Title

The Effect of a Mixture of Magnesium Oxide and Titanium Dioxide Nanoparticles on Soil Health and the Growth of Vigna Radiata

School Name

Spring Valley High School

Grade Level

10th Grade

Presentation Topic

Environmental Science

Presentation Type

Non-Mentored

Abstract

The usage of nanoparticles, especially metal-based nanoparticles, is growing in various fields. As usage increases, environmental exposure grows as well. This study aims to examine the impact that a NP (nanoparticle) system of TiO2 and MgO has on the environment by studying its effects on Vigna radiata, more commonly known as mung beans. It was hypothesized that the NP system would cause plant height to decrease, soil pH to decrease, and soil salinity to increase. In this experiment 90 plants were grown for three weeks. The plants were divided into three groups, a control group, a group receiving 0.25 g of each NP, and a group receiving 0.5 g per NP. A measurement of plant height and soil pH was taken each week and a final measurement of soil salinity was taken at the end of the experimental period. It was found, after doing one-way ANOVA calculations and a Tukey HSD test, that there was a statistically significant decrease in plant height, an increase in soil pH, and no difference in soil salinity. This study shows that NP systems can have drastically different effects than when exposure to a single NP occurs. Ti-based NPs have been shown to increase plant height, but in this experiment, the overall impact led to a decrease in plant height. Overall, this study found that the NP system, based on the factors measured in this experiment, has an overall negative impact on the environment.

Location

HSS 215

Start Date

4-2-2022 10:45 AM

Presentation Format

Oral and Written

Group Project

No

COinS
 
Apr 2nd, 10:45 AM

The Effect of a Mixture of Magnesium Oxide and Titanium Dioxide Nanoparticles on Soil Health and the Growth of Vigna Radiata

HSS 215

The usage of nanoparticles, especially metal-based nanoparticles, is growing in various fields. As usage increases, environmental exposure grows as well. This study aims to examine the impact that a NP (nanoparticle) system of TiO2 and MgO has on the environment by studying its effects on Vigna radiata, more commonly known as mung beans. It was hypothesized that the NP system would cause plant height to decrease, soil pH to decrease, and soil salinity to increase. In this experiment 90 plants were grown for three weeks. The plants were divided into three groups, a control group, a group receiving 0.25 g of each NP, and a group receiving 0.5 g per NP. A measurement of plant height and soil pH was taken each week and a final measurement of soil salinity was taken at the end of the experimental period. It was found, after doing one-way ANOVA calculations and a Tukey HSD test, that there was a statistically significant decrease in plant height, an increase in soil pH, and no difference in soil salinity. This study shows that NP systems can have drastically different effects than when exposure to a single NP occurs. Ti-based NPs have been shown to increase plant height, but in this experiment, the overall impact led to a decrease in plant height. Overall, this study found that the NP system, based on the factors measured in this experiment, has an overall negative impact on the environment.