Visible-light-driven sonophotocatalysis for enhanced Cr(<scp>vi</scp>) reduction over mixed-linker zirconium-porphyrin MOFs

Liu, Wenhao; Guo, Zhifen; Jin, Zhi; Chen, Dashu; Lü, Teng; Jia, Peiyun; Xing, Hongzhu

doi:10.1039/d1cy02346b

Cited by 25 publications

(16 citation statements)

References 69 publications

(75 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two mixed-linker Zr-porphyrin MOFs, PCN-134 and PCN-138, were synthesized using tetratopic TCPP (trakis(4-carboxyphenyl)porphyrin) ligand and tritopic ligands of BTB (benzene tribenzoate) and TBTB (4,4′,4″-(2,4,6-trimethylbenzene-1,3,5-triyl)tribenzoate)) Figure illustrates the synthetic pathway, topology, and 3D networks of the MOFs.…”

Section: Recent Progress In Mof-based Photocatalystsmentioning

confidence: 99%

Section: Recent Progress In Mof-based Photocatalystsmentioning

confidence: 99%

“…Two mixed-linker Zr-porphyrin MOFs, PCN-134 and PCN-138, were synthesized using tetratopic TCPP (trakis(4carboxyphenyl)porphyrin) ligand and tritopic ligands of BTB (benzene tribenzoate) and TBTB (4,4′,4″-(2,4,6-trimethylbenzene-1,3,5-triyl)tribenzoate)). 42 (VI) . The average reduction rates of 0.237 and 0.266 mg L −1 min −1 were found for PCN-134 and PCN-138, respectively under ultrasonic irradiation (20 kHz, 120 W), which were faster than those in the absence of sonication (0.074 and 0.115 mg L −1 min −1 for PCN-134 and PCN-138, respectively).…”

Section: Recent Progress In Mof-based Photocatalystsmentioning

confidence: 99%

See 2 more Smart Citations

Recent Progress in the Development of MOF-Based Photocatalysts for the Photoreduction of Cr^(VI)

Jafarzadeh

2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

There has been a direct correlation between the rate of industrial development and the spread of pollution on Earth, particularly in the last century. The organic and inorganic pollutants generated from industrial activities have created serious risks to human life and the environment. The concept of sustainability has emerged to tackle the environmental issues in developing chemical-based industries. However, pollutants have continued to be discharged to water resources, and finding appropriate techniques for the removal and remedy of wastewater is in high demand. Chromium is one of the high-risk heavy metals in industrial wastewaters that should be removed via physical adsorption and/or transformed into less hazardous chemicals. Photocatalysis as a sustainable process has received considerable attention as it utilizes sunlight irradiation to remedy Cr(VI) via a cost-effective process. Numerous photocatalytic systems have been developed up to now, but metal–organic frameworks (MOFs) have gained growing attention because of their unique versatilities and facile structural modulations. A variety of MOF-based photocatalysts have been widely employed for the photoreduction of Cr(VI). Here, we review the recent progress in the design of MOF photocatalysts and summarize their performance in photoreduction reactions.

show abstract

Section: Recent Progress In Mof-based Photocatalystsmentioning

confidence: 99%

Section: Recent Progress In Mof-based Photocatalystsmentioning

confidence: 99%

Section: Recent Progress In Mof-based Photocatalystsmentioning

confidence: 99%

See 1 more Smart Citation

Recent Progress in the Development of MOF-Based Photocatalysts for the Photoreduction of Cr^(VI)

Jafarzadeh

2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Besides, the utilization of photogenerated charges for MOFs can be dramatically promoted through the synergism of sonophotocatalysis. Hence, a Cr(VI) photoreduction system is expected to be further improved by the combination of photoactive MOFs and sonophotocatalysis. , In this work, we successfully synthesized and characterized four isostructural titanium–porphyrin MOFs; the prepared MOFs are denoted as DGIST-1(M): DGIST-1(H 2 ), DGIST-1(Zn), DGIST-1(Fe), and DGIST-1(Co). When employed as catalysts, the four synthesized titanium–porphyrin MOFs showed enhanced photoreduction performances for Cr(VI) conversion in the sonophotocatalytic process.…”

Section: Introductionmentioning

confidence: 99%

Titanium–Porphyrin Metal–Organic Frameworks as Visible-Light-Driven Catalysts for Highly Efficient Sonophotocatalytic Reduction of Cr(VI)

2022

Self Cite

View full text Add to dashboard Cite

In this work, we synthesized and characterized four titanium−porphyrin metal−organic frameworks (MOFs) [DGIST-1(M), M = Co(II), Fe(III), Zn(II), and H 2 ] and used them as visiblelight-driven catalysts for sonophotocatalytic Cr(VI) reduction. DGIST-1(M) exhibited open-framework, broad light absorption stemmed from ligand and sensitive photocurrent responses owing to the integration of one-dimensional Ti-oxo chains and 4-connected conjugated TCPP ligand (TCPP = tetrakis(4-carboxyphenyl)porphyrin). DGIST-1(M) presented efficient reduction of Cr(VI) to Cr(III) in aqueous solution when used as sonophotocatalytic catalysts. The average reduction rates upon Cr(VI) were 0.920, 0.476, 0.377, and 0.194 mg•L −1 •min −1 for DGIST-1(H 2 ), DGIST-1(Zn), DGIST-1(Co), and DGIST-1(Fe), which are 1.15−2.45 times higher than those in photocatalysis. Sonophotocatalytic experiments and electron paramagnetic resonance measurement proved that Ti-oxo chain units and porphyrin ligand in the structures of DGIST-1(M) existed as catalytic active centers for sonophotocatalytic reduction of Cr(VI). Photoluminescence and UV absorption spectra revealed that the unity of photocatalysis and sonochemistry strengthened the migration of photogenerated electrons from DGIST-1(M) to Cr(VI), which improved the activities of catalysts. This study suggested that the association of titanium−porphyrin MOFs and sonophotocatalytic technology is an impactful program for enhancing MOF-based photocatalytic systems.

show abstract

“…7 Recently, metal–organic frameworks (MOFs) have been widely considered to be the best choice of cocatalyst because of their special structure, such as the co-existence of organic ligands and metal centers, flexible design and abundant active sites. 8 For the intrinsic properties of MOFs, on the one hand, organic ligands with good tunability can be used as a functional region for storing electrons called the electron library. On the other hand, the metal centers can act as surface-active sites.…”

Section: Introductionmentioning

confidence: 99%

Adjusting the match-degree between electron library and surface-active sites and forming surface polarization in MOF-based photo-cocatalysts for accelerating electron transfer

Ding¹,

Sun²,

Yu³

et al. 2022

Catal. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Visible-light-driven sonophotocatalysis for enhanced Cr(vi) reduction over mixed-linker zirconium-porphyrin MOFs

Abstract: In this study, we synthesized and characterized two mixed-linker zirconium-porphyrin metal-organic frameworks, PCN-134 and PCN-138 which constructed from tetratopic light harvesting TCPP ligand and tritopic BTB/TBTB ligand (TCPP = trakis(4-carboxyphenyl)porphyrin),...

Cited by 25 publications

References 69 publications

Recent Progress in the Development of MOF-Based Photocatalysts for the Photoreduction of Cr^(VI)

Recent Progress in the Development of MOF-Based Photocatalysts for the Photoreduction of Cr^(VI)

Titanium–Porphyrin Metal–Organic Frameworks as Visible-Light-Driven Catalysts for Highly Efficient Sonophotocatalytic Reduction of Cr(VI)

Adjusting the match-degree between electron library and surface-active sites and forming surface polarization in MOF-based photo-cocatalysts for accelerating electron transfer

Contact Info

Product

Resources

About

Visible-light-driven sonophotocatalysis for enhanced Cr(vi) reduction over mixed-linker zirconium-porphyrin MOFs

Abstract: In this study, we synthesized and characterized two mixed-linker zirconium-porphyrin metal-organic frameworks, PCN-134 and PCN-138 which constructed from tetratopic light harvesting TCPP ligand and tritopic BTB/TBTB ligand (TCPP = trakis(4-carboxyphenyl)porphyrin),...

Cited by 25 publications

References 69 publications

Recent Progress in the Development of MOF-Based Photocatalysts for the Photoreduction of Cr(VI)

Recent Progress in the Development of MOF-Based Photocatalysts for the Photoreduction of Cr(VI)

Titanium–Porphyrin Metal–Organic Frameworks as Visible-Light-Driven Catalysts for Highly Efficient Sonophotocatalytic Reduction of Cr(VI)

Adjusting the match-degree between electron library and surface-active sites and forming surface polarization in MOF-based photo-cocatalysts for accelerating electron transfer

Contact Info

Product

Resources

About

Recent Progress in the Development of MOF-Based Photocatalysts for the Photoreduction of Cr^(VI)

Recent Progress in the Development of MOF-Based Photocatalysts for the Photoreduction of Cr^(VI)