{"id":28819,"date":"2019-07-31T21:35:00","date_gmt":"2019-07-31T14:35:00","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=28819"},"modified":"2021-10-03T22:03:11","modified_gmt":"2021-10-03T15:03:11","slug":"su-dung-chat-xuc-tac-tong-hop-va-song-sieu-am-de-loai-bo-cac-chat-o-nhiem-trong-nuo","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/su-dung-chat-xuc-tac-tong-hop-va-song-sieu-am-de-loai-bo-cac-chat-o-nhiem-trong-nuo\/","title":{"rendered":"S\u1eed d\u1ee5ng ch\u1ea5t x\u00fac t\u00e1c t\u1ed5ng h\u1ee3p v\u00e0 s\u00f3ng si\u00eau \u00e2m \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m trong n\u01b0\u1edb"},"content":{"rendered":"\n

C\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i Trung t\u00e2m Nghi\u00ean c\u1ee9u chu tr\u00ecnh n\u01b0\u1edbc thu\u1ed9c Vi\u1ec7n Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 H\u00e0n Qu\u1ed1c (KIST) \u0111\u00e3 ph\u00e1t tri\u1ec3n \u0111\u01b0\u1ee3c quy tr\u00ecnh x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i b\u1eb1ng s\u1ea3n ph\u1ea9m ph\u1ee5 n\u00f4ng nghi\u1ec7p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 lo\u1ea1i b\u1ecf hi\u1ec7u qu\u1ea3 c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m v\u00e0 ch\u1ea5t g\u00e2y r\u1ed1i lo\u1ea1n n\u1ed9i ti\u1ebft c\u00f3 trong m\u00f4i tr\u01b0\u1eddng, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 ch\u1ea5t g\u00e2y r\u1ed1i lo\u1ea1n n\u1ed9i ti\u1ebft.<\/p>\n\n\n\n

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

N\u01b0\u1edbc c\u1ed1ng v\u00e0 n\u01b0\u1edbc th\u1ea3i n\u00f3i chung \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1ea1i b\u1ea5t k\u1ef3 khu c\u00f4ng nghi\u1ec7p n\u00e0o, th\u01b0\u1eddng ch\u1ee9a kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn ch\u1ea5t \u00f4 nhi\u1ec5m v\u00e0 ch\u1ea5t g\u00e2y r\u1ed1i lo\u1ea1n n\u1ed9i ti\u1ebft. V\u00ec ch\u1ea5t g\u00e2y r\u1ed1i lo\u1ea1n n\u1ed9i ti\u1ebft kh\u00f4ng d\u1ec5 b\u1ecb ph\u00e2n t\u00e1ch, n\u00ean ch\u00fang s\u1ebd t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c kh\u00f4ng ch\u1ec9 \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng m\u00e0 c\u1ea3 c\u01a1 th\u1ec3 con ng\u01b0\u1eddi. \u0110\u1ec3 ng\u0103n ch\u1eb7n t\u00ecnh tr\u1ea1ng n\u00e0y, c\u1ea7n c\u00f3 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p lo\u1ea1i b\u1ecf ch\u00fang.<\/p>\n\n\n\n

Hi\u1ec7u su\u1ea5t c\u1ee7a ch\u1ea5t x\u00fac t\u00e1c hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i, gi\u1ea3m \u0111\u00e1ng k\u1ec3 theo th\u1eddi gian. V\u00ec kh\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 cao trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd, n\u00ean b\u1ea5t l\u1ee3i l\u1edbn nh\u1ea5t c\u1ee7a quy tr\u00ecnh hi\u1ec7n nay l\u00e0 chi ph\u00ed cao. H\u01a1n n\u1eefa, nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n cho \u0111\u1ebfn nay, ch\u1ee7 y\u1ebfu t\u1eadp trung v\u00e0o ph\u00e1t tri\u1ec3n c\u00e1c ch\u1ea5t x\u00fac t\u00e1c \u0111\u01a1n ch\u1ea5t v\u00e0 t\u0103ng hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang. C\u00f3 \u00edt nghi\u00ean c\u1ee9u t\u1ea1o ra c\u00e1c ch\u1ea5t x\u00fac t\u00e1c nanocompozit th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf ch\u1ea5t g\u00e2y r\u1ed1i lo\u1ea1n n\u1ed9i ti\u1ebft kh\u1ecfi n\u01b0\u1edbc th\u1ea3i.<\/p>\n\n\n\n

Nh\u00f3m nghi\u00ean c\u1ee9u t\u1ea1i KIST, do TS. Jae-woo Choi v\u00e0 TS. Kyung-won Jung d\u1eabn \u0111\u1ea7u, \u0111\u00e3 s\u1eed d\u1ee5ng than sinh h\u1ecdc th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb \u200b\u200bc\u00e1c s\u1ea3n ph\u1ea9m ph\u1ee5 c\u1ee7a ng\u00e0nh n\u00f4ng nghi\u1ec7p \u0111\u1ec3 ph\u00e1t tri\u1ec3n quy tr\u00ecnh x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i gi\u00fap lo\u1ea1i b\u1ecf hi\u1ec7u qu\u1ea3 c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m v\u00e0 ch\u1ea5t g\u00e2y r\u1ed1i lo\u1ea1n n\u1ed9i ti\u1ebft. Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 s\u1eed d\u1ee5ng tr\u1ea5u th\u1ea3i lo\u1ea1i trong qu\u00e1 tr\u00ecnh thu ho\u1ea1ch l\u00faa \u0111\u1ec3 s\u1ea3n xu\u1ea5t than sinh h\u1ecdc v\u1eeba th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u1eeba ti\u1ebft ki\u1ec7m. B\u1ec1 m\u1eb7t than sinh h\u1ecdc \u0111\u01b0\u1ee3c ph\u1ee7 mangan dioxit c\u00f3 k\u00edch th\u01b0\u1edbc nano \u0111\u1ec3 t\u1ea1o ra nanocompozit. Hi\u1ec7u qu\u1ea3 cao v\u00e0 chi ph\u00ed th\u1ea5p c\u1ee7a ch\u1ea5t x\u00fac t\u00e1c sinh h\u1ecdc nano-nanocompozit c\u00f3 \u0111\u01b0\u1ee3c l\u00e0 nh\u1edd k\u1ebft h\u1ee3p c\u00e1c l\u1ee3i th\u1ebf c\u1ee7a than sinh h\u1ecdc v\u00e0 mangan dioxit.<\/p>\n\n\n\n

Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p th\u1ee7y nhi\u1ec7t (qu\u00e1 tr\u00ecnh t\u1ed5ng h\u1ee3p kho\u00e1ng ch\u1ea5t s\u1eed d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t cao) khi t\u1ed5ng h\u1ee3p nanocompozit \u0111\u1ec3 t\u1ea1o ra ch\u1ea5t x\u00fac t\u00e1c ho\u1ea1t t\u00ednh cao, d\u1ec5 t\u00e1i t\u1ea1o v\u00e0 \u1ed5n \u0111\u1ecbnh. Vi\u1ec7c cung c\u1ea5p cho ch\u1ea5t x\u00fac t\u00e1c m\u1ed9t c\u1ea5u tr\u00fac ph\u00e2n t\u1ea7ng ba chi\u1ec1u \u0111\u00e3 mang l\u1ea1i hi\u1ec7u qu\u1ea3 cao cho qu\u00e1 tr\u00ecnh oxy h\u00f3a ti\u00ean ti\u1ebfn (AOP) do di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn.<\/p>\n\n\n\n

Khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n t\u01b0\u01a1ng t\u1ef1, ch\u1ea5t x\u00fac t\u00e1c hi\u1ec7n nay ch\u1ec9 c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf 80% Bisphenol A (BPA), ch\u1ea5t g\u00e2y r\u1ed1i lo\u1ea1n n\u1ed9i ti\u1ebft, trong khi ch\u1ea5t x\u00fac t\u00e1c m\u1edbi \u0111\u00e3 lo\u1ea1i b\u1ecf h\u01a1n 95% BPA trong v\u00f2ng ch\u01b0a \u0111\u1ea7y m\u1ed9t gi\u1edd. \u0110\u1eb7c bi\u1ec7t, khi k\u1ebft h\u1ee3p v\u1edbi s\u00f3ng si\u00eau \u00e2m t\u1ea7n s\u1ed1 20kHz, to\u00e0n b\u1ed9 d\u1ea5u v\u1ebft c\u1ee7a BPA \u0111\u00e3 \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n trong v\u00f2ng ch\u01b0a \u0111\u1ea7y 20 ph\u00fat. Ngay c\u1ea3 sau nhi\u1ec1u th\u1eed nghi\u1ec7m l\u1eb7p \u0111i l\u1eb7p l\u1ea1i, t\u1ef7 l\u1ec7 lo\u1ea1i b\u1ecf BPA v\u1eabn duy tr\u00ec \u1ed5n \u0111\u1ecbnh \u1edf m\u1ee9c kho\u1ea3ng 93%.<\/p>\n\n\n\n

TS. Kyung-won Jung, \u0111\u1ed3ng t\u00e1c gi\u1ea3 nghi\u00ean c\u1ee9u cho bi\u1ebft: “Ch\u1ea5t x\u00fac t\u00e1c \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n qua nghi\u00ean c\u1ee9u n\u00e0y s\u1eed d\u1ee5ng s\u1ea3n ph\u1ea9m ph\u1ee5 n\u00f4ng nghi\u1ec7p ph\u1ed5 bi\u1ebfn. Do \u0111\u00f3, ch\u00fang t\u00f4i hy v\u1ecdng nghi\u00ean c\u1ee9u b\u1ed5 sung v\u1ec1 c\u00e1c ch\u1ea5t thay th\u1ebf s\u1ebd d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c ch\u1ea5t x\u00fac t\u00e1c c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb nhi\u1ec1u lo\u1ea1i sinh kh\u1ed1i ch\u1ea5t th\u1ea3i h\u1eefu c\u01a1<\/em>“. Ngo\u00e0i ra, c\u00e1c t\u00e1c gi\u1ea3 c\u0169ng hy v\u1ecdng c\u00e1c nghi\u00ean c\u1ee9u trong t\u01b0\u01a1ng lai nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh v\u00e0 t\u0103ng t\u1ef7 l\u1ec7 lo\u1ea1i b\u1ecf ch\u1ea5t th\u1ea3i s\u1ebd cho ph\u00e9p ph\u00e1t tri\u1ec3n h\u1ec7 th\u1ed1ng kh\u1eed ch\u1ea5t g\u00e2y r\u1ed1i lo\u1ea1n n\u1ed9i ti\u1ebft v\u1eeba th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 chi ph\u00ed th\u1ea5p.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i Trung t\u00e2m Nghi\u00ean c\u1ee9u chu tr\u00ecnh n\u01b0\u1edbc thu\u1ed9c Vi\u1ec7n Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 H\u00e0n Qu\u1ed1c (KIST) \u0111\u00e3 ph\u00e1t tri\u1ec3n \u0111\u01b0\u1ee3c quy tr\u00ecnh x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i b\u1eb1ng s\u1ea3n ph\u1ea9m ph\u1ee5 n\u00f4ng nghi\u1ec7p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 lo\u1ea1i b\u1ecf hi\u1ec7u qu\u1ea3 c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m v\u00e0 ch\u1ea5t g\u00e2y r\u1ed1i lo\u1ea1n n\u1ed9i […]<\/p>\n","protected":false},"author":23,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-28819","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28819","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\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=28819"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28819\/revisions"}],"predecessor-version":[{"id":28834,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28819\/revisions\/28834"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=28819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=28819"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=28819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}