Electronic Structure and Functions of Carbon Nitride in Frontier Green Catalysis

氮化碳 杂原子 氮化物 碳纤维 催化作用 异质结 纳米技术 电子结构 化学 材料科学 计算化学 有机化学 光电子学 复合材料 图层(电子) 光催化 复合数 戒指(化学)
作者
Jingkai Lin,Wenjie Tian,Huayang Zhang,Hongqi Sun,Shaobin Wang
出处
期刊:Accounts of Chemical Research [American Chemical Society]
卷期号:57 (16): 2303-2315 被引量:11
标识
DOI:10.1021/acs.accounts.4c00266
摘要

ConspectusGraphitic carbon nitride-based materials have emerged as promising photocatalysts for a variety of energy and environmental applications owing to their "earth-abundant" nature, structural versatility, tunable electronic and optical properties, and chemical stability. Optimizing carbon nitride's physicochemical properties encompasses a variety of approaches, including the regulation of inherent structural defects, morphology control, heterostructure construction, and heteroatom and metal-atom doping. These strategies are pivotal in ultimately enhancing their photocatalytic activities. Previous reviews with extensive examples have mainly focused on the synthesis, modification, and application of carbon nitride-based materials in photocatalysis. However, there has been a lack of straightforward and in-depth discussion to understand the electronic characteristics and functions of various engineered carbon nitrides as well as their precise tailoring strategies and ultimately to explain the regularity and specificity of their improved performance in targeted photocatalytic systems. In the past ten years, our group has conducted extensive investigations on carbon nitride-based materials and their application in photocatalysis. These studies demonstrate the close yet intricate relationship between the electronic structure of carbon nitride materials and their photocatalytic reactivity. Understanding the electronic structure and functions of carbon nitride, as well as different engineering strategies, is essential for the improvement of photocatalytic processes from fundamental study to practical applications.To this end, in this Account, we first delve into the nature of the electronic properties of carbon nitride, highlighting the electronic structures, including band structure, density of states, molecular orbitals, and band center, as well as its electronic functions, such as the charge distribution, internal electric field, and external electric force. Subsequently, based on recent research in our group, we present a detailed discussion of the strategic modifications of carbon nitride and the consequential impacts on the physicochemical properties, particularly the optical properties and intrinsic electronic characteristics, for enhancing the photocatalytic performance. These modifications are categorized as follows: (i) component changing, which involves intralayer and interface heterojunctions as well as homojunctions, to modulate the band-edge potentials and reactivity of photoinduced electrons and holes toward surface redox reactions; (ii) dimensional tuning, which engineers the dimensional structure of carbon nitride, to influence the electron transfer direction; (iii) defect and heteroatom modification, which introduces a symmetry break in the carbon nitride framework, to promote charge redistribution for altering the charge density and electronic structure; and (iv) anchoring of single-atom metals to facilitate orbital hybridization and charge transfer enhancement through the unique metal-N coordination configurations. Finally, we propose an appraisal of the prospects and challenges in the precise manipulation and characterization of the electronic structure and functions of carbon nitride. The integration of
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
CY03完成签到,获得积分10
刚刚
蔡继海发布了新的文献求助10
刚刚
王了了完成签到 ,获得积分10
1秒前
木又完成签到 ,获得积分10
2秒前
4秒前
hhan发布了新的文献求助10
4秒前
尼可深蓝完成签到 ,获得积分10
6秒前
地球观光客完成签到,获得积分10
7秒前
8秒前
快乐小憨憨完成签到,获得积分10
9秒前
9秒前
搬砖王发布了新的文献求助10
10秒前
个性的苑睐完成签到,获得积分20
10秒前
Akim应助北风采纳,获得10
14秒前
默默雨竹发布了新的文献求助10
14秒前
14秒前
小星完成签到 ,获得积分10
19秒前
hhan完成签到,获得积分10
19秒前
科研通AI5应助Hermit采纳,获得10
19秒前
21秒前
21秒前
linmu完成签到 ,获得积分10
21秒前
baifeng应助执着的岂愈采纳,获得30
21秒前
CodeCraft应助默默雨竹采纳,获得10
21秒前
希望天下0贩的0应助Sievi采纳,获得10
23秒前
程艳完成签到 ,获得积分10
25秒前
jcae123发布了新的文献求助10
25秒前
北风发布了新的文献求助10
26秒前
优雅愚志完成签到,获得积分10
26秒前
BJzeng完成签到,获得积分10
33秒前
奶茶麻辣烫完成签到,获得积分10
34秒前
Jasper应助科研通管家采纳,获得10
35秒前
科研通AI2S应助科研通管家采纳,获得10
35秒前
华仔应助科研通管家采纳,获得10
35秒前
Ava应助科研通管家采纳,获得10
36秒前
小马甲应助科研通管家采纳,获得10
36秒前
pluto应助科研通管家采纳,获得10
36秒前
李爱国应助科研通管家采纳,获得10
36秒前
36秒前
无情的函完成签到,获得积分20
36秒前
高分求助中
【此为提示信息,请勿应助】请按要求发布求助,避免被关 20000
Encyclopedia of Geology (2nd Edition) 2000
Maneuvering of a Damaged Navy Combatant 650
Периодизация спортивной тренировки. Общая теория и её практическое применение 310
Mixing the elements of mass customisation 300
the MD Anderson Surgical Oncology Manual, Seventh Edition 300
Nucleophilic substitution in azasydnone-modified dinitroanisoles 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3779955
求助须知:如何正确求助?哪些是违规求助? 3325373
关于积分的说明 10222612
捐赠科研通 3040542
什么是DOI,文献DOI怎么找? 1668879
邀请新用户注册赠送积分活动 798857
科研通“疑难数据库(出版商)”最低求助积分说明 758612