Development and study of a bifunctional photocatalyst based on SAPO-34 molecular sieve

Wang, Runquan; Chen, Wanping; Zhang, Yuerong; Song, Kai; Tian, Yuan; Li, Jiaxian; Shi, Gaofeng; Wang, Guoying

doi:10.1039/d3nj00087g

Cited by 3 publications

(1 citation statement)

References 62 publications

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“…The SAPO-34 molecular sieve has a large speci c surface area [1,2], well-developed pores, and abundant active sites [3], and has been widely used in catalytic oxidation [4][5][6].In recent years, in order to overcome the problem that SAPO-34 molecular sieve is easy to accumulate carbon in the catalytic process due to the complex pore structure [7][8][9][10], its pore structure can be changed by introducing other elements. For example, the precious metal Bi is introduced into the skeleton structure of SAPO-34 [11][12][13], so that it participates in the composition of the pore structure of SAPO-34 molecular sieve [14][15][16]. Meanwhile, Bi element itself has diverse valence states and surface plasmon resonance (SPR) effect, and this doping method makes the prepared molecular sieve possess certain photoresponse and accelerate the charge mobility in photocatalytic reaction, thus improving the e ciency of photocatalyst [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Activated metal Bi and La modified SAPO-34 molecular sieve and its photocatalytic degradation of formaldehyde in aqueous solution

Chen,

Wang,

Zhang

et al. 2023

Res Chem Intermed

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As a new type of photocatalyst, molecular sieve photocatalysts have shown great promise in the degradation of organic matter in water bodies. In this paper, a new type of molecular sieve photocatalyst was successfully prepared by introducing Bi and La elements into the hydrothermal synthesis of SAPO-34 molecular sieve for the purpose of regulating the molecular sieve backbone. The introduction of active metals into the skeleton of molecular sieve can enrich the L acid sites on its surface, and at the same time, the introduction of active metals can accelerate the transfer rate of photogenerated carriers, which can also suppress the compounding rate of electron holes. It showed excellent performance in the photocatalytic degradation of formaldehyde, and the degradation rate constant k could reach 0.3222 min − 1 within 6 h. This study provides a new method for the preparation of molecular sieve photocatalysts and a new idea for the construction of bifunctional photocatalysts.

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Section: Introductionmentioning

confidence: 99%

Activated metal Bi and La modified SAPO-34 molecular sieve and its photocatalytic degradation of formaldehyde in aqueous solution

Chen,

Wang,

Zhang

et al. 2023

Res Chem Intermed

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The development and application of Cu@TiO2@SAPO-34 as better photocatalyst towards degradation of various pollutants

Lukong,

Chukwuati,

Enebe

et al. 2024

Environmental Technology & Innovation

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Activated metal Bi and La modified SAPO-34 molecular sieve and its photocatalytic degradation of formaldehyde in aqueous solution

Chen,

Wang,

Zhang

et al. 2023

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As a new type of photocatalyst, molecular sieve photocatalysts have shown great promise in the degradation of organic matter in water bodies. In this paper, a new type of molecular sieve photocatalyst was successfully prepared by introducing Bi and La elements into the hydrothermal synthesis of SAPO-34 molecular sieve for the purpose of regulating the molecular sieve backbone. The introduction of active metals into the skeleton of molecular sieve can enrich the L acid sites on its surface, and at the same time, the introduction of active metals can accelerate the transfer rate of photogenerated carriers, which can also suppress the compounding rate of electron holes. It showed excellent performance in the photocatalytic degradation of formaldehyde, and the degradation rate constant k could reach 0.3222 min− 1 within 6 h. This study provides a new method for the preparation of molecular sieve photocatalysts and a new idea for the construction of bifunctional photocatalysts.

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Development and study of a bifunctional photocatalyst based on SAPO-34 molecular sieve

Abstract: A new method of molecular sieve modification, synthetic modification, has been developed to successfully combine SAPO-34 molecular sieve with BiVO4 crystals to build a new bifunctional composite molecular sieve photocatalyst....

Cited by 3 publications

References 62 publications

Activated metal Bi and La modified SAPO-34 molecular sieve and its photocatalytic degradation of formaldehyde in aqueous solution

Activated metal Bi and La modified SAPO-34 molecular sieve and its photocatalytic degradation of formaldehyde in aqueous solution

The development and application of Cu@TiO2@SAPO-34 as better photocatalyst towards degradation of various pollutants

Activated metal Bi and La modified SAPO-34 molecular sieve and its photocatalytic degradation of formaldehyde in aqueous solution

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