Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Journal of Mechanical Engineering Science and Technology

The Effect of Adding Aluminium on the Performance of ZnO NRs/PANi in Their Application as Photoelectrochemical Water Splitting Sari, Eprilia Trikusuma; Mufti, Nandang; Nadhira, Anissa Chairani Alfin; Wisodo, Hari; Diantoro, Markus
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 7, No 2 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v7i22023p202

Abstract

Photoelectrochemical (PEC) is a new renewable energy technology that converts H2O into hydrogen and oxygen gas with the help of sunlight. A photoelectrochemical cell device consists of three main components, one of which is the photoanode. One of the materials that can be used as a photoanode is ZnO which has good electrical properties and is non-toxic. Nanorods-structured ZnO has the advantage of being able to increase light absorption due to its high surface area. However, the resulting performance is still quite low. So it is necessary to make modifications to the photoanode, one of which is by adding aluminium material to ZnO NRs, which has the potential to increase the conductivity of PEC in the production of H2 and O2 in H2O. To overcome the loss of samples during testing, the thin film will be coated with conductive polymers such as polyaniline (PANi), which has high conductivity, can increase photoactive ability, and has good corrosion resistance. In this study, the performance of ZnO NRs/PANi against AZO NRs/PANi will be studied by adding aluminium. The ZnO nanorods were synthesized by Hydrothermal method, Aluminium was deposited on ZnO NRs by DC Magnetron Sputtering method, and PANi was synthesized by polymerization method. From the XRD characterization results, it can be concluded that the addition of aluminium to ZnO NRs/PANi causes an increase in crystallinity and peak shift. SEM characterization shows that the addition of Al to ZnO NRs/PANi causes the porosity value to increase. In addition, UV-Vis characterization showed that the addition of Al material to the ZnO NRs/PANi thin film resulted in a wider range of absorbance of the light spectrum. Then, Cyclic Voltammetry test shows that the addition of aluminium increases the efficiency of the photoelectrochemical.
Investigate the Potential Renewable Energy of Microalgae Spirulina sp Using Proximate Analyzer, SEM-EDX, and Thermogravimetry Zakaria, Yahya; Sukarni, Sukarni; Puspitasari, Poppy; Mufti, Nandang; Anis, Samsudin; Johari, Anwar
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 6, No 2 (2022)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v6i22022p066

Abstract

Microalgae Spirulina sp which has been cultivated by the Brackishwater Aquaculture Development Center, Situbondo Indonesia were tested for their potential energy performance using proximate analyzer, SEM-EDX, and thermogravimetry. The proximate analyzer showed volatile matter (VM), fixed carbon (FC), moisture, ash content (AC), total sulfur of microalgae Spirulina sp 68.15, 12.57, 11.22, 8.06, and 0.67 (wt%, ar), respectively, and the gross calorific value (GCV) is 4971 kcal/kg (dry basis). SEM-EDX test showed the morphology and chemical content of Spirulina sp. The content of microalgae Spirulina sp is dominated by carbon (C) and oxygen (O), then followed by chlorine (Cl), sodium (Na), potassium (K), sulfur (S), magnesium (Mg), and phosphorus (P). Thermogravimetry pyrolysis test of microalgae Spirulina sp resulted thermogravimetry (TG) analysis and derivative thermogravimetry (DTG) analysis curve, which is divided into three different steps. The moisture of microalga Spirulina sp was vaporized at the first step, started at 27°C, and finished at 173°C with a decomposed mass of about 13.81% of the total initial mass. The second step began at the end of vaporize moisture at about 173°C and ended at around 618 °C. The gasification process occurred in volatile matter content and resulted mass loss of about 57.9% of Spirulina sp total mass. The last step showed the process of gasification of residual substances, started at the end of the volatile matter step, 618°C, and stopped at 995°C with a decomposed mass of 24.6% from total mass.
Co-Authors -, Kurnia Galuh Candra Kirana Abadi, M Tommy Hasan Abadi, M. Tommy Hasan Abdulloh Fuad Adim Firmansah Adim Firmansah Agusta Rakhmat Taufani Ahfidatul Husniyah Ahmad Atif Fikri Ahmad Kunari Limantoro Ahmad Munjin Nasih Ahmad Taufiq Ahmad Taufiq Alvi Hasanati Amania, Sulfa Andoko Andoko, Andoko Anggraining Widinintyas Anik Asmichatin Anik Nur Handayani Anwar Johari Arafah Husna Ari Priharta ARIF HIDAYAT Arif Hidayat Aripriharta - Atika Sari Puspita Dewi Bt. Sunardi, Asrianti Candra Kirana, Kurnia Galuh Chusnana Insyaf Yogiyanti D S Haryati Deny Yudo Wahyudi Deris Afdal Yusra Desyana, Nidya Dewi, Atika Puspita Sari Dhea Paradita Dice Kantarinata Elfa Ma’rifah Eny Latifah, Eny Erfandy Erfandy Erma Surya Yuliana Faiq Nur Saidah Faizatun Nisa’ Firriy Melati Sukma Fitriyana Fitriyana, Fitriyana Guangda Hu Haidar Ali Hari Wisodo, Hari Hasan Ismail Hawin Marlistya Priswayani Herlin Pujiarti Horng, Gwo Jiun Horng, Gwo-Jiun Jane Koswojo Kahfi, Sidik Al Kantarinata, Dice Kormil Saputra Kurnia Galuh Candra Kirana Kusubakti Andajani Laili, Mery Nur Larasati, Jade Rosida Lia Yuliati Lia Yuliati, Lia Lis Suswati Lya Rizka Herawati M Tommy Hasan Abadi M. Alfian Mizar M. Tommy Hasan Abadi M. Tommy Hasan Abadi Maria Claudia Sodakain Markus Diantoro Mohammad Basri Muchammad Harly Muhammad, Helmi Muhardjito Muhardjito Muhiban Syabani Muladi Muntholib Munzil Mustikasari, Ayu Azrurin Nadhira, Anissa Chairani Alfin Nadiya Miftachul Chusna Najmi, M. Ikhwan Nasikh Nur Asriyani Nurainin Yuli Daryanti Nurhayati Nurhayati Nuril Munfaridah, Nuril Nurul Hidayat Nurul Lathii Fatul Chamidah Ovita Ardanari Parno Pramono, Diki Dwi Putri, Tiara Zakiyah Rahmah, Anisa Ur Ramadhani, I Gusti Ayu Isnaini Fatha Ramadhani Retno Tri Wulandari Riantoni, Cicyn Rini Zaqiyah Risa Suryana Riski, Akhmad Afrizal Rizky Ayu Maharani Robi Kurniawan Rosmin, Norzanah Rr. Poppy Puspitasari Samsudin Anis Saparullah Saparullah Saparullah Sari, Eprilia Trikusuma Satia Nur Maharani Sentot Kusairi Shaharun, Maizatul Shima binti Shofi Hikmatuz Zahroh Silvi Rahmawati Wibowo Siti Aisyah Siti Zulaikah Subadra, ST Ulfawanti Intan Sukarni Sukarni Sumera Rafique Sunaryono Sunaryono Sunaryono, Sunaryono Supriana, Edi Supriyono Koes Handayanto Surayatum Muchoyimah Sutopo Sutopo Sutopo Sutopo Tiara Zakiyah Putri Tiwi Ananda Tri Kuncoro Umi Fitriyati Umie Lestari Wibowo, Kusmayanto Hadi Yahya Zakaria Yani Anggraeni YULMAISI ASMARITA Yulmaisi Dwi Asmarita Yunan Amza Muhammad Zainul Mustofa Zelin Norma Resty