{"id":10776,"date":"2026-04-08T15:15:28","date_gmt":"2026-04-08T15:15:28","guid":{"rendered":"https:\/\/nanonsg.com\/?p=10776"},"modified":"2026-04-08T15:15:30","modified_gmt":"2026-04-08T15:15:30","slug":"vat-lieu-xuc-tac-quang-tren-co-so-vat-lieu-nano-tio2-trong-phan-huy-chat-mau-huu-co","status":"publish","type":"post","link":"https:\/\/nanonsg.com\/index.php\/2026\/04\/08\/vat-lieu-xuc-tac-quang-tren-co-so-vat-lieu-nano-tio2-trong-phan-huy-chat-mau-huu-co\/","title":{"rendered":"V\u1eadt li\u1ec7u x\u00fac t\u00e1c quang tr\u00ean c\u01a1 s\u1edf v\u1eadt li\u1ec7u nano TiO2 trong ph\u00e2n h\u1ee7y ch\u1ea5t m\u00e0u h\u1eefu c\u01a1"},"content":{"rendered":"\n<p>Nh\u00f3m nghi\u00ean c\u1ee9u t\u1ea1i Vi\u1ec7n KHVL \u0111\u00e3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 x\u00fac t\u00e1c quang h\u00f3a c\u1ee7a c\u00e1c tinh th\u1ec3 nano TiO2 trong ph\u00e2n h\u1ee7y ch\u1ea5t m\u00e0u h\u1eefu c\u01a1 Rhodamine B v\u00e0 Rose Bengal<br><br>V\u1eadt li\u1ec7u x\u00fac t\u00e1c quang tr\u00ean c\u01a1 s\u1edf v\u1eadt li\u1ec7u nano TiO2&nbsp;\u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u m\u1ea1nh m\u1ebd v\u00e0 ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng nhi\u1ec1u trong gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng. Trong d\u1ef1 \u00e1n h\u1ee3p t\u00e1c qu\u1ed1c t\u1ebf \u201cV\u1eadt li\u1ec7u quang x\u00fac t\u00e1c \u0111\u1ec3 x\u1eed l\u00ed ch\u1ea5t th\u1ea3i h\u1eefu c\u01a1 c\u00f4ng nghi\u1ec7p kh\u00f3 ph\u00e2n h\u1ee7y (Photocatalytic Materials for the Destruction of Recalcitrant Organic Industrial Waste, PCATDES)\u201d thu\u1ed9c ch\u01b0\u01a1ng tr\u00ecnh V\u1eadt li\u1ec7u quang x\u00fac t\u00e1c \u0111\u1ec3 x\u1eed l\u00fd \u00f4 nhi\u1ec5m c\u1ee7a \u1ee6y ban Ch\u00e2u \u00c2u, nh\u00f3m nghi\u00ean c\u1ee9u c\u1ee7a GS. TS. Nguy\u1ec5n Quang Li\u00eam (ch\u1ee7 d\u1ef1 \u00e1n nh\u00e1nh ph\u00eda Vi\u1ec7t Nam) c\u0169ng \u0111\u00e3 l\u1ef1a ch\u1ecdn TiO2&nbsp;l\u00e0m \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u. Trong \u0111\u00f3, c\u00e1c nghi\u00ean c\u1ee9u t\u1ed5ng h\u1ee3p v\u1eadt li\u1ec7u nano TiO2&nbsp;\u0111\u01a1n pha brookite \u0111\u00e3 \u0111\u01b0\u1ee3c TS. Tr\u1ea7n Th\u1ecb Th\u01b0\u01a1ng Huy\u1ec1n (th\u00e0nh vi\u00ean nh\u00f3m) th\u1ef1c hi\u1ec7n tri\u1ec3n khai. C\u00e1c nghi\u00ean c\u1ee9u trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc li\u00ean quan \u0111\u1ebfn ch\u1ebf t\u1ea1o v\u00e0 khai th\u00e1c ti\u1ec1m n\u0103ng \u1ee9ng d\u1ee5ng c\u1ee7a pha tinh th\u1ec3 brookite c\u00f2n r\u1ea5t h\u1ea1n ch\u1ebf do g\u1eb7p kh\u00f3 kh\u0103n trong t\u1ed5ng h\u1ee3p v\u1eadt li\u1ec7u. Brookite lu\u00f4n c\u00f3 xu h\u01b0\u1edbng k\u1ebft tinh trong pha h\u1ed7n h\u1ee3p v\u1edbi anatase ho\u1eb7c rutile do v\u1eady l\u00e0m gi\u1ea3m ho\u1ea1t t\u00ednh, c\u0169ng nh\u01b0 thu h\u1eb9p s\u1ef1 quan t\u00e2m nghi\u00ean c\u1ee9u, ph\u1ea1m vi \u1ee9ng d\u1ee5ng c\u1ee7a pha tinh th\u1ec3 n\u00e0y. Vi\u1ec7c ch\u1ee7 \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c quy tr\u00ecnh ch\u1ebf t\u1ea1o c\u00e1c tinh th\u1ec3 nano n\u00e0y \u0111\u00e3 gi\u00fap nh\u00f3m nghi\u00ean c\u1ee9u ti\u1ebfp t\u1ee5c tri\u1ec3n khai c\u00e1c kh\u1ea3o s\u00e1t v\u1ec1 vai tr\u00f2 x\u00fac t\u00e1c quang trong c\u00e1c ph\u1ea3n \u1ee9ng ph\u00e2n h\u1ee7y\/lo\u1ea1i b\u1ecf h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 \u00f4 nhi\u1ec5m trong n\u01b0\u1edbc th\u1ea3i.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/ims.ac.vn\/pic\/News\/images\/9(3).jpeg\" alt=\"\"\/><\/figure>\n\n\n\n<p>H\u00ecnh 1: (Tr\u00e1i) \u1ea2nh HR-TEM v\u00e0 (ph\u1ea3i) c\u01a1 ch\u1ebf ph\u1ea3n \u1ee9ng quang x\u00fac t\u00e1c c\u1ee7a c\u00e1c nano tinh th\u1ec3 TiO2&nbsp;\u0111\u01a1n pha brookite<\/p>\n\n\n\n<p>&nbsp; &nbsp; &nbsp;V\u1eeba qua, TS. Huy\u1ec1n c\u00f9ng nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 c\u00f4ng b\u1ed1 c\u00f4ng tr\u00ecnh khoa h\u1ecdc \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 x\u00fac t\u00e1c quang h\u00f3a c\u1ee7a c\u00e1c tinh th\u1ec3 nano TiO2&nbsp;pha brookite trong ph\u00e2n h\u1ee7y ch\u1ea5t m\u00e0u h\u1eefu c\u01a1 rhodamine b v\u00e0 rose bengal. \u00d4 nhi\u1ec5m n\u01b0\u1edbc th\u1ea3i b\u1edfi ch\u1ea5t m\u00e0u\/thu\u1ed1c nhu\u1ed9m ng\u00e0y c\u00e0ng gia t\u0103ng theo t\u1ed1c \u0111\u1ed9 ph\u00e1t tri\u1ec3n kinh t\u1ebf v\u00e0 gia t\u0103ng d\u00e2n s\u1ed1. Ch\u1ea5t m\u00e0u \u0111\u1ea1t \u0111\u1ed9 b\u1ec1n m\u00e0u cao, d\u1ec5 tan trong n\u01b0\u1edbc nh\u01b0ng kh\u00f3 ph\u00e2n h\u1ee7y ho\u00e0n to\u00e0n d\u00f9 \u1edf n\u1ed3ng \u0111\u1ed9 r\u1ea5t th\u1ea5p (&lt; 1ppm). Ng\u01b0\u1ee1ng n\u1ed3ng \u0111\u1ed9 n\u00e0y c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ng\u1ed9 \u0111\u1ed9c cho c\u00e1c sinh v\u1eadt sinh s\u1ed1ng d\u01b0\u1edbi n\u01b0\u1edbc v\u00e0 con ng\u01b0\u1eddi th\u01b0\u1eddng xuy\u00ean ti\u1ebfp x\u00fac v\u1edbi c\u00e1c ngu\u1ed3n n\u01b0\u1edbc th\u1ea3i b\u1ecb \u00f4 nhi\u1ec5m. Trong c\u00f4ng b\u1ed1 n\u00e0y, c\u00e1c tinh th\u1ec3 nano brookite \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p th\u1ee7y nhi\u1ec7t c\u00f3 \u0111\u01b0\u1eddng k\u00ednh kho\u1ea3ng 10 nm; d\u1ea1ng t\u1ef1a c\u1ea7u (H\u00ecnh 1); \u0111\u1ed9 r\u1ed9ng v\u00f9ng c\u1ea5m ~ 3,25 eV; th\u1ec3 hi\u1ec7n hi\u1ec7u qu\u1ea3 x\u00fac t\u00e1c quang h\u00f3a cao, so s\u00e1nh \u0111\u01b0\u1ee3c v\u1edbi v\u1eadt li\u1ec7u TiO2&nbsp;th\u01b0\u01a1ng m\u1ea1i P25 v\u00e0 pha tinh th\u1ec3 anatase ch\u1ebf t\u1ea1o c\u00f9ng quy tr\u00ecnh (H\u00ecnh 2). C\u00e1c th\u00f4ng tin \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 x\u00fac t\u00e1c quang h\u00f3a d\u1ef1a v\u00e0o \u0111\u1ed9 suy gi\u1ea3m c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 d\u1ecbch b\u01b0\u1edbc s\u00f3ng c\u1ee7a \u0111\u1ec9nh h\u1ea5p th\u1ee5 c\u1ef1c \u0111\u1ea1i, \u0111\u1ed9 suy gi\u1ea3m h\u00e0m l\u01b0\u1ee3ng cacbon h\u1eefu c\u01a1 (TOC) c\u1ee7a c\u00e1c dung d\u1ecbch ch\u1ea5t m\u00e0u sau x\u1eed l\u00fd. H\u1ec7 ph\u1ea3n \u1ee9ng quang x\u00fac t\u00e1c s\u1eed d\u1ee5ng ngu\u1ed3n s\u00e1ng m\u00f4 ph\u1ecfng ph\u1ea7n \u00e1nh s\u00e1ng t\u1eed ngo\u1ea1i UV-A c\u1ee7a \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi \u0111\u1ebfn \u0111\u01b0\u1ee3c m\u1eb7t \u0111\u1ea5t, kh\u00f4ng b\u1ecb l\u1edbp ozon h\u1ea5p th\u1ee5 (v\u1ec1 c\u1ea3 ph\u00e2n b\u1ed1 n\u0103ng l\u01b0\u1ee3ng v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 ph\u00e1t x\u1ea1) v\u1edbi d\u1ea3i ph\u1ed5 li\u00ean t\u1ee5c trong kho\u1ea3ng 370-400 nm, h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t x\u00fac t\u00e1c th\u1ea5p (t\u1ef7 l\u1ec7 ch\u1ea5t x\u00fac t\u00e1c\/ch\u1ea5t m\u00e0u = 4).<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/ims.ac.vn\/pic\/News\/images\/10(1).jpeg\" alt=\"\"\/><\/figure>\n\n\n\n<p>H\u00ecnh 2: So s\u00e1nh hi\u1ec7u qu\u1ea3 quang x\u00fac t\u00e1c c\u1ee7a c\u00e1c nano tinh th\u1ec3 TiO2&nbsp;\u0111\u01a1n pha brookite v\u1edbi anatase v\u00e0 rutile trong ph\u00e2n h\u1ee7y ch\u1ea5t m\u00e0u (tr\u00e1i) rose bengal v\u00e0 (ph\u1ea3i) rhodamine B.<\/p>\n\n\n\n<p>&nbsp; &nbsp; K\u1ebft qu\u1ea3 n\u00e0y c\u1ee7a nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed qu\u1ed1c t\u1ebf uy t\u00edn Progress in Natural Science: Materials International (IF = 3,310).&nbsp;Tran Thi Thuong Huyen, Tran Thi Kim Chi, Hendrik Kosslickb and Nguyen Quang Liem, \u201cHighly active brookite TiO2-assisted photocatalytic degradation of dyes under the simulated solar-UVA radiation\u201d.<\/p>\n\n\n\n<p>Link:&nbsp;<a href=\"https:\/\/doi.org\/10.1016\/j.pnsc.2019.10.001\">https:\/\/doi.org\/10.1016\/j.pnsc.2019.10.001<\/a>&nbsp;&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nh\u00f3m nghi\u00ean c\u1ee9u t\u1ea1i Vi\u1ec7n KHVL \u0111\u00e3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 x\u00fac [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10777,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10776","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/posts\/10776","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/comments?post=10776"}],"version-history":[{"count":1,"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/posts\/10776\/revisions"}],"predecessor-version":[{"id":10778,"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/posts\/10776\/revisions\/10778"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/media\/10777"}],"wp:attachment":[{"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/media?parent=10776"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/categories?post=10776"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nanonsg.com\/index.php\/wp-json\/wp\/v2\/tags?post=10776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}