{"id":2734,"date":"2026-10-09T11:40:44","date_gmt":"2026-10-09T04:40:44","guid":{"rendered":"https:\/\/iuc.qnu.edu.vn\/?p=2734"},"modified":"2026-10-09T11:40:44","modified_gmt":"2026-10-09T04:40:44","slug":"research-highlight-porous-iron-oxide-nanorods-for-selective-h%e2%82%82s-adsorption","status":"publish","type":"post","link":"https:\/\/iuc.qnu.edu.vn\/en\/research-highlight-porous-iron-oxide-nanorods-for-selective-h%e2%82%82s-adsorption\/","title":{"rendered":"Research Highlight: Porous Iron Oxide Nanorods for Selective H\u2082S Adsorption"},"content":{"rendered":"

\"\"<\/p>\n

As part of the IUC-QNU partnership, PhD researcher Thanh Trang Bui and colleagues have developed porous \u03b1-Fe\u2082O\u2083 (hematite) nanorods with promising potential for the selective adsorption of hydrogen sulfide (H\u2082S), a toxic gas relevant to environmental and industrial gas treatment. The study has been published in Surfaces and Interfaces (Q1, WoS)<\/em>.<\/span><\/p>\n

The nanorods were synthesized using a hydrothermal process followed by controlled calcination. By optimizing the synthesis conditions, the researchers obtained a porous \u03b1-Fe\u2082O\u2083 material after 9 hours of hydrothermal treatment and calcination at 300 \u00b0C. The optimized sample exhibited a specific surface area of 68.3 m\u00b2 g\u207b\u00b9 and an average pore diameter of 8.5 nm, providing favorable conditions for gas\u2013solid interactions.<\/span><\/p>\n

The most significant result was the material\u2019s strong selectivity toward H\u2082S. It achieved adsorption capacities of 39.8 mg g\u207b\u00b9 at 10% breakthrough and 46.7 mg g\u207b\u00b9 at 90% breakthrough. In comparison, adsorption of CH\u2084 was almost negligible (0.02 mg g\u207b\u00b9), while CO\u2082 adsorption was only 2.79 mg g\u207b\u00b9. These results demonstrate the promising potential of porous \u03b1-Fe\u2082O\u2083 nanorods as selective H\u2082S adsorbents.<\/span><\/p>\n

The enhanced performance is attributed to the porous nanorod structure, high surface area, and accessible Fe-based surface sites. XPS analysis further indicated the formation of sulfur-containing species after H\u2082S adsorption, supporting the interaction between H\u2082S and the material surface.<\/span><\/p>\n

Beyond the material performance, the study demonstrates how international collaboration within the IUC partnership can combine complementary expertise in material synthesis, characterization, and gas adsorption to address environmental challenges. The findings provide useful guidance for the future development of selective H\u2082S adsorbents for environmental protection and industrial gas treatment.<\/span><\/p>\n

Reference<\/strong><\/span><\/p>\n

Thanh Trang Bui, Jo De Vrieze, Ewald Janssens, Nguyen Minh Vuong, Property relationships in porous \u03b1-Fe2<\/sub>O3<\/sub> nanorods governing selective H2<\/sub>S adsorption<\/em>, Surfaces and Interfaces<\/strong>, Volume 99, Article 110762, 2026. DOI: 10.1016\/j.surfin.2026.110762.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

As part of the IUC-QNU partnership, PhD researcher Thanh Trang Bui and colleagues have developed porous \u03b1-Fe\u2082O\u2083 (hematite) nanorods with promising potential for the selective adsorption of hydrogen sulfide (H\u2082S), a toxic gas relevant to environmental and industrial gas treatment. The study has been published in Surfaces and Interfaces (Q1, WoS). The nanorods were synthesized […]<\/p>\n","protected":false},"author":3,"featured_media":2735,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[90],"tags":[],"class_list":["post-2734","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-publications"],"yoast_head":"\nResearch Highlight: Porous Iron Oxide Nanorods for Selective H\u2082S Adsorption - Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Quy Nh\u01a1n<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/iuc.qnu.edu.vn\/en\/research-highlight-porous-iron-oxide-nanorods-for-selective-h\u2082s-adsorption\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Research Highlight: Porous Iron Oxide Nanorods for Selective H\u2082S Adsorption - Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Quy Nh\u01a1n\" \/>\n<meta property=\"og:description\" content=\"As part of the IUC-QNU partnership, PhD researcher Thanh Trang Bui and colleagues have developed porous \u03b1-Fe\u2082O\u2083 (hematite) nanorods with promising potential for the selective adsorption of hydrogen sulfide (H\u2082S), a toxic gas relevant to environmental and industrial gas treatment. 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