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Journal : JPSE (Journal of Physical Science and Engineering)

Suseptibilitas Magnetik dan Kelimpahan Mineral Magnetik pada Tanah Sawah di Lawang dan Soekarno-Hatta, Malang Nurainin Yuli Daryanti; Siti Zulaikah; Nandang Mufti; D S Haryati
JPSE (Journal of Physical Science and Engineering) Vol 3, No 2 (2018): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

Tanah sawah merupakan tanah khas antropogenik yang memiliki peran penting di seluruh dunia, tidak terkecuali di Indonesia. Seiring perkembangan pembangunan dan perkotaan tanah sawah menjadi beralih fungsi sehingga tercipta lingkungan sawah yang berada dekat dengan aktivitas manusia seperti industri. Upaya dalam memahami keadaan lingkungan seperti itu dapat dilakukan dengan agromagnetisme yaitu memahami sifat mineral magnetik yang terkandung dalam tanah pertanian atau perkebunan. Sifat magnetik sering digunakan sebagai indikator pencemaran dan perkembangan tanah, terutama untuk identifikasi oksida besi tanah dan sifatnya. Untuk memenuhi upaya tersebut dilakukanlah penelitian sifat mineral magnetik tanah sawah di Lawang dan Sokearno Hatta, Malang. Hasil penelitian diperoleh rentang nilai χlf 0,885 – 7,703 ×(10-6m3kg-1). Unsur yang mendominasi pada tanah sawah diantaranya Fe, Si, Al, Ca dengan nilai terendah ada pada Ca sebesar 4,5% dan yang tertinggi adalah unsur Fe sebesar 45,52%. DOI: http://dx.doi.org/10.17977/um024v3i22018p048
Synthesis and Characterization of Magnesium Acetate Doped MAPbI3 Perovskite Solar Cells with Carbon Electrodes Deris Afdal Yusra; Nandang Mufti; Eny Latifah
JPSE (Journal of Physical Science and Engineering) Vol 6, No 2 (2021): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

The organometal perovskite trihalide (MAPbI3) based solar cell has attracted the attention of many researchers because it has the potential to be a third-generation solar cell that has high efficiency, flexibility and transparency. However, this perovskite solar cell is sensitive to the environment and less stable. In this study, a performance study of perovskite solar cells with the addition of magnesium acetate was carried out in the MAPbI3 synthesis process and the use of carbon electrodes. In general, the perovskite solar cell arrangement in this study consisted of ITO/TiO2 mp/MAPbI3/carbon paste. Mesoporous TiO2 (mp) coating was carried out using the screen printing method, while MAPbI3 coating was carried out with a two-stage spin coating with the addition of magnesium acetate after PbI2 coating in the first stage. The samples obtained were then characterized using an X-Ray Diffractometer (XRD). Analysis of the performance of solar cells was carried out by measuring I-V and photoresponses using a solar simulator. XRD results show that MAPbI3 film has been formed even though there is still impurity of PbI2. The resulting solar cell performance has a value of Voc equals 3.45 V and Jsc equals 0.04 with an efficiency of around 0.09 per cent. In the measurement of the response photo, the increase in time value was 7.29 s and the decay time was 34.38 s. The low-efficiency value is probably due to the absence of a layer of hole transfer materials (HTM) and the presence of PbI2 impurities. However, the stability of the photoresponse pattern against time has shown quite good results even though the response is increased or the decay is slow.DOI: 10.17977/um024v6i22021p040
Photocatalyst Activity of TiO2/CQD Nanocomposite for Degradating Pesticide Contaminants in Water Bt. Sunardi, Asrianti; Candra Kirana, Kurnia Galuh; Mufti, Nandang; Wisodo, Hari
JPSE (Journal of Physical Science and Engineering) Vol 8, No 2 (2023): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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Abstract

This study investigates the effectiveness of TiO2/CQD composites on the pesticide degradation. TiO2/CQD composites has been successfully synthesized using hydrothermal methods. The samples were characterized by XRD, TEM, PL, BET, and UV-Vis. The result of XRD shows the addition of CQD does not affect the crystal phase of TiO2. The result of TEM shows that CQD are well deposited on the TiO2 surface. The particle size of the TiO2/CQD composite is getting larger after the addition of CQD compared to pure TiO2 and the average particle size distribution is about 109-114 nm. PL analysis found that the addition of CQD increased the intensity of NBE emissions while Tii decreased. The BET test result of the TiO2/CQD composite shows a surface area of 8.6710 m2/g. The pore diameter is 37.4 nm compared to pure TiO2. While the pore volume is 0.0754 cm3/g. Photocatalyst activity of TiO2/CQD against pesticides after 150 minutes of irradiation reached 89.9667%. TiO2/CQD photocatalyst has significant potential for pesticide water treatment. Further research is needed for large-scale optimization and evaluation.
Co-Authors -, Kurnia Galuh Candra Kirana Abadi, M Tommy Hasan Abadi, M. Tommy Hasan Abdulloh Fuad Achmadi, Ridho Adim Firmansah Adim Firmansah Agusta Rakhmat Taufani Ahfidatul Husniyah Ahmad Atif Fikri Ahmad Kunari Limantoro Ahmad Munjin Nasih Ahmad Taufiq Ahmad Taufiq Ali, Haidar Alvi Hasanati Amania, Sulfa Ananta, Sasmita Bagus Sang Kesuma Andoko Andoko, Andoko Anggraining Widinintyas Anik Asmichatin Anik Nur Handayani Anwar Johari Arafah Husna Ari Priharta ARIF HIDAYAT Arif Hidayat Aripriharta - ASMARITA, YULMAISI Asmarita, Yulmaisi Dwi Atika Sari Puspita Dewi Bagaskoro, Muhammad Cahyo Bt. Sunardi, Asrianti Candra Kirana, Kurnia Galuh Chamidah, Nurul Lathii Fatul Choirunnisa, Fadhillah Chusnana Insyaf Yogiyanti D S Haryati Daniar, Arizal Deny Yudo Wahyudi Deris Afdal Yusra Desyana, Nidya Dewi, Atika Puspita Sari Dhea Paradita Dian Alfiela, Wilda 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 HADI, MOKH. SHLIHUL Hafizh Prihtiadi Haidar Ali Hari Wisodo, Hari Hasan Abadi, M Tommy Hasan Abadi, M. Tommy 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. Alfian Mizar 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, I Gusti Ayu Isnaini Fatha Ramadhani Reswana, Pria Eka Retno Tri Wulandari Riantoni, Cicyn 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 Tiwi Ananda Tri Kuncoro Umi Fitriyati Umie Lestari Wibowo, Kusmayanto Hadi Yahya Zakaria Yani Anggraeni Yuliana, Erma Surya Yulmaisi Dwi Asmarita Yunan Amza Muhammad Zainul Mustofa Zaqiyah, Rini Zelin Norma Resty