High-pressure carbon dioxide-hydrothermal enhance yield and methylene blue adsorption performance of banana pseudo-stem activated carbon

Jiang，Fenghao1; Cao，Daofan2; Hu，Shunxuan1; Wang，Yue3; Zhang，Yan1; Huang，Xiaohe4; Zhao，Hang1; Wu，Changning3,5; Li，Junguo3,5; Ding，Yulong2; Liu，Ke1,3,5

2022-06-01

10.1016/j.biortech.2022.127137

BIORESOURCE TECHNOLOGY   影响因子和分区

0960-8524

1873-2976

In order to reduce environmental risks and fungus disease spread of banana waste, the high-pressure CO-hydrothermal treatment was developed to produce hydrochar as a precursor of activated carbon from banana pseudo-stem(BP). SEM, BET, XRD, Raman and FTIR was used to investigate the influence mechanism of the high-pressure CO-hydrothermal pretreatment on the yield and methylene blue(MB) adsorption capacities of the activated carbon. The results show that although the adsorption capacities of BP after high-pressure CO-hydrothermal pretreatment(BPx) is decrease due to decrease of oxygen-containing functional group and flatter spatial structure, that of BPx after KOH activation(BPx-A) significantly increase and is higher than that of BP by direct KOH activation(BP-A). Because BP-A presents honeycomb porous microstructures and has a higher mesoporous structure(138–472 m/g), plentiful active sites and rich the abundant influential adsorption group of MB adsorption. In addition, compared to BP-A(0.68%), the total yield of BPx-A(2.42–9.11%) is 356–1340%.

Activated carbon Banana pseudo-stem High-pressure CO2-hydrothermal KOH activation Methylene blue adsorption

SCI ; EI

英语

第一 ; 通讯

Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06N532];

Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels

Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels

WOS:000802982100002

ELSEVIER SCI LTD

20221912083315

Adsorption ; Aromatic compounds ; Carbon dioxide ; Chemical activation ; Fruits ; High pressure effects ; Potassium hydroxide ; Waste treatment

Industrial Wastes Treatment and Disposal:452.4 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2 ; Agricultural Products:821.4

BIOLOGY & BIOCHEMISTRY

2-s2.0-85129476581

Scopus

1.Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China
2.Birmingham Centre for Energy Storage(BCES) & School of Chemical Engineering,University of Birmingham,United Kingdom,B15 2TT,United Kingdom
3.School of Innovation and Entrepreneurship,Southern University of Science and Technology,Shenzhen,518055,China
4.Department of Thermal Engineering,School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai,200093,China
5.Clean Energy Institute,Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China

Jiang，Fenghao,Cao，Daofan,Hu，Shunxuan,et al. High-pressure carbon dioxide-hydrothermal enhance yield and methylene blue adsorption performance of banana pseudo-stem activated carbon[J]. BIORESOURCE TECHNOLOGY,2022,354.

Jiang，Fenghao.,Cao，Daofan.,Hu，Shunxuan.,Wang，Yue.,Zhang，Yan.,...&Liu，Ke.(2022).High-pressure carbon dioxide-hydrothermal enhance yield and methylene blue adsorption performance of banana pseudo-stem activated carbon.BIORESOURCE TECHNOLOGY,354.

Jiang，Fenghao,et al."High-pressure carbon dioxide-hydrothermal enhance yield and methylene blue adsorption performance of banana pseudo-stem activated carbon".BIORESOURCE TECHNOLOGY 354(2022).