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All Journal JURNAL INTEGRASI PROSES Jurnal Pengendalian Pencemaran Lingkungan (JPPL)
Yuliani HR
Politeknik Negeri Ujung Pandang
Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Other

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PENENTUAN KONDISI OPTIMAL ELECTROPLATING EMAS PADA BAJA PENINJUAN KUALITAS PELAPISAN HR Yuliani; Pria Gautama; Sukma Abadi
JURNAL INTEGRASI PROSES VOLUME 6 NOMOR 2 DESEMBER 2016
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.49 KB) | DOI: 10.36055/jip.v6i2.940

Abstract

Electroplating emas melewati tiga tahap utama yakni pembersihan, aktivasi, dan penyepuhan. Pengrajin emas secara umum melakukan elektropating secara konvensional dengan peralatan terpisah untuk tiap prosesnya, suplai arus listrik dan panas diatur secara manual sehingga terjadi ketidakstabilan pelapisan. Hal ini menyebabkan hasil pelapisan buram dan daya rekat produk elektroplating tidak bertahan lama. Penelitian ini bertujuan mengetahui kondisi optimal electroplating emas terhadap ketebalan lapisan emas. Metode penelitian yang digunakan adalah metode eksperimental menggunakan Automatic integrated immersion system dengan melakukan pengujian ketebalan terhadap benda uji dengan ukuran 4 x 2 x 0.4 cm dengan memvariasikan parameter suhu operasi (30,40,50 dan 60)0C, waktu 8 menit dan arus 0.9 ampere. Hasil penelitian menggunakan Automatic integrated immersion system menunjukan bahwa meningkatnya suhu dan waktu pelapisan maka ketebalan lapisan semakin meningkat dan kehalusan permukaan beragam. Optimasi electroplating yaitu arus 0.9 ampere, waktu electroplating 10 menit dengan tebal lapisan 0.970 μm.
Karakteristik Karbon Aktif Tempurung Kluwak (Pangium edule) Sebagai Adsorben Pada Penjerapan Methylene Blue Andi Musfirah Adhar; Isma Ayu Ningsih Putri Zainal; Farham Farham; Ida Adriani Idris; Haera Setiawati; Yuliani HR
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol 4, No 1 (2022): JPPL, Maret 2022
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jppl.v4i1.1091

Abstract

Kluwak (Pangium edule) is a plant that the seeds are used as a seasoning, to produce waste in the form of kluwak shells that the application has not been widely used by the community. This study aims to utilize the carbonized kluwak shell waste as an adsorbent for the absorption of methylene blue, by activating them using potassium hydroxide (KOH) to increase the adsorption ability of the adsorbent. Variations in the concentrations of KOHused are 0, 1, 3, and 5 M and concentrations of methylene blue solution 100, 110, 120, 130, 140, and 150 ppm. The study reviewed how the characteristics of the kluwak shell as an adsorbent on the absorption of methylene blue, including absorption percentage, maximum adsorption capacity through Langmuir equation, adsorbent morphology through Scanning Electron Microscope (SEM) analysis, and surface area. The adsorption process in this study took place in batches for 90 minutes using a shaker with speed of 300 rpm with volume methylene blue solution as much as 50 mL and the weight of the kluwak shell carbon without activation, and KOH 1, 3, and 5 M activated kluwak shell carbon as much as 0.15 g. The results showed that the higher the concentration of KOH, the higher the average adsorption percentage and maximum adsorption capacity. The amount of the average percent absorption, maximum adsorption capacity, and the largest surface area were on the kluwak shell carbon activated by KOH 5 M, were respectively 97.69%; 48.082mg/g; and 174.17 m2/g. The SEM results analysis showed that activated kluwak shell carbon of 5 M KOH had a larger particle size and pore shape, had a more unified shape, and a flake structure than without activation.
Karakteristik Karbon Aktif Tempurung Kluwak (Pangium edule) Sebagai Adsorben Pada Penjerapan Methylene Blue Andi Musfirah Adhar; Isma Ayu Ningsih Putri Zainal; Farham; Ida Adriani Idris; Haera Setiawati; Yuliani HR
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol. 4 No. 1 (2022): JPPL, Maret 2022
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jppl.v4i1.1448

Abstract

Kluwak (Pangium edule) is a plant that the seeds are used as a seasoning, to produce waste in the form of kluwak shells that the application has not been widely used by the community. This study aims to utilize the carbonized kluwak shell waste as an adsorbent for the absorption of methylene blue, by activating them using potassium hydroxide (KOH) to increase the adsorption ability of the adsorbent. Variations in the concentrations of KOH used are 0, 1, 3, and 5 M and concentrations of methylene blue solution 100, 110, 120, 130, 140, and 150 ppm. The study reviewed how the characteristics of the kluwak shell as an adsorbent on the absorption of methylene blue, including absorption percentage, maximum adsorption capacity through Langmuir equation, adsorbent morphology through Scanning Electron Microscope (SEM) analysis, and surface area. The adsorption process in this study took place in batches for 90 minutes using a shaker with speed of 300 rpm with volume methylene blue solution as much as 50 mL and the weight of the kluwak shell carbon without activation, and KOH 1, 3, and 5 M activated kluwak shell carbon as much as 0.15 g. The results showed that the higher the concentration of KOH, the higher the average adsorption percentage and maximum adsorption capacity. The amount of the average percent absorption, maximum adsorption capacity, and the largest surface area were on the kluwak shell carbon activated by KOH 5 M, were respectively 97.69%; 48.082mg/g; and 174.17 m2/g. The SEM results analysis showed that activated kluwak shell carbon of 5 M KOH had a larger particle size and pore shape, had a more unified shape, and a flake structure than without activation.
Co-Authors Andi Musfirah Adhar Farham Farham Farham Haera Setiawati Ida Adriani Idris Isma Ayu Ningsih Putri Zainal Pria Gautama Sukma Abadi