A cost-effective synthesis of heteroatom-doped porous carbon by sulfur-containing waste liquid treatment: As a promising adsorbent for CO2 capture

Guo, Xiaofei; Zhang, Guojie; Wu, Chen; Li, Jun; Li, Guoqiang; Zhao, Yuqiong; Wang, Ying; Xu, Ying

doi:10.1016/j.jece.2021.105165

Cited by 35 publications

(11 citation statements)

References 59 publications

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“…16 Guo et al, prepared N-, S-, and Ocodoped new porous activated carbon with excellent CO 2 capture performance using sulfur-containing waste liquid (SCWL) as a modifier and potassium oxalate (K 2 C 2 O 4 ) as a mild activator. 17 Poplar wood fragments or powders contain hemicellulose, cellulose, and lignin. Mixed raw materials and single-component raw materials exert a great influence on the formation of water carbon microspheres.…”

Section: Introductionmentioning

confidence: 99%

“…Cheng et al, produced biochar at 400–800 °C by pyrolysis of poplar sawdust, which is used as a sustainable adsorbent to investigate the adsorption performance of Pb 2+ /Cd 2+ from wastewater . Guo et al, prepared N-, S-, and O-codoped new porous activated carbon with excellent CO 2 capture performance using sulfur-containing waste liquid (SCWL) as a modifier and potassium oxalate (K 2 C 2 O 4 ) as a mild activator . Poplar wood fragments or powders contain hemicellulose, cellulose, and lignin.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Adsorption Properties of Green Sustainable Biomass Carbon Microspheres

Hao

Zhang

Wang

et al. 2022

Ind. Eng. Chem. Res.

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In this study, carbon microspheres (CSn) with various oxygencontaining functional groups (−OH, −C�O, −COOR) were prepared through hydrothermal carbonization at different temperatures. The raw material is the micro-/nanocellulose prepared from factory poplar waste. Methylene blue (MB), as the model dye, was used to verify the adsorption performances. The influences of different adsorption parameters, such as adsorption time, temperature, solution pH, and ion concentration, were analyzed. The adsorption kinetics was well fitted to the pseudo-second-order model. The adsorption isotherm was better described by the Langmuir isotherm with the maximum adsorption capacity (536.64 mg g −1 ) at room temperature. Using Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), and adsorption processes, it was confirmed that the interactions between the oxygen-containing functional groups and methylene blue were the key factor affecting the adsorption. At the same time, it was further confirmed that the content of the oxygen-containing functional groups of the CSn had been relatively reduced with the increases in the temperature, and the adsorption capacity of methylene blue was also decreased. The CSn after adsorption of methylene blue were directly pyrolyzed and its electrical conductivity was also significantly improved. The conducting material not only solved the dilemma of desorption waste liquid treatment but also achieved the dual application of the materials. Therefore, CSn is considered to be a green and sustainable carbon material.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Adsorption Properties of Green Sustainable Biomass Carbon Microspheres

Hao

Zhang

Wang

et al. 2022

Ind. Eng. Chem. Res.

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“…This is mainly due to the low doped N content, confirming that higher polar nitrogen doping is the key factor for improving CO 2 /N 2 selectivity. The CO 2 /N 2 selectivity of NPC-600-4 is high up to 36.6, surpassing a large number of N-doped porous carbons under identical measurement conditions ( Table 4 ) [ 17 , 18 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 ]. The high CO 2 /N 2 adsorption selectivity and large CO 2 uptakes under ambient conditions can be attributed to the ultramicroporosity and abundant doped N species.…”

Section: Resultsmentioning

confidence: 99%

One-Pot Synthesis of Rubber Seed Shell-Derived N-Doped Ultramicroporous Carbons for Efficient CO2 Adsorption

2022

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In this work, a series of novel rubber seed shell-derived N-doped ultramicroporous carbons (NPCs) were prepared by one-step high-temperature activation (500–1000 °C), using melamine as the nitrogen source and KOH as the activator. The effects of the melamine dosage and the activation temperatures on the surface chemical properties (doped N contents and N species), textural properties (surface area, pore structure, and microporosity), CO2 adsorption capacities, and CO2/N2 selectivity were thoroughly investigated and characterized. These as-prepared NPCs demonstrate controllable BET surface areas (398–2163 m2/g), ultramicroporosity, and doped nitrogen contents (0.82–7.52 wt%). It was found that the ultramicroporosity and the doped nitrogens significantly affected the CO2 adsorption and the separation performance at low pressure. Among the NPCs, highly microporous NPC-600-4 demonstrates the largest CO2 adsorption capacity of 5.81 mmol/g (273 K, 1.0 bar) and 3.82 mmol/g (298 K, 1.0 bar), as well as a high CO2/N2 selectivity of 36.6, surpassing a lot of reported biomass-based porous carbons. In addition, NPC-600-4 also shows excellent thermal stability and recycle performance, indicating the competitive application potential in practical CO2 capture. This work also presents a facile one-pot synthesis method to prepare high-performance biomass-based NPCs.

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“…Guo et al 236 successfully prepared N, S, O co-doped porous carbon by using sulfur-containing waste liquid (SCWL) as modifier. The CO 2 adsorption capacity of SCWL-modified porous carbon increased from 4.34/3.34 mmol g −1 to 5.61/3.82 mmol g −1 at 25 °C/0 °C and 1 bar.…”

Section: Co2 Capture and Conversionmentioning

confidence: 99%

Liquefiable biomass-derived porous carbons and their applications in CO₂capture and conversion

Jin

Gan

et al. 2022

Green Chem.

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A cost-effective synthesis of heteroatom-doped porous carbon by sulfur-containing waste liquid treatment: As a promising adsorbent for CO2 capture

Cited by 35 publications

References 59 publications

Preparation and Adsorption Properties of Green Sustainable Biomass Carbon Microspheres

Preparation and Adsorption Properties of Green Sustainable Biomass Carbon Microspheres

One-Pot Synthesis of Rubber Seed Shell-Derived N-Doped Ultramicroporous Carbons for Efficient CO2 Adsorption

Liquefiable biomass-derived porous carbons and their applications in CO₂capture and conversion

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A cost-effective synthesis of heteroatom-doped porous carbon by sulfur-containing waste liquid treatment: As a promising adsorbent for CO2 capture

Cited by 35 publications

References 59 publications

Preparation and Adsorption Properties of Green Sustainable Biomass Carbon Microspheres

Preparation and Adsorption Properties of Green Sustainable Biomass Carbon Microspheres

One-Pot Synthesis of Rubber Seed Shell-Derived N-Doped Ultramicroporous Carbons for Efficient CO2 Adsorption

Liquefiable biomass-derived porous carbons and their applications in CO2capture and conversion

Contact Info

Product

Resources

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Liquefiable biomass-derived porous carbons and their applications in CO₂capture and conversion