Zheng-xian WANG, Jian-kang LU, Cheng-yi WU, Meng-zhi ZHANG, Lu-fang YE. Preparation of Aerogel Based on MOF(Cu)@biochar and Its Application on Slow-release N-Fertilizer[J]. Polymer Bulletin, 2022,35(2):32-41.
Zheng-xian WANG, Jian-kang LU, Cheng-yi WU, Meng-zhi ZHANG, Lu-fang YE. Preparation of Aerogel Based on MOF(Cu)@biochar and Its Application on Slow-release N-Fertilizer[J]. Polymer Bulletin, 2022,35(2):32-41. DOI: 10.14028/j.cnki.1003-3726.2022.02.005.
A novel slow-release fertilizer (SRF) encapsulated by hybrid aerogel was prepared via a simple and effective freeze-drying method. The hybrid aerogel was characterized by Fourier transform infrared spectroscopy (FT-IR)
thermal gravimetric analysis (TG)
X-ray powder diffraction (XRD)
scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) techniques. The effects of MOF(Cu)@biochar content
pH and different saline solutions on swelling behavior of hybrid aerogel were studied. The water-retention capability of soil with 2%(wt) SRF was investigated. The cumulative release ratio of SRF in soil was 79.4% at 30
th
day. The release behavior of fertilizer in soil conformed to the synergistic mechanism of non-fickian diffusion and cation exchange.