{"id":615869,"date":"2026-09-06T02:36:11","date_gmt":"2026-09-06T02:36:11","guid":{"rendered":"https:\/\/www.newsbeep.com\/ie\/615869\/"},"modified":"2026-09-06T02:36:11","modified_gmt":"2026-09-06T02:36:11","slug":"harnessing-the-structural-synergy-of-high-loading-cobalt-pyroborate-on-fibrous-silica-for-efficient-and-recyclable-advanced-oxidation-catalysis","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ie\/615869\/","title":{"rendered":"Harnessing the structural synergy of high loading cobalt pyroborate on fibrous silica for efficient and recyclable advanced oxidation catalysis"},"content":{"rendered":"<p>Sulfate radical (SO\u2084\u2022\u207b)-based advanced oxidation processes (SR-AOPs) offer high redox potential, long half-life, and superior selectivity for degrading persistent pollutants in wastewater. However, challenges remain in developing high-activity, recoverable, and reusable catalysts using non-noble metals. Here, we report a high-performance catalyst by immobilizing cobalt pyroborate (Co\u2082B\u2082O\u2085) onto dendritic fibrous silica (KCC-1), enabling efficient peroxymonosulfate (PMS) activation for degrading 4-nitrophenol (4-NP), tetracycline (TC), and sulfamethoxazole (SMX). The optimized Co\u2082B\u2082O\u2085@KCC-1 catalyst (Si\/Co = 6, B\/Co = 1.5) exhibited 1.6-, 1.9-, and 4.6-fold activity enhancements over Co\u2093O\u1d67@KCC-1, Co\u2082B\u2082O\u2085@MCM-41, and one-pot synthesized Co\u2013B@KCC-1, respectively, underscoring the synergistic benefits of the pyroborate phase and fibrous silica support. This enhanced performance stems from the synergistic integration of redox-active Co\u2082B\u2082O\u2085 with the high-surface-area, radially porous KCC-1 framework, which enables uniform dispersion, increased active site accessibility, and accelerated mass transport. Reactive oxygen species (ROS) trapping and EPR analyses confirmed the generation of surface-bound SO\u2084\u2022\u207b and singlet oxygen (\u00b9O\u2082), suggesting coexisting radical and non-radical oxidation pathways. XPS revealed dynamic Co\u00b2\u207a\/Co\u00b3\u207a redox transitions during PMS activation, while Bader charge analysis via DFT showed that borate ligands reduce Co electron density by ~0.16 |e| relative to Co\u2083O\u2084, facilitating redox cycling. The catalyst exhibited excellent reusability, structural integrity, and retained activity in natural organic matter-rich and river water matrices. This work establishes a foundational platform for high-loading cobalt borates immobilized on fibrous supports, offering a scalable and robust solution for the catalytic degradation of emerging contaminants via sulfate radical-based AOPs.<\/p>\n","protected":false},"excerpt":{"rendered":"Sulfate radical (SO\u2084\u2022\u207b)-based advanced oxidation processes (SR-AOPs) offer high redox potential, long half-life, and superior selectivity for degrading&hellip;\n","protected":false},"author":2,"featured_media":615870,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[1439,74044,1437,61,60,1436,9542,1438,82,100250,33194,261243,244788],"class_list":["post-615869","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-biomaterials","tag-energy-systems","tag-general","tag-ie","tag-ireland","tag-materials-science","tag-nanoparticles","tag-optical-and-electronic-materials","tag-science","tag-structural-materials","tag-structural-properties","tag-surface-and-interface-science","tag-thin-films"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/615869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=615869"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/615869\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/615870"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=615869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=615869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=615869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}