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Iron-Modified Biochar Strengthens Simazine Adsorption and Decreases Simazine Decomposition in the Soil

Frontiers in Microbiology 2022 23 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Hongguang Cheng, Davey L. Jones, Dan Xing, David R. Chadwick David R. Chadwick Hongguang Cheng, David R. Chadwick Shan Lin, Davey L. Jones, David R. Chadwick Davey L. Jones, Davey L. Jones, Shan Lin, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Shan Lin, Shan Lin, David R. Chadwick Wenjing Ning, Hongguang Cheng, Shan Lin, Shan Lin, Davey L. Jones, Davey L. Jones, David R. Chadwick David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Zhaoxia Deng, Zhaoxia Deng, David R. Chadwick David R. Chadwick Xi Wang, David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Wenjing Ning, Davey L. Jones, David R. Chadwick Davey L. Jones, Paul W. Hill, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, David R. Chadwick David R. Chadwick Dan Xing, Paul W. Hill, David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Shan Lin, Shan Lin, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, David R. Chadwick David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, David R. Chadwick David R. Chadwick David R. Chadwick David R. Chadwick David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, David R. Chadwick David R. Chadwick Davey L. Jones, Davey L. Jones, David R. Chadwick David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, David R. Chadwick David R. Chadwick David R. Chadwick David R. Chadwick Davey L. Jones, Davey L. Jones, Davey L. Jones, Davey L. Jones, David R. Chadwick

Summary

Researchers found that iron-modified biochar significantly increased simazine herbicide adsorption in soil while slowing its microbial degradation, suggesting that while modified biochar reduces pesticide leaching risk, it may also extend herbicide persistence and alter soil microbial communities.

Currently, modified biochar has been successfully used in the remediation of soil polluted with heavy metals. However, the effects of the modified biochar on pesticides (such as simazine) are still unclear. Herein, the environmental fate of simazine, such as decomposition, leaching, and adsorption in unamended soil, in the soil amended with unmodified and modified biochar (biochar + FeCl<sub>3</sub>, biochar + FeOS, biochar + Fe) were evaluated. In addition, an incubation experiment was also performed to observe the influence of modified biochar on the microbial community and diversity in the soil. The results showed that modified biochar significantly decreased the decomposition of simazine in the soil compared to its counterpart. Modified biochar also reduced the concentration of simazine in the leachate. Compared with the control, soil microbial biomass in the soil amended with unmodified biochar, biochar + FeCl<sub>3</sub>, biochar + Fe, and biochar + FeOS was decreased by 5.3%, 18.8%, 8.7%, and 18.1%, respectively. Furthermore, modified biochar changed the structure of the microbial community. This shows that modified biochar could increase the soil adsorption capacity for simazine and change the amount and microbial community that regulates the fate of simazine in the soil. This study concludes that iron-modified biochar has positive and negative effects on the soil. Therefore, its advantages and side effects should be considered before applying it to the soil.

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