Physicochemical and adsorption properties of biochar from biomass-based pyrolytic polygeneration: effects of biomass species and temperature
Physicochemical and adsorption properties of biochar from biomass-based pyrolytic polygeneration: effects of biomass species and temperature
复制标题
生物质热解多联产生物炭的物理化学和吸附特性：生物质种类和温度的影响
DOI：
10.1007/s42773-021-00102-5
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发表时间：
2021-07
期刊：
影响因子：
12.7
通讯作者：
Chen Hanping
中科院分区：
文献类型：
--
作者：
Zhang Xiong;Zheng Huanhuan;Wu Jing;Chen Wei;Chen Yingquan;Xuezhi Gao;Yang Haiping;Chen Hanping
生物质热解多联产技术获得的生物质炭具有可再生性、多孔性和良好的表面化学性质，具有很大的吸附潜力。热解温度和进料是制备生物炭的重要因素。因此，在这项研究中，这些因素对生物炭的理化性质的影响进行了研究。以水、CO2、苯酚和亚甲基蓝（MB）为吸附质，研究了生物炭对CO2的吸附性能。吸附容量和物理化学性质之间的相关性，确定使用皮尔逊相关性。结果表明，温度对生物炭的结构有显著影响。生物量物种的影响也很明显。棉秆、竹秆和油菜秆的大孔数量及其对总表面积的贡献随着温度的升高而增加，而微孔数量在高温下减少。在相同温度下，不同物种生物炭的大孔、中孔和微孔组分存在明显差异。生物炭对水和CO2的吸附量与商品活性炭相近，而对苯酚和亚甲基蓝的吸附量低于商品活性炭。与官能团相比，孔隙率对生物炭吸附性能的影响更为显著。微孔的表面积与CO2、苯酚和MB的吸附量呈显著正相关。羟基与吸水性呈正相关。
Biochar obtained from a biomass pyrolytic polygeneration technology exhibits great potential as an adsorbent, because of its renewability, porosity and desirable surface chemical properties. Pyrolysis temperature and feed are important elements in the preparation of biochar. Thus, the effects of these factors on the physicochemical properties of biochar were investigated in this study. The adsorption of biochar was evaluated using water, CO2, phenol, and methylene blue (MB) as adsorbates. The correlation between adsorption capacity and physicochemical properties was determined using the Pearson correlation. Results indicated that temperature could significantly affect the structure of biochar. The effects of biomass species were also noticeable as well. The number of macropores and their contribution to the total surface area for cotton stalk, bamboo, and rapeseed stalk increased with an increase in temperatures, meanwhile, the number of micropores decreased at high temperatures. At the same temperature, the macropore, mesopore, and micropore components of biochar produced by different species were markedly different. The water adsorption and CO2adsorption of biochar were close to those of commercial activated carbon (AC), whereas the adsorption capacity of untreated biochar on phenol and MB was less than that of AC. Porosity exerted more significant effects on the adsorption capacity of biochar, compared with functional groups. The surface area of the micropores exhibited a significant positive correlation with the adsorption of CO2, phenol, and MB. The hydroxyl group was positively correlated with water adsorption.
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影响因子：
11.4
作者：
P. Fu;Song Hu;L. Sun;J. Xiang;Tao Yang;Anchao Zhang;Junying Zhang
通讯作者：
P. Fu;Song Hu;L. Sun;J. Xiang;Tao Yang;Anchao Zhang;Junying Zhang
DOI：
10.1002/9783527818488.ch15
发表时间：
2019-11
期刊：
Deep Eutectic Solvents
影响因子：
--
作者：
Yingying Zhang;Xiaohua Lu;Xiaoyan Ji
通讯作者：
Yingying Zhang;Xiaohua Lu;Xiaoyan Ji
NaOH预处理稻壳制备的活性炭低温溶液炭化和H3PO4活化去除染料
影响因子：
11.4
作者：
Chen, Yun;Zhai, Shang-Ru;Song, Xiao-Wei
通讯作者：
Song, Xiao-Wei
DOI：
10.1016/bs.ache.2021.10.005
发表时间：
2021
期刊：
Advances in Chemical Engineering
影响因子：
--
作者：
Xiaolin Wang;Fengyuan Zhang;Lifeng Li;Hai Zhang;Shuai Deng
通讯作者：
Xiaolin Wang;Fengyuan Zhang;Lifeng Li;Hai Zhang;Shuai Deng
影响因子：
5.3
作者：
D. Medic;M. Darr;Ajay V. Shah;S. J. Rahn
通讯作者：
D. Medic;M. Darr;Ajay V. Shah;S. J. Rahn