Copper phthalocyanine modified hydrogel inverse opal beads for enhanced photocatalytic removal of dyes

Shen，Fengtong1; Wang，Jingzhen1; Wang，Libin1; Zang，Linlin2; Xu，Qing1; Sun，Liguo1; Zhang，Yanhong1

2023

10.1039/d3ta00699a

Journal of Materials Chemistry A   影响因子和分区

2050-7488

2050-7496

Photocatalysis is considered as a promising technology for dye wastewater remediation. Due to their excellent hydrophilicity, optical transparency and abundant functional groups, various hydrogel-based catalysts have been developed for photocatalytic degradation of pollutants, but their light absorption efficiency and photocatalytic kinetics still need to be further improved. Herein, we use assembled silica microspheres as sacrificial templates and infuse monomers within the pores for UV polymerization to form poly (acrylamide-acrylic acid copolymer) hydrogel inverse opal beads (PACA HIOBs). The slow light effect of the inverse opal structure can increase the contact time between the catalyst and visible light, thereby enhancing the light absorption and utilization efficiency. The ordered porous scaffold provides more active sites for copper phthalocyanine (CuPc) loading to further improve the separation efficiency of photoexcited electron-hole pairs. Under light irradiation, CuPc-PACA HIOBs exhibit superior degradation efficiency and kinetics for anionic dyes in pore-confined water, and ·O acts as the dominant reactive oxygen species in the photocatalytic process. Moreover, CuPc-PACA HIOBs can be used as an indicator to reveal the degradation process of dyes based on the colour change of the photonic crystal. This work presents a strategy for constructing hydrogel-based catalysts with enhanced photodegradation performance and broadens their application in water treatment.

SCI ; EI

英语

通讯

National Natural Science Foundation of China[51973051] ; Heilongjiang Natural Science Foundation Project[LH2020E107]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000976426300001

ROYAL SOC CHEMISTRY

20231814037682

Acrylic monomers ; Amides ; Catalysts ; Copper ; Degradation ; Dyes ; Field effect transistors ; Hydrogels ; Light absorption ; Rate constants ; Scaffolds ; Silica

Construction Equipment:405.1 ; Copper:544.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Light/Optics:741.1 ; Colloid Chemistry:801.3 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Production Engineering:913.1

2-s2.0-85153937943

Scopus

1.School of Chemical Engineering and Materials,Heilongjiang University,Harbin,150080,China
2.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Shen，Fengtong,Wang，Jingzhen,Wang，Libin,et al. Copper phthalocyanine modified hydrogel inverse opal beads for enhanced photocatalytic removal of dyes[J]. Journal of Materials Chemistry A,2023,11(19).

Shen，Fengtong.,Wang，Jingzhen.,Wang，Libin.,Zang，Linlin.,Xu，Qing.,...&Zhang，Yanhong.(2023).Copper phthalocyanine modified hydrogel inverse opal beads for enhanced photocatalytic removal of dyes.Journal of Materials Chemistry A,11(19).

Shen，Fengtong,et al."Copper phthalocyanine modified hydrogel inverse opal beads for enhanced photocatalytic removal of dyes".Journal of Materials Chemistry A 11.19(2023).