石墨相氮化碳光催化研究进展
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- 英文论文题名：Graphitic Carbon Nitride Polymers for Sustainable Photoredox Catalysis
- 论文作者：王心晨
- 英文论文作者：Xinchen Wang ; College of Chemistry ; Fuzhou University
- 年：2016
- 作者机构：福州大学化学学院;
- 论文关键词：氮化碳 ; 光催化
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第十六分会：晶体工程
- 语种：中文
- 分类号：O643.36;O644.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第十六分会 ; 晶体工程
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：129k
- 原文格式：D
- 会议级别：全国
摘要
利用太阳能光催化分解水制氢和CO_2光固定,实现从太阳能到化学能的直接转化,是未来最重要和最简捷的氢能生产技术之一,在解决能源短缺和环境污染方面具有重要科学意义和应用前景.近40年来,人们开发了数百种无机半导体光催化剂,但是这些催化剂尚无同时具备高量子效率和高可见光利用率,而且催化剂的主要组份大都包含昂贵的、资源稀缺材料,难以实现太阳能光催化技术的实际应用.因此,开发高效、稳定、廉价和环境友好的可见光光催化剂成为当前国际光催化研究的前沿和发展方向之一.近年来,一种仅由C、N两种元素通过sp2杂化组成的共轭半导体-石墨相氮化碳(g-C_3N_4),由于其独特的半导体能带结构和化学稳定性,被作为一类不含金属成分的新型可见光光催化剂,引起了人们的广泛关注.本报告主要介绍我们课题组在g-C_3N_4光催化剂研究中的一些重要进展,如聚合物半导体光催化剂催化剂的分子设计与合成、催化剂的组成-结构-性能调控以及聚合物光催化在分解水、CO_2还原和选择性氧化等方面的应用基础研究.
The production of hydrogen from water using a catalyst and sunlight is an ideal future energy source,independent of fossil reserves.During the past 40 years,various inorganic semiconductors and molecular assemblies have been developed as catalysts for sustainable hydrogen production from water under visible light illumination.However,for an economical utilization of water and solar energy catalysts that are sufficiently efficient,stable,cheap,and capable of harvesting the abundant visible light are required.We have found that an abundant material,polymeric carbon nitride,can activate hydrogen production from water under visible light irradiation.Graphitic carbon nitride(g-C_3N_4) is the most stable phase of covalent carbon nitride and the facile synthesis of the melon substructure from simple liquid precursors and monomers allows easy engineering of carbon nitride materials to achieve better photocatlytic performance via several processing routes and methods.Here,we will present the last advance on the modification of graphitic carbon nitride polymers for solar energy conversion.
The production of hydrogen from water using a catalyst and sunlight is an ideal future energy source,independent of fossil reserves.During the past 40 years,various inorganic semiconductors and molecular assemblies have been developed as catalysts for sustainable hydrogen production from water under visible light illumination.However,for an economical utilization of water and solar energy catalysts that are sufficiently efficient,stable,cheap,and capable of harvesting the abundant visible light are required.We have found that an abundant material,polymeric carbon nitride,can activate hydrogen production from water under visible light irradiation.Graphitic carbon nitride(g-C_3N_4) is the most stable phase of covalent carbon nitride and the facile synthesis of the melon substructure from simple liquid precursors and monomers allows easy engineering of carbon nitride materials to achieve better photocatlytic performance via several processing routes and methods.Here,we will present the last advance on the modification of graphitic carbon nitride polymers for solar energy conversion.
引文
[1]Wang,X.;Maeda,K.;Thomas,A.;Takanabe,K.;Xin,G.;Carlsson,J.M.;Domen,K.;Antonietti,M.Nat.Mater.2009,8:76.
[2]Zheng,Y.;Lin,L.;Wang,B.;Wang,X.Angew.Chem.,Int.Ed.2015,54:12868.
[2]Zheng,Y.;Lin,L.;Wang,B.;Wang,X.Angew.Chem.,Int.Ed.2015,54:12868.