Effect of MgCl2 Loading on the Yield and Performance of Cabbage-Based Biochar

Author:

Zhu Cui12,Huang Kuncheng13ORCID,Xue Mengyuan4,Zhang Yiming4,Wang Jiaquan1,Liu Lu4ORCID

Affiliation:

1. School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China

2. Anhui Jincheng Anhuan Technology Development Co., Ltd., Hefei 230000, China

3. Anhui Institute of Quality and Standardization, Hefei 230002, China

4. School of Engineering, Anhui Agricultural University, Hefei 230036, China

Abstract

Converting more CO2 absorbed by plant photosynthesis into biomass-activated carbon effectively reduces carbon emissions. In this study, we used a one-step preparation of biomass-activated carbon loaded with MgO nanoparticles to investigate the effect of Mg loading on the catalytic pyrolysis process. The influences of magnesium loading on biochar yield and fixed carbon production were assessed. The addition of 1% Mg weakened the carbonyl C=O, inhibited the dehydroxylation reaction, enhanced the C-H signal strength, and the formation of MgO inhibited the weaker- bound substituent breakage. Additionally, the addition of magnesium altered the morphological features and chemical composition of the biochar material. It also increased the activated carbon mesoporosity by 3.94%, biochar yield by 5.55%, and fixed carbon yield by 12.14%. The addition of 1% Mg increased the adsorption capacity of the activated carbon to potassium dichromate, acid magenta, methylene blue, and tetracycline effluents by 8.71 mg, 37.15 mg, 117.68 mg, and 3.53 mg, respectively. The results showed that MgCl2 played a significant role in promoting the thermal degradation of biomass and improving the solid yield and adsorption performance of activated carbon.

Funder

Hefei City’s Independent Innovation Policy to Transfer Research and Development Projects

Anhui Provincial Major Science and Technology Project

Publisher

MDPI AG

Subject

Bioengineering

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