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Journal : JURNAL REKAYASA KIMIA

Electrochemical Performance of Tellurium Oxide on TiO2/Ti Array for Photoelectrocatalytic Chemical Oxygen Demand Sensor Applications Maulidiyah, Maulidiyah; Irwan, Irwan; Indriani, Annisa; Salim, La Ode Agus; Arham, Zul; Bijang, Catherina M.; Kurniawan, Kurniawan; Nurdin, Muhammad
Jurnal Rekayasa Kimia & Lingkungan Vol 17, No 2 (2022): Jurnal Rekayasa Kimia & Lingkungan (December, 2022)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v17i2.27784

Abstract

The experiments were carried out using Te-TiO2/Ti as working electrodes, prepared by the simple anodization technique and dip coating method, on Ti substrates (TiO2/Ti). The measurements were performed in an electrochemical cell using a three-electrode system, with Te-TiO2/Ti as the working electrode, Ag/AgCl as the reference electrode and pt as the auxiliary electrode. A flow system for determining the profile and photocurrent response of reactive orange 84 was developed using Linear Sweep Voltammetry (LSV) and Multi-Pulse Amperometry (MPA). The physicochemical properties of Te-TiO2/Ti electrodes have been studied using UVvis DRS analysis techniques and compared with un-doped TiO2/Ti electrodes. The UVvis DRS showed that the TiO2/Ti doped Te functionally decreases bandgap to 3.0 eV. The results showed that the photocurrent of reactive orange 84 was observed in the concentration range (1-5 M), with a linear response between concentration and charge.
Electroanalytical Performance of Graphene Paste Electrode Modified Al(III)-TiO2 Nanocomposites in Fipronil Solution Nurdin, Muhammad; Arham, Zul; Rahayu, Sri; Agus Salim, La Ode; Maulidiyah, Maulidiyah
Jurnal Rekayasa Kimia & Lingkungan Vol 15, No 2 (2020): Jurnal Rekayasa Kimia & Lingkungan (December, 2020)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v15i2.16947

Abstract

The new composite material Al(III)-TiO2 has been synthesized and applied as a modifier of graphene paste electrode for the determination of fipronil pesticide by cyclic voltammetry. The methods were to synthesis of Aluminum-Titanium dioxide (AT), preparation of graphene paste electrode with mass varied Al(III)-TiO2 (GAT) (0.05 g, 0.1 g, 0.2 g), and fipronil electroanalytic respons. Addition of Al(III)-TiO2 to the graphene paste electrode shows redox properties which are well characterized by a fast electron transfer process. Based on the results of measurements in a solution containing fipronil, it is known that fipronil is oxidized at a potential value of 0.26 V. Furthermore, the fipronil oxidation process on the GAT surface is influenced by diffusion control, this is powered by R2 value 0.91 when plotted between peak oxidation currents (Ipa) vs. root scan rate. Other results show that measurement linearity is in the range 0.01 to 0.09 g/L with a limit of detection (LOD) value of 0.0164 g/L. Moreover, GAT shows good stability in the determination of fipronil with% RSD equal to 5%.
Co-Authors Abdul Muhaimin, Abdul Abdul Rachman Aceng Haetami, Aceng Achmad Noerkhaerin Putra Agus M. Hariri Agus Salim, La Ode Ahmad Randy Aisya, Sitti Akhmad Darmawan Alfiannor, Alfiannor Alvianna, Stella Ansharullah ansharullah Arham, Zul Ariani, Novita Arief Budi Nugroho, Arief Arwanto, Arwanto Asnawi Asnawi Bambang Setiawan Bijang, Catherina M. Cipta Ginting, Cipta Devina Hutabarat, Yessica Dewanti, Elsa Mayorita Diana, Ulfa Djohan, M Widda Dodik Jatmika Eka Fitrianto, Eka Elsa Sely Rahmayani Eni Sumarminingsih Ermawati Ermawati Evizal, M.S., Dr. Ir. Rusdi Faishol, Faris Fauziah Fauziah Fembriarti Erry Prasmatiwi Fernandes, Adji Fredita, Silva Yumi Ginting , Cipta Halim, Levin HALIMATUSSADIYAH -, HALIMATUSSADIYAH Handayani, Ridha Hariyanto, Nanang Hasriadi Mat Akin Helina, Selvi Hendri, Afrizal Hery Syaeful I GEDE SWIBAWA, I GEDE Imran Imran Indriani, Annisa Inrianti, Inrianti Irwan Irwan Ivayani, Ivayani Jahri, Muhammad Jamika, Dodik Joko Prasetyo Kadir, La Ode Abd Kasiono, Roy Khouruh, Umu Khusmayudi, Khusmayudi Kurnia Setiawan Widana Kurniawan Kurniawan Kus Hendarto, Kus Kusuma, Arvi Yuniar La Ode Santiaji Bande Liandari, Rizky Fatma Lita Norfiana M. Natsir Maindi, Andri Jahir Mat Akin, Hasriadi Maulidiyah MAULIDIYAH -, MAULIDIYAH Maulidiyah Maulidiyah Medi Hendra, Medi Megawati Melati Meulisa, Ade Irma Muh. Edihar Muhammad Darwis Meyandie Nasution Muhammad Thoyib Muhammad Yahya Mustapa, Faizal Muzakkar, Muhammad Zakir Muzakki, M Harir Nasriadi, Nasriadi Ngadenin Ngadenin Nohong Nohong, Nohong Nur Aeny, Titik Nur Aini, Yuliani Nur, Hasanah Nurhikmah Nurhikmah Nursaibah Primahana, Gian Priyanto, Imansyah Putri, Syifa Oktaviani Putri, Viola Augustia R, Halimatussaddiyah Rachmadina, Najma Fadya Ratih Titi Komalasari Ratna Ratna Refdinal Nazir Rismiati, Rismiati RR. Ella Evrita Hestiandari Rusdi Evizal Saddam, Muhamad Safitri, Annisa Saidah, Andi Salim, La Ode Agus Saragih, Delima Sembiring, Rinawati Shanty Komalasari, Shanty Solimun SRI RAHAYU Sudi Pramono . Sufal Diansyah Sugiatno Sugiatno SUKIRNO Sumiyati Tuhuteru Suparman Suparman Suskandini Ratih Dirmawati Sutoyo Sutoyo Taufik Hidayat THAMRIN AZIS Titien Agustina Titik Nur Aeny Tri Maryono Tundo, Tundo Tusiana Dewi Ullah, Muhammad Vidya Selasdini Wahyu Ningsih, Eka Yusep Purwana Muslih Zakir Muzakkar, Muhammad