Biochar is a carbonaceous material generated by pyrolysis of biomass under the condition of low oxygen content. Because of its large specific surface area, developed pore structure and rich oxygen-containing functional groups on the surface, it has a good adsorption and fixation effect on organic pollutants in soil, water and sediments. It is considered as an ideal and universal adsorption material and is widely used in the field of environmental pollution control. This paper reviews the preparation, application and defects of biochar. In order to provide reference value for the improvement of potential value and utilization rate of biochar.

Xurundong Kan, Zhiying Zhang, Jingwei Pu, Tiaozhen Zheng, Shixi Zhao. Research progress in preparation and application of biological carbon. Academic Journal of Environment & Earth Science (2023) Vol. 5 Issue 1: 56-61. https://doi.org/10.25236/AJEE.2023.050108.

[1] Cai Xiaofeng, Zhang Tao. Present situation, development trend and research of biomass pyrolysis technology [J]. Industrial Boiler, 2011(2): 4.

[2] Zheng Qingfu, Wang Yonghe, Sun Yueguang, et al. FTIR study on the structure and properties of biochars prepared by different materials and carbonization methods [J]. Spectroscopy and Spectral Analysis, 2014(4): 962-966

[3] Xia Wen. Preparation of biochar and study on its adsorption of heavy metals in soil [D]. Nanjing Normal University, 2016.

[4] Wang Dou, Guo Haiyan, Li Yang, et al. Effect of preparation temperature of earthworm dung biochar on adsorption performance of methyl orange [J]. Acta Environmental Engineering, 2016, 10(9): 7.

[5] Ren Shaoyun, Cheng Hongdan, Zhang Weiping, et al. Research progress of preparation methods of biochar [J]. Journal of Science of Normal University, 2017, 37(8): 3.

[6] Liu Ronghou, Wang Hua. Effect of biomass pyrolysis reaction temperature on bio-oil yield and characteristics [J]. Journal of Agricultural Engineering, 2006, 22(006):138-143.

[7] Wang Yajun, Li Shanshan, Yao Zonglu, Zhao Lixin, Qiu Ling. Research progress of biochar production technology and returning effect [J]. Modern Chemical Industry, 2017, (5): 17-20.

[8] Zhang Qisheng, Ma Zhongqing, Zhou Jianbin. Recognition of biomass gasification technology [J]. Journal of Nanjing Forestry University: Natural Science Edition, 2013, 37(1):1-10.

[9] Zhao Hongtao. Study on biomass gasification and kinetics based on real-time thermogravimetric analysis system [D]. Xiamen University, 2018.

[10] Mi Tie, Tang Rujiang, Chen Hanping, et al. Biomass gasification technology and its research progress [J]. Chemical Equipment Technology, 2005, 26(002): 50-56.

[11] Tu Junling. Study on high-temperature steam gasification of sawdust/sawdust charcoal to prepare syngas [D]. Chinese Academy of Forestry, 2012.

[12] C Franco, Pinto F, Cabrita] I. The study of reactions influencing the biomass steam gasification process☆ [J]. Fuel, 2003.

[13] Wan Yiqin, Wang Yingkuan, Liu Yuhuan, et al. Research progress of biomass microwave pyrolysis technology [J]. Agricultural Mechanization Research, 2010(3): 7.

[14] Ravikumar C, Senthil Kumar P, Subhashni S K, et al.  Microwave assisted fast pyrolysis of corn cob, corn stover, saw dust and rice straw: Experimental investigation on biooil yield and high heating values [J]. Sustainable Materials and Technologies, 2017, 11: 19-27. 

[15] Duran Jimenez G, Monti T, Titman J J, et al. New insights into microwave pyrolysis of biomass: Preparation of carbon-based products from pecan nutshells and their application in wastewater treatment [J]. Journal of Analytical and Applied Pyrolysis, 2017, 124: 113-121. 

[16] Dbalina B, Reddy RB, Vinu R. Production of carbon nanostructures in biochar, bio-oil and gasesfrom bagasse via microwave assisted pyrolysis using Fe and Co assusceptors [J]. Journal of Analytical and Applied Pyrolysis, 2017, 124: 310-318. 

[17] Thraneedhar V, Senthil Kumar P, Saravanan A, et al. Prediction and interpretation of adsorption parameters for the sequestration of methylene blue dye from aqueous solution using microwave assisted corncob activated carbon [J]. Sustainable Materials and Technologies, 2017, 11: 1-11. 

[18] Peng Jinxing, Liu Xinyuan, Bao Zhenbo. Research progress of microwave pyrolysis technology of biomass [J]. Applied Chemical Engineering, 2018, 47(7): 6.

[19] Gheorghe C, Marculescu C, Badea A, et al. Effect of Pyrolysis Conditions on Bio-Char Production from Biomass. 2009.

[20] Meng Lingyang, Xin Shuzhen, Su Dechun. Effects of different inert organic carbon materials on soil cadmium speciation and bioavailability [J]. Journal of Agricultural Environmental Sciences, 2011, 30(8): 8.

[21] Kolb S E, Fermanich K J, Dornbush M E. Effect of Charcoal Quantity on Microbial Biomass and Activity in Temperate Soils [J]. Soil Science Society of America Journal, 2009, 73(4): 1173-1181.

[22] Czimczik C I, Masiello C A. Controls on black carbon storage in soils [J]. Global Biogeochemical Cycles, 2007, 21(3).

[23] Xu Yanzhe, Fang Zhanqiang. Research Progress of Biochar Remediation of Heavy Metals in Soil [J]. Environmental Engineering, 2015, 33(2): 156-159.

[24] Ji Jianghao, Xu Siqin. Research progress in preparation and application of sludge biochar [J]. Science and Technology Innovation and Productivity, 2021, 000(005): 41-46.

[25] Peng Jinxing, Liu Xinyuan, Bao Zhenbo Research progress in microwave pyrolysis technology of biomass [J] Applied Chemical, 2018, 47 (7): 6

[26] Deng S Ting Fungal biomass with grafted poly (acrylic acid) for enhancement of Cu and Cd biosorption [J]. Langmuir, 2005, 21; 5940-5948

[27] Chen,X. C,Chen,G. C., Chen, L. G., etc., Adsorption of copper and zinc by biochars produced from pyrolysis of hardwood andcorn straw in aqueous solution [J]. Bioresource Technology, 2011, 102(19), 8877-8884)

[28] Beesley, L., Dickinson, N., Carbon and trac element fluxes in the pore water of an urban soil following greenwaste compost, woody and biochar amendments, inoculated with the earthworn Lumbricus terrestris [J]. Soil Biology&Biochemistry, 2011, 43(1), 188-196)

[29] A.zargohar, R., Dalai, A., K., The direct oxidation of hydorgen sulfide over activated carbons prepared from lignite coal and biochar [J]. Canadian Journal of Chemical Engineering, 2011, 89(4), 844-853)

[30] Bagreev, A., Bandosz, Y., J., Wood-based activated carbons as adsorbents of hydrogen sulfide: A study of adsorption and water regeneration processes [J]. Industrial & Engineering Chemistry Research, 2000, 39(10), 3849-3855.)

[31] Xu Xiaoyun. Study on the mechanism of adsorption and transformation of inorganic pollutants by biochar [D]. Shanghai Jiaotong University, 2015.

[32] Zhang Youchi, Li Huidan. Effects of biochar on microbial community structure and biogeochemical function in soil [J]. Journal of Ecological Environment, 2015, 24 (05): 898-905. doi: 10.16258/j.cnki. 1674-5906.2015.