WITHDRAWN Study on the adsorption of phosphate by composite biochar of phosphogypsum and rape straw

Liu, Yu; Li, Fengyu; Li, Qin

doi:10.1016/j.biteb.2023.101536

Cited by 1 publication

(1 citation statement)

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“…However, the mechanism of phosphorus removal is not limited to this. Liang et al [ 129 ] found that the -OH peak at 3422 cm −1 was enhanced due to phosphate adsorption when compared to the biochar before. FTIR phosphorus adsorption, which may be caused by the formation of hydrogen bonds, is considered to be only one of the mechanisms of phosphorus adsorption.…”

Section: Adsorption Mechanismmentioning

confidence: 99%

Efficient Adsorption of Nitrogen and Phosphorus in Wastewater by Biochar

Wu,

Quan,

Chen

et al. 2024

Molecules

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Nitrogen and phosphorus play essential roles in ecosystems and organisms. However, with the development of industry and agriculture in recent years, excessive N and P have flowed into water bodies, leading to eutrophication, algal proliferation, and red tides, which are harmful to aquatic organisms. Biochar has a high specific surface area, abundant functional groups, and porous structure, which can effectively adsorb nitrogen and phosphorus in water, thus reducing environmental pollution, achieving the reusability of elements. This article provides an overview of the preparation of biochar, modification methods of biochar, advancements in the adsorption of nitrogen and phosphorus by biochar, factors influencing the adsorption of nitrogen and phosphorus in water by biochar, as well as reusability and adsorption mechanisms. Furthermore, the difficulties encountered and future research directions regarding the adsorption of nitrogen and phosphorus by biochar were proposed, providing references for the future application of biochar in nitrogen and phosphorus adsorption.

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Section: Adsorption Mechanismmentioning

confidence: 99%