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All Journal Greensusmater Jurnal Pengabdian pada Masyarakat
Nurfitria, Rima
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PELATIHAN HIDROPONIK, AKSI HIJAU WARGA: MERAKIT HIDROPONIK GUNA MEWUJUDKAN KETAHANAN PANGAN LOKAL Suyanto, Agus; Nurfitria, Rima; Widarti, Sri; Andayani, Sri; Setiawan, Setiawan; Suryani, Rini; Astar, Ismail; Dominikus Bancin, Hardi; Tutik Purwani Irianti, Agnes; Rahayu, Sri; Ellyta, Ellyta; Asti, Asti; Yuliana Ayen, Rosalina; Oktarianti, Sherly; Aini, Fitriana
Dianmas Bhakti: Jurnal Pengabdian pada Masyarakat Vol 2 No 2 (2025): Dianmas Bhakti: Jurnal Pengabdian pada Masyarakat
Publisher : LPPM Universitas Panca Bhakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54035/dianmas.v2i2.595

Abstract

Hydroponic cultivation training was conducted for residents of Hydroponic cultivation training was conducted for 40 residents of Gang Kuini I Jeruju, West Pontianak District, aiming to address limited land availability and support local food security. This community service program utilized a participatory approach through socialization, hands-on training, and mentoring. The main issues addressed included narrow land constraints, lack of knowledge about modern agricultural technology, and community dependence on vegetable markets for daily needs. The training introduced wick system hydroponics using simple materials that were easy to implement in household yards. The methods included needs assessment, training preparation, technical socialization, hands-on hydroponic equipment construction, seedling planting, and post-training evaluation. Pre-test and post-test evaluation results showed significant improvements: knowledge aspect increased from 41% to 86%, and attitude aspect increased from 50% to 89%. Results showed that 88% of participants expressed interest in trying hydroponics, and 90% believed hydroponics supports local food security. This activity contributed positively toward household food security by enabling residents to produce fresh vegetables sustainably. The training fostered a green movement among residents while reducing household food expenditures and enhancing nutritional quality for families.
Development and materials characterization of hydrothermally grown niobium-doped BiVO4 for ciprofloxacin and methylene blue degradation Kurnia, Nadiya Rifqah; Amanda, Tia; Nurfitria, Rima; Aflaha, Rizky; Widakdo, Januar; Rianjanu, Aditya
Greensusmater Vol. 2 No. 2 (2025)
Publisher : Green and Sustainable Materials Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62755/greensusmater.2025.2.2.55-61

Abstract

This study reports the synthesis and characterization of niobium-doped BiVO4 (NbX-BiVO4, X = 0, 2, 4, 6 mol%) photocatalysts via a hydrothermal method, aimed at enhancing the degradation of organic pollutants under UV irradiation. X-ray diffraction (XRD) analysis confirmed the preservation of the monoclinic BiVO4 structure in all samples, although minor secondary features were detected in doped compositions. Field emission scanning electron microscope (FESEM) imaging revealed progressively rougher, nanostructured surfaces with increasing Nb content, while UV-Vis and photoluminescence (PL) spectroscopy indicated modified band structures and reduced recombination rates. Photocatalytic performance was evaluated using ciprofloxacin (CIP) and methylene blue (MB) as model pollutants. For CIP, the highest activity was achieved by Nb6-BiVO4 (k value of 0.09 min‒1 g–1), attributable to enhanced charge separation and increased surface texture. In contrast, MB degradation favored the undoped BiVO4 (k value of 0.29 min‒1 g–1) due to stronger dye adsorption, despite the optical improvements in doped samples. The findings demonstrate that Nb doping improves BiVO4 photocatalytic activity through synergistic structural and electronic effects, with pollutant-specific responses highlighting the importance of matching catalyst design to target contaminant properties.
Niobium oxide electrode performance boosted by molybdenum doping and calcination for supercapacitor applications Al Mubarok, Muhammad Ramadhan; Nurfitria, Rima; Aflaha, Rizky; Nurfani, Eka; Rianjanu, Aditya
Greensusmater Vol. 2 No. 2 (2025)
Publisher : Green and Sustainable Materials Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62755/greensusmater.2025.2.2.62-69

Abstract

Niobium pentoxide (Nb2O5) is a promising pseudocapacitive material for supercapacitor applications due to its high theoretical capacitance and electrochemical stability. However, its practical performance is limited by low electrical conductivity and poor ion transport kinetics. In this work, we report the enhancement of Nb2O5 electrode performance through molybdenum (Mo) doping and thermal calcination. Mo-doped Nb2O5 nanostructures were synthesized via a hydrothermal method followed by calcination at 500 °C. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) confirmed a rougher morphology and homogeneous Mo distribution in the doped sample. X-ray diffraction (XRD) revealed a structural transformation from a deformed orthorhombic phase in pristine Nb2O5 to a more crystalline pseudohexagonal phase in Mo-Nb2O5-500. Electrochemical analysis demonstrated a significant improvement in capacitive behavior, with Mo-Nb2O5-500 achieving a specific capacitance of 55.3 F/g at 5 mV/s, which is five times higher than the undoped sample. All electrodes exhibited stable cycling performance. These results highlight the synergistic role of Mo doping and calcination in enhancing the electrochemical properties of Nb2O5, offering a viable approach for developing high-performance pseudocapacitor electrodes.
Co-Authors Aflaha, Rizky Agus Suyanto Aini, Fitriana Al Mubarok, Muhammad Ramadhan Amanda, Tia Asti Asti Dominikus Bancin, Hardi Eka Nurfani Ellyta Ellyta Ismail Astar Januar Widakdo Kurnia, Nadiya Rifqah Oktarianti, Sherly Rianjanu, Aditya Rini Suryani, Rini Setiawan Setiawan Sri Andayani SRI RAHAYU Sri Widarti, Sri Tutik Purwani Irianti, Agnes Yuliana Ayen, Rosalina