Homogeneous dual-site P lattice doping in CdS quantum rods for visible-light photocatalytic water splitting

Homogeneous dual-site P lattice doping in CdS quantum rods for visible-light photocatalytic water splitting
复制标题

CdS量子棒中均质双位点P晶格掺杂用于可见光光催化水分解

DOI:
10.1016/j.ces.2021.116594
复制
发表时间:
2021-07
影响因子:
4.7
通讯作者:
Wang Lianzhou
Wang Lianzhou
中科院分区:
工程技术2区
文献类型:
--
作者:
Li He;An hua;Chong Ben;Yang Guidong;Wang Lianzhou

文献摘要

参考文献

被引文献

相似文献

半导体材料中的双位晶格掺杂是非常有前途的,因为它可以调节光催化剂的子带电子结构和电荷分布。然而,通过使用相同杂原子的双位点掺杂来精确地调节能带结构是具有挑战性的。本文报道了CdS量子棒中均匀的双位P晶格掺杂,即P均匀地掺杂到S的取代位和间隙位,导致价带和导带负移,并具有非凡的可见光激发效率。新设计的光催化剂中产生的电子具有很强的氧化还原电位,可将H+还原为H2。通过在P-CdS量子棒表面引入非平凡的助催化剂Ni 3C量子点,催化剂在435 nm处的表观量子效率达到15.7%,是未掺杂CdS的5倍。
Dual-site lattice doping in semiconductor materials is highly promising for photocatalysis as it can tune the sub-band electronic structure and charge distribution of the photocatalyst. However, it is challenging to precisely regulate the band structure by dual-site doping using the same heteroatom. Herein, we report the homogeneous dual-site P lattice doping in CdS quantum rods, i.e. P is homogeneously doped into both substitutional site of S and interstitial site, leading to negative shift of valence and conduction bands with extraordinary visible-light excitation efficiency. The electrons generated in the newly designed photocatalyst have strong redox potential in reducing H+into H2in photocatalysis. By introducing nontrivial co-catalyst Ni3C quantum dots onto the surface of P-CdS quantum rods, the apparent quantum efficiency of the catalyst achieves 15.7% at 435 nm, which is 5 times higher than that of pristine CdS.
DOI: 10.1016/j.ces.2020.116069
发表时间: 2021-01
影响因子: 4.7
作者:
He Li;N. Wells;B. Chong;Baorong Xu;Jinjia Wei;Bolun Yang;Guidong Yang
通讯作者: He Li;N. Wells;B. Chong;Baorong Xu;Jinjia Wei;Bolun Yang;Guidong Yang
DOI: 10.1021/acsaem.8b00526
发表时间: 2018-05
影响因子: 6.4
作者:
Nan Wang;Jing Wang;Jinhui Hu;Xiaoqing Lu;Jie Sun;Feng Shi;Zong-Huai Liu;Zhibin Lei;Ruibin Jiang
通讯作者: Ruibin Jiang
DOI: 10.1002/anie.201501532
发表时间: 2015-07-06
影响因子: 16.6
作者:
Kouser, Summayya;Lingampalli, S. R.;Rao, C. N. R.
通讯作者: Rao, C. N. R.
具有长寿命光生电子的间隙 P 掺杂 CdS,用于无需牺牲剂的光催化水分解
DOI: 10.1002/adma.201705941
发表时间: 2018-02-08
期刊: ADVANCED MATERIALS
影响因子: 29.4
作者:
Shi, Rui;Ye, Hui-Fang;Chen, Yong
通讯作者: Chen, Yong
通过表面梯度扩散掺杂引入定向内置电场,增强 CdS 纳米棒光催化析氢
DOI: 10.1021/acs.nanolett.7b01147
发表时间: 2017-06-01
期刊: NANO LETTERS
影响因子: 10.8
作者:
Huang, Hengming;Dai, Baoying;Xu, Zhongzi
通讯作者: Xu, Zhongzi