On June 15, 2021, Yang, Fan; Xu, Zibo; Huang, Yuandong; Tsang, Daniel C. W.; Ok, Yong Sik; Zhao, Ling; Qiu, Hao; Xu, Xiaoyun; Cao, Xinde published an article.Quality Control of 2,4-Di-tert-butylphenol The title of the article was Stabilization of dissolvable biochar by soil minerals: Release reduction and organo-mineral complexes formation. And the article contained the following:
Biochar has two existing forms in the moist soil environment, free dissolvable biochar (particle size < 0.45μm) and undissolvable particles (particle size > 0.45μm). The release and decomposition of dissolvable biochar from bulk biochar particles is a primary C loss pathway in biochar-amended soils, which would be reduced by their interactions with soil minerals. Most previous studies focused on the effect of feedstock types and pyrolysis conditions on dissolvable biochar stability, while few studies researched the interaction between dissolvable biochar and soil components, for instance the soil minerals, and its effect on the stability of dissolvable biochar. In this study, bentonite and goethite were selected as model soil minerals because of their differences in structure and surface types: neg. charged 2:1 type phyllosilicate (bentonite) and pos. charged crystalline mineral (goethite). Dry-wet cycling was conducted to determine the effect of these two minerals on the release of dissolvable biochar from walnut shell-derived biochar particles. The stability of dissolvable biochar was measured by chem. oxidation and biodegradation Both soil minerals reduced the release of dissolvable biochar by over 34% with the presence of Ca2+. Mechanisms of “Ca2+ bridging”, “ligand exchange” and “van der Waals attraction” contributed to the formation of dissolvable biochar-bentonite complexes, and Ca2+ promoted dissolvable biochar inserting into bentonite interlayer space, expanding D-spacing from 1.25 nm to 1.55 nm. However, “Ca2+ bridging” barely formed on goethite because of charge repulsion, indicating that the dissolvable biochar was bound with goethite mainly by “van der Waals attraction” and “ligand exchange”. Due to organo-mineral complexes formation, the chem. oxidation extent of dissolvable biochar was reduced by 22.8-36.5%, and the biodegradation extent was reduced by 72.7-85.0%, since the soil minerals are more effective to prevent the dissolvable biochar from being biodegraded. This study proved soil minerals and Ca 2+ were beneficial for enhancing biochar stability, these observations assisted in assessing the biochar ability for long-term carbon sequestration. The experimental process involved the reaction of 2,4-Di-tert-butylphenol(cas: 96-76-4).Quality Control of 2,4-Di-tert-butylphenol
The Article related to biochar soil organo mineral complex reduction stabilization, bentonite, biochar stability, ca(2+) bridging, goethite, intercalated sorption, Waste Treatment and Disposal: Chemical Treatment Of Aqueous Wastes and other aspects.Quality Control of 2,4-Di-tert-butylphenol
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