TY - JOUR
T1 - Cadmium sulfide inverse opal for photocatalytic hydrogen production
AU - Zhang, Ruolan
AU - Wang, Chao
AU - Chen, Hao
AU - Zhao, Heng
AU - Liu, Jing
AU - Li, Yu
AU - Su, Baolian
N1 - Funding Information:
This work is supported by National Key R&D Program of China (2016YFA0202602), National Natural Science Foundation of China (U1663225, 21671155, 21805220), Natural Science Foundation of Hubei Province, China (2018CFB242, 2018CFA054), Major Programs of Technical Innovation in Hubei, China (2018AAA012), Program for Changjiang Scholars Innovative Research Team in University, China (IRT_15R52).
Funding Information:
Received: March 5, 2019; Revised: March 26, 2019; Accepted: April 9, 2019; Published online: April 12, 2019. *Corresponding author. Email: yu.li@whut.edu.cn; Tel.: +86-27-87884448. This work is supported by National Key R&D Program of China (2016YFA0202602), National Natural Science Foundation of China (U1663225, 21671155, 21805220), Natural Science Foundation of Hubei Province, China (2018CFB242, 2018CFA054), Major Programs of Technical Innovation in Hubei, China (2018AAA012), Program for Changjiang Scholars Innovative Research Team in University, China (IRT_15R52). 国家重点研发计划(2016YFA0202602),国家自然科学基金(U1663225, 21671155, 21805220), 湖北省自然科学基金(2018CFB242, 2018CFA054), 湖北 省技术创新专项重大项目(2018AAA012)和教育部长江创新团队(IRT_15R52)资助项目
Publisher Copyright:
© Editorial office of Acta Physico-Chimica Sinica.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Photocatalysis based on visible light is an efficient and promising strategy to convert solar energy into chemical energy and solve the global issues of environmental pollution and energy shortages. CdS, as a visible light responsive semiconductor material, is widely used in photocatalysis and photoluminescence because of its simple synthesis, abundant raw materials, and appropriate bandgap structure. The inverse opal (IO) structure belonging to photonic crystal structure with unique threedimensionally ordered macro-mesopore, which can tune the propagation direction of incident light and improve photocatalytic performance. Therefore, IO has attracted extensive attention for photocatalysis applications. Herein, CdS IO photonic crystal films were prepared by co-assembly using CdS nanocrystals and poly(styrene-methyl methacrylate-3-sulfopropyl methacrylate, potassium salt) (P(St-MMA-SPMAP)) emulsion. This method is widely used because it is simple and can rapidly prepare large photonic crystal films. The pore size of the IO structure was regulated by changing the diameter of the polymer. The IO structure was characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), ultraviolet-visible absorption spectroscopy (UV-Vis), and reflectance spectroscopy. The photocatalysis performance of three samples was evaluated via photocatalytic water splitting under visible light irradiation (λ ≥ 420 nm). The photocatalytic hydrogen production rate of the CdS IO film fabricated using a 310 nm P(St-MMA-SPMAP) template (CdS-310) was twice that of CdS nanoparticles (CdS-NPs) under visible light irradiation. This photocatalytic performance enhancement was ascribed to the hierarchically porous structure of the IO photonic crystal. On the one hand, the IO structure increased the propagation of photons in the photocatalytic material and improved sunlight utilization. On the other hand, the structure is conductive to transport and adsorption of molecules. In addition, the IO structure was composed of nanoparticles, providing more active sites for the photocatalytic reaction.
AB - Photocatalysis based on visible light is an efficient and promising strategy to convert solar energy into chemical energy and solve the global issues of environmental pollution and energy shortages. CdS, as a visible light responsive semiconductor material, is widely used in photocatalysis and photoluminescence because of its simple synthesis, abundant raw materials, and appropriate bandgap structure. The inverse opal (IO) structure belonging to photonic crystal structure with unique threedimensionally ordered macro-mesopore, which can tune the propagation direction of incident light and improve photocatalytic performance. Therefore, IO has attracted extensive attention for photocatalysis applications. Herein, CdS IO photonic crystal films were prepared by co-assembly using CdS nanocrystals and poly(styrene-methyl methacrylate-3-sulfopropyl methacrylate, potassium salt) (P(St-MMA-SPMAP)) emulsion. This method is widely used because it is simple and can rapidly prepare large photonic crystal films. The pore size of the IO structure was regulated by changing the diameter of the polymer. The IO structure was characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), ultraviolet-visible absorption spectroscopy (UV-Vis), and reflectance spectroscopy. The photocatalysis performance of three samples was evaluated via photocatalytic water splitting under visible light irradiation (λ ≥ 420 nm). The photocatalytic hydrogen production rate of the CdS IO film fabricated using a 310 nm P(St-MMA-SPMAP) template (CdS-310) was twice that of CdS nanoparticles (CdS-NPs) under visible light irradiation. This photocatalytic performance enhancement was ascribed to the hierarchically porous structure of the IO photonic crystal. On the one hand, the IO structure increased the propagation of photons in the photocatalytic material and improved sunlight utilization. On the other hand, the structure is conductive to transport and adsorption of molecules. In addition, the IO structure was composed of nanoparticles, providing more active sites for the photocatalytic reaction.
KW - CdS
KW - Inverse opal
KW - Nanomaterials
KW - Photocatalytic hydrogen production
KW - Photonic crystal
UR - http://www.scopus.com/inward/record.url?scp=85081208160&partnerID=8YFLogxK
U2 - 10.3866/pku.whxb201803014
DO - 10.3866/pku.whxb201803014
M3 - Article
AN - SCOPUS:85081208160
SN - 1000-6818
VL - 36
JO - Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica
JF - Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica
IS - 3
M1 - 1803014
ER -