{"id":299,"date":"2021-05-18T10:39:07","date_gmt":"2021-05-18T01:39:07","guid":{"rendered":"https:\/\/www.ees.hokudai.ac.jp\/ems\/staff\/kamiya\/?page_id=299"},"modified":"2024-04-12T17:52:25","modified_gmt":"2024-04-12T08:52:25","slug":"p2017","status":"publish","type":"page","link":"https:\/\/www.ees.hokudai.ac.jp\/ems\/staff\/kamiya\/p2017\/","title":{"rendered":"2017\u5e74\u5ea6"},"content":{"rendered":"<h2>\u7814\u7a76\u696d\u7e3e<\/h2>\n<p>\n<a href=\"https:\/\/www.ees.hokudai.ac.jp\/ems\/staff\/kamiya\/publication\/\"><i class=\"fas fa-chevron-circle-right\"><\/i> \u7814\u7a76\u696d\u7e3e\u4e00\u89a7\u3078<\/a>\n<\/p>\n<h3>\u767a\u8868\u8ad6\u6587<\/h3>\n<h4>2017\u5e74<\/h4>\n<div id=\"list\">\n<ul>\n<li><b>\u201cHighly selective and efficient photocatalytic reduction of nitrate in water by a tandem reaction system consisting of Pt\/TiO<sub>2<\/sub><span> <\/span>and SnPd\/Al<sub>2<\/sub>O<sub>3<\/sub>: A comparative study of the tandem reaction system with a typical semiconductor photocatalyst, SnPd\/TiO<sub>2<\/sub>\u201d<\/b><br \/>Jun Hirayama, Yuichi Kamiya<br \/><i>J. Catal.<\/i>, 348 (2017) 306-313.<span> <\/span><strong>DOI:<span> <\/span><a href=\"http:\/\/dx.doi.org\/10.1016\/j.jcat.2016.12.019\" rel=\"noopener\" target=\"_blank\">10.1016\/j.jcat.2016.12.019<\/a><\/strong><br \/><b>Abstract<\/b><br \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ees.hokudai.ac.jp\/ems\/staff\/kamiya\/wp-content\/uploads\/2021\/05\/2017-1.jpg\" alt=\"\" width=\"700\" height=\"495\" class=\"aligncenter size-full wp-image-259\" srcset=\"https:\/\/www.ees.hokudai.ac.jp\/ems\/staff\/kamiya\/wp-content\/uploads\/2021\/05\/2017-1.jpg 700w, https:\/\/www.ees.hokudai.ac.jp\/ems\/staff\/kamiya\/wp-content\/uploads\/2021\/05\/2017-1-300x212.jpg 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><br \/>A tandem reaction system consisting of a photocatalyst (Pt\/TiO<sub>2<\/sub>) and a non-photocatalyst (SnPd\/Al<sub>2<\/sub>O<sub>3<\/sub>) promoted the reduction of NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>into gaseous products (mainly N<sub>2<\/sub>) under light irradiation (&gt; 300 nm) in the presence of glucose as a hole scavenger. Photocatalytic H<sub>2<\/sub><span> <\/span>evolution (2H<sup>+<\/sup><span> <\/span>+ 2e<sup>&#8211;<\/sup><span> <\/span>\u2192 H<sub>2<\/sub>) proceeded over Pt\/TiO<sub>2<\/sub>, and conventional catalytic reduction of NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>with H<sub>2<\/sub><span> <\/span>(NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>+5\/2H<sub>2<\/sub><span> <\/span>\u2192 1\/2N<sub>2<\/sub><span> <\/span>+ 2H<sub>2<\/sub>O + OH<sup>&#8211;<\/sup>) occurred over SnPd\/Al<sub>2<\/sub>O<sub>3<\/sub>. We optimized the loading amount of Pt on TiO<sub>2<\/sub>, the Sn\/Pd ratio, the loading amount of SnPd on Al<sub>2<\/sub>O<sub>3<\/sub>, and the two catalyst dosages. The optimized tandem system gave a high reduction rate of NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>and high selectivity for gas (94%) from the photocatalytic reduction of NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>in water. On the other hand, a usual semiconductor photocatalyst SnPd\/TiO<sub>2<\/sub><span> <\/span>with an optimized Sn\/Pd ratio and an optimized loading amount of SnPd bimetal on TiO<sub>2<\/sub><span> <\/span>reduced NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>at about two-thirds as fast as the tandem system and was less selective for gas (70%). The tandem system suppressed the wasted H<sub>2<\/sub><span> <\/span>formation, resulting in high light use efficiency for the NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>reduction (95%), which is defined as the ratio of electrons consumed for NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>reduction to the total number of electrons consumed for both NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>reduction and photocatalytic H<sub>2<\/sub><span> <\/span>evolution, though the tandem and SnPd\/TiO<sub>2<\/sub><span> <\/span>systems consumed about the same total number of electrons. The tandem system has two advantages: (i) the Pt\/TiO<sub>2<\/sub><span> <\/span>and SnPd\/Al<sub>2<\/sub>O<sub>3<\/sub><span> <\/span>subsystems can be separately designed to give highly efficient photocatalytic and catalytic reactions, respectively; and (ii) the reaction rates of photocatalytic and catalytic reactions can be easily controlled by changing the catalyst dosage in the reactor. Those advantages brought about a high reduction rate of NO<sub>3<\/sub><sup>&#8211;<\/sup>, high selectivity for gas, and high light use efficiency for NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>reduction in the photocatalytic reduction of NO<sub>3<\/sub><sup>&#8211;<\/sup><span> <\/span>in water.<\/li>\n<li><b>\u201cAl distribution and catalytic performance of ZSM-5 zeolites synthesized with various alcohols\u201d<\/b><br \/>Turgen Biligetu, Yong Wang, Toshiki Nishitoba, Ryoichi Otomo, Sungsik Park, Hiroshi Mochizuki, Junko N. Kondo, Takashi Tatsumi, Toshiyuki Yokoi<br \/><i>J. Catal.<\/i>, 353 (2017) 1-10.<span> <\/span><strong>DOI:<span> <\/span><a href=\"http:\/\/dx.doi.org\/10.1016\/j.jcat.2017.06.026\" rel=\"noopener\" target=\"_blank\">10.1016\/j.jcat.2017.06.026<\/a><\/strong><\/li>\n<\/ul>\n<\/div>\n<h3>\u5b66\u4f1a\u767a\u8868<\/h3>\n<h4>2017\u5e74\u5ea6<\/h4>\n<div id=\"list\">\n<ul>\n<li><strong>16<sup>th<\/sup><span> <\/span>Korea-Japan Symposium on Catalysis &amp; 3<sup>rd<span> <\/span><\/sup>International Symposium of Institute for Catalysis\uff085\u670815\u65e5\uff5e17\u65e5\u3001\u672d\u5e4c\uff09<\/strong><br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u91d1 \u201cCatalytic Property of Silica-Supported 12-Tungstophosphoric Acid Modified with Organosilanes\u201d<br \/>\uff08\u30dd\u30b9\u30bf\u30fc\u767a\u8868\uff09\u5ca9\u5009 \u201cSelective Oxidation of Methacrolein over Strong Acid-Added Chromium Oxide Catalysts\u201d<\/li>\n<li><strong>\u77f3\u6cb9\u5b66\u4f1a\u7b2c66\u56de\u7814\u7a76\u767a\u8868\u4f1a\uff085\u670823\u65e5\uff5e24\u65e5\u3001\u6771\u4eac\uff09<\/strong><br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u795e\u8c37 \u201c\u9178\u3092\u6dfb\u52a0\u3057\u305f\u30b7\u30ea\u30ab\u62c5\u6301\u30af\u30ed\u30e0\u9178\u5316\u7269\u89e6\u5a92\u306b\u3088\u308b\u30e1\u30bf\u30af\u30ed\u30ec\u30a4\u30f3\u9078\u629e\u9178\u5316\u201d<\/li>\n<li><strong>\u65e5\u672c\u5316\u5b66\u4f1a\u5317\u6d77\u9053\u652f\u90e82018\u5e74\u590f\u5b63\u7814\u7a76\u767a\u8868\u4f1a\uff087\u670822\u65e5\u3001\u65ed\u5ddd\uff09<\/strong><br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u5927\u53cb \u201c\u56fa\u76f8\u5408\u6210\u3057\u305f\u4f4e\u6b21\u30c1\u30bf\u30f3\u9178\u5316\u7269\u306e\u89e6\u5a92\u6a5f\u80fd\u201d<br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u9577\u5c3e \u201c\u90e8\u5206\u6c34\u7d20\u9084\u5143\u3057\u305f\u91d1\u5c5e\u9178\u5316\u7269\u306e\u89e6\u5a92\u7279\u6027\u201d<br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u6a4b\u672c \u201c\u7570\u5143\u7d20\u3067\u7f6e\u63db\u3057\u305f \u9244\u7cfb\u30da\u30ed\u30d6\u30b9\u30ab\u30a4\u30c8\u578b\u9178\u5316\u7269\u306e\u9178\u5316\u89e6\u5a92\u7279\u6027\u201d<br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u5c71\u53e3 \u201c\u91d1\u5c5e\u30ea\u30f3\u9178\u5869\u3092\u89e6\u5a92\u306b\u7528\u3044\u305f\u591a\u4fa1\u30a2\u30eb\u30b3\u30fc\u30eb\u306e\u8131\u6c34\u53cd\u5fdc\u201d<br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u5409\u7530 \u201c\u6c34\u4e2d\u904e\u5869\u7d20\u9178\u30a4\u30aa\u30f3\u3092\u6c34\u7d20\u5316\u5206\u89e3\u3059\u308b\u62c5\u6301\u91d1\u5c5e\u89e6\u5a92\u306e\u63a2\u7d22\u201d<\/li>\n<li><strong>\u7b2c57\u56de\u30aa\u30fc\u30ed\u30e9\u30bb\u30df\u30ca\u30fc\uff087\u670823\u65e5\uff5e24\u65e5\u3001\u6771\u795e\u697d\uff09<\/strong><br \/>\uff08\u30dd\u30b9\u30bf\u30fc\u767a\u8868\uff09\u9577\u5c3e \u201c\u90e8\u5206\u6c34\u7d20\u9084\u5143\u3057\u305f\u91d1\u5c5e\u9178\u5316\u7269\u306e\u89e6\u5a92\u7279\u6027\u201d<br \/>\uff08\u30dd\u30b9\u30bf\u30fc\u767a\u8868\uff09\u6a4b\u672c \u201c\u7570\u5143\u7d20\u3067\u90e8\u5206\u7f6e\u63db\u3057\u305f\u9244\u7cfb\u30da\u30ed\u30d6\u30b9\u30ab\u30a4\u30c8\u578b\u9178\u5316\u7269\u306e\u30e1\u30bf\u30f3\u9178\u5316\u89e6\u5a92\u7279\u6027\u201d<\/li>\n<li><strong>\u7b2c120\u56de\u89e6\u5a92\u8a0e\u8ad6\u4f1a\uff089\u670812\u65e5\uff5e14\u65e5\u3001\u677e\u5c71\uff09<\/strong><br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u76f8\u99ac \u201cSn\/Al<sub>2<\/sub>O<sub>3<\/sub>\u3068Pd\/Al<sub>2<\/sub>O<sub>3<\/sub>\u3092\u5171\u5206\u6563\u3057\u305f\u53cd\u5fdc\u7cfb\u306b\u3088\u308b\u6c34\u4e2d\u785d\u9178\u30a4\u30aa\u30f3\u9084\u5143\u201d<br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u67d3\u8c37 \u201c\u3055\u307e\u3056\u306a\u65b9\u6cd5\u3067\u5408\u6210\u3057\u305f Hf-Beta\u306e\u30eb\u30a4\u30b9\u9178\u89e6\u5a92\u7279\u6027\u201d<br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u4fdd\u7530 \u201c12-\u30e2\u30ea\u30d6\u30c9\u30ea\u30f3\u9178\u3092\u89e6\u5a92\u3068\u3059\u308b\u30e1\u30bf\u30af\u30ed\u30ec\u30a4\u30f3\u9078\u629e\u9178\u5316\u53cd\u5fdc\u306b\u5bfe\u3059\u308b\u6c34\u84b8\u6c17\u306e\u4f5c\u7528\u6a5f\u69cb\u201d<br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u5ca9\u5009 \u201c\u30bf\u30f3\u30b0\u30b9\u30c8\u30ea\u30f3\u9178\u3092\u6dfb\u52a0\u3057\u305f\u30b7\u30ea\u30ab\u62c5\u6301\u30af\u30ed\u30e0\u9178\u5316\u7269\u89e6\u5a92\u306b\u3088\u308b\u30e1\u30bf\u30af\u30ed\u30ec\u30a4\u30f3\u9078\u629e\u9178\u5316\u201d<br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u5927\u53cb \u201c\u4f4e\u6b21\u30c1\u30bf\u30f3\u9178\u5316\u7269\u306e\u9178\u5869\u57fa\u6027\u8cea\u3068\u89e6\u5a92\u6a5f\u80fd\u201d<\/li>\n<li><strong>\u7b2c47\u56de\u77f3\u6cb9\u30fb\u77f3\u6cb9\u5316\u5b66\u8a0e\u8ad6\u4f1a\uff0811\u670816\u65e5\uff5e17\u65e5\u3001\u9ce5\u53d6\uff09<\/strong><br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u5927\u53cb \u201cB\u30b5\u30a4\u30c8\u539f\u5b50\u3092\u90e8\u5206\u7f6e\u63db\u3057\u305f\u9244\u7cfb\u30da\u30ed\u30d6\u30b9\u30ab\u30a4\u30c8\u578b\u9178\u5316\u7269\u89e6\u5a92\u3092\u7528\u3044\u305f\u4f4e\u7d1a\u70ad\u5316\u6c34\u7d20\u306e\u9178\u5316\u201d<\/li>\n<li><strong>\u7b2c33\u56de\u30bc\u30aa\u30e9\u30a4\u30c8\u7814\u7a76\u767a\u8868\u4f1a\uff0811\u670830\u65e5\uff5e12\u67081\u65e5\u3001\u5c90\u961c\uff09<\/strong><br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u67d3\u8c37 \u201c\u30d5\u30c3\u7d20\u542b\u6709Hf-Beta\u306e\u30dd\u30b9\u30c8\u5408\u6210\u304a\u3088\u3073\u305d\u306e\u30eb\u30a4\u30b9\u9178\u89e6\u5a92\u7279\u6027\u201d<\/li>\n<li><strong>\u5316\u5b66\u7cfb\u5b66\u5354\u4f1a\u5317\u6d77\u9053\u652f\u90e82018\u5e74\u51ac\u5b63\u7814\u7a76\u767a\u8868\u4f1a\uff081\u670816\u65e5\uff5e17\u65e5\u3001\u672d\u5e4c\uff09<\/strong><br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u5c0f\u8239 \u201c\u30a2\u30eb\u30df\u30ca\u62c5\u6301\u4e9c\u925b-\u30cb\u30c3\u30b1\u30eb\u89e6\u5a92\u306b\u3088\u308b\u6c34\u4e2d\u785d\u9178\u30a4\u30aa\u30f3\u306e\u7a92\u7d20\u3078\u306e\u9078\u629e\u9084\u5143\u201d<br \/>\uff08\u53e3\u982d\u767a\u8868\uff09\u795d\u8feb \u201cBPO<sub>4<\/sub>\u3092\u56fa\u4f53\u9178\u89e6\u5a92\u306b\u7528\u3044\u305f\u30d7\u30ed\u30d1\u30f3\u30b8\u30aa\u30fc\u30eb\u306e\u8131\u6c34\u53cd\u5fdc\u201d<br \/>\n            \uff08\u53e3\u982d\u767a\u8868\uff09\u5341\u5ddd \u201c\u9178\u5316\u30b3\u30d0\u30eb\u30c8\u89e6\u5a92\u306b\u3088\u308b\u6c34\u4e2dNH<sub>4<\/sub><sup>+<\/sup>\u30aa\u30be\u30f3\u9178\u5316\u306e\u53cd\u5fdc\u7d4c\u8def\u201d<\/li>\n<li><strong>16<sup>th<\/sup><span> <\/span>Japan-Taiwan Joint Symposium on Catalysis\uff081\u670829\u65e5\uff5e31\u65e5\u3001\u4eac\u90fd\uff09<\/strong><br \/>\n            \uff08\u62db\u5f85\u8b1b\u6f14\uff09\u795e\u8c37 \u201cCatalytic Reduction of Nitrate for Purification of Actually Polluted Groundwater\u201d<\/p>\n<li><strong>Symposium on Nanomaterials for Environmental Purification and Energy Conversion\uff082\u670820\u65e5\uff5e21\u65e5\u3001\u672d\u5e4c\uff09<\/strong><br \/>\n            \uff08\u62db\u5f85\u8b1b\u6f14\uff09\u795e\u8c37 \u201cCatalytic reduction of nitrate toward purification of actually polluted groundwater\u201d<\/li>\n<li><strong>\u7b2c121\u56de\u89e6\u5a92\u8a0e\u8ad6\u4f1a\uff083\u670822\u65e5\uff5e23\u65e5\u3001\u6771\u4eac\uff09<\/strong><br \/>\n            \uff08\u53e3\u982d\u767a\u8868\uff09\u91d1 \u201c\u30a2\u30df\u30c9\u306e\u52a0\u6c34\u5206\u89e3\u306b\u3088\u308b\u8fd1\u63a5\u3057\u305f\u9178\u70b9-\u5869\u57fa\u70b9\u306e\u69cb\u7bc9\u201d<\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7814\u7a76\u696d\u7e3e \u7814\u7a76\u696d\u7e3e\u4e00\u89a7\u3078 \u767a\u8868\u8ad6\u6587 2017\u5e74 \u201cHighly selective and efficient photocatalytic reduction &#8230; 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