Biochar: Production, properties and emerging role as a support for enzyme immobilization

Pandey, Deepshikha; Daverey, Achlesh; Arunachalam, A.

doi:10.1016/j.jclepro.2020.120267

Cited by 233 publications

(96 citation statements)

References 95 publications

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“…Owing to its unique surface properties, biochar displays exceptional efficiency in removing pollutants like herbicides, dyes, pesticides, antibiotics, and heavy metals and plays an important role in mitigating global climate change (Oliveira et al 2017). Biochar can also act as a supercapacitor (Rui et al 2020), reinforcement in rubber, and asphalt flow modifier in the removal of phosphate, as well as help in enzyme immobilization (Pandey et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Biochar amendments and its impact on soil biota for sustainable agriculture

Pathy

Ray

Balasubramanian

2020

Biochar

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Beneficial microbes in soil biota are known to enhance plant growth by stimulating the nutrient supply and by devising certain mechanisms to cope up with the biotic (diseases) or abiotic (salinity, drought, and pollution) stresses. Owing to their effectiveness and sustainability concerns, the application of microbes in the agricultural sector has seen a positive surge recently. Biochar has been commended as an exemplary carrier material for beneficial microbes in the soil ecosystem. Biochar is generally produced from the waste biomasses, which not only resolve the management crisis of agricultural wastes but also render many benefits such as enhancement of soil properties, alteration of nutritional dynamics, removal of pollutants, and in the stimulation of beneficial microbial diversity in soil. The strategic application of biochar in agricultural land could help provide agronomic, economic, and environmental benefits. Since certain risks are associated with the application of biochar, attention needs to be paid while preferring for soil amendments. This present review focused on highlighting the role of microbes in plant growth. The influence of biochar on soil biota along with its detailed mechanisms was discussed further to delineate the scope of biochar in soil amendments. Further, the risks associated with the biochar amendments and the future perspectives in this research arena were highlighted.

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Section: Introductionmentioning

confidence: 99%

Biochar amendments and its impact on soil biota for sustainable agriculture

Pathy

Ray

Balasubramanian

2020

Biochar

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“…Biochar is a carbonaceous solid and recalcitrant material derived from the pyrolysis of waste biomass [ 33 ]. It has been engineered using various physical and chemical activation methods to alter its structural and physicochemical properties.…”

Section: Discussion: Novel Support Technologiesmentioning

confidence: 99%

Recent Trends in Enzyme Immobilization—Concepts for Expanding the Biocatalysis Toolbox

2021

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Enzymes have been exploited by humans for thousands of years in brewing and baking, but it is only recently that biocatalysis has become a mainstream technology for synthesis. Today, enzymes are used extensively in the manufacturing of pharmaceuticals, food, fine chemicals, flavors, fragrances and other products. Enzyme immobilization technology has also developed in parallel as a means of increasing enzyme performance and reducing process costs. The aim of this review is to present and discuss some of the more recent promising technical developments in enzyme immobilization, including the supports used, methods of fabrication, and their application in synthesis. The review highlights new support technologies such as the use of well-established polysaccharides in novel ways, the use of magnetic particles, DNA, renewable materials and hybrid organic–inorganic supports. The review also addresses how immobilization is being integrated into developing biocatalytic technology, for example in flow biocatalysis, the use of 3D printing and multi-enzymatic cascade reactions.

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“…Then, mixtures were filtered under pressure through a glass microfiber filter Whatman GF/C. These data were processed by Equations ( 15)- (18) and relationships (19) and (20). To describe the dependence of the solute amount on its equilibrium concentration, Freundlich adsorption isotherm was used (21).…”

Section: Batch Sorption Studymentioning

confidence: 99%

“…However, most of the traditionally produced have limited ability to sorb anionic species. Recently a new concept, engineered biochar has gained interest, in which engineered biochar is prepared by biochar surface impregnation with montmorillonite or other clay minerals [ 3 , 17 , 18 , 19 , 20 ]. Therefore, technetium in the most environmentally stable form—pertechnetate is sorbed, while others, mostly metals flow through this material if pH is smaller than approx.…”

Section: Introductionmentioning

confidence: 99%

“…2–3. This is particularly advantageous for large sample volumes circulating through a column packed with these kinds of materials [ 1 , 20 ]. Additionally, application of engineered biochar as a low cost and more environmentally friendly method in environmental applications compared to conventional technologies [such as precipitation, filtration or coagulation represent a future step firstly, in assessment and recycling of waste materials in 21st century, secondly for technetium separation application [ 2 , 3 , 17 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Surface Complexation Models of Pertechnetate on Biochar/Montmorillonite Composite—Batch and Dynamic Sorption Study

et al. 2020

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The study summarizes the results of monitoring the properties of two types of sorbents, BC1 (biochar sample 1) and BC2a (biochar sample 2), prepared by pyrolysis of bamboo biomass (BC1) and as its composite with montmorillonite K10 (BC2a). The main goal was to study their applicability to the Tc (VII) separation from liquid wastes, using NH4ReO4 as a carrier. The research was focused on determining the sorbents surface properties (by XRF (X-ray fluorescence) method and potentiometric titration in order to determine the properties of surface groups—Chemical Equilibrium Model (CEM) and Ion Exchange Model (IExM) models were applied here). As well as monitoring Tc (VII) (+Re(VII)) sorption, especially to determine equilibrium isotherm, the influence of pH and kinetics. The subject of research was also the dynamics of sorption, including its mathematical–physical modeling. Both sorbents have good properties against Tc (VII), however BC2a, due to the presence of montmorillonite, is more advantageous in this respect. It has a higher sorption capacity and faster kinetic investigation. An important finding is that the optimal pH is 2–3, which is related not only to the protonation of surface groups (they have a positive charge), but also to the negative form of the existence of Tc (VII) and Re (VII): TcO4− and ReO4−.

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Biochar: Production, properties and emerging role as a support for enzyme immobilization

Cited by 233 publications

References 95 publications

Biochar amendments and its impact on soil biota for sustainable agriculture

Biochar amendments and its impact on soil biota for sustainable agriculture

Recent Trends in Enzyme Immobilization—Concepts for Expanding the Biocatalysis Toolbox

Surface Complexation Models of Pertechnetate on Biochar/Montmorillonite Composite—Batch and Dynamic Sorption Study

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