{"id":2709,"date":"2015-12-28T10:44:50","date_gmt":"2015-12-28T02:44:50","guid":{"rendered":"http:\/\/brg.groups.xtbg.ac.cn\/?p=2709"},"modified":"2015-12-28T10:44:50","modified_gmt":"2015-12-28T02:44:50","slug":"hydrolysis-of-selected-tropical-plant-wastes-catalyzed-by-a-magnetic-carbonaceous-acid-with-microwave","status":"publish","type":"post","link":"https:\/\/woodrefinery.com\/zhenfang\/hydrolysis-of-selected-tropical-plant-wastes-catalyzed-by-a-magnetic-carbonaceous-acid-with-microwave\/","title":{"rendered":"Hydrolysis of Selected Tropical Plant Wastes Catalyzed by a Magnetic Carbonaceous Acid with Microwave"},"content":{"rendered":"<p>Many biomass residues are produced in china and it is important to volatilize them, such as conversion of them to sugars by hydrolysis. The hydrolysis of lignocelluloses in concentrated and diluted homogenous acids has been practiced for many years, but problems such as corrosion hazards, acid-waste and difficulties in separation are not solved effectively. Various solid materials, such as transition metal oxides, ion-exchange resins, zeolites and sulfonated carbons are used as environmentally friendly catalysts for biomass hydrolysis because of their reusability, less corrosiveness and non-toxicity. And many magnetization methods are introduced by chemical reactions, such as precipitation and subsequent reduction of Fe<sup>3+<\/sup> to Fe or Fe<sub>3<\/sub>O<sub>4<\/sub> which may cause pollution and high cost. In this work, magnetic sulfonated acid was synthesized from glucose and magnetized without chemical reactions by simply mixing magnetic Fe<sub>3<\/sub>O<sub>4<\/sub> nanoparticles with aqueous glucose solution.<br \/>\nMiss Tongchao Su (PhD student), under the guidance of Professor Zhen Fang from Xishuangbanna Tropical Botanical Garden (CAS), prepared magnetic catalyst (C-SO<sub>3<\/sub>H\/Fe<sub>3<\/sub>O<sub>4<\/sub>) by evaporation the mixture of Fe<sub>3<\/sub>O<sub>4<\/sub> nanoparticles and aqueous glucose solution, and pyrolysis in a tubular furnace at temperature of 700<sup> o<\/sup>C for 1 h, and sulfonated by 98% H<sub>2<\/sub>SO<sub>4<\/sub> in oil bath at 150<sup> o<\/sup>C for 20 h. The sulfonated sample was washed repeatedly with distilled water at 200 <sup>o<\/sup>C for 3 h until no SO<sub>4<\/sub><sup>&#8211;<\/sup> was detected using CaCl<sub>2<\/sub>. C-SO<sub>3<\/sub>H\/Fe<sub>3<\/sub>O<sub>4<\/sub> catalyst had -SO<sub>3<\/sub>H, -COOH and -OH acid groups for biomass hydrolysis. Under conditions of 9\/50 cellulose\/catalyst weight ratio, and 75\/1 water\/catalyst weight ratio for 3.5 h at 190 <sup>o<\/sup>C assisted with microwave, the catalyst was applied to the hydrolysis of bagasse, <em>Jatropha<\/em> and <em>Plukenetia <\/em>hulls. For water-ethanol extracted bagasse, <em>Jatropha<\/em> and <em>Plukenetia <\/em>hulls, higher yields of total reducing sugars (TRS), glucose and xylose were 79.8%, 58.3%, 97.2%; 47.2%, 35.6%, 96.4% and 54.4%, 35.8%, 94.9%, respectively. The catalyst had a good stability and after seven cycles, it showed no obvious deactivation.<\/p>\n<p>The results are published in Scientific Reports:<\/p>\n<p>TC Su, Zhen Fang*, F Zhang, J Luo, XK Li. Hydrolysis of Selected Tropical Plant Wastes Catalyzed by a Magnetic Carbonaceous Acid with Microwave, 5, 17538 (2015).<\/p>\n<p><strong>\u5fae\u6ce2\u8f85\u52a9\u78b3\u57fa\u78c1\u6027\u56fa\u4f53\u9178\u6c34\u89e3\u70ed\u5e26\u690d\u7269\u5e9f\u5f03\u7269<\/strong><\/p>\n<p>\u5728\u4e2d\u56fd, \u968f\u7740\u7ecf\u6d4e\u7684\u53d1\u5c55\u548c\u4eba\u6c11\u751f\u6d3b\u6c34\u5e73\u7684\u63d0\u9ad8\uff0c\u4ea7\u751f\u51fa\u8d8a\u6765\u8d8a\u591a\u7684\u751f\u7269\u8d28\u5e9f\u5f03\u7269\uff0c\u5e94\u8be5\u5145\u5206\u5229\u7528\u5b83\u4eec\uff0c\u4f8b\u5982\u901a\u8fc7\u6c34\u89e3\u8f6c\u5316\u4e3a\u53ef\u53d1\u9175\u7cd6\u4ee5\u751f\u4ea7\u751f\u7269\u71c3\u6599\u548c\u5316\u5b66\u54c1\u3002\u591a\u5e74\u6765\uff0c\u6728\u8d28\u7ea4\u7ef4\u7d20\u5728\u6db2\u4f53\u9178\u4e2d\u7684\u6c34\u89e3\u5f97\u5230\u5e7f\u6cdb\u5730\u7814\u7a76\u548c\u5e94\u7528\u3002\u4f46\u662f\u8bbe\u5907\u8150\u8680\uff0c\u9178\u5e9f\u5f03\u7269\u4ee5\u53ca\u56de\u6536\u95ee\u9898\u90fd\u6ca1\u6709\u5f97\u5230\u5f88\u597d\u5730\u89e3\u51b3\u3002\u6240\u4ee5\uff0c\u8fd1\u5e74\u6765\uff0c\u591a\u79cd\u56fa\u4f53\u50ac\u5316\u5242\u88ab\u5f00\u53d1\u7528\u4ee5\u6c34\u89e3\u6728\u8d28\u7ea4\u7ef4\u7d20\uff0c\u4f8b\u5982\u8fc7\u6e21\u91d1\u5c5e\u6c27\u5316\u7269\uff0c\u79bb\u5b50\u4ea4\u6362\u6811\u8102\uff0c\u6cb8\u77f3\u4ee5\u53ca\u78fa\u5316\u78b3\u7b49\u7b49\u3002\u56fa\u4f53\u50ac\u5316\u5242\u80fd\u591f\u56de\u6536\uff0c\u65e0\u6bd2\u4ee5\u53ca\u65e0\u8150\u8680\u6027\u7b49\u4f18\u70b9\u3002\u901a\u8fc7\u5316\u5b66\u65b9\u6cd5\u6c89\u6dc0\uff0c\u8fd8\u539f\u7684\u65b9\u6cd5\u5f15\u5165\u78c1\u6027\u7269\u8d28\uff08Fe<sub>3<\/sub>O<sub>4<\/sub>\uff09\u4ee5\u4fbf\u4e8e\u50ac\u5316\u5242\u66f4\u597d\u5730\u56de\u6536\u5229\u7528\u3002\u672c\u7814\u7a76\u5229\u7528\u8461\u8404\u7cd6\u548c\u7eb3\u7c73\u56db\u6c27\u5316\u4e09\u94c1\u4e3a\u539f\u6599\uff0c\u901a\u8fc7\u7b80\u5355\u7684\u6df7\u5408\u548c\u78fa\u5316\u5408\u6210\u78c1\u6027\u9178\u50ac\u5316\u5242\u3002<\/p>\n<p>\u4e2d\u56fd\u79d1\u5b66\u9662\u897f\u53cc\u7248\u7eb3\u70ed\u5e26\u690d\u7269\u56ed\u751f\u7269\u80fd\u6e90\u7ec4\uff0c\u535a\u58eb\u751f\u82cf\u540c\u8d85\u5c0f\u59d0\u5728\u65b9\u771f\u7814\u7a76\u5458\u7684\u6307\u5bfc\u4e0b\uff0c\u901a\u8fc7\u84b8\u53d1\u56db\u6c27\u5316\u4e09\u94c1\u548c\u8461\u8404\u7cd6\u6df7\u548c\u6eb6\u6db2\u4e2d\u7684\u6c34\u5206\uff0c\u7136\u540e\u5728\u9a6c\u5f17\u7089\u4e2d700 <sup>o<\/sup>C\u70ed\u89e3\u78b3\u53161 h\uff0c\u4ee5\u53ca\u572898%\u6d53\u786b\u9178\u4e2d\u78fa\u5316\u7684\u65b9\u6cd5\u6210\u529f\u5408\u6210\u4e86C-SO<sub>3<\/sub>H\/Fe<sub>3<\/sub>O<sub>4<\/sub> \u78c1\u6027\u50ac\u5316\u5242\u3002\u50ac\u5316\u5242\u5728\u4f7f\u7528\u4e4b\u524d\uff0c\u5229\u7528\u84b8\u998f\u6c34\u5728200 <sup>o<\/sup>C\u6c34\u6d173 h\u76f4\u5230\u6c34\u6d17\u6db2\u4e2d\u65e0SO<sub>4<\/sub><sup>&#8211;<\/sup>\u57fa\u56e2\u3002C-SO<sub>3<\/sub>H\/Fe<sub>3<\/sub>O<sub>4<\/sub>\u50ac\u5316\u5242\u5177\u6709-SO<sub>3<\/sub>H, -COOH\u548c-OH\u9178\u6027\u529f\u80fd\u56e2\uff0c\u5229\u4e8e\u6c34\u89e3\u3002\u5728\u53cd\u5e94\u6e29\u5ea6190 <sup>o<\/sup>C, 3.5 h, 9\/50\u751f\u7269\u8d28\u548c\u50ac\u5316\u5242\u8d28\u91cf\u6bd4\uff0c\u4ee5\u53ca75\/1\u6c34\u548c\u50ac\u5316\u5242\u8d28\u91cf\u6bd4\u4f8b\u6761\u4ef6\u4e0b\uff0c\u5728\u5fae\u6ce2\u4e2d\u6c34\u89e3\u7518\u8517\u6e23\uff0c\u5c0f\u6850\u5b50\u679c\u58f3\u548c\u5357\u7f8e\u6cb9\u85e4\u679c\u58f3\u3002\u5176\u4e2d\u9187-\u6c34\u8403\u53d6\u4e4b\u540e\u7684\u7518\u8517\u6e23\uff0c\u5c0f\u6850\u5b50\u548c\u5357\u7f8e\u6cb9\u85e4\u679c\u58f3\u6750\u6599\uff0c\u6c34\u89e3\u5177\u6709\u8f83\u9ad8\u7684\u4ea7\u7387\uff0c\u5176\u4e2d\u603b\u8fd8\u539f\u7cd6\u3001\u8461\u8404\u7cd6\u4ee5\u53ca\u6728\u7cd6\u7684\u4ea7\u7387\u5206\u522b\u4e3a79.8%, 58.3%, 97.2%; 47.2%, 35.6%, 96.4% \u548c54.4%, 35.8%, 94.9%\u3002\u6b64\u50ac\u5316\u5242\u5177\u6709\u5f88\u597d\u5730\u7a33\u5b9a\u6027\uff0c\u50ac\u5316\u5242\u5229\u7528\u4e03\u6b21\u4e4b\u540e\u4ecd\u65e0\u660e\u663e\u7684\u5931\u6d3b\u3002<\/p>\n<p>\u76f8\u5173\u7814\u7a76\u6210\u679c\u53d1\u8868\u5728Scientific Reports\u4e0a\uff1a<br \/>\nTC Su, Zhen Fang*, F Zhang, J Luo, XK Li. Hydrolysis of Selected Tropical Plant Wastes Catalyzed by a Magnetic Carbonaceous Acid with Microwave, 5, 17538 (2015).<\/p>\n<p><a href=\"https:\/\/woodrefinery.com\/zhenfang\/wp-content\/uploads\/2015\/12\/W020151231349630757163.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2728\" src=\"https:\/\/woodrefinery.com\/zhenfang\/wp-content\/uploads\/2015\/12\/W020151231349630757163.png\" alt=\"\" width=\"500\" height=\"371\" srcset=\"https:\/\/woodrefinery.com\/zhenfang\/wp-content\/uploads\/2015\/12\/W020151231349630757163.png 708w, https:\/\/woodrefinery.com\/zhenfang\/wp-content\/uploads\/2015\/12\/W020151231349630757163-300x222.png 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p><strong>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u56fe\u4e3a\u78c1\u6027\u50ac\u5316\u5242<\/strong><strong>C-SO<sub>3<\/sub>H\/Fe<sub>3<\/sub>O<sub>4<\/sub><\/strong><strong>\u7528\u4e8e\u5728\u5fae\u6ce2\u6c34\u89e3\u70ed\u5e26\u690d\u7269\u5e9f\u5f03\u7269<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many biomass residues are produced in china and it is i [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts\/2709"}],"collection":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/comments?post=2709"}],"version-history":[{"count":0,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts\/2709\/revisions"}],"wp:attachment":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/media?parent=2709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/categories?post=2709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/tags?post=2709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}