Efficient visible-light-driven reduction of hexavalent chromium catalyzed by conjugated organic species modified hourglass-type phosphomolybdate hybrids

Abstract

The exploration of stable and efficient visible-light-driven photocatalyst for wastewater treatment has been recognized as one of the most challenging issues in environmental remediation. To reveal the structure-activity relationship of...

Visible-Light-Responsive 2D Photocatalysts Assembled by Evans–Showell-Type POMs and Metalloviologen Frameworks for Sulfide–Sulfoxide Transformation

“…The difference in the reactivity of both compounds originates from the difference of metal cations. The examples of different metal cations producing different catalytic activities have been reported in previous literature studies. ,− The performance gap between 1 and 2 was also consistent with the above photoelectrochemical analyses. To better elucidate the electron–hole pair separation properties of 1 and 2 , the transient photocurrent, steady-state photoluminescence spectroscopy, and decay lifetime were performed.…”

Structure-induced selective adsorption of diverse dyes and Cr(vi) photoreduction using two new polyoxometalate-based metal–viologen complexes

“…26,27 For example, Han's group studied {P 4 Mo 6 }-based complexes with suitable structure and broad light absorption capacity, and applied them to the photocatalytic reduction of Cr( vi ). 28,29 However, studies on the systematic investigation of POMOCs with both adsorption and photocatalytic properties to solve the problem of organic dye and heavy metal pollution are rare. In view of the above analysis and advantages of POMOCs, it is promising to design and synthesize POMOCs with both adsorption and photocatalytic properties for treating pollutants in wastewater.…”

Solid-state supercapacitors based on polyoxometalate-based crystalline materials modified with polyaniline

“…POM-based complexes can maintain structural stability, allowing for reversible electron transfer, which has emerged as a promising class of electrode materials. [20][21][22][23][24][25][26][27][28][29] The above features enable POM-based complexes as electrode materials to effectively improve the electrochemical performance of SCs. The promising electrochemical performance of POM-based complexes may be attributed to four main reasons: (i) these complexes contain polyanions, which endow them with excellent redox properties; (ii) POM-based complexes with three-dimensional framework structure may facilitate electronic transport; (iii) POM-based complexes possess lower solubility in water and organic solvents, which is attributed to the synthetic methods and the presence of metal-POM bonds; 14 (iv) the introduction of metal ions and N-based organics can modulate the conductivity and rate capability, and enhance the stability in the process of charge/discharge.…”