{"id":6853,"date":"2024-09-04T18:31:17","date_gmt":"2024-09-04T16:31:17","guid":{"rendered":"https:\/\/www.techscale.cz\/cs\/?p=6853"},"modified":"2024-09-04T18:33:32","modified_gmt":"2024-09-04T16:33:32","slug":"vedci-predstavili-vyzvy-a-prilezitosti-spojene-s-navrhy-uhlikovych-tecek-pro-fotokatalyzu","status":"publish","type":"post","link":"https:\/\/www.techscale.cz\/cs\/2024\/09\/04\/vedci-predstavili-vyzvy-a-prilezitosti-spojene-s-navrhy-uhlikovych-tecek-pro-fotokatalyzu\/","title":{"rendered":"V\u011bdci p\u0159edstavili v\u00fdzvy a p\u0159\u00edle\u017eitosti spojen\u00e9 s n\u00e1vrhy uhl\u00edkov\u00fdch te\u010dek pro fotokatal\u00fdzu"},"content":{"rendered":"[vc_row type=“in_container“ full_screen_row_position=“middle“ column_margin=“default“ column_direction=“default“ column_direction_tablet=“default“ column_direction_phone=“default“ scene_position=“center“ bottom_padding=“5%“ text_color=“dark“ text_align=“left“ row_border_radius=“none“ row_border_radius_applies=“bg“ overflow=“visible“ overlay_strength=“0.3″ gradient_direction=“left_to_right“ shape_divider_position=“bottom“ bg_image_animation=“none“ gradient_type=“default“ shape_type=““][vc_column column_padding=“no-extra-padding“ column_padding_tablet=“inherit“ column_padding_phone=“inherit“ column_padding_position=“all“ column_element_direction_desktop=“default“ column_element_spacing=“default“ desktop_text_alignment=“default“ tablet_text_alignment=“default“ phone_text_alignment=“default“ background_color_opacity=“1″ background_hover_color_opacity=“1″ column_backdrop_filter=“none“ column_shadow=“none“ column_border_radius=“none“ column_link_target=“_self“ column_position=“default“ gradient_direction=“left_to_right“ overlay_strength=“0.3″ width=“1\/1″ tablet_width_inherit=“default“ animation_type=“default“ bg_image_animation=“none“ border_type=“simple“ column_border_width=“none“ column_border_style=“solid“][split_line_heading animation_type=“line-reveal-by-space“ font_style=“h2″ line_reveal_by_space_text_effect=“default“ content_alignment=“default“ mobile_content_alignment=“inherit“ link_target=“_self“ text_content=“Dosavadn\u00ed poznatky o struktu\u0159e i vlastnostech uhl\u00edkov\u00fdch te\u010dek (CDs) a jejich vyu\u017eit\u00ed ve fotokatal\u00fdze shrnuje p\u0159ehledov\u00fd \u010dl\u00e1nek Designing carbon dots for enhanced photo-catalysis: Challenges and opportunities, kter\u00fd v t\u011bchto dnech publikoval \u010dasopis Chem. Auto\u0159i z CATRIN Univerzity Palack\u00e9ho, V\u0160B-TUO a Univerzity Friedricha Alexandera v n\u011bmeck\u00e9m Erlangenu v n\u011bm mimo jin\u00e9 identifikovali kl\u00ed\u010dov\u00e9 vlastnosti, kter\u00e9 je t\u0159eba zohlednit p\u0159i n\u00e1vrhu fotokatalyticky \u00fa\u010dinn\u00fdch uhl\u00edkov\u00fdch te\u010dek. Shrnuli tak\u00e9 experiment\u00e1ln\u00ed i teoretick\u00e9 metody vhodn\u00e9 pro studium struktur\u00e1ln\u011b slo\u017eit\u00fdch CDs.“ font_size=“2vw“ font_size_phone=“5vw“ font_line_height=“1.3″][\/split_line_heading][divider line_type=“No Line“ custom_height=“25″][vc_column_text]\n

<\/h3>\n

Uhl\u00edkov\u00e9 te\u010dky (CDs) jsou nanomateri\u00e1ly se specifick\u00fdmi optick\u00fdmi a elektronick\u00fdmi vlastnostmi, kter\u00e9 je \u010din\u00ed zaj\u00edmav\u00fdmi pro r\u016fzn\u00e9 aplikace v\u010detn\u011b l\u00e9ka\u0159sk\u00e9 diagnostiky, protin\u00e1dorov\u00e9 terapie, v\u00fdvoje LED diod a optoelekronick\u00fdch senzor\u016f. Auto\u0159i \u010dl\u00e1nku se zam\u011b\u0159ili na jejich p\u0159\u00ednosy v oblasti fotokatal\u00fdzy, kde ve v\u00fdzkumu do\u0161lo v posledn\u00edch letech k v\u00fdrazn\u00e9mu posunu a tyto ultramal\u00e9 nekovov\u00e9 nanomateri\u00e1ly dok\u00e1\u017e\u00ed konkurovat klasick\u00fd polovodi\u010dov\u00fdm materi\u00e1l\u016fm na b\u00e1zi kov\u016f.<\/p>\n

\u201eAplikace uhl\u00edkov\u00fdch te\u010dek se dnes posouvaj\u00ed a otev\u0159ely se nov\u00e9 mo\u017enosti pro jejich vyu\u017eit\u00ed zejm\u00e9na v oblasti fotokatalytick\u00e9 v\u00fdroby vod\u00edku, peroxidu vod\u00edku nebo fotoredukce oxidu uhli\u010dit\u00e9ho. Kl\u00ed\u010dov\u00fdm p\u0159\u00ednosem \u010dl\u00e1nku je hlub\u0161\u00ed porozum\u011bn\u00ed vztahu mezi strukturou a aktivitou uhl\u00edkov\u00fdch te\u010dek a v\u00fdvoj metod pro p\u0159esn\u00e9 p\u0159izp\u016fsoben\u00ed t\u011bchto struktur, co\u017e m\u016f\u017ee v\u00e9st k vy\u0161\u0161\u00ed efektivit\u011b p\u0159em\u011bny energie a udr\u017eiteln\u011bj\u0161\u00edm postup\u016fm jej\u00ed v\u00fdroby. \u010cl\u00e1nek tak\u00e9 zd\u016fraz\u0148uje v\u00fdznam pokro\u010dil\u00fdch experiment\u00e1ln\u00edch a teoretick\u00fdch metod, v\u010detn\u011b strojov\u00e9ho u\u010den\u00ed, pro dal\u0161\u00ed zlep\u0161en\u00ed fotokatalytick\u00fdch vlastnost\u00ed uhl\u00edkov\u00fdch te\u010dek a zaveden\u00ed cirkul\u00e1rn\u00edch syst\u00e9m\u016f, kter\u00e9 podporuj\u00ed udr\u017eitelnost a efektivitu recyklace materi\u00e1l\u016f,\u201c uvedl prvn\u00ed autor \u010dl\u00e1nku Luk\u00e1\u0161 Zdra\u017eil.<\/p>\n

\u010ce\u0161t\u00ed v\u011bdci na t\u00e9matu spolupracovali s kolegy z N\u011bmecka, v autorsk\u00e9m t\u00fdmu nechyb\u00ed ani p\u0159edn\u00ed sv\u011btov\u00fd odborn\u00edk Dirk M. Guldi, jen\u017e v sou\u010dasn\u00e9 dob\u011b p\u016fsob\u00ed jako profesor na Univerzit\u011b Friedricha Alexandera v Erlangenu a zam\u011b\u0159uje se zejm\u00e9na na v\u00fdvoj materi\u00e1l\u016f na b\u00e1zi uhl\u00edku, jako jsou fullereny a uhl\u00edkov\u00e9 te\u010dky, kter\u00e9 jsou vyu\u017eiteln\u00e9 pro p\u0159em\u011bnu slune\u010dn\u00edho z\u00e1\u0159en\u00ed na u\u017eite\u010dn\u00e9 formy energie. Pr\u00e1v\u011b v jeho t\u00fdmu Luk\u00e1\u0161 Zdra\u017eil absolvoval st\u00e1\u017e v r\u00e1mci postdoktor\u00e1ln\u00edho studia. \u201e\u010cl\u00e1nek je jedn\u00edm z v\u00fdstup\u016f nav\u00e1zan\u00e9 spolupr\u00e1ce. Jedn\u00e1 se o prvn\u00ed vla\u0161tovku, i nad\u00e1le spolupracujeme v oblasti experiment\u00e1ln\u00edho popisu optick\u00fdch vlastnost\u00ed uhl\u00edkov\u00fdch te\u010dek,\u201c uvedl Zdra\u017eil, kter\u00fd p\u016fsob\u00ed v Centru nanotechnologi\u00ed CEET na V\u0160B-TUO i CATRIN Univerzity Palack\u00e9ho.<\/p>\n

Podle v\u011bdc\u016f nicm\u00e9n\u011b z\u016fst\u00e1v\u00e1 pochopen\u00ed fotokatalytick\u00e9 aktivity uhl\u00edkov\u00fdch te\u010dek a v\u00fdvoj \u00fa\u010dinn\u00fdch a p\u0159esn\u011b zac\u00edlen\u00fdch struktur velkou v\u011bdeckou v\u00fdzvou. \u201eP\u0159ekon\u00e1n\u00ed t\u011bchto p\u0159ek\u00e1\u017eek je kl\u00ed\u010dov\u00e9 pro pokrok sm\u011brem k zelen\u00e9 a udr\u017eiteln\u00e9 v\u00fdrob\u011b energie s vyu\u017eit\u00edm materi\u00e1l\u016f, kter\u00e9 jsou levn\u00e9, \u0161k\u00e1lovateln\u00e9 a \u0161etrn\u00e9 k \u017eivotn\u00edmu prost\u0159ed\u00ed. Uhl\u00edkov\u00e9 te\u010dky dnes ji\u017e dok\u00e1\u017e\u00ed sv\u00fdmi optick\u00fdmi a elektronick\u00fdmi vlastnostmi konkurovat klasick\u00fdm polovodi\u010d\u016fm na b\u00e1zi kov\u016f, co\u017e je nesm\u00edrn\u011b zaj\u00edmav\u00e9 pro komer\u010dn\u00ed aplikace,\u201c doplnil jeden z koresponduj\u00edc\u00edch autor\u016f Radek Zbo\u0159il.<\/p>\n

V\u011bdci tak\u00e9 dlouhodob\u011b t\u011b\u017e\u00ed z propojen\u00ed experiment\u016f s teoretick\u00fdmi v\u00fdpo\u010dty. \u201eModelov\u00e1n\u00ed vlastnost\u00ed uhl\u00edkov\u00fdch te\u010dek p\u0159edstavuje velmi obt\u00ed\u017en\u00fd \u00fakol kv\u016fli jejich komplikovan\u00e9 a nejasn\u00e9 struktu\u0159e. P\u0159esto v\u00fdsledky z v\u00fdpo\u010detn\u00edch model\u016f p\u0159in\u00e1\u0161\u00ed cenn\u00e9 pochopen\u00ed, jak fyzik\u00e1ln\u011b-chemick\u00e9 procesy uvnit\u0159 te\u010dek funguj\u00ed. V\u011bdci dnes mohou d\u00edky pokro\u010dil\u00e9 v\u00fdpo\u010detn\u00ed technice propojovat v\u00fdsledky z n\u00e1ro\u010dn\u00fdch molekulov\u00fdch dynamik, kvantov\u011b chemick\u00fdch v\u00fdpo\u010dt\u016f a anal\u00fdz pomoc\u00ed um\u011bl\u00e9 inteligence s experiment\u00e1ln\u00edmi daty, co\u017e v\u00fdrazn\u011b urychluje v\u00fdvoj nov\u00fdch katalyticky aktivn\u00edch uhl\u00edkov\u00fdch te\u010dek,\u201c dodal Michal Otyepka z n\u00e1rodn\u00edho superpo\u010d\u00edta\u010dov\u00e9ho centra IT4Innovations p\u0159i V\u0160B-TUO a CATRIN Univerzity Palack\u00e9ho.[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"

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