Modifikasi Filter Keramik dengan γ-alumina sebagai adsorbent logam berat

Maryani, Eneng; Suhanda, Suhanda; Sofyaningsih, Naili; Ratnaningsih, Ayu

doi:10.32537/jkgi.v25i2.2665

Cited by 1 publication

(1 citation statement)

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“…Glassy carbon electrode memiliki bentuk fisik seperti kaca hitam yang mudah pecah. Glassy carbon electrode mempunyai struktur amorf, mempunyai pori-pori yang berdekatan dalam ukuran yang kecil dan mempunyai kemurnian yang tinggi [11]. Glassy carbon electrode terbuat dari berbagai bahan karbon berstruktur nano, seperti karbon nanotube, karbon mesopore dan graphene [12].…”

Section: Pengantarunclassified

Deteksi Formaldehida Menggunakan Glassy Carbon Electrode (GCE) Modifikasi Lapisan Tipis Emas secara Voltametri Siklik

Maharani,

Sari,

Dewata

et al. 2024

Periodic

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The formaldehyde was found as one of the toxic and mutagenic products. Long-term exposure will harm the health of the human body. This study aims to detect formaldehyde developed on an electrochemical sensor using Glassy Carbon Electrode (GCE) modified with a thin layer of gold as the working electrode by cyclic voltammetry. Electrode modification was carried out by electrodeposition of Au potential-sweeping on electrodes known as Au/GCE electrodes. The resulting electrode has high conductivity and excellent catalytic activity because it is able to provide a large peak current response. In this study, the peak current obtained is sharper, the sensitivity and stability are also better due to the electrocatalytic properties produced by the high gold thin layer. The optimum conditions will be determined based on variations in the electrodeposition cycles of gold thin films and variations in the supporting electrolyte. The optimum cycle of gold thin film electrodeposition was obtained, namely one cycle and 0.1 M KOH as the optimum supporting electrolyte.

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Section: Pengantarunclassified