Fabrication of detonation nanodiamond@sodium alginate hydrogel beads and their performance in sunlight-triggered water release.

ABSTRACT: Agricultural water use accounts for around 70% of total water use in the world. Enhancing agricultural water use efficiency is a key way to cope with water shortage. Here, sunlight-responsive hydrogel beads consisting of sodium alginate (SA) matrix and detonation nanodiamond (DND) were fabricated by an ion gelation technique, which has potential applications in controlled water release. The interaction between the DND and SA matrix was investigated by Fourier transform infrared (FTIR) spectra and X-ray diffraction (XRD). UV-vis diffuse reflectance spectra verified DND can absorb solar energy in the UV, visible and even near-infrared regions. DND dispersed in the hydrogel matrix can absorb sunlight and generate heat, increasing the temperature of the matrix and resulting in slow release of

SUBMITTER: Zheng D 

PROVIDER: S-EPMC9070770 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature