Near-Infrared Nanophosphor Embedded in Mesoporous Silica Nanoparticle with High Light-Harvesting Efficiency for Dual Photosystem Enhancement
Journal
Angewandte Chemie - International Edition
Journal Volume
60
Journal Issue
13
Pages
6955-6959
Date Issued
2021
Author(s)
Abstract
Light-harvesting and conversion ability is important to promote plant growth, and especially when resources are limited. A near-infrared (NIR) nanophosphor embedded with mesoporous silica nanoparticles (MSN), ZnGa2O4:Cr3+,Sn4+ (ZGOCS), was developed and its optical properties were harnessed to enhance the photosynthetic ability of Brassica rapa spp. chinensis. The broad excitation of ZGOCS from the ultraviolet to the visible region allowed the conversion of extra light into near-infrared light (650–800 nm) and thus promoted the dual photosystem via the Emerson effect. ZGOCS@MSN was spherical with a size of 65±10 nm and good dispersion. A light conversion ability of up to 75 % under different wavelengths was achieved. Moreover, the electron transfer rate of photosynthesis increased by 100 % with a suitable ZGOCS@MSN concentration. Plant and animal models were used to explore the effects of the nanophosphor. ZGOCS@MSN distribution was tracked by monitoring its NIR emission in plant and animal tissues, demonstrating that this nanophosphor can be potentially utilized in plant growth. ? 2021 Wiley-VCH GmbH
Subjects
Animals; Electron transport properties; Nanoparticles; Optical properties; Silica; Silica nanoparticles; Animal tissue; Electron transfer rates; Light conversion; Light-harvesting; Mesoporous silica nanoparticles; Near infra red; Near infrared light; Visible region; Infrared devices
Type
journal article