Preparation of Aerogel Based on MOF(Cu)@biochar and Its Application on Slow-release N-Fertilizer

Zheng-xian WANG; Jian-kang LU; Cheng-yi WU; Meng-zhi ZHANG; Lu-fang YE

doi:10.14028/j.cnki.1003-3726.2022.02.005

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Preparation of Aerogel Based on MOF(Cu)@biochar and Its Application on Slow-release N-Fertilizer

更新时间：2022-09-09

- Preparation of Aerogel Based on MOF(Cu)@biochar and Its Application on Slow-release N-Fertilizer
- Polymer Bulletin Vol. 35, Issue 2, Pages: 32-41(2022)
- 作者机构：
  
  1.超弹性材料国家民委重点实验室(湖北民族大学),恩施 445000
  2.湖北民族大学化学与环境工程学院,恩施 445000
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2022.02.005
  CLC：
- Published：20 February 2022，
  
  Received：20 May 2021，
  
  Revised：27 September 2021，
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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 35(2):32-41(2022)
DOI：

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 35(2):32-41(2022) DOI： 10.14028/j.cnki.1003-3726.2022.02.005.

摘要

以羧甲基纤维素(CMC)、明胶和MOF(Cu)@biochar为原料

采用简单有效的冷冻干燥方法制备了(CMC/Gelatin/MOF(Cu)@biochar)杂化气凝胶

并用傅里叶变换红外光谱(FT-IR)、热重分析(TG)、X射线粉末衍射(XRD)、扫描电镜(SEM)和X射线光电子能谱(XPS)技术对其进行了表征;研究了MOF(Cu)@biochar含量、pH和不同的盐水溶液对杂化气凝胶溶胀行为的影响;以该气凝胶负载氯化铵

制备了一种新型缓释肥料(SRF)

并研究了含2%(wt)SRF的沙性土壤的保水能力;SRF在土壤中第30天的累积释放率为79.4%;肥料在土壤中释放符合非Fickian扩散和阳离子交换的协同作用机理。

Abstract

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

day. The release behavior of fertilizer in soil conformed to the synergistic mechanism of non-fickian diffusion and cation exchange.

关键词

杂化气凝胶溶胀生物炭缓释氮肥

Keywords

Hybrid aerogelSwellingBiocharSlow-release N-fertilizer

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