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Characteristics of Modified Biochar Obtained from Banana Stem by H2O2 and Its Effect on Cr Uptake by Maize
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Shuhui SONG1, 2, Shuang YANG3, Chao WANG1, Puwang LI1, Jing JIAO1, Siru LIU1, Zuyu HE1, Yunhao LIU1, Chuang ZHOU1, Ziming YANG1, *
Chinese Journal of Tropical Crops | 2024, 45(6) : 1262 - 1272
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Chinese Journal of Tropical Crops | 2024, 45(6): 1262-1272
• Post-harvest Treatment & Quality Safety •
Characteristics of Modified Biochar Obtained from Banana Stem by H2O2 and Its Effect on Cr Uptake by Maize
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Shuhui SONG1, 2, Shuang YANG3, Chao WANG1, Puwang LI1, Jing JIAO1, Siru LIU1, Zuyu HE1, Yunhao LIU1, Chuang ZHOU1, Ziming YANG1, *
Affiliations
  • 1.South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Tropical Crops Nutrition of Hainan Province, Zhanjiang, Guangdong 524091, China
  • 2.College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
  • 3.College of Tropical Crops, Yunnan Agricultural University, Pu’er, Yunnan 665000, China
Published: 2024-06-25 doi: 10.3969/j.issn.1000-2561.2024.06.018
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Biochar was modified with different concentrations of hydrogen peroxide, and the differences in its structural characteristics were analyzed to study the modification effect of hydrogen peroxide on biochar obtained from banana stem and the effect of modified biochar on Cr absorption of maize under Cr stress. The effects of modified biochar on the growth, Cr uptake and accumulation of maize under Cr stress were studied. With the increase of hydrogen peroxide concentration, the number of oxygen-containing functional groups on the surface of biochar increased, while the aromatics decreased and the polarity increased. After the modification, the surface of biochar was smooth, the pore diameter increased, and the specific surface area and pore volume decreased with the increase of hydrogen peroxide concentration. Modified biochar by 20% and 30% hydrogen peroxide mainly fixed heavy metals through the adsorption of functional groups, reduced its biological activity, and reduced the Cr absorption and accumulation by corn. The study showed that 20% and 30% hydrogen peroxide significantly changed the surface structure of biochar, which was conducive to alleviating the toxicity of heavy metal Cr to corn plants. 30% hydrogen peroxide modified biochar promoted the growth of corn under Cr stress.

hydrogen peroxide (H2O2)  /  biochar  /  Cr  /  maize  /  growth
Shuhui SONG, Shuang YANG, Chao WANG, Puwang LI, Jing JIAO, Siru LIU, Zuyu HE, Yunhao LIU, Chuang ZHOU, Ziming YANG. Characteristics of Modified Biochar Obtained from Banana Stem by H2O2 and Its Effect on Cr Uptake by Maize[J]. Chinese Journal of Tropical Crops, 2024 , 45 (6) : 1262 -1272 . DOI: 10.3969/j.issn.1000-2561.2024.06.018
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Article Info
doi: 10.3969/j.issn.1000-2561.2024.06.018
  • Receive Date：2023-01-28
  • Online Date：2026-06-24
  • Published：2024-06-25
Article Data
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History
  • Received：2023-01-28
  • Revised：2023-04-13
Funding
Affiliations
    1.South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Tropical Crops Nutrition of Hainan Province, Zhanjiang, Guangdong 524091, China
    2.College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
    3.College of Tropical Crops, Yunnan Agricultural University, Pu’er, Yunnan 665000, China
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https://castjournals.cast.org.cn/joweb/rdzwxb/EN/10.3969/j.issn.1000-2561.2024.06.018
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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