{"id":27692,"date":"2020-03-15T17:08:00","date_gmt":"2020-03-15T10:08:00","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=27692"},"modified":"2021-11-22T10:07:38","modified_gmt":"2021-11-22T03:07:38","slug":"nghien-cuu-tong-hop-graphene-va-tio2-bang-phuong-phap-dien-hoa-plasma-va-dinh-huong-ung-dung-trong-xu-ly-moi-truong","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/nghien-cuu-tong-hop-graphene-va-tio2-bang-phuong-phap-dien-hoa-plasma-va-dinh-huong-ung-dung-trong-xu-ly-moi-truong\/","title":{"rendered":"Nghi\u00ean c\u1ee9u t\u1ed5ng h\u1ee3p graphene v\u00e0 TiO2 b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec7n h\u00f3a plasma v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng \u1ee9ng d\u1ee5ng trong x\u1eed l\u00fd m\u00f4i tr\u01b0\u1eddng"},"content":{"rendered":"\n

Nh\u1eb1m k\u1ebft h\u1ee3p gi\u1eefa ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec7n h\u00f3a truy\u1ec1n th\u1ed1ng v\u00e0 plasma \u0111i\u1ec7n ly th\u00e0nh m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng nh\u1ea5t theo m\u1ed9t c\u00e1ch th\u1ee9c \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c \u0111\u1ec3 ch\u1ebf t\u1ea1o nhanh c\u1ea3 graphene v\u00e0 TiO2 theo c\u00e1c y\u00eau c\u1ea7u ri\u00eang v\u1edbi hi\u1ec7u su\u1ea5t cao.<\/p>\n\n\n\n

\"\"\/<\/figure><\/div>\n\n\n\n

C\u1ee5 th\u1ec3 l\u00e0, t\u00ecm ra quy tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n c\u00e1c ph\u1ea3n \u1ee9ng \u0111i\u1ec7n h\u00f3a x\u1ea3y ra tr\u00ean b\u1ec1 m\u1eb7t \u0111i\u1ec7n c\u1ef1c theo m\u1ed9t m\u1ee5c ti\u00eau x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc \u0111\u1ec3 ch\u1ebf t\u1ea1o ra graphene ho\u1eb7c TiO2 t\u00f9y theo c\u00e1c m\u1ee5c \u0111\u00edch ri\u00eang, nh\u00f3m nghi\u00ean c\u1ee9u do \u00f4ng \u0110\u1eb7ng V\u0103n Th\u00e0nh<\/em><\/strong>, Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Y D\u01b0\u1ee3c \u0111\u1ee9ng \u0111\u1ea7u \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u \u0111\u1ec1 t\u00e0i: \u201cNghi\u00ean c\u1ee9u t\u1ed5ng h\u1ee3p graphene v\u00e0 TiO2 b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec7n h\u00f3a plasma v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng \u1ee9ng d\u1ee5ng trong x\u1eed l\u00fd m\u00f4i tr\u01b0\u1eddng<\/em><\/strong>\u201d. S\u1ef1 ph\u1ee5 thu\u1ed9c c\u1ee7a t\u00ednh ch\u1ea5t \u0111i\u1ec7n, \u0111i\u1ec7n h\u00f3a, x\u00fac t\u00e1c quang v\u00e0 c\u1ea5u tr\u00fac v\u00e0o c\u00e1c th\u00f4ng s\u1ed1 ch\u1ebf t\u1ea1o s\u1ebd \u0111\u01b0\u1ee3c nh\u00f3m nghi\u00ean c\u1ee9u xem x\u00e9t m\u1ed9t c\u00e1ch chi ti\u1ebft v\u00e0 h\u1ec7 th\u1ed1ng trong \u0111\u1ec1 t\u00e0i n\u00e0y. M\u1ed9t m\u1ee5c ti\u00eau quan tr\u1ecdng kh\u00e1c c\u1ee7a \u0111\u1ec1 t\u00e0i l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u \u0111\u1ecbnh h\u01b0\u1edbng \u1ee9ng d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c v\u00e0o x\u1eed l\u00fd m\u00f4i tr\u01b0\u1eddng v\u00e0 m\u1edf r\u1ed9ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cho vi\u1ec7c ch\u1ebf t\u1ea1o v\u1eadt li\u1ec7u graphene t\u1eeb c\u00e1c \u0111i\u1ec7n c\u1ef1c graphite \u0111\u00e3 s\u1eed d\u1ee5ng trong c\u00e1c lo\u1ea1i pin kh\u00e1c nhau.<\/p>\n\n\n\n

C\u00e1c n\u1ed9i dung nghi\u00ean c\u1ee9u bao g\u1ed3m:<\/em><\/p>\n\n\n\n

– Nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1o c\u00e1c v\u1eadt li\u1ec7u graphene v\u00e0 TiO2 b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec7n h\u00f3a plasma.<\/p>\n\n\n\n

– Nghi\u00ean c\u1ee9u \u0111\u1eb7c tr\u01b0ng c\u1ea5u tr\u00fac, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, h\u00ecnh th\u00e1i b\u1ec1 m\u1eb7t, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang… c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

– Nghi\u00ean c\u1ee9u kh\u1ea3 n\u0103ng x\u1eed l\u00fd m\u00e0u v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng x\u1eed l\u00fd m\u00e0u c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u graphene v\u00e0 TiO2 \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 ph\u1ea9m nhu\u1ed9m nh\u01b0: Reactive yellow 145, thu\u1ed1c nhu\u1ed9m xanh ho\u1ea1t t\u00ednh (RB19), Basic violet 4 (BV4) theo ph\u01b0\u01a1ng ph\u00e1p h\u1ea5p ph\u1ee5.<\/p>\n\n\n\n

– \u0110o COD, TOC trong m\u1ed9t s\u1ed1 ph\u1ea9m nhu\u1ed9m: Reactive yellow 145, Thu\u1ed1c nhu\u1ed9m xanh ho\u1ea1t t\u00ednh (RB19), Basic violet 4 (BV4)… tr\u01b0\u1edbc khi h\u1ea5p ph\u1ee5 v\u00e0 sau khi h\u1ea5p ph\u1ee5 b\u1eb1ng v\u1eadt li\u1ec7u graphene v\u00e0 TiO2 \u0111\u00e3 ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

– M\u1edf r\u1ed9ng ph\u01b0\u01a1ng ph\u00e1p cho vi\u1ec7c ch\u1ebf t\u1ea1o graphene t\u1eeb c\u00e1c \u0111i\u1ec7n c\u1ef1c graphite \u0111\u00e3 s\u1eed d\u1ee5ng trong c\u00e1c lo\u1ea1i pin kh\u00e1c nhau.<\/p>\n\n\n\n

– X\u00e2y d\u1ef1ng lu\u1eadn c\u1ee9 k\u0129 thu\u1eadt v\u00e0 kinh t\u1ebf cho vi\u1ec7c s\u1ea3n xu\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn graphene v\u00e0 TiO2.<\/p>\n\n\n\n

C\u00f9ng v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c nghi\u1ec7m, bao g\u1ed3m c\u1ea3 vi\u1ec7c ch\u1ebf t\u1ea1o m\u1eabu v\u00e0 ph\u00e2n t\u00edch k\u1ebft qu\u1ea3, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u1ec1 t\u00e0i g\u1ed3m:<\/p>\n\n\n\n

Thay \u0111\u1ed5i c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1ec3 ch\u1ebf t\u1ea1o c\u00e1c m\u1eabu graphene v\u00e0 TiO2. Nghi\u00ean c\u1ee9u \u0111\u1eb7c tr\u01b0ng c\u1ee7a v\u1eadt li\u1ec7u nh\u1eadn \u0111\u01b0\u1ee3c t\u01b0\u01a1ng \u1ee9ng \u0111\u1ec3 t\u00ecm ra c\u00e1ch th\u1ee9c \u0111i\u1ec1u khi\u1ec3n c\u00e1c ph\u1ea3n \u1ee9ng \u0111i\u1ec7n h\u00f3a v\u00e0 t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh tr\u00ecnh ch\u1ebf t\u1ea1o m\u1eabu.<\/p>\n\n\n\n

H\u00ecnh th\u00e1i h\u1ecdc, c\u1ea5u tr\u00fac c\u1ee7a v\u1eadt li\u1ec7u ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u th\u00f4ng qua c\u00e1c ph\u00e9p \u0111o nh\u01b0: Nhi\u1ec5u x\u1ea1 tia X (XRD), ph\u1ed5 t\u00e1n x\u1ea1 Raman, hi\u1ec3n vi \u0111i\u1ec7n t\u1eed truy\u1ec1n qua (TEM), hi\u1ec3n vi \u0111i\u1ec7n t\u1eed qu\u00e9t (SEM), hi\u1ec3n vi l\u1ef1c nguy\u00ean t\u1eed (AFM), t\u00e1n s\u1eafc n\u0103ng l\u01b0\u1ee3ng tia X (EDX).<\/p>\n\n\n\n

T\u00ednh ch\u1ea5t quang x\u00fac t\u00e1c s\u1ebd \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh th\u00f4ng qua ph\u1ea3n \u1ee9ng quang x\u00fac t\u00e1c v\u00e0 ph\u00e9p \u0111o ph\u1ed5 h\u1ea5p th\u1ee5. <\/p>\n\n\n\n

T\u00ednh ch\u1ea5t \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n h\u00f3a c\u1ee7a m\u1eabu \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u b\u1eb1ng ph\u00e9p \u0111o \u0111i\u1ec7n tr\u1edf 4 m\u0169i d\u00f2, ph\u00e9p \u0111o \u0111i\u1ec7n h\u00f3a v\u00e0 ph\u00e9p \u0111o ph\u1ed5 t\u1ed5ng tr\u1edf.<\/p>\n\n\n\n

T\u00ednh ch\u1ea5t quang \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u qua c\u00e1c ph\u00e9p \u0111o: t\u00e1n x\u1ea1 Raman, ph\u1ed5 h\u1ea5p th\u1ee5, FTIR, truy\u1ec1n qua v\u00e0 ph\u1ea3n.<\/p>\n\n\n\n

Sau 36 th\u00e1ng tri\u1ec3n khai, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u1ec1 t\u00e0i \u0111\u00e3 thu \u0111\u01b0\u1ee3c c\u00e1c k\u1ebft qu\u1ea3 nh\u01b0 sau: \u0110\u00e3 t\u00ecm ra ph\u01b0\u01a1ng ph\u00e1p m\u1edbi ch\u1ebf t\u1ea1o nhanh graphene s\u1eed d\u1ee5ng \u0111i\u1ec7n c\u1ef1c catot b\u1eb1ng thanh graphite \u0111\u1ec3 t\u1ea1o plasma v\u00e0 m\u1ed9t thanh graphite l\u00e0m anot cho ch\u1ebf t\u1ea1o cho ph\u1ea3n \u1ee9ng b\u00f3c t\u00e1ch graphite d\u1ea1ng kh\u1ed1i th\u00e0nh c\u00e1c l\u1edbp m\u1ecfng graphene d\u01b0\u1edbi s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a s\u00f3ng si\u00eau \u00e2m trong dung d\u1ecbch ch\u1ea5t \u0111i\u1ec7n ly basic v\u1edbi th\u1eddi gian ph\u1ea3n \u1ee9ng ng\u1eafn ngay t\u1ea1i \u0111i\u1ec1u ki\u1ec7n \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n. C\u00e1c k\u1ebft qu\u1ea3 ch\u1ee5p \u1ea3nh hi\u1ec3n vi \u0111i\u1ec7n t\u1eed hi\u1ec3n vi \u0111i\u1ec7n t\u1eed truy\u1ec1n qua (TEM) v\u00e0 k\u00ednh hi\u1ec3n vi l\u1ef1c nguy\u00ean t\u1eed (AFM) cho th\u1ea5y v\u1eadt li\u1ec7u graphene ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c c\u00f3 k\u00edch th\u01b0\u1edbc t\u1eeb 2 – 6\u00b5m, v\u1edbi chi\u1ec1u d\u00e0y kho\u1ea3ng 2,5 nm t\u01b0\u01a1ng \u1ee9ng v\u1edbi kho\u1ea3ng 7 l\u1edbp graphene. V\u1eadt li\u1ec7u graphene nh\u1eadn \u0111\u01b0\u1ee3c sau \u0111\u00f3 \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi TiO2 th\u00e0nh l\u1edbp m\u00e0ng c\u1ea5u tr\u00fac x\u1ed1p graphene\/ TiO2 \u1ee9ng d\u1ee5ng cho ph\u1ea3n \u1ee9ng quang \u0111i\u1ec7n h\u00f3a. C\u00e1c k\u1ebft qu\u1ea3 khoa h\u1ecdc c\u1ee7a \u0111\u1ec1 t\u00e0i l\u00e0 m\u1edbi th\u1ec3 hi\u1ec7n qua \u0111\u00e3 c\u00f4ng b\u1ed1 th\u00e0nh c\u00f4ng tr\u00ean 2 t\u1ea1p ch\u00ed ISI uy t\u00edn Ultrasonics Sonochemistry v\u00e0 Materials Letters. C\u00e1c v\u1eadt li\u1ec7u nh\u1eadn \u0111\u01b0\u1ee3c c\u00f3 gi\u00e1 tr\u1ecb th\u1ef1c ti\u1ec5n v\u00e0 c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng cho c\u00e1c \u1ee9ng d\u1ee5ng cho c\u00e1c nghi\u00ean c\u1ee9u sau.<\/p>\n\n\n\n

K\u1ebft qu\u1ea3 \u0111\u1ec1 t\u00e0i \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 qu\u1ed1c t\u1ebf tr\u00ean t\u1ea1p ch\u00ed Journal of Electronic Materials<\/em> v\u00e0 Advances in Natural Sciences: Nanoscience and Nanotechnolog<\/em>.<\/p>\n\n\n\n

C\u00f3 th\u1ec3 t\u00ecm \u0111\u1ecdc to\u00e0n v\u0103n B\u00e1o c\u00e1o k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u1ee7a \u0110\u1ec1 t\u00e0i (M\u00e3 s\u1ed1 14819\/2018) t\u1ea1i C\u1ee5c Th\u00f4ng tin Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 Qu\u1ed1c gia.<\/em><\/p>\n\n\n\n

P.T.T (NASATI)<\/em><\/p>\n\n\n\n

ngu\u1ed3n: https:\/\/www.vista.gov.vn\/news\/khoa-hoc-ky-thuat-va-cong-nghe\/nghien-cuu-tong-hop-graphene-va-tio2-bang-phuong-phap-dien-hoa-plasma-va-dinh-huong-ung-dung-trong-xu-ly-moi-truong-331.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Nh\u1eb1m k\u1ebft h\u1ee3p gi\u1eefa ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec7n h\u00f3a truy\u1ec1n th\u1ed1ng v\u00e0 plasma \u0111i\u1ec7n ly th\u00e0nh m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng nh\u1ea5t theo m\u1ed9t c\u00e1ch th\u1ee9c \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c \u0111\u1ec3 ch\u1ebf t\u1ea1o nhanh c\u1ea3 graphene v\u00e0 TiO2 theo c\u00e1c y\u00eau c\u1ea7u ri\u00eang v\u1edbi hi\u1ec7u su\u1ea5t cao. C\u1ee5 th\u1ec3 l\u00e0, t\u00ecm ra quy tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n c\u00e1c ph\u1ea3n […]<\/p>\n","protected":false},"author":25,"featured_media":29617,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-27692","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/27692","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=27692"}],"version-history":[{"count":3,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/27692\/revisions"}],"predecessor-version":[{"id":30320,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/27692\/revisions\/30320"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/29617"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=27692"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=27692"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=27692"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}