfo><mods:name type="personal"><mods:namePart type="given">Nadya</mods:namePart><mods:namePart type="family">Alexandra</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:abstract>Limbah zat warna tekstil merupakan pencemar lingkungan yang sulit terdegradasi secara alami sehingga diperlukan metode pengolahan yang efektif. Fotokatalisis menggunakan material semikonduktor menjadi salah satu metode potensial karena mampu mendegradasi zat warna organik menjadi senyawa yang lebih ramah lingkungan. Pada penelitian ini dilakukan sintesis nanopartikel SnO₂ terdoping Ni dengan variasi konsentrasi Ni (0,2–1 mmol) dan penambahan zat aditif monoethanolamine (MEA) (16,57–49,71 mmol) menggunakan metode sol-gel. Karakterisasi dilakukan menggunakan UV-DRS, XRD, dan SEM, serta uji aktivitas fotokatalitik terhadap degradasi methyl orange menggunakan lampu LED. Hasil UV-DRS menunjukkan bahwa bandgap SnO₂ murni sebesar 2.93 eV dan menurun menjadi 2,53–2,47 eV setelah doping Ni. Penambahan MEA menurunkan bandgap hingga nilai optimum 2,333 eV pada 33,14 mmol MEA. Hasil XRD menunjukkan struktur kristal tetragonal rutile SnO₂ tanpa fase pengotor dengan ukuran kristalit menurun dari 34,47 nm menjadi 32,36 nm setelah penambahan MEA. Hasil SEM menunjukkan morfologi partikel hampir sferis dengan aglomerasi ringan dan distribusi ukuran relatif homogen. Uji fotokatalitik menunjukkan degradasi optimum sebesar 52,9% (SnO₂), 57,6% (SnO₂-Ni), dan 69,3% (SnO₂-Ni +MEA) pada 120 menit</mods:abstract><mods:classification authority="lcc">QD Chemistry</mods:classification><mods:originInfo><mods:dateIssued encoding="iso8601">2026-04</mods:dateIssued></mods:originInfo><mods:originInfo><mods:publisher>Universitas Negeri Padang;Kimia FMIPA UNP</mods:publisher></mods:originInfo><mods:genre>Thesis</mods:genre></mets:xmlData></mets:mdWrap></mets:dmdSec><mets:amdSec ID="TMD_eprint_47831"><mets:rightsMD ID="rights_eprint_47831_mods"><mets:mdWrap MDTYPE="MODS"><mets:xmlData><mods:useAndReproduction>
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