04154nas a2200409 a 4500 20260818153717.0 250120s20239999th u m tt 000 eng d .b12444285 AIT Thesis no.ISE-23-05 Kaiyum, Md Abdul Long-term and selective release of agrochemicals supported in porous materials Pathum Thani : Asian Institute of Technology, 2023 91 leaves : ill.+ 1 online resource Thesis ; no. ISE-23-05 Thesis (M. Sc.) - Asian Institute of Technology, 2023 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Bio-Nano Material Science and Engineering, School of Engineering and Technology Agrochemicals (e.g., fertilizers, pesticides, growth hormones, etc.) are essential to meet the global need for food, both quantitatively and qualitatively, but their unsafe, unselective, and repeated administration pose a hazard to the environment, human health, and a successful economy. Researchers are looking into ways to increase agricultural production as a result of growing sustainability worries about potential pesticide waste. In that regard, delivery methods based on Metal-Organic Frameworks (MOFs) represents newly conducted research field recently gaining increasing consideration in agriculture. Previous studies have already been performed on Cu-based MOFs (e.g., HKUST-1) as delivery agents in the agricultural sector. Moreover, the use of Copper salts is already established (e.g., CuSO4 as fungicide), and it is also an essential element for plants, therefore showing a dual nature of nutrients and pesticides. In this research, HKUST-1 was fabricated via a convenient one-step procedure involving the utilization of basic copper carbonate (BCC), a natural component of the minerals malachite or azurite. The synthesis was also performed in the presence of guest species like fertilizer (e.g., Urea), growth regulator (e.g., Gibrerelic Acid), insecticide (e.g., Imidacloprid), and fungicides (e.g., Mancozeb and Propineb). The guest@HKUST-1 system has been treated under different pH, temperature, and salinity, which simulate the soil parameters, to investigate the release profile of Urea, Mancozeb (MAN), Propineb (PRO), Imidacloprid (IMD), and Gibrerelic Acid (GA). The encapsulation capacities were 197.83, 213.22, 208.69, 218.75, and 244.38 mg/g for MAN, PRO, IMD, GA, and urea, respectively. The encapsulation showed these characteristics after more than seven days of sustained release. UV Visible spectroscopy (UV-Vis.), Atomic Absorption Spectrometer (AA-7000, Shimadzu), Thermo Gravimetric Analyzer (TGA-701, Leco), Dynamic light scattering (DLS, Malvern, AERO S), X-ray diffractometer (XRD, Bruker, D8 Advanced), Fourier transform infrared (FTIR, INFRA-3000 A), etc. have been used to determine the concentration, copper release, thermal stability, particle size, structural parameters, bonding characteristics, and surface area, respectively. Metal-organic frameworks Agricultural chemicals Analysis Porous materials Ricco, Raffaele, Chairperson Bora, Tanujjal, Examination Committee Xue, Wenchao, Examination Committee His Majesty the King{u2019}s Scholarships (Thailand), Scholarship Donor Asian Institute of Technology. Thesis ; no. ISE-23-05 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B21822 .b12444285 mnarc a 250214 0 250124 m a a 0 mnarc mnarc 40 61 Barcode : 30020220007317 CREATED : 2025-01-20 RECORD # : i13528634 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : - CREATED : 2025-01-20 RECORD # : i13528646 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 70555 70555 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ISE-23-05 30020220007317 2026-08-18 15:37:17 1 2026-08-18 40 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ISE-23-05 2026-08-18 15:37:17 1 2026-08-18 61