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“木质素优先”策略下林木生物质组分催化分离与转化研究进展 被引量:16
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作者 宋国勇 《林业工程学报》 CSCD 北大核心 2019年第5期1-10,共10页
化石资源的过度消耗及其产生的环境污染问题驱动了生物质资源各组分转化为燃料、化学品及材料的发展。传统的生物精炼产业聚焦于碳水化合物的分离、纯化、转化与利用,木质素通常作为副产物,仅有少量转化为低附加值产品。木质素的高值化... 化石资源的过度消耗及其产生的环境污染问题驱动了生物质资源各组分转化为燃料、化学品及材料的发展。传统的生物精炼产业聚焦于碳水化合物的分离、纯化、转化与利用,木质素通常作为副产物,仅有少量转化为低附加值产品。木质素的高值化利用不仅可以为下游工业提供可再生的芳香类碳氢资源,同时可大幅提升当前生物精炼产业链的经济效益。近年来,一种基于“木质素优先”策略,即生物质原料在直接催化处理下优先完成木质素组分降解转化为单分子苯酚化合物,同时保留碳水化合物不参与反应,成为生物质组分分离、抗降解屏障破除及各组分高值化利用的新方案。介绍了国内外课题组在该领域取得的一些研究进展,并从苯酚单体产率、选择性、木质素脱除率及碳水化合物保留率等主要参数入手,详细讨论了催化剂、溶剂及生物质原料等对“木质素优先”策略的影响。同时对该策略存在的问题及解决方案进行了分析,展望了未来的发展方向,以期为木质生物质的高效转化利用提供依据和参考。 展开更多
关键词 生物质 木质素 还原催化分离 碳水化合物 单体苯酚
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Research Progress in Photocatalytic CO_(2)Reduction with ZnIn_(2)S_(4)-Based Nanomaterials(Ⅱ)
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作者 CORDERO RODR GUEZ Diana Vanessa +2 位作者 TIAN Fengyu XU Liwen YAN Xuemin 《化学与生物工程》 CAS 北大核心 2024年第12期1-8,共8页
Zinc indium sulfide(ZnIn_(2)S_(4),ZIS),a novel photocatalyst with layered nanostructure,has drawn significant attention in the field of photocatalytic CO_(2)reduction in recent years due to various advantages,includin... Zinc indium sulfide(ZnIn_(2)S_(4),ZIS),a novel photocatalyst with layered nanostructure,has drawn significant attention in the field of photocatalytic CO_(2)reduction in recent years due to various advantages,including non-toxicity,structural stability,easy availability,and suitable band gap.We introduce the types of ZIS-based nanomaterials and their action mechanism in photocatalytic CO_(2)reduction.Moreover,we put forward prospects in the future development directions of ZIS-based nanomaterials for photocatalytic CO_(2)reduction. 展开更多
关键词 ZnIn_(2)S_(4) photocatalytic CO_(2)reduction HETEROSTRUCTURE charge separation
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Research Progress in Photocatalytic CO_(2) Reduction with ZnIn_(2)S_(4)-Based Nanomaterials(Ⅰ)
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作者 CORDERO RODRIGUEZ Diana Vanessa TIAN Fengyu +1 位作者 XU Liwen YAN Xuemin 《化学与生物工程》 CAS 北大核心 2024年第11期1-8,共8页
Zinc indium sulfide(ZnIn_(2)S_(4),ZIS),a novel photocatalyst with layered nanostructure,has drawn significant attention in the field of photocatalytic CO_(2) reduction in recent years due to various advantages,includi... Zinc indium sulfide(ZnIn_(2)S_(4),ZIS),a novel photocatalyst with layered nanostructure,has drawn significant attention in the field of photocatalytic CO_(2) reduction in recent years due to various advantages,including non-toxicity,structural stability,easy availability,and suitable band gap.We introduced the types of ZISbased nanomaterials and their action mechanism in photocatalytic CO_(2) reduction.Moreover,we put forward prospects in the future development directions of ZIS-based nanomaterials for photocatalytic CO_(2) reduction. 展开更多
关键词 ZnIn_(2)S_(4) photocatalytic CO_(2)reduction HETEROSTRUCTURE charge separation
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