Highly porous carbon nanoparticles from biowaste for wastewater treatment

To speed up the wastewater treatment under aerobic conditions and to optimize the processes of anaerobic wastewater treatment in digesters, immobilization technologies of microorganisms and enzymes on solid carriers are used. Ceramic carriers based on aluminosilicates and alumina are one of the promising inorganic biomass carriers. (Research purpose) To study the structure of porous ceramic biomass carriers for anaerobic processing of organic waste and evaluate the prospects for their use. (Materials and methods) The substrate for anaerobic digestion was a mixture of sediments of the primary and secondary sewage sumps of the Lyubertsy treatment facilities. K-65 cattle feed was used to ensure the constancy of the composition of organic substances in substrates as a cosubstrate. The authors used the method of low-temperature nitrogen adsorption of Bruner-Emmett-Teller to study the pore structure and specific surface of solid carriers on a specific surface analyzer Quntachrome Autosorb-1. (Results and discussion) The main characteristics (specific surface, volume of micro- and mesopores, predominant pore radius, water absorption and others) of chamotte foam lightweight and highly porous corundum ceramics were determined. It was revealed that ceramic materials with a developed surface and electrically conductive material provided an increase in biogas yield by 3.8-3.9 percent with an increase in methane content by an average of 5 percent. (Conclusions) The results of anaerobic digestion showed a positive effect of both a conductive carrier and highly porous ceramic materials on the process of anaerobic bioconversion of organic waste into biogas. It is advisable to expand experimental studies on the use of a conductive carrier with a developed surface based on highly porous ceramics.

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Spatially Confined Formation of Single Atoms in Highly Porous Carbon Nitride Nanoreactors

ACS Nano ◽

10.1021/acsnano.1c01872 ◽

2021 ◽

Author(s):

Yunpeng Zuo ◽

Tingting Li ◽

Ning Zhang ◽

Tianyun Jing ◽

Dewei Rao ◽

...

Keyword(s):

Porous Carbon ◽

Carbon Nitride ◽

Single Atoms ◽

Highly Porous

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Infiltrating sulfur into a highly porous carbon sphere as cathode material for lithium–sulfur batteries

Materials Research Bulletin ◽

10.1016/j.materresbull.2014.03.020 ◽

2014 ◽

Vol 58 ◽

pp. 204-207 ◽

Cited By ~ 15

Author(s):

Xiaohui Zhao ◽

Dul-Sun Kim ◽

Hyo-Jun Ahn ◽

Ki-Won Kim ◽

Kwon-Koo Cho ◽

...

Keyword(s):

Cathode Material ◽

Porous Carbon ◽

Carbon Sphere ◽

Lithium Sulfur Batteries ◽

Highly Porous ◽

Lithium Sulfur

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Hierarchical porous carbon nanoparticles derived from Helianthus annuus for glucose-sensing application

Emergent Materials ◽

10.1007/s42247-021-00185-7 ◽

2021 ◽

Author(s):

S. Siva Shalini ◽

R. Balamurugan ◽

A. Juliet Christina Mary ◽

A. Chandra Bose

Keyword(s):

Helianthus Annuus ◽

Porous Carbon ◽

Carbon Nanoparticles ◽

Glucose Sensing ◽

Hierarchical Porous Carbon ◽

Hierarchical Porous ◽

Sensing Application

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Highly Porous Carbon Materials from Biomass by Chemical and Carbonization Method: A Comparison Study

Journal of Chemistry ◽

10.1155/2013/620346 ◽

2013 ◽

Vol 2013 ◽

pp. 1-6 ◽

Cited By ~ 23

Author(s):

Wan Nor Roslam Wan Isahak ◽

Mohamed Wahab Mahamed Hisham ◽

Mohd Ambar Yarmo

Keyword(s):

Sulfuric Acid ◽

Thermal Behavior ◽

Surface Area ◽

Porous Carbon ◽

High Surface ◽

High Surface Area ◽

Empty Fruit Bunches ◽

Heating Treatment ◽

Concentrated Sulfuric Acid ◽

Highly Porous

Porous carbon obtained by dehydrating agent, concentrated sulfuric acid (H2SO4), from biomass containing high cellulose (filter paper (FP), bamboo waste, and empty fruit bunches (EFB)) shows very high surface area and better thermal behavior. At room temperature (without heating), treatment of H2SO4removed all the water molecules in the biomass and left the porous carbon without emitting any gaseous byproducts. Brunauer-Emmett-Teller (BET) surface analysis has shown that bamboo-based carbon has good properties with higher surface area (507.8 m2/g), micropore area (393.3 m2/g), and better thermal behavior (compared to FP and EFB) without any activation or treatment process. By acid treatment of biomass, it was shown that higher carbon composition obtained from FP (85.30%), bamboo (77.72%), and EFB (76.55%) is compared to carbon from carbonization process. Under optimal sulfuric acid (20 wt.%) uses, high carbon yield has been achieved for FP (47.85 wt.%), bamboo (62.4 wt.%), and EFB (55.4 wt.%).

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