Surfaces and Interfaces
·
2024
·
IF 5.7
Jiajia Cai,Yongjun Li,Zhengxin Cai,Xiangxuan Tang,Zhi Zhang,Jianmin Wang,Qian Xie,Pengyan Zhang,Song Li
Photocathodic protection (PCP) can convert solar energy into protecting marine metallic structures from corrosion. However, the serious photocarrier recombination in the photoanode has hindered the development of the PCP technique. This study reported a feasible approach to construct the heterojunction with a tunable built-in electric field by epitaxially growing CdIn 2 S 4 (CIS) on the surface of WO 3 . The light absorbance, carrier separation, and transportation were found to be strongly dependent on the built-in field, and it would enable not only protection of the 304SS but also retard the corrosion of more vulnerable Q235. Accordingly, the OCP of coupled photoelectrode shifted to -950 and -880 mV Ag/AgCl for 304SS and Q235, and their photocurrent density also reached 100 and 170 μA/cm 2 , respectively. Notably, the PCP performance of anti-corrosion on the 304SS and Q235 was visualized by microscopy, further proving the effectiveness of the photoanode. The underlying mechanisms and different protection capabilities were discussed in detail.
研究领域:
材料科学
·
腐蚀与防护
·
能源转换
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Xiaohui Ma,Wenjun Li,Hongda Li,Mei Dong,Liang Geng,Tianyu Wang,Hualei Zhou,Yanyan Li,Mengchao Li
Constructing heterojunctions is an effective and controllable approach that can boost the activity of photocatalysts. Inspiringly, this study explored a simple method that can be used to construct novel noble-metal-free Co 2 P/CdIn 2 S 4 (CPCIS) heterojunction photocatalysts for photocatalytic hydrogen production. The heterojunction was formed by loading CdIn 2 S 4 (CIS) nanoparticles on the surface of Co 2 P (CP). The structure, morphology, and optical property of the as-prepared samples were characterized by a series of tests. The DRS results showed that, the light absorption range of CPCIS was extended to the full visible light range and its light absorption intensity obviously was enhanced at 500–800 nm. The PL and photoelectrochemical tests manifested that the formed heterojunction promoted the separation of charges. The LSV results indicated that CP reduced the H 2 evolution overpotential of the composites. Besides, CP could serve as active sites of H 2 evolution in heterojunction composites. Interestingly, the H 2 -evolution rate for the optimum CPCIS (471.87 μmol h −1 g −1 ) was around 3.6 times than CIS-Pt. The elevated activity of CPCIS may mainly attribute to the following aspects: its enhanced light absorption, elevated charge separation and increased active site. More importantly, the photocatalytic activity of heterojunction composites didn’t almost decrease after three cycles. This article delivers an idea that can be applied to form heterojunctions between CP and other sulfides for photocatalytic H 2 production, easily extending to other transition metal phosphides.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2018
·Vol. 10
·期 16
·7860-7870
·
IF 7.233
Dandan Ma,Jian-Wen Shi,Yajun Zou,Zhaoyang Fan,Jinwen Shi,Linhao Cheng,Diankun Sun,Zeyan Wang,Chunming Niu
A novel flower-like In2S3/CdIn2S4/In2O3 (ICS) ternary heterostructure (HS) is rationally constructed for the first time by a series of carefully designed procedures. In2O3 nanoflakes are the main constituent units which assemble into a flower-like skeleton structure, and CdIn2S4 nanoparticles are in situ generated on the surface of In2O3 nanoflakes through the transformation of CdS quantum dots (QDs) while In2S3 nanoparticles are in situ produced at the region between CdIn2S4 nanoparticles and In2O3 nanoflakes resulting from a synchronous sulfuration procedure. As expected, the rationally designed ICS ternary HSs display significantly enhanced photocatalytic H2 production, especially ICS5 (sulfurized for 5 h) with the highest H2 evolution rate of 20.04 μmol h−1 (10 mg catalyst is used for photocatalytic reaction), which is 26.7 times and 2.6 times higher than that of pure In2O3 (0.75 μmol h−1) and In2S3/In2O3 binary HS (7.88 μmol h−1), respectively. The enhanced photocatalytic activity can be attributed to the multiple interfaces formed in the ICS HSs, including the CdIn2S4–In2O3 interface, the In2S3–In2O3 interface, and the CdIn2S4–In2O3–In2S3 interface, which construct multiple pathways for the transfer of photogenerated charge carriers, effectively promoting the photocatalytic hydrogen production.
研究领域:
材料科学
·
化学
·
纳米技术
·
光催化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 11
·5546-5554
·
IF 3.3
Wenwen Yang,Shan-Shan Xu,Yawen Niu,Yanhui Zhang,Jian-Feng Li,Juan Xu
As a member of the ternary sulfides, CdIn2S4 is a visible light responded catalyst with a band gap of 2.2–2.6 eV, which is suitable for solar spectrum. In this study, a simple two-step solvothermal method was used to construct Ni12P5/In(OH)3/CdIn2S4 composite catalysts with type-II and Z-scheme heterojunctions, and there was a synergy between the two heterojunctions. The Ni12P5/In(OH)3/CdIn2S4 composite catalyst formed a donor-mediator-acceptor system for photogenerated electrons, which greatly improved the separation efficiency of the photogenerated carriers. Moreover, the highest hydrogen production activity achieved by the Ni12P5/In(OH)3/CdIn2S4 composites was 5.75 mmol g−1 h−1, which was 21 times the original CdIn2S4.
研究领域:
材料科学
·
催化
·
光催化
·
能源材料
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2024
·
IF 5.8
Jingwen Sun,Shangling Han,Fanglei Yao,Ruixin Li,Chenchen Fang,Xiaoyuan Zhang,Yaya Wang,Xuefeng Xu,Di Wu,Kai Liu,Pan Xiong,Junwu Zhu
Construction of built-in electric field has been identified as an attractive improvement strategy in terms of photoelectrochemical (PEC) water splitting by facilitating the carriers extraction from the inside to the surface. However, the promotion effect of the electric field is still restrained by the confined built-in area. Herein, we construct a microscale built-in electric field via the gradient oxygen doping. Octahedral configuration of the synthesized CdIn2S4 (CIS) behaves as a structural basis, which enables the subsequent oxygen doping poking to the depth of ~100 nm. Accordingly, oxygen doped CIS (OCIS) photoanode exhibits a microscale built-in electric field with the band bending. An excellent PEC catalytic activity with a photocurrent density of 3.69 mA/cm2 at 1.23 V vs RHE is achieved by OCIS, which is 3.1 times higher than that of CIS. Combining the results of sufficient characterizations and theoretical calculation, accelerating migration and separation of charge carriers has been determined as the essential encouragement. Meanwhile, probable recombination risk at the doping centers has also been reduced to the minimum via optimal experiments. This work provides a new generation idea of build-in electric field from the view point of bulky configuration towards PEC water splitting.
研究领域:
材料科学
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光电化学
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纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2021
·Vol. 27
·期 45
·11589-11599
·
IF 5.236
Yuying Yang,Zhuoyuan Chen,Chang Feng,Jiangping Jing
Graphical Photo-electrochemical cathodic protection technology is considered to be a green metallic corrosion protection technology that uses solar energy to protect against corrosion without consuming any anode materials. A CdIn 2 S 4 /WO 3 nanosheet composite film with electron self-storage properties was synthesized and used as a photoelectrode to couple with metallic materials to provide photo-electrochemical cathodic protection under light illumination and continuing cathodic protection in the dark. This research will promote the practical application of photo-electrochemical cathodic protection technology. Photo-electrochemical cathodic protection (CP) technology is considered to be a green metallic corrosion protection technology that uses solar energy to protect from corrosion and does not consume any anode materials. In this work, a CdIn 2 S 4 /WO 3 nanocomposite photoelectrode was prepared, and its photo-electrochemical CP performance and mechanism were studied and analyzed. WO 3 has a well band matching with CdIn 2 S 4 , leading to a significantly enhanced photo-electrochemical CP performance of the nanocomposite. Meanwhile, as confirmed in this work, the CdIn 2 S 4 /WO 3 nanocomposite can store photoinduced electrons under light illumination through intercalation reactions and changing the valence state of tungsten. Moreover, it can discharge in the dark state to provide continuous CP for the coupled metals. This research will promote the practical application process of the photo-electrochemical CP technology.
研究领域:
材料科学
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电化学
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腐蚀科学
·
可再生能源
✓ 已验证
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Chen Yang,Hongyan Zhang,Zhenhong Jia,Chu Chen,Haiyang Zhang,Xudong Li,Xiujuan Ma
A high-performance acetone gas sensor based on CdS/CdIn 2 S 4 (CISS) heterojunction was constructed by hydrothermal method, and the sensing mechanism of CdS on acetone adsorption was investigated through first-principles calculations grounded in density functional theory (DFT). Calculated results show that surface sulfur vacancies on the CdS facilitates the adsorption of acetone molecules, which due to the sulfur vacancy can expose a large number of Cd atoms, allowing the d electrons in the Cd atoms to participate in orbital hybridization with the p electrons in the acetone molecule. The more electrons involved in the hybridization, the higher the adsorption energy for acetone molecule. Experimental results show that the CISS2 sensor has a high response of 1350.45 for 1000 ppm acetone with good selectivity and repeatability. Furthermore, CISS2 sensor has a fast response/recovery time (13.1 s/1.85 s) to 10 ppm acetone at room temperature and achieves a low detection limit of 175 ppb. In addition, CISS2 sensor can distinguish normal people and diabetic patients by detecting the difference in acetone concentration in breath, indicating that the CdS/CdIn 2 S 4 gas sensor has potential applications in the field of personal medical services.
研究领域:
材料科学
·
医学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
Catalysis Science & Technology
·
2023
·Vol. 13
·期 20
·5892-5901
·
IF 5
Jifang Cui,Zhihao Yu,Linhao Sun,Ming Zhang,Mengyan Guo,Jian Xiong,Yina Qiao,Rui Zhang,Xuebin Lu
Selective photocatalytic oxidation rather than mineralisation is essential for the catalytic valorisation of biomass, which requires precise control of the generation of reactive oxygen species via the rational construction of heterogeneous junctions. In this paper, CdIn2S4/g-C3N4 (CIS/CNNS) heterojunctions were constructed by a microwave-assisted method and used for selective photocatalytic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF), a key intermediate for fine chemical synthesis and an important furan-based polymer monomer. According to the electron transfer mechanism of the heterojunctions, the effective separation of charges and holes led to a significant enhancement of the utilization efficiency of photogenerated electrons (PGEs). Specifically, the valence band (VB) potential of the constructed heterojunctions did not reach the oxidation potential of ˙OH/OH−, which avoided the massive generation of strongly oxidizing active species ˙OH and thus increased the reaction selectivity. Under visible light irradiation, 65.2% HMF conversion and 91.5% DFF selectivity could be achieved over CIS/CNNS, with a product yield 3.26 times higher than monomeric CdlIn2S4 and 4.2 times higher than monomeric CNNS. The radical quenching experiments verified that ˙O2− was the predominant active species in the reaction process, and the ˙O2− signal of the composite was significantly enhanced in the ESR characterization, achieving highly selective conversion of HMF to DFF.
研究领域:
化学工程
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Xi Tang,Yilin Wang,Zhifang Liu,Maoheng Fei,Ronghuan Gao,Yixi Xie,Xiayi Hu,Pengcheng Zhao,Junjie Fei
Characterized by high toxicity and difficult degradation, m-nitrophenol (3-NP) is an environmental pollutant that endangers the environment and biological systems. Therefore, the development of analytical techniques for the detection of low concentrations of 3-NP is critical for the environment and human health. In this work, spherical CdIn 2 S 4 and tiny ZnS particles were prepared by a hydrothermal method , and the Z-type ZnS/CdIn 2 S 4 heterojunction material was obtained by ultrasonically assembling ZnS onto CdIn 2 S 4 . The Z-type ZnS/CdIn 2 S 4 heterojunction possesses a better photocurrent response and a good electron transport capacity, and it can efficiently separate the photogenerated electron-hole pairs. Therefore, a photoelectrochemical sensor for accurate detection of 3-NP in water was constructed based on the Z-type ZnS/CdIn 2 S 4 heterostructure. The sensor has a detection range from 5 × 10 −12 M to 1 × 10 −8 M and an extremely low limit of detection (1.28 ×10 −12 M), which is rare among other sensors. Meanwhile, the sensor showed excellent performance in real samples, indicating that it can effectively monitor 3-NP in real water samples. The validation of the sensor using UV–visible spectra also yielded satisfactory results.
研究领域:
环境分析化学
·
材料科学
·
分析化学
·
光催化
·
传感器技术
✓ 已验证
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Min Wang,Yanling Chen,Yijin Huang,Li Hou,Shulin Zhao,Tianran Lin
In this study, Ag-CdIn 2 S 4 was selected as a photosensitive material and combined with the zeolite imidazole frame-90 encapsulated methylene blue (ZIF-90@MB) to establish a controlled release system. On that basis, a self-powered photoelectrochemical (PEC) aptasensor was constructed based on target responses to realize the highly sensitive detection of prostate-specific antigen (PSA). The self-powered sensing method was employed to effectively avoid interference from other oxidizing/reducing substances in the system and improve the accuracy of the detection method. The band gap of CdIn 2 S 4 was adjusted by Ag doping, and the visible light absorption capacity and photoelectric conversion efficiency of the material were improved by the local surface plasmon resonance (LSPR) effect of metal Ag. The ZIF-90 porous material was used as a carrier, the MB photosensitizer as a signal molecule was loaded in the ZIF-90 pore channel. The PSA aptamer (PApt) was attached to the ZIF-90@MB surface to form a simple biological gate. In the presence of the PSA, the recognition interaction between PApt and PSA made the biological gate open, then many MB molecules were released from ZIF-90 and enhanced the photocurrent signal. Under the optimal experimental conditions, the linear range of the sensor was 0.005 ∼ 50 ng mL −1 , and the detection limit was 2.35 pg mL −1 . The accurate determination of PSA in human serum was achieved, which provided a novel sensing strategy for the early diagnosis of clinical biomarkers.
研究领域:
生物医学工程
·
分析化学
·
纳米材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACTA PHYSICO-CHIMICA SINICA
·
2025
·
IF 13.5
Yi Yang,Xin Zhou,Miaoli Gu,Bei Cheng,Zhen Wu,Jianjun Zhang
Photocatalytic hydrogen peroxide (H 2 O 2 ) production is a crucial process for clean energy conversion, involving the reduction of O 2 through two electrons. However, this process is often hampered by the sluggish water oxidation involving the photogenerated holes. To address this challenge, we have constructed a dual-functional S-scheme ZnO/CdIn 2 S 4 heterojunction systerm coupling the H 2 O 2 generation with a value-added benzylamine (BA) oxidation reaction. In this dual-functional photocatalytic system, photogenerated electrons in CdIn 2 S 4 efficiently reduce O 2 to produce H 2 O 2 , while photogenerated holes in ZnO selectively oxidize BA to N-benzylidenebenzylamine. Leveraging the advantages of the S-scheme heterojunction, the optimized ZnO/CdIn 2 S 4 photocatalyst displays an enhanced H 2 O 2 production rate (386 μmol·L −1 ·h −1 ) and BA oxidation fraction (81%) than pure ZnO or CdIn 2 S 4 . Femtosecond transient absorption (fs-TA) spectroscopy confirm the ultrafast S-scheme electron transfer from the ZnO conduction band (CB) to the CdIn 2 S 4 valence band (VB) upon photoexcitation of the ZnO/CdIn 2 S 4 composite. Besides, timely depletion of VB holes in ZnO and CB electrons in CdIn 2 S 4 can accelerate the interfacial electron transfer in the ZnO/CdIn 2 S 4 S-scheme heterojunction. The innovative design of the ZnO/CdIn 2 S 4 S-scheme photocatalyst provides new insights for developing efficient dual-functional heterojunction photocatalytic systems and introduces a novel method for studying S-scheme heterojunctions using fs-TA spectroscopy.
研究领域:
光催化
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2016
·
IF 5.267
Xi Chen,Li Li,Wenzhi Zhang,Yixuan Li,Qiang Song,Li Dong
The photocatalyst CuS/CdIn2S4/ZnIn2S4 with attractive visible light absorption was prepared by a microwave-assisted one-step method and then characterized by XRD, XPS, UV–vis/DRS, N2 adsorption–desorption, SEM, TEM, and HRTEM tests. The results show that there are two kinds of crystal structures, hexagonal and cubic phase, in the product. Moreover, the composite has an absorption edge as high as 670 nm with a high visible light response. In addition, the composite possesses an excellent surface area of 239.3 m2/g, displays a favorable globular flower-like surface morphology, and consists mostly of three disparate shapes of crystals in the microstructure. Compared to heterogeneous ZnIn2S4 and P25, as-prepared composite demonstrates the greatest photocatalytic activity under simulated sunlight and visible light by methyl orange degradation. Together with Pt loading as a cocatalyst, hydrogen was achieved over CuS/CdIn2S4/ZnIn2S4 in Na2S–Na2SO3 aqueous solution, leading to a hydrogen production rate of 358.4 μmol·h–1·g–1 under simulated sunlight and a high hydrogen production rate of 233.9 μmol·h–1·g–1 under visible light (λ > 420 nm). Additionally, the related formulas were utilized to calculate the semiconductor energy band configuration and speculate on the possible photoreaction mechanism of CuS/CdIn2S4/ZnIn2S4. Finally, the effect of multipathway photoinduced charge migration during photocatalysis process was explained.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）