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An S, Zhang L, Ding X, Xue Y, Tian J, Qin Y, You J, Wang X, Zhang H. A general strategy for the enhanced H 2 production performance of CdS/noble metal sulfide nanorods photocatalysts by cation exchange. J Colloid Interface Sci 2024; 664:848-856. [PMID: 38493650 DOI: 10.1016/j.jcis.2024.03.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
In this work, we report a series of noble metal (Ag, Au, Pt, etc.) sulfides that act as co-catalysts anchoring on CdS nanorods (NRs) obtained via a cation exchange strategy to promote photocatalytic hydrogen evolution. CdS NRs are first generated via a hydrothermal routine, noble metal sulfides are then in-situ grown on CdS NRs by a cation exchange method. CdS/Ag2S, CdS/Au2S and CdS/PtS NRs show improved hydrogen production rates (2506.88, 1513.17 and 1004.54 μmol g-1h-1, respectively), approximately 18, 11 and 7 times higher than CdS NRs (138.27 μmol g-1h-1). Among CdS/noble metal sulfide NRs, CdS/Ag2S NRs present the best H2 production performance. The apparent quantum efficiency (AQE) of CdS/Ag2S NRs achieves 3.11 % at λ = 370 nm. The improved photocatalytic performance of CdS/noble metal sulfide NRs dues to the following points: i) Noble metal sulfides on CdS NRs are beneficial for elevating light-absorbing and light-utilizing capacities, contributing to generating more photoexcited charges; ii) Noble metal sulfides are in-situ grown on CdS NRs as electron acceptors by a cation exchange method, thus the photoexcited electrons generated by CdS NRs rapidly migrate to the surface of noble metal sulfides, successfully accelerating the carriers separation efficiency. This series of noble metal sulfides acting as co-catalysts anchoring on CdS NRs offer new insights into the construction principles of high-performance photocatalytic hydrogen evolution catalysts.
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Affiliation(s)
- Shanna An
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Luming Zhang
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xiaoyan Ding
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Yanjun Xue
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Jian Tian
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Yingying Qin
- Archives Department, China University of Petroleum (East China), Qingdao 266580, China.
| | - Junhua You
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China
| | - Xiaoxue Wang
- Department of Orthopedics, Joint Surgery and Sports Medicine, First Affiliated Hospital of China Medical University, Shenyang Sports Medicine Clinical Medical Research Center, Shenyang 110001, China
| | - Hangzhou Zhang
- Department of Orthopedics, Joint Surgery and Sports Medicine, First Affiliated Hospital of China Medical University, Shenyang Sports Medicine Clinical Medical Research Center, Shenyang 110001, China.
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Liu F, Feng Z, Zhang X, Cui L, Liu J. One-step achievement of Fe-doped and interfacial Ru nanoclusters co-engineered Ni(OH) 2 electrocatalyst on Ni foam for promoted oxygen evolution reaction. J Colloid Interface Sci 2023; 638:498-505. [PMID: 36758260 DOI: 10.1016/j.jcis.2023.01.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/30/2022] [Accepted: 01/06/2023] [Indexed: 01/15/2023]
Abstract
The creation of inexpensive, high-performance catalysts to reduce the overpotential of the oxygen evolution reaction (OER) process is critical for the electrolysis of water for hydrogen production. Therefore, we applied a one-step hydrothermal method using cation exchange reaction (CER) to prepare Fe-doped and interfacial Ru nanoclusters co-engineered Ni(OH)2 nanosheets directly grafted on Ni foam (Ru@Fe-Ni(OH)2/NF) for OER process. Results of electrochemical tests reveal that Ru@Fe-Ni(OH)2/NF has excellent OER activity, and its overpotential (η) is only 266.4 mV when the current density is 50 mA cm-2 in 1 M KOH solution, even lower than that of commercial OER catalyst RuO2 (355 mV). The Tafel slope also decreases from 133.8 mV dec-1 for pristine Ni(OH)2/NF material to 24.1 mV dec-1 for Ru@Fe-Ni(OH)2/NF, indicating the higher charge transfer rates and fastest kinetics for water oxidation. At an overpotential of 300 mV the optimal turnover frequency (TOF) of 0.062 s-1 for Ru@Fe-Ni(OH)2/NF is achieved compared to that of Ni(OH)2/NF (0.014 s-1, NN), demonstrating the fast reaction kinetics of the as-prepared electrocatcalyst. After 24 h stability test, the catalytic activity of Ru@Fe-Ni(OH)2/NF was only attenuated by 2 %, showing excellent OER stability and durability. Our results show that we have successfully developed an efficient OER catalyst for green and efficient electrocatalytic hydrolysis to produce H2 and O2, providing a promising method for clean H2 production.
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Affiliation(s)
- Fuguang Liu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao 266071, China
| | - Zhonghan Feng
- College of Materials Science and Engineering, Linyi University, Linyi 276000, Shandong, China
| | - Xinyue Zhang
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao 266071, China
| | - Liang Cui
- College of Materials Science and Engineering, Linyi University, Linyi 276000, Shandong, China.
| | - Jingquan Liu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao 266071, China; College of Materials Science and Engineering, Linyi University, Linyi 276000, Shandong, China.
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Guo Y, Liang Z, Xue Y, Wang X, Zhang X, Tian J. A cation exchange strategy to construct Rod-shell CdS/Cu 2S nanostructures for broad spectrum photocatalytic hydrogen production. J Colloid Interface Sci 2022; 608:158-163. [PMID: 34626963 DOI: 10.1016/j.jcis.2021.09.190] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 12/15/2022]
Abstract
Herein, Cu2S as the outer shell is grown on CdS nanorods (NRs) to construct rod-shell nanostructures (CdS/Cu2S) by a rapid, scalable and facile cation exchange reaction. The CdS NRs are firstly synthesized by a hydrothermal route, in which thiourea as the precursor of sulfur and ethylenediamine (EDA) as the solvent. And then, the outer shells of CdS NRs are successfully exchanged by Cu2S via a cation exchange reaction. The obtained CdS/Cu2S rod-shell NRs exhibit much enhanced activity of hydrogen production (640.95 μmol h-1 g-1) in comparison with pure CdS NRs (74.1 μmol h-1 g-1) and pure Cu2S NRs (0 μmol h-1 g-1). The enhanced photocatalytic activity of CdS/Cu2S rod-shell NRs owns to the following points: i) the photogenerated electrons generated by CdS quickly migrate to Cu2S without any barrier due to rod-shell structure by the in-situ cation exchange reaction, a decreased carrier recombination is achieved; ii) Cu2S as outer shells broaden the light absorption range of CdS/Cu2S rod-shell NRs into visible or even NIR light, which can produce more electrons and holes. This work inspires people to further study the rod-shell structured photocatalyst through the cation exchange strategy to further solar energy conversion.
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Affiliation(s)
- Yichen Guo
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Zhangqian Liang
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Yanjun Xue
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xinyu Wang
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xiaoli Zhang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Jian Tian
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
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Wang X, Chen W, Yang H, Yuan X, Huang K, Chen P, Ying B. Homogeneous assay based on the pre-reduction and selective cation exchange for detection of multiple targets by atomic spectrometry. Talanta 2020; 219:121387. [PMID: 32887089 DOI: 10.1016/j.talanta.2020.121387] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 02/05/2023]
Abstract
In view of the high sensitivity and good selectivity, chemical vapor generation atomic spectrometry (CVG-AS) and inductively coupled plasma mass spectrometer (ICP-MS), especially low-cost atomic fluorescence spectrometry (AFS) have been widely used in bioassay. However, the existing AS method is mostly based on heterogeneous strategies, and can't detect multiple targets in one system. In this study, we present the discovery and mechanism study of a phenomenon of Hg2+ pre-reduction that the concentration of Hg2+ decreased when it was mixed with the reductants (ascorbic acid (AA), SnCl2, or NaBH4/KBH4) over long-time reaction (hours) by CVG-AFS and ICP-MS. A homogeneous Cu2+ assay method was developed based on the competition reaction of Cu2+ and Hg2+ for consuming AA, and its application in the detection of pyrophosphate (PPi) and alkaline phosphatase (ALP) was investigated based on the PPi complexation with Cu2+, and ALP hydrolyzation of PPi using CVG-AFS as a representative detector. Subsequently, in order to further verify the applicability of the system, cation exchange reaction (CER) was utilized here based on the selectively recognize Ag+ and C-Ag+-C by CuS nanoparticles (NPs). As the exchanged Cu2+ from CuS NPs can be sensitively and selectively detected via above-mentioned Cu2+ assay method, this strategy can be extended for the Ag+, DNA and prostate specific antigen (PSA) detection based on base complementary pairing and the specific recognition of aptamer. Under the optimal experimental conditions, the system showed high sensitivity for the detection of Cu2+, PPi, ALP, Ag+, DNA, and PSA, with limit of detections (LODs) of 0.12 nmol L-1, 25 μmol L-1, 0.025 U/L, 0.2 nmol L-1, 0.05 nmol L-1, and 0.03 ng/mL, respectively. The method was successfully used to determination Cu2+, ALP, and PSA in human serums, showing similar results with those of ICP-MS and kits methods.
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Affiliation(s)
- Xiu Wang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China
| | - Wanli Chen
- College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637000, China
| | - Haiyan Yang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China
| | - Xin Yuan
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Ke Huang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China.
| | - Piaopiao Chen
- Department of Laboratory Medicine, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, 610041, China.
| | - Binwu Ying
- Department of Laboratory Medicine, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, 610041, China.
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