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All Journal Molekul: Jurnal Ilmiah Kimia Socius: Social Sciences Research Journal
Dendy, Dendy
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Religion Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Materials Science & Nanotechnology

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Pengaruh Kualitas Produk, Persepsi Harga, dan Citra Merek Terhadap Keputusan Pembelian Minuman Yakult Di Palangka Raya Roma, Roma; Nopra, Nopra; Waruwu, Henokh Y.; Adeputra, Gio Tama; Dendy, Dendy
Socius: Jurnal Penelitian Ilmu-Ilmu Sosial Vol 2, No 10 (2025): May
Publisher : Penerbit Yayasan Daarul Huda Kruengmane

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.15526389

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh kualitas produk, persepsi harga, dan citra merek terhadap keputusan pembelian minuman Yakult di Kota Palangka Raya. Jenis penelitian yang digunakan adalah penelitian kuantitatif dengan metode survei. Data dikumpulkan melalui kuesioner yang disebarkan kepada 100 responden yang pernah mengonsumsi Yakult di wilayah Palangka Raya. Teknik analisis data yang digunakan adalah analisis regresi linear berganda. Hasil penelitian menunjukkan bahwa secara parsial maupun simultan, kualitas produk, persepsi harga, dan citra merek berpengaruh positif dan signifikan terhadap keputusan pembelian Yakult. Temuan ini mengindikasikan bahwa konsumen di Palangka Raya sangat mempertimbangkan ketiga variabel tersebut sebelum memutuskan untuk membeli Yakult. Oleh karena itu, perusahaan disarankan untuk terus menjaga dan meningkatkan kualitas produk, memberikan harga yang kompetitif, serta memperkuat citra merek melalui strategi pemasaran yang efektif.
The Initial Screening of Heavy Metal Adsorption on Highly Porous Metal-Organic Frameworks based on MIL-101(Cr), Ethylenediamine-modified MIL-101(Cr), and MIL-101(Cr)-NH2 Dendy, Dendy; Lestari, Witri Wahyu; Anshori, Isa; Rahardjo, Sentot Budi; Pramono, Edi; Saraswati, Teguh Endah; Wibowo, Fajar Rakhman
Molekul Vol 21 No 1 (2026)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2026.21.1.17186

Abstract

ABSTRACT. Heavy metal pollution is a significant environmental issue with detrimental effects on ecosystem and human health. Therefore, comprehensive handling need to be carried out. Herein we studied initial screening adsorption of heavy metals including Ni, Cu, Zn, Cd, and Pb using Metal-Organic Frameworks class of Materials Institute Lavoisier (MIL) based on Cr(III). MIL-101(Cr), and its modification with ethylenediamine (EA), and MIL-101(Cr)-NH2 were prepared under hydrothermal condition. X-ray diffraction and FT-IR analysis confirmed the formation of the targeted materials. A new absorption band at 1050 cm-1 corresponds to vibration of C-N which indicates the successful EA modification into MIL-101(Cr). Nitrogen sorption isotherm measurement revealed MIL-101(Cr) and EA@MIL-101(Cr) have a specific surface area of 2548.6 and 2079 m²/g with micropore-sized, while MIL-101(Cr)-NH2 has a specific surface area of 1583.4 m²/g with micro and mesopore-sized. Adsorption performance was assessed through batch experiments monitored by atomic absorption spectroscopy. The results show that MIL-101(Cr) and its modification with EA exhibit higher adsorption capacities on cadmium and nickel metal ions, compared to MIL-101(Cr)-NH2. Meanwhile, MIL-101(Cr)-NH2 and MIL-101(Cr) show more dominant adsorption capabilities on zinc and copper ions compared to the EA-modified MIL-101(Cr). This result suggests that the material's porosity still plays a dominant role in the adsorption processes compared to amine functionalize group on MIL itself. Keywords: adsorption, chromium(III), heavy metals, MOF, MIL
Co-Authors Adeputra, Gio Tama Edi Pramono Fajar Rakhman Wibowo Isa Anshori Lestari, Witri Wahyu Nopra, Nopra ROMA, ROMA Sentot Budi Rahardjo Teguh Endah Saraswati Waruwu, Henokh Y.