[1]李维平,王金铭,马梦川,等.多孔状Ni-NiO/CdS催化剂的制备及其光催化性能研究[J].江西师范大学学报(自然科学版),2023,(05):451-459.[doi:10.16357/j.cnki.issn1000-5862.2023.05.02]
　LI Weiping,WANG Jingming,MA Mengchuan,et al.The Preparation and Photocatalytic Performance of Porous Ni-NiO/CdS Catalysts[J].Journal of Jiangxi Normal University:Natural Science Edition,2023,(05):451-459.[doi:10.16357/j.cnki.issn1000-5862.2023.05.02]
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多孔状Ni-NiO/CdS催化剂的制备及其光催化性能研究()
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《江西师范大学学报》（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2023年05期
页码:
451-459
栏目:
化学
出版日期:
2023-09-25

文章信息/Info

Title:
The Preparation and Photocatalytic Performance of Porous Ni-NiO/CdS Catalysts
文章编号:
1000-5862(2023)05-0451-09
作者:
李维平; 王金铭; 马梦川; 陶 勇; 吕志果*
(青岛科技大学化工学院,山东 青岛 266042)
Author(s):
LI Weiping; WANG Jingming; MA Mengchuan; TAO Yong; LYU Zhiguo*
(College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao Shandong 266042,China)
关键词:
Ni-NiO/CdS光催化剂;  Ni泡沫;  光催化;  p-n结
Keywords:
Ni-NiO/CdS photocatalyst;  Ni foam;  photocatalysis;  p-n junction
分类号:
O 614
DOI:
10.16357/j.cnki.issn1000-5862.2023.05.02
文献标志码:
A DOI:10.16357/j.cnki.issn1000-5862.2023.05.02
摘要:
该文以Ni泡沫为Ni源,经不完全氧化得到Ni-NiO,然后通过一锅法水浴合成了一种多孔结构的Ni-NiO/CdS光催化剂.利用SEM、XRD、XPS和BET等表征手段对光催化剂的微观形貌和结构以及表面成分和组成进行了全方位表征,并以光诱导裂解水制氢气的实验对催化剂的光催化活性进行评价.研究了Ni-NiO与CdS的比例和不同硫源对Ni-NiO/CdS光催化剂催化性能的影响.实验结果表明:Ni-NiO/CdS的光催化析氢速率高达19 947.9 μmol·h-1·g-1,是纯CdS的近8倍,量子效率高达32.6%.这是由于CdS和NiO形成p-n异质结和Ni0/Ni2+电子对的存在,明显提高载流子分离效率,从而提高了其光催化活性.
Abstract:
The porous Ni-NiO/CdS photocatalyst is synthesized by a one-pot water bath on the basis of incomplete oxidation of Ni foam.The morphology, structure and surface composition of the photocatalyst are characterized by SEM,XRD,XPS and BET.And the photocatalytic activity of the catalyst is evaluated by the experiment of photoinduced hydrogen production from cracking water.In addition,the ratio of Ni-NiO to CdS and the influence of different sulfur sources on the catalytic performance of Ni-NiO/CdS photocatalysts are systematically studied.The experimental results show that the photocatalytic hydrogen evolution rate of Ni-NiO/CdS is as high as 19 947.9 μmol·h-1·g-1,which is nearly eight times higher than that of pure CdS.And the quantum efficiency is as high as 32.6%.This is due to the p-n heterojunction formed by CdS and NiO and the existence of Ni0/Ni2+ electron pairs, which significantly improves the efficiency of carrier separation and thus improves the photocatalytic activity.

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备注/Memo

备注/Memo:
收稿日期:2023-06-05
基金项目:国家自然科学基金(21978141)资助项目.
通信作者:吕志果(1967—),男,山东青岛人,教授,博士,主要从事光催化和有机催化研究.E-mail:lvzhiguo@qust.edu.cn
更新日期/Last Update: 2023-09-25